TWM530655U - Safety syringe device - Google Patents

Description

Safety needle device

The creation is a safety needle device, especially a safety needle device which utilizes ingenious innovative components combined between the injection syringe and the needle seat component made by the existing skillful technology, thereby resulting in a relatively stable combination. It does not fall off, and it achieves a safe needle device with excellent safety.

In modern medicine, it is a normal state to use injection and infusion methods for treatment. After using the syringe needle, the sheath will be put in time to prevent accidental stab wounds and infections to patients or medical staff, but in fact the syringe The handling control process before the needle is discarded is often not rigorous enough, resulting in accidental puncture of the syringe and infection of the virus, and the use of the syringe may also be recycled and reused.

The prior art is directed to a syringe sheath structure design for a syringe, which mainly comprises a syringe barrel. The syringe barrel is provided with a needle holder. The needle holder protrudes from a needle for injection, and the needle holder is provided with a needle for protecting the needle. a sheath, the lower portion of the sheath is provided with a joint mechanism for bending, and the sheath is placed against the side of the needle cover before the syringe is used; in use, the sheath is first used The connecting mechanism is turned down, and the needle cover is removed to expose the needle to perform an injection operation. When the injection is completed, the safety sheath is pushed toward the needle, and a fastening structure is connected below the connecting mechanism. The capping structure facilitates the sheathing of the sheath to the needle and covers the needle cap to avoid exposure for the purpose of protecting the needle after use.

The sheath structure of the prior art injection needle can protect the purpose of the needle after use, but there are still defects. For example, the sheath is integrally connected to the side of the needle holder. The needle seat and the sheath need to be equipped with complex molds, which will increase the complexity and cost of the production, which is not economical, and the combination of the needle seat and the sheath can be arbitrarily separated, so that the discarded syringe needle can be processed subsequently. There is a loophole in the operation, so the prior art has an undesired design for the integral structure of the sheath and the needle hub of the needle.

In view of the shortcomings in the use of the sheath structure of the existing syringes and the fact that the structural design is not ideal, the development of the solution is promoted to promote the development of the industry, and the creation of the creation is achieved through a long-term conception.

The main purpose of the present invention is to provide a safe injection needle device which can utilize the ingenious innovative components to be combined between the injection syringe and the needle seat assembly made by the existing skillful technology to facilitate the manufacture of the safety needle device and It is reduced in cost, and its combination is quite stable and does not fall off, so that it has excellent safety in use.

The second purpose of the present invention is to provide a safe injection needle device which can prevent the danger of medical personnel caused by the exposure of the needle of the injection needle, and the used needle is indeed locked inside the protective sleeve and cannot be taken out, so as to prevent the being Use again.

In order to achieve the above object and effect, the technical means adopted by the present invention include a safety injection needle device, comprising: an injection syringe, comprising a syringe, a syringe joint at the front end of the syringe; a needle device The utility model comprises a needle socket, the needle socket is sleeved on the needle cylinder joint, a needle head is arranged at the front end of the needle holder, and an actuation main body portion comprises a fixed U-shaped portion, a movable U-shaped portion and a film soft hinge portion. a port and a V-shaped elastic body disposed between the two ends of the opening, the film soft hinge portion is disposed between the tip ends of the film connecting the two U-shaped portions, and has a relatively loose connection length, so that The two U-shaped portions are integrally connected by a connecting length of a loose film soft hinge portion; the opening is disposed between the two long ends of the two U-shaped portions, and the fixed U-shaped portion is coupled to the needle holder, the fixing The U-shaped portion and the movable U-shaped portion can perform a relative bending and reversing operation without resistance by the slack length film soft hinge portion, and an end portion of the movable U-shaped portion is provided with an upwardly extending receiving portion; The protective cover has a set of spaces for the protective cover a front end side is provided with a plug portion, the plug The connecting portion is connected to the receiving portion of the movable U-shaped portion to connect the movable U-shaped portion with the protective sleeve; thus, the fixed U-shaped portion and the movable U-shaped portion are obtained by the injection medical action The flexible soft hinge portion of the slack connection length performs a relatively bending-free relative bending reversal operation, and the port is further provided with a strong elastic force provided by the V-shaped elastic body, so that the two U-shaped portions are performed When the bending and turning operation is performed, the protective sleeve is provided with sufficient elastic strength and quick-fastening cooperation force, and the needle of the front end of the needle holder is instantaneously buckled in the protective sleeve as soon as the finger is turned.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected to the fixed U-shaped portion by a film soft hinge portion thereof, and the short side is soft with a thin film. The hinge portion is coupled to the predetermined length of the movable U-shaped portion, the long side of the V-shaped elastic body is at least 30% larger than the short side, and the length ratio of the preferred long side to the short side of the V-shaped elastic body is 2 ratio 1.

The V-shaped elastomer has at least one elastic rib thereon.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U The shape is combined with the protective cover.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

In order to achieve the above-mentioned purpose and effect, the other technical means adopted by the present invention include: an injection syringe comprising a syringe, a syringe joint at the front end of the syringe; and a needle device including a needle holder. The needle seat is sleeved on the syringe joint, the needle holder is provided with a needle at the front end of the needle holder, and the needle holder is provided with two screwing flanges; the actuation body portion comprises a fixed U-shaped portion, a movable U-shaped portion, a sleeve and a film. a soft hinge portion, a through opening and a V-shaped elastic body disposed at the opening, the soft hinge portion of the film is disposed between the end portions of the connecting portions of the U-shaped portions, and has a relatively loose connection length, so that The two U-shaped portions are integrally connected by a loose connection length; the opening is disposed between the two long ends of the two U-shaped portions, and the fixed U-shaped portion and the movable U-shaped portion are formed by the slack length film soft hinge The portion of the U-shaped portion is provided with an upwardly extending receiving portion; the fixed U-shaped portion is integrally coupled to the sleeve, and the front end of the sleeve is provided with a threaded thread a connector having a rear end having an inner flange at an inner circumference thereof, a screw flange of the needle device being screwed with a thread of the screw connector, and a rear end flange of the sleeve is tightly coupled to the syringe connector a protective sleeve; the protective sleeve has a set of space, the front end of the protective sleeve is provided with a plug portion, and the plug portion is assembled to the insertion portion of the movable U-shaped portion, so that the movable U The shape is coupled to the protective sleeve; thus, the fixed U-shaped portion and the movable U-shaped portion are subjected to a relatively non-resistive relative bending and folding operation by the flexible soft hinge portion of the slack joint length after the injection medical behavior is completed. In addition, the strong elastic force of the V-shaped elastic body is further provided at the opening, so that when the two U-shaped portions are bent and turned, the protective sleeve is provided with sufficient elastic strength and cooperation force, as long as Fingers are about to be needles at the front of the needle holder Beyond the protective sheath.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected to the fixed U-shaped portion by a film soft hinge portion thereof, and the short side is soft with a thin film. The hinge portion is coupled to the predetermined length of the movable U-shaped portion, the long side of the V-shaped elastic body is at least 30% larger than the short side, and the length ratio of the long side to the short side of the V-shaped elastic body is 2 Than 1.

The V-shaped elastomer has at least one elastic rib thereon.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U The shape is combined with the protective cover.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

In order to achieve the above-mentioned purpose and effect, another technical means adopted by the present invention comprises: an injection syringe comprising a syringe, a syringe joint at the front end thereof; and a needle device including a needle holder. The needle seat is tightly fitted to the syringe joint, the needle seat The front end is provided with a needle; the actuating main body portion comprises a fixed U-shaped portion, a movable U-shaped portion, a film soft hinge portion, a through opening, a V-shaped elastic body disposed at the opening, and a sleeve, the film The soft hinge portion is disposed between the end portions of the two U-shaped portions and has a relatively loose connection length, so that the two U-shaped portions are integrally connected by a loose connection length; the opening is provided in the two U-shaped portions Between the two long ends, the fixed U-shaped portion and the movable U-shaped portion can perform a non-resisting relative bending and reversing operation by the slack length film soft hinge portion, and the movable U-shaped portion is provided with an upwardly extending insertion end. The fixed U-shaped portion is integrally coupled to the kit, and the actuating body portion is tightly fitted to the needle holder by the kit; a protective sleeve having a space for the front end of the protective sleeve Having a plug portion that is coupled to the insertion portion of the movable U-shaped portion to connect the movable U-shaped portion with the protective sleeve; thus, the fixed U-shaped portion and the injecting medical action are completed The flexible U-shaped portion of the movable U-shaped portion by the slack connection length a relatively bending-free turning operation with almost no resistance, and a strong elastic force of the V-shaped elastic body is additionally provided at the opening, so that when the two U-shaped portions are bent and turned, the protective cover is provided The elastic buckle with sufficient strength can be used to fasten the needle at the front end of the needle holder to the protective sleeve.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected to the fixed U-shaped portion by a film soft hinge portion thereof, and the short side is soft with a thin film. The hinge portion is coupled to the predetermined length of the movable U-shaped portion, the long side of the V-shaped elastic body is greater than the short side by at least 30%, and the ratio of the preferred long side to the short side of the V-shaped elastic body is 2 ratio 1.

The V-shaped elastomer has at least one elastic rib thereon.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U The shape is combined with the protective cover.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

In order to achieve the above-mentioned purpose and effect, the present invention includes: a syringe, including a syringe, a syringe joint at the front end thereof, and an outer cylinder of the syringe connector. a threaded screw-type connector; a needle device comprising a needle holder sleeved to the syringe barrel, a needle head at the front end of the needle holder, and a corresponding screw flange at the rear end of the needle holder An actuating main body portion comprising a fixed U-shaped portion, a movable U-shaped portion, a film soft hinge portion, a through opening, a V-shaped elastic body disposed at the opening, and a kit, the film soft hinge The portion is disposed between the end portions of the film connecting the two U-shaped portions, and has a relatively loose connection length, so that the two U-shaped portions are integrally connected by a loose connection length; the opening is disposed in the two U-shaped portions An end portion of the movable U-shaped portion is provided with an upwardly extending receiving portion; the fixed U-shaped portion is integrally coupled to the sleeve, and the actuating body portion is sleeved to the outer periphery of the threaded connector with the kit The needle seat of the needle device has a second screw convex at the rear end thereof Splicing together with the thread on the inner circumference of the threaded connector; a protective sleeve having a space for the front end of the sleeve is provided with a plug portion, the plug portion is coupled to the sleeve The insertion portion of the movable U-shaped portion connects the movable U-shaped portion with the protective sleeve: thus, when the injection medical action is completed, the fixed U-shaped portion and the movable U-shaped portion are softly connected by the length of the slack connection The hinge portion performs a relatively bending-free turning operation with almost no resistance, and the through-port is further provided with a strong elastic force of the V-shaped elastic body itself, so that the two U-shaped portions are bent and turned over The protective cover is provided with sufficient elastic strength to cooperate with each other, and the needle of the front end of the needle seat is buckled into the protective cover as soon as the finger is swiped.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected to the fixed U-shaped portion by a film soft hinge portion thereof, and the short side is soft with a thin film. The hinge portion is coupled to the predetermined length of the movable U-shaped portion, the long side of the V-shaped elastic body is greater than the short side by at least 30%, and the ratio of the long side to the short side of the V-shaped elastic body is 2 ratio 1.

The V-shaped elastomer has at least one elastic rib thereon.

A C-shaped fastener for stopping is placed on the front of the kit.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U Shape and the The protective cover is combined.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

In order to achieve the above objects and effects, the present invention includes: a syringe, including a syringe, a syringe joint at the front end thereof; and a needle device including a needle holder, the needle The sleeve is sleeved on the syringe joint, and a needle head is arranged at the front end of the needle holder; an actuating body portion includes a fixed U-shaped portion, a movable U-shaped portion, a film soft hinge portion, a through port, and a through hole a V-shaped elastic body at the mouth and a kit, the soft hinge portion of the film being disposed between the end portions of the connecting portions of the U-shaped portions and having a relatively loose connection length, so that the two U-shaped portions are connected by the length of the slack connection Integrating; the opening is disposed between the two long ends of the two U-shaped portions; and the movable U-shaped portion is provided with an upwardly extending receiving portion, the fixed U-shaped portion is integrally coupled to the kit, and the operating body is The sleeve is tightly fitted to the syringe joint; the protective sleeve has a set space, and the front end of the protective sleeve is provided with a plug portion, and the plug portion is assembled to the movable U a receiving portion of the shape that connects the movable U-shaped portion to the protective sleeve Putting together; thus, when the injection medical action is completed, the fixed U-shaped portion and the movable U-shaped portion perform a relatively non-resisting relative bending and reversing operation by the film soft hinge portion of the slack connection length, and the opening is added At the same time, the strong elastic force of the V-shaped elastic body is assisted, so that when the two U-shaped portions are bent and turned, the protective sleeve is provided with sufficient elastic strength to cooperate with each other, as long as the finger is about to be placed The needle at the front end of the needle holder is snapped into the protective sleeve.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected to the fixed U-shaped portion by a film soft hinge portion thereof, and the short side is soft with a thin film. The hinge portion is coupled to the predetermined length of the movable U-shaped portion, wherein the long side of the V-shaped elastic body is greater than the short side by at least 30%, and the ratio of the preferred long side to the short side of the V-shaped elastic body is 2 to 1.

The V-shaped elastomer has at least one elastic rib thereon.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U The shape is combined with the protective cover.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

In order to achieve the above objects and effects, the present invention includes: a syringe, including a syringe, a syringe joint at the front end thereof; and a needle device including a needle holder, the needle The sleeve is sleeved on the syringe joint, and a needle head is arranged at the front end of the needle holder; an actuating body portion includes a fixed U-shaped portion, a movable U-shaped portion, a film soft hinge portion, a through port, and a through hole a V-shaped elastomer at the mouth and a kit, the soft hinge portion of the film being disposed between the end portions of the film between the two U-shaped portions, and having a relatively loose connection length to relax the two U-shaped portions The connecting length is integrated; the opening is disposed between the two U-shaped end ends, and the movable U-shaped portion is provided with an upwardly extending receiving portion, the fixed U-shaped portion is integrally coupled to the sleeve, and the front end of the front end of the sleeve The thread having a larger diameter is screwed with the opposite flanges of the rear end of the needle holder, and the inner circumference of the rear end has an inner flange having a smaller diameter, and the main body of the actuator has a smaller diameter of the rear port of the kit. The flange is tightly fitted to the outside of the syringe joint a protective cover having a set of spaces, the front end of the protective sleeve is provided with a plug portion, and the plug portion is coupled to the receiving portion of the movable U-shaped portion to make the movable U shape The portion is coupled to the protective sleeve; thus, when the injection medical action is completed, the fixed U-shaped portion and the movable U-shaped portion are subjected to the relatively bending-free relative bending and reversing operation by the flexible soft hinge portion of the slack joint length And the strength elastic force of the V-shaped elastic body provided at the opening is assisted, so that when the two U-shaped portions are bent and turned, the protective sleeve is provided with sufficient elastic strength and cooperation force. As soon as the finger is pressed, the needle at the front end of the needle holder is snapped into the protective sleeve.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the length Attached to the fixed U-shaped portion by a predetermined length of the flexible U-shaped portion thereof, the short side being joined to the movable U-shaped portion by a predetermined length of the flexible U-shaped portion, the V-shaped elastic body The long side is at least 30% larger than the short side, and the preferred length of the long side to the short side of the V-shaped elastic body 35 is 2 to 1.

The V-shaped elastomer has at least one elastic rib thereon.

A locking circular fastener is placed in front of the inner flange of the rear end of the sleeve.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U The shape is combined with the protective cover.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

In order to achieve the above objects and effects, the present invention includes: a syringe, including a syringe, a syringe joint at the front end thereof; and a needle device including a needle holder, the needle The sleeve is sleeved on the syringe joint, and a needle head is arranged at the front end of the needle holder; an actuating body portion includes a fixed U-shaped portion, a movable U-shaped portion, a film soft hinge portion, a through port, and a through hole a V-shaped elastomer at the mouth and a kit, the soft hinge portion of the film being disposed between the end portions of the film between the two U-shaped portions, and having a relatively loose connection length to relax the two U-shaped portions The connecting length is integrated; the opening is disposed between the two U-shaped end ends, and the movable U-shaped portion is provided with an upwardly extending receiving portion; the fixed U-shaped portion is integrally coupled to the sleeve, and the front end of the assembly is a tight fit is secured to the rear end of the needle holder of the needle device, and the actuation body portion is tightly fitted to the outer circumference of the syringe joint with a rear end of the sleeve; a protective sleeve having a space for the sleeve The front end of the protective sleeve is provided with a plug portion The plug portion is coupled to the insertion portion of the movable U-shaped portion to connect the movable U-shaped portion with the protective sleeve; thus, the fixed U-shaped portion and the movable U-shaped portion are borrowed after the injection medical action is completed When the film soft hinge portion of the slack connection length is subjected to a relatively bending-free relative bending inversion operation, the V-shaped elastic body provided at the opening is added Providing a strong elastic force to help the two U-shaped portions to perform the bending and turning operation, providing the protective sleeve with sufficient elastic strength and quick-fastening cooperation force, as soon as the finger is swiped, the needle at the front end of the needle holder is snapped into the needle Inside the protective cover.

The V-shaped elastic body is composed of a long side and a short side to form an elastic plate body, and the long side is connected to the fixed U-shaped portion by a film soft hinge portion thereof, the short side being a film thereof The soft hinge portion is coupled to the predetermined length of the movable U-shaped portion, the long side of the V-shaped elastic body is at least 30% or more larger than the short side, and the preferred length of the long side to the short side of the V-shaped elastic body is 2 Than 1.

The V-shaped elastomer has at least one elastic rib thereon.

The insertion portion has a receiving portion, and the insertion portion of the protective sleeve is inserted into the receiving portion socket, so that the insertion portion is engaged and positioned at the connecting portion, thereby making the active U The shape is combined with the protective cover.

The protective cover includes a base plate, two side plates around the base plate, and a sleeve body formed by the one end plate, so that the protective cover has a set space, and the side plate is provided with at least one guard strip extending obliquely to the sleeve space. The strips on both sides of the board are staggered so that the needle can no longer be removed once it enters the nested space.

The specific embodiments of the present invention will be further described by the following examples and accompanying drawings.

10‧‧‧Injection syringe

10C‧‧‧injection syringe

11‧‧‧Syringe

12‧‧‧Syringe connector

121‧‧‧through hole

13‧‧‧Piston putter

14C‧‧‧ threaded connector

141C‧‧ thread

20‧‧‧needle device

20A‧‧ needle device

21‧‧‧ needle seat

21A‧‧‧ needle seat

211A‧‧‧ screw flange

22‧‧‧Needle support sleeve

22A‧‧‧needle support sleeve

23‧‧‧ needle

23A‧‧ needles

30‧‧‧Action main body

30A‧‧‧Action Main Body

30B‧‧‧Activity Main Body

30C‧‧‧Activity Main Body

30D‧‧‧Action Main Body

30E‧‧‧Activity Main Body

30F‧‧‧Activity Main Body

31‧‧‧Fixed U-shaped

32‧‧‧ Activities U-shaped

33‧‧‧film soft hinge part

330‧‧‧ mouth

34‧‧‧Received part

341‧‧‧Connector jack

35‧‧‧V-shaped elastomer

351‧‧‧ long side

3511‧‧‧film soft hinge part

352‧‧‧ Short side

3521‧‧‧film soft hinge

353‧‧‧Flexible ribs

38A‧‧‧ kit

38B‧‧‧ kit

39C‧‧‧ kit

38D‧‧‧ kit

38E‧‧‧ kit

38F‧‧‧ kit

381A‧‧ thread

381E‧‧ thread

381F‧‧‧ front end

382A‧‧‧ inner flange

382E‧‧‧ inner flange

382F‧‧‧ backend

383A‧‧‧ threaded connector

39A‧‧‧elastic washer

39C‧‧‧C type fasteners

39E‧‧‧ Round fasteners

40‧‧‧ protective cover

41‧‧‧Substrate

42‧‧‧ side panels

421‧‧‧

422‧‧‧The Ministry of Movement

43‧‧‧End plate

44‧‧‧ Layout space

45‧‧‧Interface

451‧‧‧crack

1 is a perspective view of a first embodiment of the present invention; FIG. 2 is an exploded perspective view of the first embodiment of the creation; FIG. 3 is a perspective view of the cover of the creation of the protective cover; FIG. 4B is a schematic cross-sectional view of the first state before the cover of the protective cover body is closed, and FIG. 4C is a front view of the first embodiment of the protective cover before the cover is actuated. A schematic diagram of a three-state profile; FIG. 4D is a diagram illustrating a state in which the main body of the protective cover is fully closed; Figure 5 is a perspective exploded view of the second embodiment of the present invention; Figure 6 is a schematic cross-sectional view of the second embodiment; Figure 7 is a perspective view of the protective cover of the second embodiment of the present invention; FIG. 8B is a perspective view showing the operation of the protective cover of the second embodiment; FIG. 9 is a perspective exploded view of the third embodiment of the present invention; FIG. 3 is a perspective view of the third embodiment of the creation; FIG. 11 is a perspective view of the cover of the 10th embodiment; FIG. 12 is a perspective exploded view of the fourth embodiment of the creation; FIG. 13 is a perspective view of the fourth embodiment of the present invention; FIG. 14 is a perspective view of the protective cover of the fourth embodiment; FIG. 15 is a plan view of FIG. Figure 16 is a schematic plan view of Fig. 14; Fig. 17 is a perspective exploded view of the fifth embodiment of the present invention; Fig. 18 is a partial cross-sectional view of the fifth embodiment; and Fig. 19 is a protective cover of the fifth embodiment. Partial section 20 is a perspective exploded view of a sixth embodiment of the present invention; FIG. 20A is another perspective exploded view of the sixth embodiment of the present invention; and FIG. 21 is a partial cross-sectional view of the sixth embodiment; 6 is a partial cross-sectional view of the protective cover of the sixth embodiment; FIG. 23 is a perspective exploded view of the seventh embodiment; and FIG. 24 is a partial cross-sectional view of the seventh embodiment.

Please also refer to FIGS. 1 to 3, which are a perspective view and a perspective exploded view of the first embodiment of the present invention. The safety needle device includes an injection syringe 10 and a needle device. 20. Actuating the main body portion 30 and a protective cover 40.

The syringe barrel 10 includes a syringe barrel 11 having a syringe end 12 at the front end and a piston push rod 13 at the rear end thereof, the syringe barrel 12 having a through hole 121 communicating with the inside of the barrel 11; The needle device 20 includes a needle holder 21, and the needle holder 21 is sleeved on the syringe connector 12. The needle holder 21 is provided with a needle support sleeve 22 at the front end thereof, and a needle 23 is inserted and coupled to the needle support sleeve 22 Needle holder 21.

The actuating body portion 30 includes a fixed U-shaped portion 31, a movable U-shaped portion 32 and a V-shaped elastic body 35. The fixed U-shaped portion 31 and the movable U-shaped portion 32 are in a nearly 90 degree spatial relationship with each other under static tension. a rectangular frame connected to a deformable body, wherein the rectangular frame has a through port 330. The long ends of the rectangular frame in the through port 330 are connected to the V-shaped elastic body 35 by a film soft hinge, and the two U-shaped portions 31 and 32. A thin flexible frame portion 33 is connected to form a rectangular frame of a variable shape. In a preferred embodiment, the film flexible hinge portion 33 is disposed on both sides of the through port 330. The film flexible hinge portion 33 The fixed U-shaped portion 31 and the movable U-shaped portion 32 are made by the film soft hinge portion 33 in a spatial relationship at a corner end of the connection between the fixed U-shaped portion 31 and the movable U-shaped portion 32. The film soft hinge portion 33 has an excess length (as shown) sufficient to allow the movable U-shaped portion 32 to have sufficient space for the film flexible hinge portion 33 to be fixed when flipped. The U-shaped portion 31 is quickly turned over so that the V-shaped elastic body 35 can be completely emitted with almost no resistance. Its strong elastic force cover bonded, as shown in FIG. 4A-4D in the first step is a schematic diagram illustrating a strong capping.

In this embodiment, the fixed U-shaped portion 31 is integrally coupled to the needle holder 21, and the lengths of the arms on both sides of the fixed U-shaped portion 31 (as shown in FIG. 4A) are sufficiently long to enable the movable U The turning force of the shape 32 is optimal, and the end of the movable U-shaped portion 32 extends upwardly with a vertically protruding receiving portion 34 having a receiving portion 341 at the opening 330. A V-shaped elastic body 35 is formed at the back portion, and the V-shaped elastic body 35 is formed of a long side 351 and a short side 352 to form an elastic plate body (as shown in FIGS. 3 to 4), and the V-shaped elastic body 35 is a long side 351 film soft hinge portion 3511 connected to the fixed U-shaped portion 31 and the short side 352 film soft hinge portion 3521 is connected to The movable U-shaped portion 32 is such that the two U-shaped portions generate sufficient sufficient elastic strength to cooperate when performing the bending and turning operation.

The back of the V-shaped elastic body 35 is additionally provided with elastic ribs 353 to reinforce the elastic function of the V-shaped elastic body 35. The long side 351 of the V-shaped elastic body 35 is substantially larger than the short side 352 by at least 30%. The preferred ratio of the length of the long side 351 to the short side 352 is 2 to 1, and the strong arming force is achieved by the force arm relationship between the long and short sides, which is one of the main features of the present creation.

The protective cover 40 includes a base plate 41 and a sleeve formed by the two side plates 42 and the one end plate 43 around the base plate 41, and the protective cover 40 has a set space 44, and the side plate 42 is provided with at least one direction. The guards 421 of the space 44 are inclined, and the guards 421 of the two side plates 42 are disposed in a staggered space relationship, and the side plates 42 are provided with a tilting outwardly turning portion 422 for facilitating the toggle operation of the protective cover 40. The front end of the protective cover 40 is provided with a plug portion 45. The plug portion 45 is provided with a split slot 451 to ensure that the plug portion 45 is firmly inserted.

When the first embodiment of the present invention is combined, the insertion portion 45 of the protective cover 40 is inserted into the connector insertion hole 341 of the insertion portion 34 which is vertically protruded from the movable U-shaped portion 32, and the insertion is made. The connecting portion 45 is locked and positioned at the connecting portion receptacle 341, that is, the assembly positioning of the movable U-shaped portion 32 (ie, the actuating main body portion 30) and the plug portion 45 (ie, the protective sleeve 40) is completed, and the operating body is activated. The portion 30 and the protective sleeve 40 are opposite to one side of the needle holder 21, so that the protective sleeve 40 is bent relative to the needle 23 and can be locked and locked (as shown in Figures 3 and 4D).

Please refer to FIG. 4A to FIG. 4D , which are schematic cross-sectional views showing the protective cover of the first embodiment of the present invention before and after the cover body is fully closed. When the syringe 10 is used, the needle 23 is to be locked. When the sleeve 40 is gently moved in the direction of the needle 23, the change in the opening angle of the V-shaped elastic body 35 is changed from about 65° in FIG. 4A to about 87° in FIG. 4B. At the angle, the V-shaped elastic body 35 starts to store the elastic energy, and when the opening angle of the V-shaped elastic body 35 becomes an angle of about 100° as shown in Fig. 4C, the elastic energy stored by the V-shaped elastic body 35 is immediately Released, and then borrowed the movable U-shaped portion 32 (ie, corresponding to the protective sleeve 40) to the two of the fixed U-shaped portion 31 The end of the side arm and the soft hinge portion 33 of the film are flipping fulcrums, so that the movable U-shaped portion 32 (the protective sleeve 40) can be bent counterclockwise to the fixed U-shaped portion 31, and the elastic effect of the V-shaped elastic body 35 is utilized. The sufficient strength provided by the force to engage the elastic force, so that the rear stroke of the protective sleeve 40 is self-locking to lock the action of the needle 23, and the needle 23 is forced to pass through the strip 421. After the press-in is locked in the sleeve space 44, it cannot be withdrawn, as shown in Figures 3 and 4D. It should be noted that when the V-shaped elastic body 35 is to be further reinforced with its fastening elastic force, an elastic rib 353 may be added to the back of the V-shaped elastic body 35, as shown in Fig. 3.

Please refer to the fifth embodiment of the present invention. The second embodiment of the present invention is the same as that of the first embodiment, and has the same functions, and the description is omitted. The difference between the two is as follows: The needle device 20A includes a needle holder 21A. The needle holder 21A is sleeved on the syringe connector 12. The needle holder 21A is provided with a needle support sleeve 22A. The needle holder 23A is inserted and coupled to the needle support sleeve 22A. The needle hub 21A is sleeved to the needle hub 21A.

The actuating body portion 30A includes a fixed U-shaped portion 31, a movable U-shaped portion 32, and a sleeve 38A. The fixed U-shaped portion 31 is integrally coupled to the sleeve 38A. The front end of the sleeve 38A is a threaded connector having a thread 381A therein. 383A, the inner end is provided with an inner flange 382A, and the needle seat 21A of the needle device 20A is provided with a second screwing flange 211A and a thread 381A in the screw connector 383A, wherein the needle connector 12 is a straight-in type, which is combined with the needle holder 21A by a sleeve 38A. If there is a need for adhesion, a resilient washer 39A is added between the syringe hub 12 and the inner flange 382A, as shown in Fig. 6.

When the actuating body portion 30A is combined with the protective cover 40, the actuating body portion 30A and the protective cover 40 are located on the side of the needle holder 21A, and the protective cover 40 is also disposed relative to the needle 23, as in the first embodiment. The state of snapping immediately after the bend is reversed, as shown in Figures 6, 6A and 8A. When the syringe 10 is to be sheathed for the needle 23 after use, the movable U-shaped portion is made by the film soft hinge portion 33 when the protective cover 40 is moved toward the needle 23 in the same manner as the first embodiment. The portion 32 (the protective cover 40) is capable of bending and rotating the fixed U-shaped portion 31, and borrowing the V-shaped elasticity The body 35 itself has a strong fastening elastic force, and provides sufficient and sufficient strength of the fastening elastic force, so that the rear stroke of the protective sleeve 40 is self-closing the needle 23 as long as the finger is lightly dialed, and Once the needle 23 is pressed into the locking strip 421 of the protective sleeve 40, it is positioned and locked in the sleeve space 44 and can no longer be withdrawn, as shown in Figures 7 and 8B.

Please refer to the figures 9 to 11 for the third embodiment of the safety injection needle device of the present invention. The partial structure is the same as that of the second embodiment and has the same function. Therefore, the same reference numerals are used and the description is omitted. The difference between the two is as follows: The actuation body portion 30B includes a fixed U-shaped portion 31, a movable U-shaped portion 32, and a sleeve 38B. The fixed U-shaped portion 31 is integrally coupled to the sleeve 38B, wherein the syringe hub 12 is sleeved on the needle holder 21A. The actuation main body portion 30B is sleeved on the needle hub 21A by the sleeve 38B, and when the actuation main body portion 30B is combined with the protective sleeve 40, the actuation main body portion 30B and the protective sleeve 40 are located opposite to the needle in the same manner as in the second embodiment. One side of the seat 21A is in a state in which the protective cover 40 is bent and inverted with respect to the needle 23A, as shown in Fig. 10.

When the needle 23A is to be sheathed after use of the needle, as in the second embodiment, the sheath 40 is moved in the direction of the needle 23A, and the movable U-shaped portion 32 is made by the film soft hinge portion 33 ( The protective sleeve 40) is bent and turned to the fixed U-shaped portion 31, and by the strong elastic force of the V-shaped elastic body 35 itself, the fastening elastic force of sufficient strength is provided, so that the protective sleeve 40) The rear stroke of the protective sleeve 40 is self-locking the function of the needle 23A, and once the needle 23A is pressed through the locking strip 421, the needle 23A is locked in the sleeve space 44 and cannot be retracted. As shown in Figure 11.

Please refer to the figures 12 to 16, which are the fourth embodiment of the safety needle device of the present invention. The partial structure is the same as that of the second embodiment and has the same function, so the same reference numerals are used and the description is omitted. The difference between the two is The actuation body portion 30C includes a fixed U-shaped portion 31, a movable U-shaped portion 32, and a sleeve 38C. The fixed U-shaped portion 31 is integrally coupled to the sleeve 38C, wherein the syringe hub 12 is sleeved to the needle holder. 21, a threaded connector 14C is disposed outside the syringe connector 12, and a screw thread 141C is disposed on the inner circumference of the screw connector 14C; a second screw flange is disposed at the rear end of the needle holder 21 of the needle device 20A. 211A is screwed and fixed to the thread 141C of the screw connector 14C; The main body portion 30C is tightly sleeved on the outer circumference of the screw connector 14C by the sleeve 38C, and if necessary, a C-type fastener 39C for stopping can be disposed in front of the sleeve 38C, as shown in FIG. 12A; When the actuation main body portion 30C is combined with the protective cover 40, as in the second embodiment, the actuation main body portion 30C and the protective sleeve 40 are located on one side of the needle holder 21A, so that the protective sleeve 40 is opposite to the needle 23A. The position of the fit is as shown in Figure 13. When the needle 23A is to be sheathed after the needle is used, the protective sleeve 40 is swung in the direction of the needle 23A in the same manner as in the second embodiment, and the movable U is actuated by the film soft hinge portion 33. The shape portion 32 (along with the protective sleeve 40) is capable of instantaneously bending and reversing the fixed U-shaped portion 31, and together with the elastic strength force of the V-shaped elastic body 35, provides sufficient sufficient strength and elastic buckle cooperation force. When the protective sleeve 40 is moved to the protective sleeve 40 by the finger, the operating function of the self-locking and locking the needle 23A is generated, and the needle 23A is passed through the strip 421. It is pressed in, and the positioning is locked in the sleeve space 44 and cannot be withdrawn and reused, as shown in Fig. 14. The back of the V-shaped elastic body 35 of the present embodiment, like the second embodiment, may be provided with elastic ribs 353 as necessary to reinforce the elastic function of the V-shaped elastic body 35.

Referring to Figures 17 to 19, the fifth embodiment of the safety needle device of the present invention is the same as that of the third embodiment and has the same function. Therefore, the same reference numerals are used and the description is omitted. The difference between the two is as follows: The actuation body portion 30D includes a fixed U-shaped portion 31, a movable U-shaped portion 32, and a sleeve 38D. The fixed U-shaped portion 31 is integrally coupled to the sleeve 38D and has an arcuate abutment extending downwardly corresponding to the shape of the needle holder 21A. The kit 38D of the actuation main body portion 30D is sleeved on the outer surface of the syringe hub 12, and when the actuation main body portion 30D is combined with the protective sleeve 40, the actuation main body portion 30D is the same as that of the third embodiment. The protective cover 40 is opposite to the side of the needle holder 21A, so that the protective sleeve 40 can be buckled and inverted with respect to the needle 23, as shown in Figures 18-19, and when the needle is used. When the protective sleeve is to be locked for the needle 23, the situation is the same as that of the third embodiment. When the protective sleeve 40 is pushed and pushed in the direction of the needle 23, the movable U-shaped portion 32 is made by the film soft hinge portion 33. The protective cover 40 is bent and turned toward the fixed U-shaped portion 31, and By the V-shaped elastic member 35 itself has a strong engaging force of the assist action of sufficient strength to provide adequate The elastic interaction force is fastened, so that the rear stroke of the protective sleeve 40 is self-locking to lock the needle 23A as soon as the finger is swiped, and the needle 23A is pressed into the locking strip 421 once it is pressed. It is located in the arranging space 44 and can no longer be withdrawn, as shown in Fig. 19.

Please refer to the figures 20 to 22, which are the sixth embodiment of the safety injection needle device of the present invention, and the partial structure thereof is substantially the same as the second embodiment and has the same function, and the same reference numerals are omitted and the related description is omitted. The difference is that the main body portion 30E, as shown in Fig. 20, includes a fixed U-shaped portion 31, a movable U-shaped portion 32 and a sleeve 38E having a larger diameter thread 381E inside the front end of the sleeve 38E, and the rear end interior The inner flange 382E (see FIGS. 21 and 22) having a smaller diameter is integrally coupled to the sleeve 38E, wherein the rear end of the sleeve 38E of the actuation main body portion 30E is smaller. The inner flange 382E is tightly fitted to the outer circumferential surface of the syringe hub 12.

If necessary, if it is to prevent loosening, a locking circular fastener 39E may be placed in front of the inner flange 382E of the sleeve 38E, so that the sleeve 38E is completely locked to the syringe joint 12 without loosening. As shown in Figures 20A, 21 and 22.

The front end of the sleeve 38E is screwed by the thread 381E having a larger diameter to the two screwing flanges 211A of the needle holder 21A of the needle device 20A; and when the actuation main body portion 30E is combined with the protective sleeve 40, the second embodiment Similarly, the actuating body portion 30E and the protective sleeve 40 are located on the side of the needle holder 21A, so that the protective sleeve 40 is bent and inverted with respect to the needle 23A, and can be locked and locked, as shown in FIG. Shown.

When the needle 23A is to be sheath-locked after the needle is used, the protective sleeve 40 is swung in the direction of the needle 23A, and the movable U-shaped portion is made by the film soft hinge portion 33. 32 (along with the protective cover 40) is capable of instantaneously bending the fixed U-shaped portion 31, and by the elastic strength of the V-shaped elastic body 35, together, the elastic force sufficient to achieve sufficient fastening strength is generated. The stroke of the protective sleeve 40 is locked by the finger to lock the needle 23A, and the needle 23A is locked in the sleeve space once it is pressed through the strip 421. Within 44, it is no longer possible to exit, as shown in Figure 22.

In the back of the V-shaped elastic body 35 in this embodiment, as in the first embodiment, if necessary, an elastic rib 353 is additionally provided to reinforce the elastic function of the V-shaped elastic body 35.

Please refer to the figures 23 to 24, which are the seventh embodiment of the safety injection needle device of the present invention, the structure of which is the same as that of the second embodiment and has the same function, so the same reference numerals are given and the related description is omitted. The safe injection of the embodiment The needle device comprises an injection syringe 10, a needle device 20A, an actuation body portion 30F and a protective sleeve 40.

The main feature of the embodiment is that the main body portion 30F is actuated. As shown in Fig. 23, the actuating main body portion 30F is coupled to a sleeve 38F. The front end 381F of the sleeve 38F is tightly fitted to the needle of the needle device 20A. The rear end of the seat 21A, and the rear end 382F of the sleeve 38F closely fits the syringe joint 12 that is sleeved at the front end of the barrel 11.

Therefore, the actuating main body portion 30F of the embodiment includes a fixed U-shaped portion 31, a movable U-shaped portion 32 and a sleeve 38F. When the actuating main body portion 30F is combined with the protective cover 40, as shown in FIGS. The actuating body portion 30F and the protective sleeve 40 are located on one side of the needle holder 21A, so that the protective sleeve 40 is bent and folded relative to the needle 23A to be in a position of being locked and locked. And when the needle is to be locked for the needle 23A after use, the protective sleeve 40 is swung in the direction of the needle 23A, and the movable U-shaped portion 32 is brought together by the film soft hinge portion 33 (along with the protective sleeve 40). The momentary bending and inversion of the fixed U-shaped portion 31 is performed, and the elastic force of sufficient sufficient fastening strength is generated by the cooperation of the elastic strength of the V-shaped elastic body 35 to make the protective sleeve 40 The rear stroke is self-locking to lock the needle 23A when the finger is swiped, and the needle 23A is locked into the sleeve space 421 once it is pressed through the strip 421, and can no longer be locked in the sleeve space 44. drop out.

In the back of the V-shaped elastic body 35 in this embodiment, if necessary, an elastic rib 353 is additionally provided to reinforce the elastic function of the V-shaped elastic body 35.

The safety needle device of the present invention uses a combination of ingenuity components to combine the injection needle and the syringe component made by the existing skillful technology to facilitate the manufacture of the safety needle device and reduce the cost, and the combination thereof is equivalent. Stable and not detached, so as to achieve Excellent security.

The safety injection needle device of the present invention provides a strong elastic force by the V-shaped elastic body and the elastic rib, so that the protective sleeve is self-locking and locking the action of the needle after the stroke of the injection medical operation is completed. The needle is automatically pressed into the protective strip and locked in the protective sleeve covering space and can no longer be withdrawn, thereby preventing the medical personnel from being contaminated by needle sticking due to the exposure of the needle, and the used needle is indeed hidden. It is fixed inside the protective cover and cannot be taken out, so as to prevent it from being reused. Therefore, it is very user-friendly and makes it easier for medical personnel to operate safely.

The above description is only for the preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Therefore, all the simple modifications and equivalent structural changes that are made by using the present specification and the contents of the drawings should be included in the same reason. Within the scope of this creation's patent.

10‧‧‧Injection syringe

11‧‧‧Syringe

12‧‧‧Syringe connector

121‧‧‧through hole

13‧‧‧Piston putter

20‧‧‧needle device

21‧‧‧ needle seat

22‧‧‧Needle support sleeve

23‧‧‧ needle

30‧‧‧Action main body

31‧‧‧Fixed U-shaped

32‧‧‧ Activities U-shaped

33‧‧‧film soft hinge part

330‧‧‧ mouth

34‧‧‧Received part

341‧‧‧Connector jack

35‧‧‧V-shaped elastomer

351‧‧‧ long side

352‧‧‧ Short side

40‧‧‧ protective cover

41‧‧‧Substrate

42‧‧‧ side panels

421‧‧‧

422‧‧‧The Ministry of Movement

43‧‧‧End plate

44‧‧‧ Layout space

45‧‧‧Interface

451‧‧‧crack

Claims (40)

A safety needle device comprises: an injection syringe (10) comprising a syringe (11), a syringe connector (12) at the front end of the syringe (11), and a needle device (20) including a needle a needle holder (21), the needle holder (21) is sleeved on the syringe hub (12), a needle head (23) is disposed at a front end of the needle holder (21), and an actuation body portion (30) includes a fixed U shape a portion (31), a movable U-shaped portion (32), a film soft hinge portion (33), a port (330), and a V-shaped elastic body (35) disposed between the two ends of the port (330) The film soft hinge portion (33) is disposed between the tip ends of the film connecting the two U-shaped portions, and has a relatively loose connection length, so that a loose film soft hinge portion is formed between the two U-shaped portions ( 33) the connection length is integrated; the opening (330) is disposed between the two long ends of the two U-shaped portions, and the fixed U-shaped portion (31) is coupled to the needle holder (21), the fixed U-shaped The portion (31) and the movable U-shaped portion (32) can perform a relative bending-free turning operation without resistance by the slack length film soft hinge portion (33), and an end of the movable U-shaped portion (32) is extended upward. a receiving portion (34); a protective sleeve (40), the protective sleeve (40) There is a space (44), and a front end of the protective sleeve (40) is provided with a plug portion (45), and the plug portion (45) is assembled to the receiving portion of the movable U-shaped portion (32) (34). The movable U-shaped portion (32) is coupled to the protective sleeve (40); thus, the fixed U-shaped portion (31) and the movable U-shaped portion (32) are relaxed by the movable medical action The film-length soft hinge portion (33) of the connection length performs a relatively bending-free relative bending-over operation, and the port (330) is provided with a strong elastic force provided by the V-shaped elastic body (35). When the two U-shaped portions are subjected to the bending and turning operation, the protective sleeve (40) is provided with sufficient elastic strength and quick-fastening cooperation force, and the needle (23) of the needle holder (21) is momentarily buckled as soon as the finger is turned. In the protective cover (40). The safety needle device of claim 1, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the fixed U-shaped portion (31) for a predetermined length, and the short side (352) is coupled to the movable U-shaped portion by the film soft hinge portion (3511). ) the predetermined length. The safety needle device of claim 2, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 2, wherein the length ratio of the preferred long side (351) to the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 4, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. The safety needle device of claim 1, wherein the insertion portion (34) has a socket portion (341), and the socket portion (45) of the protection sleeve (40) is inserted into the socket portion The joint insertion hole (341) is configured to fix the insertion portion (45) to the joint insertion hole (341), thereby combining the movable U-shaped portion (32) with the protective sleeve (40) . The safety needle device of claim 1, wherein the protective cover (40) comprises a substrate (41), two side plates (42) around the substrate (41), and an end plate (43). The sleeve has a set of spaces (44), and the side plates (42) are provided with at least one guard strip (421) extending obliquely to the sleeve space (44), and the side plates (42) The strips (421) are staggered so that the needle (23) can no longer be removed once it enters the nesting space (44). A safety injection needle device comprising: an injection syringe (10) comprising a syringe (11), a syringe connector (12) at the front end of the syringe (11); and a needle device (20A) including a needle holder (21A), the needle holder (21A) is sleeved on the syringe hub (12), and a needle head (23A) is disposed at the front end of the needle holder (21A). The needle holder (21A) is provided with a second screwing flange (21A) 211A); an actuating body portion (30A) includes a fixed U-shaped portion (31), a movable U-shaped portion (32), a kit (38A), a film soft hinge portion (33), a port (330), and a V-shaped elastic body (35) disposed at the opening (330), the film soft hinge portion (33) is disposed between the end portions of the connecting portions of the U-shaped portions, and has a relatively loose connection length. The two U-shaped portions are integrally connected by a loose connection length; the opening (330) is disposed between the two long ends of the two U-shaped portions, and the fixed U-shaped portion (31) and the movable U-shaped portion (32) are borrowed The loose-length film soft hinge portion (33) can perform a resistance-free relative bending inversion operation, and the movable U-shaped portion (32) is provided with an upwardly extending receiving portion (34); The fixing U-shaped portion (31) is integrally coupled to the sleeve (38A). The front end of the sleeve (38A) is a threaded connector (383A) having a thread (381A) therein, and a rear end of the sleeve is provided with a convex portion on the inner circumference. The edge (382A), the screw flange (211A) of the needle device (20A) is screwed with the thread (381A) of the screw connector (383A), and the inner flange of the rear end of the sleeve (38A) is provided ( 382A) is tightly fitted with the syringe connector (12); a protective sleeve (40) having a space (44), and the front end of the protective sleeve (40) is provided with a plug a portion (45), the insertion portion (45) is coupled to the insertion portion (34) of the movable U-shaped portion (32) to connect the movable U-shaped portion (32) with the protective sleeve (40) Therefore, when the injection medical behavior is completed, the fixed U-shaped portion (31) and the movable U-shaped portion (32) perform a relatively non-resistive relative bending and reversing operation by the flexible soft hinge portion (33) of the slack connection length. And the port (330) is further provided with the strong elastic force of the V-shaped elastic body (35), so that when the two U-shaped portions are bent and turned, the protective cover (40) is provided to be sufficient Sufficient strength of the elastic buckle cooperation force, as long as the finger is about to The needle end (23A) of the needle holder (21A) is fastened in the protective sleeve (40). The safety needle device of claim 8, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the fixed U-shaped portion (31) for a predetermined length, and the short side (352) is coupled to the movable U-shaped portion by the thin film flexible hinge portion (3521) portion thereof ( 32) The predetermined length. The safety needle device of claim 9, wherein the long side (351) of the V-shaped elastic body (35) is at least 30% or more larger than the short side (352), the V-shaped elastic body (35) The length ratio of the preferred long side (351) to the short side (352) is 2 to 1. The safety needle device of claim 10, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. A safety injection needle device comprising: an injection syringe (10) comprising a syringe (11), a syringe connector (12) at the front end of the syringe (11); and a needle device (20A) including a needle holder (21A), the needle holder (21A) is tightly fitted to the syringe hub (12), a needle head (23A) is disposed at the front end of the needle holder (21), and an actuation body portion (30B) includes a fixing U-shaped part (31), a movable U-shaped part (32), a film soft hinge portion (33), a port (330), a V-shaped elastic body (35) disposed at the port, and a kit (38B), the film soft hinge portion (33) Provided between the tip portions of the two U-shaped portions and having a relatively loose connection length, the two U-shaped portions are integrally connected by a loose connection length; the opening (330) is disposed at two of the two U-shaped portions Between the long ends, the fixed U-shaped portion (31) and the movable U-shaped portion (32) can perform a relative bending-free turning operation without resistance by the slack length film soft hinge portion (33), and the movable U-shaped portion (32) an end is provided with an upwardly extending receiving portion (34), the fixed U-shaped portion (31) is integrally coupled to the sleeve (38B), and the actuating body portion (30B) is tightly fitted with the sleeve (38B) Fixed to the needle holder (21A); a protective sleeve (40) having a set of spaces (44), the front end of the protective sleeve (40) is provided with a plug portion (45), The insertion portion (45) is coupled to the insertion portion (34) of the movable U-shaped portion (32) to connect the movable U-shaped portion (32) with the protective sleeve (40); thus, when injecting medical treatment After the behavior is completed, the fixed U-shaped portion (31) and the movable U-shaped portion (32) are separated by the relaxation The length of the film soft hinge portion (33) performs a relatively bending-free relative bending reversal operation, and the port (330) is further provided with a strong elastic force of the V-shaped elastic body (35). When the two U-shaped portions are subjected to the bending and turning operation, the protective sleeve (40) is provided with sufficient elastic strength of the fastening force, and the front end needle (23A) of the needle holder (21A) is fastened to the protective sleeve as soon as the finger is turned ( 40) inside. The safety needle device of claim 12, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the fixed U-shaped portion (31) for a predetermined length, and the short side (352) is coupled to the movable U-shaped portion by the thin film flexible hinge portion (3521) portion thereof ( 32) The predetermined length. The safety needle device of claim 13, wherein the long side (351) of the V-shaped elastic body (35) is at least 30% or more larger than the short side (352), the V-shaped elastic body (35) The preferred length ratio of the long side (351) to the short side (352) is 2 to 1. The safety needle device of claim 14, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. A safety injection needle device comprising: an injection syringe (10C) comprising a syringe (11) having a syringe connector (12) at the front end thereof, and an outer cylinder of the syringe connector (12) Screw threaded connector with thread (141C) (14C); a needle device (20A) comprising a needle holder (21A) sleeved to the syringe connector (12), a needle (23A) having a needle end (21A) at the front end of the needle holder (21A) The rear end is provided with a corresponding two screwing flange (211A); an actuating body portion (30C) includes a fixed U-shaped portion (31), a movable U-shaped portion (32), and a film soft hinge portion ( 33), a port (330), a V-shaped elastic body (35) disposed at the port (330), and a kit (38C), the film soft hinge portion (33) is disposed at the two U-shaped portions Between the end portions of the connected film, and having a relatively loose connection length, the two U-shaped portions are integrally connected by a loose connection length; the opening (330) is disposed between the long ends of the two U-shaped portions; An end of the movable U-shaped portion (32) is provided with an upwardly extending receiving portion (34); the fixed U-shaped portion (31) is integrally coupled to the sleeve (38C), and the actuating body portion (30C) is provided with the kit (30C) 38C) is sleeved on the outer circumferential surface of the screw connector (14C), and the needle seat (21A) of the needle device (20A) is connected with the screw connector (211A) and the screw connector thereof (14C) The inner thread (141C) is screwed together; a protective sleeve (40), the guarantee The sleeve (40) has a set of spaces (44), and a front end of the protective sleeve (40) is provided with a plug portion (45), and the plug portion (45) is assembled to the movable U-shaped portion (32). The insertion portion (34) connects the movable U-shaped portion (32) with the protective sleeve (40): thus, the fixed U-shaped portion (31) and the movable U-shaped portion (32) when the injection medical action is completed Providing a relatively non-resistive relative bending and reversing operation by the film flexible hinge portion (33) of the slack connection length, and the V-shaped elastic body (35) itself is provided at the opening (330) The strong elastic force assists, when the two U-shaped parts are bent and turned, the protective sleeve (40) is provided with sufficient elastic strength to cooperate with each other, as long as the finger is put forward, the needle end of the needle seat (21A) (23A) ) snap into the protective cover (40). The safety needle device of claim 16, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) The film flexible hinge portion (3511) is coupled to the fixed U-shaped portion (31) for a predetermined length, and the short side (352) is coupled to the movable U-shaped portion by the thin film flexible hinge portion (3521) portion thereof ( 32) The predetermined length. The safety needle device of claim 17, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 17, wherein the long side (351) and the short side (352) of the V-shaped elastic body (35) have a preferred length ratio of 2 to 1. The safety needle device of claim 19, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. The safety needle device of claim 16, wherein a locking C-type fastener (39C) is placed in front of the kit (38C). A safety injection needle device comprising: an injection syringe (10) comprising a syringe (11) having a syringe connector (12) at its front end; a needle device (20A) including a needle holder (21A) The needle holder (21A) is sleeved on the syringe connector (12), a needle head (23A) is disposed at the front end of the needle holder (21A), and an actuation body portion (30D) includes a fixed U-shaped portion (31). a movable U-shaped portion (32), a film soft hinge portion (33), a port (330), a V-shaped elastic body (35) disposed at the opening (330), and a kit (38D). The film soft hinge portion (33) is disposed between the end portions of the two U-shaped portions and has a relatively loose connection length, so that the two U-shaped portions are integrally connected by the slack connection length; the port (330) ) is disposed between the two long ends of the two U-shaped portions; and the movable U-shaped portion (32) is provided with an upwardly extending receiving portion (34), and the fixed U-shaped portion (31) is integrally coupled to the kit ( 38D), the actuation body portion (30D) is tightly fitted to the syringe connector (12) with the kit (38D); a protective sleeve (40) having a set space ( 44) The front end of the protective cover (40) is provided with a plug portion (45). The insertion portion (45) is coupled to the insertion portion (34) of the movable U-shaped portion (32) to connect the movable U-shaped portion (32) with the protective sleeve (40); thus, when injecting After the medical behavior is completed, the fixed U-shaped portion (31) and the movable U-shaped portion (32) perform a relatively bending-free relative bending and reversing operation by the film-softened hinge portion (33) of the slack connection length, plus the pass The mouth (330) is further provided with a strong elastic force of the V-shaped elastic body (35) itself, so that when the two U-shaped portions are bent and turned, the protective sleeve (40) is provided with sufficient elasticity. The strength of the decoupling force is as long as the finger is inserted into the protective sleeve (40) of the needle end (23A) of the needle holder (21A). The safety needle device of claim 22, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) ) with its thin The film flexible hinge portion (3511) is coupled to a predetermined length of the fixed U-shaped portion (31), and the short side (352) is coupled to the movable U-shaped portion (32) by a thin film flexible hinge portion (3521) portion thereof. The predetermined length. The safety needle device of claim 23, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 23, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 25, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. A safety injection needle device comprising: an injection syringe (10) comprising a syringe (11) having a syringe connector (12) at its front end; a needle device (20A) including a needle holder (21A) The needle holder (21A) is sleeved on the syringe connector (12), a needle head (23A) is disposed at the front end of the needle holder (21A), and an actuation body portion (30E) includes a fixed U-shaped portion (31). a movable U-shaped portion (32), a film soft hinge portion (33), a port (330), a V-shaped elastic body (35) disposed at the opening (330), and a kit (38E), The film soft hinge portion (33) is disposed between the end portions of the film between the two U-shaped portions, and has a relatively loose connection length, so that the two U-shaped portions are integrally connected by a loose connection length; The mouth (330) is disposed between the two U-shaped end ends, and the movable U-shaped portion (32) is provided with an upwardly extending receiving portion (34), and the fixed U-shaped portion (31) is integrally coupled to the kit ( 38E), the front end of the kit (38E) has a larger diameter thread (381E) and two opposite screw flanges (211A) at the rear end of the needle holder (21A), and the inner circumference of the rear end has a smaller diameter. Small inner flange (382E), and the main action The body (30D) is tightly fitted on the outer peripheral surface of the syringe joint (12) with a small inner flange (382E) of the rear diameter of the sleeve (38D); a protective sleeve (40), the protective sleeve (40) having a set of spaces (44), the front end of the protective cover (40) is provided with a plug portion (45), and the plug portion (45) is coupled to the movable U-shaped portion (32) The insertion portion (34) connects the movable U-shaped portion (32) with the protective sleeve (40); thus, the fixed U-shaped portion (31) and the movable U-shaped portion (32) after the injection medical action is completed When the film soft hinge portion (33) of the slack connection length is subjected to a relatively bending-free relative bending inversion operation, the V-shaped elastic body (35) provided at the opening (330) is strong. The elastic force is assisted to provide the protective sleeve (40) with sufficient elastic strength when the two U-shaped portions are bent and turned over, as long as the finger is placed on the needle end of the needle holder (21A) (23) ) snap into the protective cover (40). The safety needle device of claim 27, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) And a thinned soft hinge portion (3511) coupled to the fixed U-shaped portion (31) for a predetermined length, the short side (352) being coupled to the movable U-shaped portion by a thin film flexible hinge portion (3521) (32) The predetermined length. The safety needle device of claim 28, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 28, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 30, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. The safety needle device of claim 27, wherein a locking circular fastener (39E) is placed in front of the rear end inner flange (382E) of the sleeve (38E). A safety injection needle device comprising: an injection syringe (10) comprising a syringe (11) having a syringe connector (12) at its front end; a needle device (20A) including a needle holder (21A) The needle holder (21A) is sleeved on the syringe connector (12), a needle head (23A) is disposed at the front end of the needle holder (21A), and an actuation body portion (30F) includes a fixed U-shaped portion (31). a movable U-shaped portion (32), a film soft hinge portion (33), a port (330), a V-shaped elastic body (35) disposed at the opening (330), and a kit (38F), The film soft hinge portion (33) is disposed between the end portions of the film between the two U-shaped portions, and has a relatively loose connection length, so that the two U-shaped portions are integrally connected by a loose connection length; The mouth (330) is disposed between the two U-shaped end portions, and an end of the movable U-shaped portion (32) is provided with an upwardly extending receiving portion (34); the fixed U-shaped portion (31) is integrally coupled to the kit ( 38F), the front end of the kit (38F) is fastened to the rear end of the needle seat (21A) of the needle device (20A), and the actuation body portion (30F) is tightly fitted with the rear end of the sleeve (38F). At the outer circumference of the syringe connector (12); a protective sleeve (40) having a set of spaces (44), the front end of the protective sleeve (40) is provided with a plug portion (45), and the plug portion (45) is assembled The insertion portion (34) of the movable U-shaped portion (32) connects the movable U-shaped portion (32) with the protective sleeve (40); thus, the fixed U-shaped portion is completed when the injection medical action is completed ( 31) and the movable U-shaped portion (32) is subjected to a relative bending-reversal operation of the film-free soft hinge portion (33) having a loose connection length, and is provided at the opening (330) The strong elastic force provided by the V-shaped elastic body (35) assists in providing the protective sleeve (40) with sufficient elastic strength and quick-fastening cooperation force when the two U-shaped portions are subjected to the bending and turning operation, as long as the finger is dialed The needle (23A) at the front end of the needle holder (21A) is snapped into the protective sleeve (40). The safety needle device of claim 33, wherein the V-shaped elastic body (35) comprises a long side (351) and a short side (352) to form an elastic plate body, the long side (351) And a thinned soft hinge portion (3511) coupled to the fixed U-shaped portion (31) for a predetermined length, the short side (352) being coupled to the movable U-shaped portion by a thin film flexible hinge portion (3521) (32) The predetermined length. The safety needle device of claim 34, wherein the long side (351) of the V-shaped elastomer (35) is at least 30% larger than the short side (352). The safety needle device of claim 34, wherein the preferred length of the long side (351) and the short side (352) of the V-shaped elastomer (35) is 2 to 1. The safety needle device of claim 36, wherein the V-shaped elastomer (35) has at least one elastic rib (353) thereon. A safety needle device according to the invention of claim 2, wherein the V-shaped elastomer (35) has at least one elastic rib (353). The safety needle device of claim 8 or 12 or 16 or 22 or 27 or 33, wherein the insertion portion (34) has a joint insertion hole (341), the protective sleeve (40) The plug portion (45) is inserted into the connector jack (341) to position the plug portion (45) to the connector jack (341), thereby causing the movable U-shaped portion (32) ) combined with the protective cover (40). The safety needle device of claim 8 or 12 or 16 or 22 or 27 or 33, wherein the protective cover (40) comprises a substrate (41) and two side plates around the substrate (41) ( 42) and a sleeve formed by the end plate (43), such that the protective sleeve (40) has a set space (44), The side plate (42) is provided with at least one guard strip (421) extending obliquely to the sleeve space (44), and the strips (421) of the side plates (42) are staggered so that the needle (23A) enters once. The sleeve space (44) can no longer be removed.