KR101939136B1 - Safety needle assembly for laparoscopic surgery - Google Patents

Abstract

The present invention provides a safety needle assembly for a laparoscopic surgery, capable of injection or suction during a laparoscopic surgery. According to an embodiment of the present invention, the safety needle assembly for a laparoscopic surgery is safe and convenient to use. The safety needle assembly for a laparoscopic surgery includes a handle unit, a connection unit, a needle, a needle cover, a control unit, and an elastic member. The handle unit includes: an accommodation groove penetrated at the center in an axial direction; a first rail groove and a second rail groove individually formed on the upper side and the lower side of the accommodation groove in the axial direction; and an opening unit connected to the first rail groove and connected to the outer side. The connection unit is connected to a rear end of the handle unit and has a connection groove to which a first needle hole and medical instruments are connected. The needle is inserted into the first needle hole and is extended to the outside of the front of the handle unit by passing through the accommodation groove. One part of the needle cover is accommodated in the inner side of the accommodation groove, and the rest part is extended to the outside of the front of the handle unit. The rest part also has a second needle groove for the needle to be inserted into the center. The control unit is connected to the needle cover on the inner side of the handle unit and enables a front end of the needle to be selectively exposed by controlling the length in which the needle cover is exposed to the outside of the handle unit while reciprocating along the first and second rail grooves. The elastic member is installed in the accommodation groove and elastically supports the needle cover forward.

Description

[0001] SAFETY NEEDLE ASSEMBLY FOR LAPAROSCOPIC SURGERY [0002]

The present invention relates to a safety saline assembly for laparoscopic surgery, and more particularly, to a safety saline assembly for laparoscopic surgery which is safe and convenient to use and which can be injected or aspirated during laparoscopic surgery.

In general, during laparoscopic surgery, the drug is injected into organs inside the abdominal cavity, and specially designed injectors and syringes are used.

However, since the conventional needle applicator does not have a needle cover and the needle is always exposed, there is a problem that the medical staff may be stuck to the needle during use.

Further, when the injection device is inserted into the abdominal cavity, there is a problem that the tip of the needle may damage other surgical instruments such as the silicone film of the trocar attached to the patient.

On the other hand, during laparoscopic surgery, there is a case where aspirate of multiple liquids or cysts in the abdominal cavity is performed. In this case, a syringe or a suction is generally connected to the suction needle. In this case as well, the needle is always exposed because there is no needle cover, which causes the above-described problems.

Accordingly, there is a need for a device that is safe for medical personnel and patients, and easy to use for injecting drugs or for aspirating liquids into the intraperitoneal organs without damaging other surgical instruments.

Korean Registered Patent No. 1210074 (issued on December 07, 2012)

In order to solve the above-described problems, it is an object of the present invention to provide a safety needle assembly for laparoscopic surgery which is safe and easy to use and which can be injected or drawn during laparoscopic surgery.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided an air conditioner comprising: a receiving groove formed to be axially penetrated in a center; a first rail groove formed in an upper side of the receiving groove in an axial direction; A second rail groove formed in the axial direction, a handle portion formed in an upper portion of the first rail groove and axially connected to the first rail groove and having an opening communicating with the outside; A coupling portion coupled to a rear end of the handle portion and having a coupling groove for coupling the first needle hole and the medical instrument in an axial direction; A needle inserted into the first needle hole and extending outwardly forward of the handle portion through the receiving groove; And a second needle hole is formed in the center of the second needle hole so that a needle extending through the receiving groove and extending to the outside of the handle portion is inserted in the center of the second needle hole. Needle cover; The needle cover is connected to the needle cover at the inner side of the handle portion and reciprocates along the first rail groove and the second rail groove to adjust the length of the needle cover exposed to the outside of the handle portion, ; And an elastic member provided in the receiving groove and elastically supporting the needle cover in a forward direction.

In the embodiment of the present invention, the handle portion may include a first half handle formed with the receiving groove, the first rail groove, the second rail groove, and half of the opening, Wherein the second rail groove and the other half of the opening are formed symmetrically with respect to the first half handle, and wherein the adjusting portion, the portion of the needle cover, and the elastic member are coupled to the first half handle Lt; RTI ID = 0.0 > half-handle. ≪ / RTI >

In the embodiment of the present invention, the adjusting portion may include ribs extending from the needle cover perpendicularly to the longitudinal direction of the needle cover, ribs protruding from both sides of the ribs, inserted into the first rail groove, An elastic lever extending from one end of the rib perpendicularly to the longitudinal direction of the rib and received in the opening, and a second slider extending from one end of the elastic lever, And an upper end portion of the push button is formed with a push button to apply pressure to the lower portion of the needle cover to bend down the elastic lever, And a second slider inserted into the second rail groove and reciprocating along the second rail groove.

In the embodiment of the present invention, a first latching groove connected to the first rail groove is formed at the front end of the opening, a second latching groove connected to the first rail groove is formed at a rear end of the opening, And the elastic lever is protruded from both sides of the elastic lever so that the elastic lever is engaged with the first latching groove or the second latching groove when the elastic lever is positioned in the opening, It may have a locking protrusion inserted into the first rail groove.

In the embodiment of the present invention, the handle portion may have a blocking wall which is formed to cover the upper portion of the receiving groove and blocks the latching protrusion from being inserted into the receiving groove when the elastic lever is bent downward.

In the embodiment of the present invention, the adjusting portion has a reinforcing ring protruding along the outer circumferential surface of the needle cover to extend the rib, and one end of the elastic member is in close contact with the reinforcing ring, Can be brought into close contact with each other.

In the embodiment of the present invention, the blocking wall may be inserted between the first slider and the reinforcing ring.

According to an embodiment of the present invention, when the locking projection is fixed to the second locking groove and the elastic lever is bent downward, when the locking projection is inserted into the first rail groove, the elastic member is moved forward And the needle cover is moved forward to allow the front end of the needle to be received in the inside of the needle cover.

According to the embodiment of the present invention, the length of the needle cover exposed to the front outside of the handle portion can be adjusted by operating the adjusting portion, whereby the front end of the needle can be selectively exposed. Accordingly, the user can insert the front end of the needle cover into the abdominal cavity, expose the needle, and insert the needle into the needle cover before removing the safety saline assembly for laparoscopic surgery from within the abdominal cavity. Thus, And other surgical instruments such as a silicone membrane of the trocar can be prevented from being stuck to the tip of the needle to be damaged.

In addition, according to the embodiment of the present invention, since the safety needle assembly for laparoscopic surgery operates independently from the medical device, even if the disposable syringe is used as a medical device, the safety needle assembly for laparoscopic surgery is repeated until operation is started and terminated It is possible to use.

In addition, according to the embodiment of the present invention, since a syringe of various sizes can be combined with the safety needle assembly for laparoscopic surgery, it is convenient to use an appropriate syringe when necessary.

In addition, according to the embodiment of the present invention, since the safety needle assembly for laparoscopic surgery is manufactured differently in thickness of the needles, it can be used for main use or for suction.

It should be understood that the effects of the present invention are not limited to the effects described above, but include all effects that can be deduced from the description of the invention or the composition of the invention set forth in the claims.

1 is a perspective view illustrating a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention.
2 is an exploded perspective view of a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention.
FIG. 3 is a perspective view illustrating a first half body of the safety saline assembly for laparoscopic surgery according to an embodiment of the present invention.
FIG. 4 is a perspective view illustrating a second half body of the safety saline assembly for laparoscopic surgery according to an embodiment of the present invention. FIG.
FIG. 5 is a perspective view illustrating a needle cover and an adjustment unit of a safety needle assembly for laparoscopic surgery according to an exemplary embodiment of the present invention. Referring to FIG.
FIGS. 6 and 7 are cross-sectional views illustrating an operation example of a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as " comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention, FIG. 2 is an exploded perspective view illustrating a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention, FIG. 4 is a perspective view of a second half body of a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention. FIG. 4 is a perspective view illustrating a first half body of a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention. 3 (a) and 3 (b) show the first half body at different angles, and FIGS. 4 (a) and 4 (b) show the second half body at different angles.

1 to 4, the laparoscopic surgical safety needle assembly includes a handle 100, a coupling part 200, a needle 300, a needle cover 400, a control part 500, and an elastic member 600 ).

First, the handle portion 100 may have a first half handle 110 and a second half handle 120.

3, the first half handle 110 includes a receiving groove 151, a first rail groove 152, a second rail groove 153, an opening 154, a first engaging groove 155, 2 latching grooves 156. As shown in FIG.

4, the second half handle 120 also includes a receiving groove 151, a first rail groove 152, a second rail groove 153, an opening 154, a first engaging groove 155, And a second latching groove 156.

The first half handle 110 and the second half handle 120 may be formed symmetrically with respect to each other. The first half handle 110 has a receiving groove 151, a first rail groove 152, And the second half handle 120 is formed with a receiving groove 151 and a first rail groove 152. The first receiving groove 151 and the second receiving groove 152 are formed in the first half groove 153, the opening 154, the first engaging groove 155 and the second engaging groove 156, The second rail groove 153, the opening 154, the first engaging groove 155, and the second engaging groove 156 may be formed.

When the first half handle 110 and the second half handle 120 are coupled to each other, the handle 100 is provided with receiving grooves 151 and 152 so as to be symmetrical with respect to the center of the handle 100, The first rail groove 152, the second rail groove 153, the opening 154, the first engaging groove 155, and the second engaging groove 156 are formed.

The first half handle 110 is symmetrical with the second half handle 120 and has the same shape as the first half handle 110. Therefore, The description of the first half handle 110 may be applied to the second half handle 120 as well.

For convenience of explanation, the positive pressure of the medical instrument coupled to the coupling portion 200 allows the fluid to flow through the needle 300 in the forward / Rear end " and " rear end " That is, when a positive pressure of the medical instrument is applied, liquid such as a liquid medicine is supplied from the coupling unit 200 to the needle 300, so that the coupling unit 200 is moved to the rear end / rear end, / Front end, the direction from the needle 300 to the coupling part 200 is rearward, and the direction from the coupling part 200 to the needle 300 is forward.

The receiving groove 151 may be formed axially through the center of the first half handle 110. A portion of the needle cover 400, a portion of the needle 300, and the elastic member 600 may be located in the receiving groove 151.

The first rail groove 152 may be formed axially above the receiving groove 151.

The second rail groove 153 may be formed axially below the receiving groove 151.

Accordingly, the receiving groove 151, the first rail groove 152, and the second rail groove 153 may all be formed in parallel.

The opening 154 may be formed axially above the first rail groove 152. The opening 154 may be connected to the first rail groove 152 and may communicate with the outside.

The opening 154 may be formed at a depth lower than the depth of the first rail groove 152 so that when the first half handle 110 and the second half handle 120 are engaged, The width may be narrower than the width of the first rail groove 152.

The first latching groove 155 may be formed at the front end of the opening 154 and the first latching groove 155 may be connected to the first rail groove 152. The first engaging groove 155 and the bottom surface of the first rail groove 152 may be formed on the same plane so that the first engaging groove 155 and the first rail groove 152 are connected without a step .

The second latching groove 156 may be formed at the rear end of the opening 154 and the second latching groove 156 may be connected to the first rail groove 152. The second engaging groove 156 and the bottom surface of the first rail groove 152 may be formed on the same plane so that the second engaging groove 156 and the first rail groove 152 can be connected without a step have.

In addition, the first half handle 110 may have a fitting projection 157. The fitting protrusion 157 may protrude from the rear end of the first half handle 110.

The first half handle 110 may have a blocking wall 158 and the blocking wall 158 may be formed to cover the upper portion of the receiving groove 151. The blocking wall 158 has a blocking wall 158 formed in the first half handle 110 and the second half handle 120 respectively when the first half handle 110 and the second half handle 120 are coupled together As shown in Fig. Here, the interval formed between the blocking walls 158 may correspond to the width of the rib 520 (see FIG. 5) of the regulating portion to be described later. The rib 520 can be moved between the barrier walls 158 and the adjustment part 500 and the needle cover 400 can be reciprocated in the longitudinal direction of the handle part 100. [ The function of the blocking wall 158 will be described later.

When the first half handle 110 and the second half handle 120 are separated from each other, a part of the rear end of the needle cover 400 and the adjusting part 500 and the elastic member 600 are separated from the first half handle 110, The first half handle 110 and the second half handle 120 are coupled to each other so that the inner side of the handle 100 is positioned between the second half handle 120 and the second half handle 120, And a regulating portion 500 and an elastic member 600 may be accommodated.

The first half handle 110 and the second half handle 120 may be bonded together and integrally joined.

The handle portion 100 may have an elliptical cross-sectional shape, so that the volume of the handle portion 100 can be prevented from being unnecessarily increased.

The engaging portion 200 may be coupled to the rear end of the handle 100 and the engaging portion 200 may include a fitting groove 201, a first needle hole 202, and a coupling groove 203 Lt; / RTI >

The fitting recesses 157 of the handle portion 100 can be inserted into the fitting recesses 201 and the fitting recesses 210 and the fitting protrusions 157 can be bonded and integrally joined.

The first needle hole 202 may be formed at the center of the coupling part 200 in the axial direction and the first needle hole 202 may be formed at the front end of the coupling part 200. The needle 300 can be inserted into the first needle hole 202. Specifically, the rear end of the needle 300 may be bonded to the first needle hole 202.

The coupling groove 203 may be formed at the center of the coupling portion 200 in the axial direction and the coupling groove 203 may be formed at the rear end of the coupling portion 200. A medical instrument may be coupled to the coupling groove 203.

The first needle hole 202 and the coupling groove 203 may be connected to each other so that the medical instrument and the needle 300 can be connected to each other.

The medical instrument may include, for example, a syringe for injecting an injection into an organ in the abdominal cavity during laparoscopic surgery, or a suction mechanism for aspirating the liquid of the abdominal cavity or the liquid of the cyst.

The needle 300 to which the rear end is bonded to the first needle hole 202 may extend through the receiving groove 151 of the handle 100 and outwardly forward of the handle 100.

The needle 300 may have a through-hole 310 formed at an axial center thereof.

A portion of the rear end of the needle cover 400 may be received in the receiving groove 151 and the remaining portion may extend outwardly forward of the handle portion 100. [

The needle cover 400 may have a second needle hole 401 formed in the center thereof in the axial direction.

The needle 300 extending through the receiving groove 151 and extending outward from the front of the handle 100 can be inserted into the second needle hole 401.

The adjuster 500 may be formed at the rear end of the needle cover 400. The adjuster 500 may be integrally formed with the needle cover 400 and may be located inside the handle 100.

FIG. 5 is a perspective view illustrating a needle cover and an adjustment unit of a safety needle assembly for laparoscopic surgery according to an embodiment of the present invention. FIG. 5 is further described below.

5, the adjustment unit 500 includes a reinforcing ring 510, a rib 520, a first slider 530, an elastic lever 540, a pushing unit 550, and a second slider (not shown) 560).

The reinforcing ring 510 may be formed at the rear end of the needle cover 400 and protrude along the outer circumferential surface of the needle cover 400.

The reinforcing ring 510 can be positioned inside the receiving groove 151 of the handle portion 100. [ The reinforcing ring 510 may be formed to correspond to the sectional shape of the receiving groove 151 of the handle 100 and be reciprocally moved along the longitudinal direction of the receiving groove 151.

The ribs 520 may extend from the reinforcing ring 510. The rib 520 may extend upward from the needle cover 400 in a direction perpendicular to the longitudinal direction of the needle cover 400.

The first slider 530 may protrude from both sides of the rib 520. The first slider 530 may be inserted into the first rail groove 152 and may be reciprocated along the first rail groove 152.

A gap can be formed between the first slider 530 and the reinforcing ring 510. When the adjusting portion 500 is received inside the handle 100, The blocking wall 158 of the handle portion 100 can be inserted between the first and second openings 510,

The elastic lever 540 may be formed on the upper end of the rib 520 and may extend perpendicularly to the longitudinal direction of the rib 520. The elastic lever 540 may extend in the rearward direction of the needle cover 400 and the elastic lever 540 may be received in the opening 154. [

The pusher 550 may extend from one end of the elastic lever 540 and may extend outside the upper portion of the handle 100 through the opening 154. A push button 551 may be formed at the upper end of the pushing member 550.

The push button 551 may be formed at the upper end of the pushing tool 550 and may be located outside the handle portion 100. When the push button 551 is pressed by the user, that is, when the push button 551 is pressed, the elastic lever 540 can be bent downward with respect to the upper end of the rib 520.

Then, when the pressure applied to the push button 551 is released, the elastic lever 540 can be returned to the initial shape by the elastic restoring force.

The second slider 560 may extend in the longitudinal direction of the needle cover 400 below the needle cover 400. The second slider 560 may extend in the rearward direction of the needle cover 400. The second slider 560 can be inserted into the second rail groove 153 and reciprocated along the second rail groove 153.

The adjusting unit 500 may have a locking protrusion 570 and the locking protrusion 570 may protrude from both sides of the elastic lever 540.

When the elastic lever 540 is positioned in the opening 154, that is, when the elastic lever 540 is in an initial state in which the shape of the elastic lever 540 is not deformed, the locking protrusion 570 is engaged with the first locking groove 155 or the second locking groove 540. [ And can be coupled to the locking groove 156. When the elastic lever 540 is bent downward by applying pressure to the pushing tool 550, the latching protrusion 570 can be inserted into the first rail groove 152.

The elastic member 600 may be provided in the receiving groove 151. One end of the elastic member 600 may be in close contact with the reinforcing ring 510 and the other end of the elastic member 600 may be in close contact with the coupling portion 200. The elastic member 600 may elastically support the regulating unit 500 and the needle cover 400 forward.

Hereinafter, an operation example of the safety needle assembly for laparoscopic surgery will be described.

FIGS. 6 and 7 are cross-sectional views illustrating an operation example of a safety saline assembly for laparoscopic surgery according to an embodiment of the present invention. 6 (a) shows a state where the regulating unit 500 and the needle cover 400 are positioned in front of the handle 100, and FIG. 6 (b) shows a state where the needle cover 400 And the state of the needle 300 at the front end portion. 7 (a) shows a state where the regulating unit 500 and the needle cover 400 are positioned behind the handle 100, and FIG. 7 (b) shows a state where the needle cover 400 And the state of the needle 300 at the front end portion.

6, when the adjuster 500 is positioned at the front of the handle 100 and the elastic lever 540 is positioned at the opening 154, that is, when the elastic lever 540 is in the initial state The engaging protrusion 570 may be inserted into the first engaging groove 155 of the handle part 100. In this case,

At this time, the length of the needle cover 400 exposed to the front outside of the handle 100 is long, so that the front end of the needle 300 is inserted into the needle cover 400 and is not exposed.

When the push button 551 is pressed and the elastic lever 540 is bent downward, the latch protrusion 570 moves from the first latch groove 155 to the first rail groove 152. In this state, when the user pushes the push button 551 backward, the first slider 530 and the locking protrusion 570 are moved backward along the first rail groove 152, and the second slider 560 And can be moved backward along the second rail groove 153. As the adjuster 500 is moved backward, the needle cover 400 coupled with the adjuster 500 is also moved backward, and the elastic member 600 is compressed.

On the other hand, when the elastic lever 540 is bent downward, the locking protrusion 570, which is moved from the first locking groove 155 to the first rail groove 152, is blocked by the blocking wall 158. As a result, the locking protrusion 570 can be prevented from being inserted into the receiving groove 151 and being caught by the elastic member 600.

7, when the engaging protrusion 570 moves rearward and moves to the rear end of the first rail groove 152, the engaging protrusion 570 moves downward in the vertical direction of the second engaging groove 156 Lt; / RTI > In this state, when the pressure applied to the push button 551 is released, the elastic lever 540 returns to the initial state by the elastic restoring force, and the locking protrusion 570 moves from the first rail groove 152 to the second And is inserted into the latching groove 156. In this case, the length of the needle cover 400 exposed to the front outside of the handle 100 is reduced, and thus the front end of the needle 300 is exposed to the front of the needle cover 400.

Thereafter, when the push button 551 is pressed again and the elastic lever 540 is bent downward, the latch protrusion 570 moves from the second latch groove 156 to the first rail groove 152. At this time, since the elastic member 600 is in a compressed state, the elastic member 600 is restored to the initial shape and the adjustment unit 500 is pushed forward, even if the user does not move the push button 551 forward do. Accordingly, the length of the needle cover 400 exposed to the front outside of the handle 100 is increased again, and the front end of the needle 300 is inserted into the needle cover 400.

In this way, the user can adjust the length of the needle cover 400 exposed to the front outside of the handle 100 through the adjuster 500, thereby selectively exposing the front end of the needle 300 .

According to the present invention, it is possible to prevent the needle 300 from being exposed unexpectedly from the needle cover 400 without artificial manipulation. The user inserts the needle 300 into the abdominal cavity and exposes the needle 300. The needle 300 is inserted into the needle cover 400 before the needle cover 400 is taken out of the abdominal cavity, Therefore, the safety of the medical staff and the patient can be improved during the laparoscopic surgery.

In addition, since the safety needle assembly for laparoscopic surgery according to the present invention operates independently of the medical instrument, even if the disposable syringe is used as a medical device, the safety needle assembly for laparoscopic surgery starts operation of the patient, Repeatability is possible.

In addition, various sizes of syringes may be incorporated into the safety needle assembly for laparoscopic surgery. Therefore, it is convenient that an appropriate syringe can be combined and used as needed. For example, when resecting uterine leiomyoma, one female leiomyoma must be resected and the vasoconstrictor should be injected again to resect another leiomyoma. In this case, conventionally, a plurality of syringes for vasoconstriction should be prepared. However, when the safety suture assembly for laparoscopic surgery according to the present invention is used, a large-capacity vasoconstrictor syringe can be combined with a safety suture assembly for laparoscopic surgery , It is possible to repeatedly inject the same patient during surgery without preparing a plurality of syringes.

In addition, the safety needle assembly for laparoscopic surgery can be used for injection or use by making the needles 300 different in thickness depending on the application. For example, the needles 300 can be used for main use when thin needles of the order of 21 gauge are used, and can be used for aspiration when 16 or more gauge needles are used.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100: handle portion 110: first half handle
120: second half handle 151: receiving groove
152: first rail groove 153: second rail groove
155: first engaging groove 156: second engaging groove
157: fitting projection 158: blocking wall
200: coupling portion 201: fitting groove
300: Needle 400: Needle cover
500: regulating unit 530: first slider
540: elastic lever 550:
560: second slider 570:
600: elastic member

Claims (8)

A first rail groove formed axially in the upper side of the receiving groove, a second rail groove formed in the lower side of the receiving groove in an axial direction, A handle portion formed on an upper portion of the groove in an axial direction and connected to the first rail groove and having an opening communicating with the outside;
A coupling portion coupled to a rear end of the handle portion and having a coupling groove for coupling the first needle hole and the medical instrument in an axial direction;
A needle inserted into the first needle hole and extending outwardly forward of the handle portion through the receiving groove;
And a second needle hole is formed in the center of the second needle hole so that a needle extending through the receiving groove and extending to the outside of the handle portion is inserted in the center of the second needle hole. Needle cover;
The needle cover is connected to the needle cover at the inner side of the handle portion and reciprocates along the first rail groove and the second rail groove to adjust the length of the needle cover exposed to the outside of the handle portion, ; And
And an elastic member provided in the receiving groove and elastically supporting the needle cover in a forward direction,
The handle portion includes a first half handle, a second half handle formed symmetrically to the first half handle and coupled to the adjuster, a portion of the needle cover, and the first half handle to receive the elastic member therein And,
And a rear end of the first half handle and a rear end of the second half handle are coupled to the coupling portion. The method according to claim 1,
Wherein the receiving recess, the first rail groove, the second rail groove, and half of the opening are formed in the first half handle,
Wherein the second half handle is formed with the receiving groove, the first rail groove, the second rail groove, and the other half of the opening. The method according to claim 1,
The controller
A rib extending from the needle cover perpendicularly to the longitudinal direction of the needle cover,
A first slider protruding from both sides of the rib and inserted into the first rail groove and reciprocating along the first rail groove;
An elastic lever extending from one end of the rib perpendicularly to the longitudinal direction of the rib and received in the opening;
A pushing portion extending from one end of the elastic lever to extend outwardly from an upper portion of the handle portion through the opening portion and having a push button for applying a pressure to the elastic lever to bend down the elastic lever,
And a second slider extending in the longitudinal direction of the needle cover at a lower portion of the needle cover and inserted into the second rail groove and reciprocating along the second rail groove. . The method of claim 3,
A first latching groove connected to the first rail groove is formed at a front end of the opening and a second latching groove is formed at a rear end of the opening to be connected to the first rail groove,
Wherein the adjusting portion is formed on both side surfaces of the elastic lever so as to be engaged with the first latching groove or the second latching groove in a state in which the elastic lever is located in the opening portion and pressure is applied to the pressing lever, And a locking protrusion that is inserted into the first rail groove when bent. 5. The method of claim 4,
The handle portion
And a blocking wall formed to cover the upper portion of the receiving groove and blocking the engaging projection from being inserted into the receiving groove when the elastic lever is bent downward. 6. The method of claim 5,
Wherein the adjusting portion has a reinforcing ring protruding along an outer peripheral surface of the needle cover to extend the rib,
Wherein one end of the elastic member is in close contact with the reinforcement ring and the other end is in close contact with the engaging portion. The method according to claim 6,
And the blocking wall is inserted between the first slider and the reinforcing ring. The method according to claim 6,
When the engaging projection is inserted into the first rail groove as the elastic lever is bent downward in a state where the engaging projection is fixed to the second engaging groove, the elastic member pushes the regulating portion forward and the needle cover is moved forward So that the front end of the needle is received in the inside of the needle cover.

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