CN112604083A - Medicine syringe for fixed-depth injection - Google Patents
Medicine syringe for fixed-depth injection Download PDFInfo
- Publication number
- CN112604083A CN112604083A CN202110022717.6A CN202110022717A CN112604083A CN 112604083 A CN112604083 A CN 112604083A CN 202110022717 A CN202110022717 A CN 202110022717A CN 112604083 A CN112604083 A CN 112604083A
- Authority
- CN
- China
- Prior art keywords
- face
- steel needle
- cavity
- trigger
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/46—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for controlling depth of insertion
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a medicine injector for constant-depth injection, which comprises a needle cylinder, wherein the lower end face of the needle cylinder is communicated with a medicine liquid cavity with a downward opening, a plunger capable of sliding up and down is arranged on the inner wall surface of the medicine liquid cavity, a push rod extending out of the lower end face of the needle cylinder is fixedly arranged on the lower end face of the plunger, and a push plate is fixedly arranged on the lower end face of the push rod. Is convenient for wide popularization.
Description
Technical Field
The invention relates to the field of medicine injection, in particular to a medicine injector for fixed-depth injection.
Background
In our daily life, the injection of the medicine is frequently contacted, the injection process is generally completed by using a disposable injector during the injection of the medicine, the safety of the injection of the medicine can be ensured, a large amount of waste can be caused by using the disposable injector during the injection of the same kind of medicine, the resource can be saved by changing the needle without changing the barrel, the injection depth of a needle head of a traditional injector can not be effectively controlled, a patient can easily generate side effects to a certain degree, and the injection of the needle head at the fixed depth can not be effectively controlled.
Disclosure of Invention
In order to solve the problems, the present embodiment designs a medicine injector for constant depth injection, which comprises a needle cylinder, wherein a medicine liquid cavity with a downward opening is communicated with the lower end surface of the needle cylinder, a plunger capable of sliding up and down is arranged on the inner wall surface of the medicine liquid cavity, a push rod extending out of the lower end surface of the needle cylinder is fixedly arranged on the lower end surface of the plunger, a push plate is fixedly arranged on the lower end surface of the push rod, bilaterally symmetrical press plates are fixedly arranged on the outer circumferential surface of the lower side of the needle cylinder, a positioning machine body is fixedly arranged on the upper end surface of the needle cylinder, a working cavity with an upward opening is communicated with the upper end surface of the positioning machine body, a transfusion hole is communicated between the lower wall surface of the working cavity and the upper wall surface of the medicine liquid cavity, a lifting annular groove extending away from the center of the transfusion hole is communicated with the inner wall surface of the working cavity, and, an electromagnet is fixedly arranged in the positioning machine body at the lower side of the working cavity, the electromagnet can attract the fixed-depth pushing plate to move downwards when being electrified, an installing cavity with an upward opening is arranged on the upper end face of the fixed-depth pushing plate, a liquid inlet hole is communicated between the lower wall face of the installing cavity and the lower end face of the fixed-depth pushing plate, an upward extending positioning column is fixedly arranged on the lower wall face of the installing cavity at a position corresponding to the liquid inlet hole, a detachable steel needle positioning seat is arranged in the installing cavity, a steel needle moving cavity with a downward opening is communicated with the lower end face of the steel needle positioning seat, the steel needle moving cavity can be tightly matched with the positioning column, a steel needle moving hole is communicated between the upper wall face of the steel needle moving cavity and the upper end face of the steel needle positioning seat, a steel needle positioning plate capable of moving up and down is arranged on the inner wall face of the steel needle moving cavity, and a steel needle is fixedly arranged in, the lower end of the steel needle extends out of the lower end face of the steel needle positioning plate, the upper end of the steel needle can penetrate through the steel needle moving hole and extend out of the upper end face of the steel needle positioning seat, a reset spring sleeved on the outer side of the steel needle is fixedly arranged between the upper end face of the steel needle positioning plate and the upper wall face of the steel needle moving cavity, left and right sides of the steel needle are fixedly provided with left and right symmetrical baffle plate thimbles, the upper wall face of the steel needle moving cavity at the position corresponding to the baffle plate thimbles is communicated with an upwards extending baffle channel, left and right symmetrical destroying channels are communicated with the inner wall face of the lower end of the steel needle moving hole, and the destroying channels are communicated with the baffle channels at the same side.
Preferably, a fixed-depth spring is fixedly arranged between the lower end face of the fixed-depth pushing plate and the lower wall face of the lifting annular groove, an infusion hose capable of deforming is fixedly arranged between the lower end face of the fixed-depth pushing plate and the lower wall face of the working cavity at a position corresponding to the upper end of the infusion hole, and the upper end of the steel needle can extend out of the upper end face of the positioning machine body when the fixed-depth pushing plate is located at the upper limit position.
But preferably, keep away from lift ring channel upper end centre of a circle one side be equipped with annular locking spacing chamber in the location organism, the spacing chamber downside internal face of locking with the intercommunication is equipped with the through-hole between the internal face of lift ring channel upper end, it is located to decide when degree of depth push plate is in the upper limit position the through-hole upside, the fixed annular that is equipped with of the spacing chamber lower wall of locking leads the slider, it is equipped with bilateral symmetry's guide chute to lead slider up end intercommunication, the inside spacing slide bar that leads that can the horizontal slip that is equipped with of guide chute, spacing slide bar that leads can pass the through-hole extends to in the lift ring channel, spacing slide bar that leads keeps away from lift ring channel centre of a circle one end can extend lead the slider and keep away.
Preferably, an annular gear ring rotating sleeve is fixedly arranged on one side, away from the axis of the guide sliding block, of the lower wall surface of the locking limiting cavity, an annular gear ring is rotatably arranged on the upper end surface of the gear ring rotating sleeve, an annular limiting baffle is fixedly arranged on the inner circular surface of the gear ring, an upward extending shifting rod is fixedly arranged on the upper end surface of one side, away from the circle center of the lifting ring groove, of the limiting guide sliding rod, a limiting guide sliding through hole is communicated between the upper end surface and the lower end surface of the limiting baffle at a position corresponding to the shifting rod, and the upper end of the shifting rod can penetrate through the limiting guide sliding through hole at a corresponding position and extend out of the.
Preferably, the inner wall surface of the left side of the locking limiting cavity is communicated with a transmission gear cavity extending leftwards, a rack storage cavity is arranged in the needle cylinder at a position corresponding to the transmission gear cavity, a transmission shaft extending to the inside of the rack storage cavity is rotatably arranged on the lower wall surface of the transmission gear cavity, a rotating gear meshed with the outer circular surface of the gear ring is fixedly arranged at the upper end of the transmission shaft, and a transmission gear is fixedly arranged at the lower end of the transmission shaft.
Preferably, the rack is deposited chamber back wall intercommunication and is equipped with the rack that extends backward and leads the spout, the meshing of the outer disc rear side of drive gear is equipped with the rack that can remove about, the fixed rack that is equipped with bilateral symmetry of rack rear end face leads the slide bar, rack guide slide bar rear end can extend to in the rack guide spout and can remove about, the fixed rack left end that is equipped with extends the rack catch bar of the outer disc of cylinder, the fixed circular rack catch bar that is equipped with in rack catch bar left end, rack catch bar right-hand member face with it overlaps to fix being equipped with between the outer disc of cylinder the rack reset spring in the rack catch bar outside, the outer disc of rack catch bar with fixed being equipped with the protection rubber that can take place deformation between the cylinder.
Preferably, a trigger switch is fixedly arranged in the needle cylinder on the right side of the rack storage cavity, an electromagnetic trigger rod capable of sliding left and right is arranged on the right wall surface of the rack storage cavity at a position corresponding to the trigger switch, an electromagnetic trigger plate is fixedly arranged at the left end of the electromagnetic trigger rod, an electromagnetic trigger spring sleeved outside the electromagnetic trigger rod is fixedly arranged between the right end surface of the electromagnetic trigger plate and the right wall surface of the rack storage cavity, the rack can push the electromagnetic trigger plate to compress the electromagnetic trigger spring and drive the electromagnetic trigger spring to trigger the trigger switch when moving to the right limit, a trigger block storage cavity extending downwards is communicated with the lower wall surface of the rack storage cavity at a position corresponding to the electromagnetic trigger rod, a secondary trigger block capable of sliding up and down is arranged inside the trigger block storage cavity, and a secondary trigger spring is fixedly arranged between the lower end surface of the secondary trigger block storage cavity and the lower wall surface of the trigger block storage cavity, the left side press the inside secondary that is equipped with of clamp plate and trigger the chamber, the secondary triggers intracavity wall face and is equipped with the secondary that can reciprocate and triggers the board, the fixed secondary trigger bar that extends of secondary trigger bar up end according to the clamp plate up end that is equipped with of secondary trigger bar up end, the fixed secondary that is equipped with of secondary trigger bar up end presses the clamp plate, secondary trigger plate lower extreme with the secondary triggers under the chamber under the fixed secondary trigger spring that is equipped with between the wall, secondary trigger bar lower extreme with fixedly connected with stay cord between the terminal surface under the secondary trigger piece, trigger switch triggers once after opening, closes after triggering the second.
Preferably, a movable disposable blocking plate is placed inside the blocking channel, a self-destruction block capable of bouncing by the steel needle is arranged inside the destroying channel, the self-destruction block is far away from one side end face and the same side of the axis of the steel needle, the destroying channel is far away from a side wall face of the axis of the steel needle, a self-destruction spring is fixedly arranged between the side wall faces of the axis of the steel needle, the initial position of the disposable blocking plate is located at the position where the blocking channel is communicated with the destroying channel, and the disposable blocking plate can prevent the self-destruction block from moving towards one side of the axis of the steel needle.
The invention has the beneficial effects that: the device can realize the fixed-depth injection of the needle head, effectively standardizes the depth of the needle head penetrating into the muscle, further avoids the side effect of the patient with variable degree caused by the over-deep penetration of the needle head, can spontaneously destroy the injected needle head, avoids the secondary recycling of the needle head, effectively solves the symptoms of cross infection and the like caused by medicines and blood, effectively ensures the safety of the medicine injection of the patient, is suitable for the operation standard of medical staff, and is convenient for wide popularization.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1;
FIG. 3 is a schematic diagram of B-B of FIG. 2;
FIG. 4 is an enlarged schematic view of C in FIG. 1;
FIG. 5 is an enlarged schematic view of D of FIG. 1;
FIG. 6 is a schematic diagram of the structure of E-E in FIG. 4;
fig. 7 is an enlarged schematic view of F in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a medicine injector for depth-fixed injection, which comprises a needle cylinder 11, wherein a liquid medicine cavity 12 with a downward opening is communicated with the lower end surface of the needle cylinder 11, a plunger 13 capable of sliding up and down is arranged on the inner wall surface of the liquid medicine cavity 12, a push rod 14 extending out of the lower end surface of the needle cylinder 11 is fixedly arranged on the lower end surface of the plunger 13, a push plate 15 is fixedly arranged on the lower end surface of the push rod 14, a left-right symmetrical press plate 16 is fixedly arranged on the outer circumferential surface of the lower side of the needle cylinder 11, a positioning machine body 26 is fixedly arranged on the upper end surface of the needle cylinder 11, a working cavity 27 with an upward opening is communicated with the upper end surface of the positioning machine body 26, a transfusion hole 31 is communicated between the lower wall surface of the working cavity 27 and the upper wall surface of the liquid medicine cavity 12, a lifting annular groove 28 extending to one side far away from the circle center of the transfusion hole 31 is, an electromagnet 29 is fixedly arranged in the positioning machine body 26 on the lower side of the working cavity 27, the electromagnet 29 can attract the fixed-depth pushing plate 30 to move downwards when being electrified, the upper end face of the fixed-depth pushing plate 30 is provided with a placement cavity 33 with an upward opening, a liquid inlet hole 32 is communicated between the lower wall face of the placement cavity 33 and the lower end face of the fixed-depth pushing plate 30, a positioning column 36 extending upwards is fixedly arranged on the lower wall face of the placement cavity 33 at a position corresponding to the liquid inlet hole 32, a detachable steel needle positioning seat 37 is arranged in the placement cavity 33, a steel needle moving cavity 38 with a downward opening is communicated with the lower end face of the steel needle positioning seat 37, the steel needle moving cavity 38 and the positioning column 36 can be tightly matched, a steel needle moving hole 41 is communicated between the upper wall face of the steel needle moving cavity 38 and the upper end face of the steel needle positioning seat 37, and a steel needle positioning plate 39 capable of moving up and down is arranged on, a steel needle 40 is fixedly arranged in the steel needle positioning plate 39 corresponding to the steel needle moving hole 41, the lower end of the steel needle 40 extends out of the lower end face of the steel needle positioning plate 39, the upper end of the steel needle 40 can penetrate through the steel needle moving hole 41 and extend out of the upper end face of the steel needle positioning seat 37, a return spring 46 sleeved outside the steel needle 40 is fixedly arranged between the upper end surface of the steel needle positioning plate 39 and the upper wall surface of the steel needle moving cavity 38, the upper end faces of the steel needle positioning plates 39 at the left side and the right side of the steel needle 40 are fixedly provided with baffle plate thimbles 45 which are symmetrical left and right, an upward extending blocking passage 43 is communicated with the upper wall surface of the steel needle moving cavity 38 at the position corresponding to the blocking plate thimble 45, the inner wall surface of the lower end of the steel needle moving hole 41 is communicated with destruction channels 42 which are symmetrical left and right, and the destruction channels 42 are communicated with the blocking channels 43 on the same side.
Beneficially, a fixed-depth spring 35 is fixedly arranged between the lower end face of the fixed-depth pushing plate 30 and the lower end face of the lifting annular groove 28, a deformable infusion hose 34 is fixedly arranged between the lower end face of the fixed-depth pushing plate 30 at the position corresponding to the upper end of the infusion hole 31 and the lower wall face of the working cavity 27 at the position corresponding to the liquid inlet hole 32, and when the fixed-depth pushing plate 30 is at the upper limit position, the upper end of the steel needle 40 can extend out of the upper end face of the positioning machine body 26.
Beneficially, an annular locking limiting cavity 25 is arranged in the positioning machine body 26 far away from one side of the circle center of the upper end of the lifting annular groove 28, a through hole 67 is communicated between the inner wall surface of the lower side of the locking limiting cavity 25 and the inner wall surface of the upper end of the lifting annular groove 28, the fixed-depth pushing plate 30 is located on the upper side of the through hole 67 when located at the upper limit position, an annular guide sliding block 66 is fixedly arranged on the lower wall surface of the locking limiting cavity 25, a bilaterally symmetrical guide sliding groove 68 is communicated with the upper end surface of the guide sliding block 66, a limiting guide sliding rod 69 capable of sliding left and right is arranged inside the guide sliding groove 68, the limiting guide sliding rod 69 can penetrate through the through hole 67 and extend into the lifting annular groove 28, and one end, far away from the circle center of the lifting annular groove.
Advantageously, an annular gear ring rotating sleeve 70 is fixedly arranged on one side of the lower wall surface of the locking limiting cavity 25, which is far away from the axis of the guide sliding block 66, an annular gear ring 71 is rotatably arranged on the upper end surface of the gear ring rotating sleeve 70, an annular limiting baffle 72 is fixedly arranged on the inner circular surface of the gear ring 71, an upward extending shift lever 74 is fixedly arranged on the upper end surface of one side of the limiting guide sliding rod 69, which is far away from the center of the lifting annular groove 28, a limiting guide sliding through hole 73 is communicated between the upper end surface and the lower end surface of the limiting baffle 72, which is at a position corresponding to the shift lever 74, and the upper end of the shift lever 74 can pass through the limiting guide sliding through hole 73 at the.
Beneficially, the inner wall surface of the left side of the locking limiting cavity 25 is provided with a transmission gear cavity 24 extending leftwards, a rack storage cavity 23 is arranged in the needle cylinder 11 at a position corresponding to the transmission gear cavity 24, a transmission shaft 49 extending into the rack storage cavity 23 is rotatably arranged on the lower wall surface of the transmission gear cavity 24, the upper end of the transmission shaft 49 is fixedly provided with a rotating gear 65 engaged with the outer circular surface of the gear ring 71, and the lower end of the transmission shaft 49 is fixedly provided with a transmission gear 50.
Beneficially, a rack guide chute 51 extending backwards is communicated with the rear wall surface of the rack storage cavity 23, a rack 53 capable of moving left and right is engaged with the rear side of the outer circular surface of the transmission gear 50, rack guide slide rods 52 symmetrical left and right are fixedly arranged on the rear end surface of the rack 53, the rear end of each rack guide slide rod 52 can extend into the rack guide chute 51 and can move left and right, a rack push rod 54 extending out of the outer circular surface of the needle cylinder 11 is fixedly arranged at the left end of the rack 53, a circular rack push plate 55 is fixedly arranged at the left end of the rack push rod 54, a rack return spring 56 sleeved on the outer side of the rack push rod 54 is fixedly arranged between the right end surface of the rack push plate 55 and the outer circular surface of the needle cylinder 11, and a protective rubber 57 capable of deforming is fixedly arranged between the outer circular surface of.
Beneficially, a trigger switch 61 is fixedly arranged in the needle cylinder 11 on the right side of the rack storage cavity 23, an electromagnetic trigger rod 63 capable of sliding left and right is arranged on the right wall surface of the rack storage cavity 23 corresponding to the trigger switch 61, an electromagnetic trigger plate 62 is fixedly arranged at the left end of the electromagnetic trigger rod 63, an electromagnetic trigger spring 64 sleeved on the outer side of the electromagnetic trigger rod 63 is fixedly arranged between the right end surface of the electromagnetic trigger plate 62 and the right wall surface of the rack storage cavity 23, when the rack 53 moves to the right limit, the electromagnetic trigger plate 62 can be pushed to compress the electromagnetic trigger spring 64 and drive the electromagnetic trigger spring 64 to trigger the trigger switch 61, a trigger block storage cavity 58 extending downwards is communicated with the lower wall surface of the rack storage cavity 23 corresponding to the electromagnetic trigger rod 63, and a secondary trigger block 59 capable of sliding up and down is arranged in the trigger block storage cavity 58, the secondary trigger block 59 lower end face with the trigger block deposits and is equipped with secondary trigger spring 60 between the chamber 58 lower wall face fixedly, the left side press the inside secondary of 16 and trigger the chamber 17, secondary trigger chamber 17 internal face is equipped with the secondary that can reciprocate and triggers board 18, secondary trigger board 18 up end is fixed to be equipped with and extends secondary trigger bar 19 of press the up end of 16, secondary trigger bar 19 up end is fixed to be equipped with secondary press plate 20, secondary trigger board 18 lower end face with secondary triggers and is equipped with secondary trigger spring 21 between the chamber 17 lower wall face fixedly, secondary trigger board 18 lower end face with fixedly connected with stay cord 22 between the secondary trigger block 59 lower end face, trigger switch 61 triggers once after opening, closes after triggering for the second time.
Beneficially, a movable disposable blocking plate 44 is placed inside the blocking channel 43, a self-destruction block 47 capable of bouncing towards the steel needle 40 is arranged inside the destruction channel 42, a self-destruction spring 48 is fixedly arranged between an end face of one side of the self-destruction block 47, which is far away from the axis of the steel needle 40, and a wall face of one side of the destruction channel 42, which is far away from the axis of the steel needle 40, on the same side, an initial position of the disposable blocking plate 44 is at a position where the blocking channel 43 and the destruction channel 42 are mutually communicated, and the disposable blocking plate 44 can prevent the self-destruction block 47 from moving towards one side close to the axis of the steel needle 40.
The following detailed description of the steps of using a depth injection medicine injector in this document is provided with reference to fig. 1 to 7:
in the initial state, the secondary trigger plate 18 is at the upper limit position, the fixed-depth push plate 30 is at the upper limit position, the rack 53 and the rack push plate 55 are at the left limit position, the rack 53 is disconnected from the electromagnetic trigger plate 62, the secondary trigger block 59 is at the lower limit position, the secondary trigger spring 60 is in the compression state, the deflector rod 74 and the limiting guide slide rod 69 are at the side far away from the circle center of the lifting annular groove 28, and the steel needle positioning seat 37 is in the non-placement state: the steel needle positioning plate 39 is at the lower limit position, the blocking plate thimble 45 does not extend into the blocking passage 43, the disposable blocking plate 44 is positioned at the communication outlet of the blocking passage 43 and the destroying passage 42, the self-destruction block 47 is positioned at one side far away from the axis of the steel needle 40, the self-destruction spring 48 is in a compressed state, and the return spring 46 is in a free state.
During operation, the installation process is as follows: the steel needle moving cavity 38 and the positioning column 36 correspond to each other and press the steel needle positioning seat 37 to move downwards, at the moment, the positioning column 36 pushes the steel needle positioning plate 39 to compress the return spring 46 and drive the steel needle 40 to push upwards, at the moment, the baffle plate thimble 45 extends into the baffle channel 43 and pushes the disposable baffle plate 44 to move upwards, at the moment, the end surface of one side of the baffle plate thimble 45, far away from the steel needle 40, is in contact with the self-destruction block 47 and prevents the self-destruction block 47 from moving towards one side close to the axis of the steel needle 40; the process of extracting the liquid medicine: holding the syringe 11 with one hand and pressing the rack push plate 55, at this time, the rack push plate 55 compresses the rack return spring 56 and pushes the rack 53 to move rightwards through the rack push rod 54, further driving the meshed transmission gear 50 to rotate, further driving the transmission shaft 49 to rotate, further driving the rotation gear 65 to rotate, further driving the meshed toothed ring 71 to rotate around the axis of the toothed ring rotating sleeve 70, further driving the limit baffle 72 to rotate for a certain angle, further driving the shift lever 74 to move towards one side close to the lifting annular groove 28 under the action of the limit slide guiding through hole 73, further driving the limit slide guiding rod 69 to slide in the sliding groove 68 and extend into the lifting annular groove 28, further completing the locking of the limit slide guiding rod 69 to the lower end of the fixed-depth push plate 30, at this time, by pushing the push plate 15, further driving the plunger 13 to move downwards, further drawing the liquid medicine downwards through the, when the rack 53 moves rightwards, the electromagnetic trigger plate 62 and the electromagnetic trigger rod 63 are pushed to compress the electromagnetic trigger spring 64 to move rightwards, so that the trigger switch 61 is pressed, the electromagnet 29 is electrified, a magnetic force is generated, the fixed-depth push plate 30 is attracted to have the tendency that the compressed fixed-depth spring 35 moves downwards, after the liquid medicine is extracted, the pressing on the rack push plate 55 is released, the rack push plate 55 moves leftwards to reset under the elastic force of the rack reset spring 56, the rack 53 is driven to slide leftwards by the rack push rod 54, the transmission gear 50 is driven to rotate reversely, the transmission shaft 49 drives the rotating gear 65 to rotate reversely, the gear ring 71 is driven to rotate reversely, the limit baffle plate 72 and the limit slide through hole 73 drive the shift lever 74 to move towards the side far away from the lifting annular groove 28, and the limit slide rod 69 is driven to move towards the side far away from the lifting annular groove 28 and reset, the limit guide slide rod 69 releases the locking of the fixed-depth pushing plate 30, so that the fixed-depth pushing plate 30 compresses the fixed-depth spring 35 to move downwards under the magnetic force of the electromagnet 29, and the steel needle 40 is driven to be integrally positioned in the working cavity 27; and (3) injection process: the skin at the injection position is abutted against the upper end face of the positioning machine body 26, taking a right hand as an example, the index finger and the middle finger clamp the needle cylinder 11, the index finger is placed on the upper end face of the right pressing plate 16, the middle finger is placed on the upper side of the secondary pressing plate 20, the ring finger is placed on the lower end face of the left pressing plate 16, the thumb is placed on the lower end face of the pushing plate 15, by pressing the secondary pressing plate 20, the secondary trigger plate 18 is pushed by the secondary trigger rod 19 to compress the secondary trigger spring 21 to move downwards, the stretching limit on the secondary trigger block 59 is released by the pull rope 22, the secondary trigger block 59 moves upwards under the elastic force of the secondary trigger spring 60 and extrudes the electromagnetic trigger plate 62 and the electromagnetic trigger rod 63 to compress the electromagnetic trigger spring 64, so as to realize the secondary trigger of the trigger switch 61, the electrification of the electromagnet 29 is disconnected, and at the fixed-depth pushing plate, the upper end of the steel needle 40 extends out of the upper end face of the positioning machine body 26 and is inserted into muscles, the pushing plate 15 is pushed, the pushing rod 14 pushes the plunger 13 to move upwards, liquid medicine is injected into the body, and the needle head is taken out after injection is completed; disassembling and self-destroying process: the close fit between the steel needle moving cavity 38 and the positioning column 36 is released, the steel needle positioning plate 39 and the steel needle 40 move downwards under the elastic force of the reset spring 46, the blocking plate thimble 45 is driven to extend out of the blocking channel 43, the limitation of the self-destruction block 47 is released at the moment, the disposable blocking plate 44 is positioned on the upper side of the blocking channel 43 and cannot reset spontaneously, the self-destruction block 47 moves towards one side close to the steel needle 40 at a high speed under the elastic force of the self-destruction spring 48, the extrusion deformation of the steel needle 40 is realized through the self-destruction block 47, and the destruction of the steel needle 40 is completed.
The invention has the beneficial effects that: the device can realize the fixed-depth injection of the needle head, effectively standardizes the depth of the needle head penetrating into the muscle, further avoids the side effect of the patient with variable degree caused by the over-deep penetration of the needle head, can spontaneously destroy the injected needle head, avoids the secondary recycling of the needle head, effectively solves the symptoms of cross infection and the like caused by medicines and blood, effectively ensures the safety of the medicine injection of the patient, is suitable for the operation standard of medical staff, and is convenient for wide popularization.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A medicine injector for depth-fixed injection comprises a needle cylinder and is characterized in that: the lower end face of the needle cylinder is communicated with a liquid medicine cavity with a downward opening, a plunger capable of sliding up and down is arranged on the inner wall face of the liquid medicine cavity, a push rod extending out of the lower end face of the needle cylinder is fixedly arranged on the lower end face of the plunger, a push plate is fixedly arranged on the lower end face of the push rod, bilaterally symmetrical press plates are fixedly arranged on the outer circular face of the lower side of the needle cylinder, a positioning machine body is fixedly arranged on the upper end face of the needle cylinder, a working cavity with an upward opening is communicated with the upper end face of the positioning machine body, a transfusion hole is communicated between the lower wall face of the working cavity and the upper wall face of the liquid medicine cavity, a lifting annular groove extending to one side away from the circle center of the transfusion hole is communicated with the inner wall face of the working cavity, a fixed-depth push plate capable of moving up and down is arranged in, the upper end face of the fixed-depth push plate is provided with an installing cavity with an upward opening, a liquid inlet hole is communicated between the lower wall face of the installing cavity and the lower end face of the fixed-depth push plate, a positioning column extending upwards is fixedly arranged on the lower wall face of the installing cavity at a position corresponding to the liquid inlet hole, a detachable steel needle positioning seat is arranged in the installing cavity, a steel needle moving cavity with a downward opening is communicated with the lower end face of the steel needle positioning seat, the steel needle moving cavity can be tightly matched with the positioning column, a steel needle moving hole is communicated between the upper wall face of the steel needle moving cavity and the upper end face of the steel needle positioning seat, a steel needle positioning plate capable of moving up and down is arranged on the inner wall face of the steel needle moving cavity, a steel needle is fixedly arranged in the steel needle positioning plate at a position corresponding to the steel needle moving hole, the lower end of the steel needle extends out of the lower end face of the steel needle positioning plate, and the upper end of the steel needle, the utility model discloses a steel needle removal cavity, including steel needle removal hole, steel needle locating plate, baffle board thimble, the baffle board thimble that is equipped with bilateral symmetry, the steel needle removes the cavity upper wall intercommunication and is equipped with the separation passageway that upwards extends, steel needle removes the hole lower extreme internal face intercommunication and is equipped with bilateral symmetry's destruction passageway, destroy passageway and homonymy the separation passageway communicates each other.
2. A depth-setting injection pharmaceutical syringe as defined in claim 1, wherein: the fixed-depth spring is fixedly arranged between the lower end face of the fixed-depth pushing plate and the lower wall face of the lifting annular groove, the infusion hose capable of deforming is fixedly arranged between the lower end face of the fixed-depth pushing plate and the lower wall face of the working cavity at the position corresponding to the liquid inlet hole at the position corresponding to the upper end of the infusion hole, and the upper end of the steel needle can extend out of the upper end face of the positioning machine body when the fixed-depth pushing plate is located at the upper limit position.
3. A depth-setting injection pharmaceutical syringe as defined in claim 1, wherein: keep away from lift ring channel upper end centre of a circle one side be equipped with annular locking spacing chamber in the location organism, the spacing chamber downside internal face of locking with the intercommunication is equipped with the through-hole between the internal face of lift ring channel upper end, be located when deciding degree of depth push plate is in last extreme position the through-hole upside, the fixed annular that is equipped with of the spacing chamber lower wall of locking leads the slider, it is equipped with bilateral symmetry's the spout of leading to lead slider up end intercommunication, it can the horizontal slip spacing slide bar of leading to lead the inside spacing slide bar that is equipped with of spout, spacing slide bar of leading can pass the through-hole extends to in the lift ring channel, spacing slide bar of leading is kept away from lift ring channel centre of a circle one end can extend lead.
4. A depth-setting injection pharmaceutical syringe as defined in claim 2, wherein: an annular gear ring rotating sleeve is fixedly arranged on one side, away from the axis of the guide sliding block, of the lower wall face of the locking limiting cavity, an annular gear ring is rotatably arranged on the upper end face of the gear ring rotating sleeve, an annular limiting baffle is fixedly arranged on the inner circular face of the gear ring, an upward extending shifting rod is fixedly arranged on the upper end face of one side, away from the circle center of the lifting circular groove, of the limiting guide sliding rod, a limiting guide sliding through hole is communicated and arranged between the upper end face and the lower end face of the limiting baffle at a position corresponding to the shifting rod, and the upper end of the shifting rod can penetrate through the limiting guide sliding through hole at the corresponding position and.
5. A depth-setting injection pharmaceutical syringe as defined in claim 2, wherein: the inner wall surface of the left side of the locking limiting cavity is communicated with a transmission gear cavity extending leftwards, a rack storage cavity is arranged in the needle cylinder at a position corresponding to the transmission gear cavity, a transmission shaft extending to the rack storage cavity is arranged on the lower wall surface of the transmission gear cavity in a rotating mode, a rotating gear meshed with the outer circular surface of the gear ring is fixedly arranged at the upper end of the transmission shaft, and a transmission gear is fixedly arranged at the lower end of the transmission shaft.
6. A depth-setting injection pharmaceutical syringe as defined in claim 5, wherein: the rack is deposited chamber back wall intercommunication and is equipped with the rack that extends backward and leads the spout, the meshing of the outer disc rear side of drive gear is equipped with the rack that can remove about, the fixed rack that is equipped with bilateral symmetry of rack rear end face leads the slide bar, rack guide slide bar rear end can extend to in the rack guide spout and can remove about, the rack left end is fixed to be equipped with and extends the rack catch bar of the outer disc of cylinder, the fixed circular rack catch bar that is equipped with in rack catch bar left end, rack catch bar right-hand member face with it overlaps to be fixed to be equipped with between the outer disc of cylinder the rack reset spring in the rack catch bar outside, the outer disc of rack catch bar with fixed being equipped with between the cylinder can take place the protective rubber of deformation.
7. A depth-setting injection pharmaceutical syringe as defined in claim 5, wherein: a trigger switch is fixedly arranged in the needle cylinder on the right side of the rack storage cavity, an electromagnetic trigger rod capable of sliding left and right is arranged on the right wall surface of the rack storage cavity at a position corresponding to the trigger switch, an electromagnetic trigger plate is fixedly arranged at the left end of the electromagnetic trigger rod, an electromagnetic trigger spring sleeved outside the electromagnetic trigger rod is fixedly arranged between the right end surface of the electromagnetic trigger plate and the right wall surface of the rack storage cavity, the rack can push the electromagnetic trigger plate to compress the electromagnetic trigger spring and drive the electromagnetic trigger spring to trigger the trigger switch when moving to the right limit, a trigger block storage cavity extending downwards is communicated with the lower wall surface of the rack storage cavity at a position corresponding to the electromagnetic trigger rod, a secondary trigger block capable of sliding up and down is arranged inside the trigger block storage cavity, and a secondary trigger spring is fixedly arranged between the lower end surface of the secondary trigger block and the lower wall surface of the trigger block storage cavity, the left side press the inside secondary that is equipped with of clamp plate and trigger the chamber, the secondary triggers intracavity wall face and is equipped with the secondary that can reciprocate and triggers the board, the fixed secondary trigger bar that extends of secondary trigger bar up end according to the clamp plate up end that is equipped with of secondary trigger bar up end, the fixed secondary that is equipped with of secondary trigger bar up end presses the clamp plate, secondary trigger plate lower extreme with the secondary triggers under the chamber under the fixed secondary trigger spring that is equipped with between the wall, secondary trigger bar lower extreme with fixedly connected with stay cord between the terminal surface under the secondary trigger piece, trigger switch triggers once after opening, closes after triggering the second.
8. A depth-setting injection pharmaceutical syringe as defined in claim 1, wherein: the disposable separation plate capable of moving is placed inside the separation channel, a self-destruction block capable of bouncing by the steel needle is arranged inside the destruction channel, the self-destruction block is far away from one side end face and the same side of the axis of the steel needle, the destruction channel is far away from a side wall face of the axis of the steel needle, a self-destruction spring is fixedly arranged between the side wall faces of the axis of the steel needle, the initial position of the disposable separation plate is located at the position where the separation channel and the destruction channel are communicated with each other, and the disposable separation plate can prevent the self-destruction block from moving towards one side of the axis of the steel needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022717.6A CN112604083A (en) | 2021-01-08 | 2021-01-08 | Medicine syringe for fixed-depth injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022717.6A CN112604083A (en) | 2021-01-08 | 2021-01-08 | Medicine syringe for fixed-depth injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112604083A true CN112604083A (en) | 2021-04-06 |
Family
ID=75253518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110022717.6A Withdrawn CN112604083A (en) | 2021-01-08 | 2021-01-08 | Medicine syringe for fixed-depth injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112604083A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274587A (en) * | 2021-06-25 | 2021-08-20 | 南通市第一人民医院 | Multi-functional insulin pen of type is reminded to pronunciation |
| CN114225202A (en) * | 2021-12-22 | 2022-03-25 | 绍兴上虞力姿生物科技有限公司 | Female gel syringe for resisting cervical cancer |
| CN114470403A (en) * | 2021-12-31 | 2022-05-13 | 深圳瑞宇医疗科技有限公司 | Intelligent injection device capable of being pasted on skin and automatically injecting insulin |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB143084A (en) * | 1918-03-15 | 1920-05-20 | Edmondo Luswergh | Improvements in and relating to self-acting syringes for hypodermic injections |
| US5620421A (en) * | 1993-12-09 | 1997-04-15 | Schmitz; William L. | Syringe injector system |
| US6206857B1 (en) * | 2000-08-22 | 2001-03-27 | Marina Ling-Ko Chen | Syringe with needle retraction arrangement |
| US20130261558A1 (en) * | 2010-12-21 | 2013-10-03 | Sanofi-Aventis Deutschland Gmbh | Auto-injector |
| CN109498909A (en) * | 2018-12-30 | 2019-03-22 | 张炳泰 | The adjustable syringe of disposable medical cosmetology depth |
| JP6617364B1 (en) * | 2019-05-08 | 2019-12-11 | 广州市双聚節能科技有限公司 | Medical injection equipment for stock raising |
| CN211461592U (en) * | 2019-10-29 | 2020-09-11 | 山东科锐医疗用品有限公司 | Safety self-destruction syringe |
-
2021
- 2021-01-08 CN CN202110022717.6A patent/CN112604083A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB143084A (en) * | 1918-03-15 | 1920-05-20 | Edmondo Luswergh | Improvements in and relating to self-acting syringes for hypodermic injections |
| US5620421A (en) * | 1993-12-09 | 1997-04-15 | Schmitz; William L. | Syringe injector system |
| US6206857B1 (en) * | 2000-08-22 | 2001-03-27 | Marina Ling-Ko Chen | Syringe with needle retraction arrangement |
| US20130261558A1 (en) * | 2010-12-21 | 2013-10-03 | Sanofi-Aventis Deutschland Gmbh | Auto-injector |
| CN109498909A (en) * | 2018-12-30 | 2019-03-22 | 张炳泰 | The adjustable syringe of disposable medical cosmetology depth |
| JP6617364B1 (en) * | 2019-05-08 | 2019-12-11 | 广州市双聚節能科技有限公司 | Medical injection equipment for stock raising |
| CN211461592U (en) * | 2019-10-29 | 2020-09-11 | 山东科锐医疗用品有限公司 | Safety self-destruction syringe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274587A (en) * | 2021-06-25 | 2021-08-20 | 南通市第一人民医院 | Multi-functional insulin pen of type is reminded to pronunciation |
| CN114225202A (en) * | 2021-12-22 | 2022-03-25 | 绍兴上虞力姿生物科技有限公司 | Female gel syringe for resisting cervical cancer |
| CN114470403A (en) * | 2021-12-31 | 2022-05-13 | 深圳瑞宇医疗科技有限公司 | Intelligent injection device capable of being pasted on skin and automatically injecting insulin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112604083A (en) | Medicine syringe for fixed-depth injection | |
| US4592742A (en) | Pressure hypodermic syringe | |
| US20080114305A1 (en) | Botox® Injector | |
| CN105212971B (en) | Thyroid needle injects suction device | |
| US5634909A (en) | Auto-retracting needle injector system | |
| CN106512149B (en) | Pneumatic needleless injector | |
| CN1291763C (en) | Syringe and metod for use thereof | |
| CN101954133B (en) | Safe intravenous infusion needle | |
| CN205144615U (en) | Thyroid gland puncture injection suction device | |
| CN213252073U (en) | Safety syringe | |
| CN209751837U (en) | Electrically driven needleless injector | |
| CN219517418U (en) | Needleless injector | |
| CN113171518B (en) | Child-assisted automatic hypodermic syringe | |
| CN216676610U (en) | Dedicated syringe device of poultry animal doctor | |
| CN201603194U (en) | Safety intravenous infusion needle | |
| WO2004062713A1 (en) | Injection auxiliary tool | |
| CN213491142U (en) | Insulin pump for diabetic | |
| CN213432314U (en) | Poultry animal doctor is with abandonment syringe needle separation collection device | |
| CN2363722Y (en) | Infusion pump controlled by patient using it | |
| CN211272381U (en) | Medicine pumping and injecting device | |
| CN218129451U (en) | Prevent syringe that extension pipe drops | |
| CN213526421U (en) | Anti-acupuncture safe dispensing device | |
| CN220237478U (en) | Insulin syringe needle recovery unit for injection of preventing needle puncture | |
| CN215308854U (en) | Detachable syringe strong negative pressure limiting device | |
| CN219042813U (en) | Continuous injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210406 |
|
| WW01 | Invention patent application withdrawn after publication |