WO2022131524A1

WO2022131524A1 - Surgical safety needle assembly

Info

Publication number: WO2022131524A1
Application number: PCT/KR2021/015010
Authority: WO
Inventors: 이기석
Original assignee: 주식회사 오렌지메딕스
Priority date: 2020-12-17
Filing date: 2021-10-25
Publication date: 2022-06-23
Also published as: KR20220086975A; KR102583121B1

Abstract

One embodiment of the present invention provides a surgical safety needle assembly which is safe and can be conveniently used. The surgical safety needle assembly comprises a housing part, a coupling part, an adjustment part, a needle, and a needle cover. The housing part has a reception space formed therein to extend therethrough in the longitudinal direction thereof and a guide groove formed on an upper part thereof to extend in the longitudinal direction. The coupling part is coupled to the rear end of the housing part and has a needle hole formed to extend through the center thereof. The adjusting part includes a lever provided in the reception space and selectively opening the front area of the guide groove while reciprocally moving along the longitudinal direction of the housing part. A part of the needle is coupled to the needle hole and extends through the adjustment part and the reception space outward beyond the front side of the housing part. The needle cover causes, while moving integrally with the adjustment part, the front end of the needle to be selectively exposed. The coupling part includes an extension cover which is disposed while covering the rear area of the guide groove and receives at least one part of the lever moving backward.

Description

Surgical needle assembly

The present invention relates to a safety needle assembly for surgery, and more particularly, to a safety needle assembly for surgery that is safe and convenient to use.

In general, during laparoscopic surgery, there is a case in which a drug is injected into an organ inside the abdominal cavity, in which case a specially designed syringe and syringe are used.

However, since the conventionally used syringe devices do not have a needle cover and thus the needle is always exposed, there is a problem that a medical staff may be stabbed by the needle during use.

In addition, when inserting the syringe device into the abdominal cavity, there is a problem that the needle tip may damage other surgical instruments, such as the silicone membrane of the trocar attached to the patient.

Meanwhile, during laparoscopic surgery, ascites fluid or cyst fluid in the abdominal cavity may be sucked. In this case, a syringe or suction is generally used by connecting a suction needle. In this case, the same problem as described above occurs because the needle is always exposed because there is no needle cover.

Therefore, there is a need for a device that is safe for medical staff and patients, and which is convenient to use for injecting drugs or sucking liquids into organs in the abdominal cavity without damaging other surgical instruments.

As a prior document, there is Republic of Korea Patent Publication No. 1210074 (published on December 7, 2012).

In order to solve the above problems, the technical object of the present invention is to provide a safety needle assembly for surgery that is safe and convenient to use.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical object, one embodiment of the present invention is a housing portion having a receiving space formed through the longitudinal direction on the inside, and a guide groove extending in the longitudinal direction on the upper portion; a coupling part coupled to the rear end of the housing and having a needle hole in the center thereof; a control unit provided in the receiving space and having a lever for selectively opening a front region of the guide groove while reciprocating along a longitudinal direction of the housing unit; a needle part coupled to the needle hole and extending outward from the front of the housing part through the adjustment part and the receiving space; and a needle cover for selectively exposing the front end of the needle while moving integrally with the adjusting unit, wherein the coupling unit is disposed while covering the rear region of the guide groove, at least a portion of the lever moving backward It provides a safety needle assembly for surgery, characterized in that it comprises an extension cover for accommodating the.

In an embodiment of the present invention, the housing part has a housing body having the accommodating space therein, and a guide bar protruding from an inner circumferential surface of the housing body and extending in the longitudinal direction of the housing body, and the adjusting unit is located in the accommodating space. It may have a slider coupled to the guide bar and reciprocally moved along the longitudinal direction of the housing part.

In an embodiment of the present invention, the adjusting part may have a guide flange protruding from the outer peripheral surface of the slider and coupled to the guide bar to guide the linear movement of the slider.

In an embodiment of the present invention, a plurality of guide flanges may be disposed to be spaced apart from each other in a longitudinal direction of the slider.

In an embodiment of the present invention, the guide bar may extend to the rear of the housing body, and the coupling portion may have a coupling groove formed so that the rear end of the guide bar is inserted and coupled.

In an embodiment of the present invention, the lever may be connected to the rear end of the slider and extend in front of the slider to be provided under the guide groove.

In an embodiment of the present invention, when the slider is moved forward, the guide groove may be covered by both the lever and the extension cover.

In an embodiment of the present invention, it is provided in the receiving space, it may include an elastic member for elastically supporting the adjustment unit forward.

In an embodiment of the present invention, the slider is formed in the longitudinal direction at the center and has a first body portion having a first through hole to which the needle cover is coupled, and is formed to be connected to the first body portion, and the needle is formed to be connected to the first body portion. It may have a second body portion having a second through-hole and a locking protrusion to which the front end of the elastic member is in close contact.

In an embodiment of the present invention, the housing portion has a first locking groove formed in the front end of the guide groove and a second locking groove formed in the rear of the first locking groove, the adjustment unit, the front end of the lever It may have a stop protrusion formed to protrude in the portion and inserted into the first locking groove or the second locking groove to restrict the movement of the adjusting unit.

In an embodiment of the present invention, the extended cover has coupling slits extending in the longitudinal direction of the extended cover on both sides of the extended cover, and the housing part is formed at the rear end of the guide groove to be inserted into the coupling slit. It may have an insertion step that becomes

In an embodiment of the present invention, it is provided between the needle cover and the needle, and the needle is penetrated inside and the outer circumferential surface is in contact with the inner circumferential surface of the needle cover so that the needle does not move from the inside of the needle cover. It may include a spacer part.

According to an embodiment of the present invention, in the safety needle assembly for surgery, the length at which the needle cover is exposed to the front and the outside of the handle part can be adjusted by manipulation of the adjusting part, and through this, it is easily controlled so that the front end of the needle is selectively exposed can be

In addition, according to an embodiment of the present invention, since the safety needle assembly for surgery operates independently of the medical device, even if a disposable syringe is used as the medical device, the safety needle assembly for surgery is used in the same patient from the start of the operation until the end of the operation. Can be used repeatedly.

In addition, according to an embodiment of the present invention, since the extended cover of the coupling part covers the rear region of the guide groove, and the lever of the adjustment part can cover the front region of the guide groove, the guide when not using the surgical needle assembly It is possible to prevent foreign substances such as dust from entering the groove.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view showing a safety needle assembly for surgery according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing the safety needle assembly for surgery according to an embodiment of the present invention.

3 and 4 are perspective views illustrating a housing part of the safety needle assembly for surgery according to an embodiment of the present invention.

5 is a perspective view showing a coupling part of the safety needle assembly for surgery according to an embodiment of the present invention.

6 is a perspective view illustrating a control unit of the safety needle assembly for surgery according to an embodiment of the present invention.

7 is a cross-sectional view of a state in which the adjustment unit is moved forward in the safety needle assembly for surgery according to an embodiment of the present invention.

8 is a cross-sectional view illustrating a state in which the adjustment unit is moved rearward in the safety needle assembly for surgery according to an embodiment of the present invention.

9 is an exemplary view for explaining a spacer part of the safety needle assembly for surgery according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. "Including cases where In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of addition or existence of numbers, steps, operations, components, parts, or combinations thereof.

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

1 is a perspective view showing the safety needle assembly for surgery according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view showing the safety needle assembly for surgery according to an embodiment of the present invention.

1 and 2 , the safety needle assembly for surgery may include a housing part 100 , a coupling part 200 , an adjustment part 300 , a needle 400 , and a needle cover 500 .

The housing part 100 may have an accommodating space 120 (refer to FIG. 4 ) penetrating in the central axis direction, and may have a guide groove 130 extending in the longitudinal direction thereon.

Hereinafter, for convenience of explanation, the direction from the housing part 100 to the coupling part 200 is the rear direction, and the direction from the coupling part 200 to the housing part 100 is the front direction, and the front end/front end is based on this. Described as /front/front and rear/rear/rear.

The coupling part 200 may be coupled to the rear end of the housing part 100 . A part of the coupling part 200 may be coupled to the guide groove 130 , and may extend forward of the guide groove 130 to cover the rear area BA (refer to FIG. 3 ) of the guide groove 130 .

The adjusting unit 300 may be provided in the receiving space 120 of the housing unit 100 to reciprocate along the longitudinal direction of the housing unit 100 . A portion of the adjustment unit 300 may extend to the outside of the housing unit 100 through the guide groove 130 . The adjusting unit 300 may have a lever 320 for selectively opening the front area (FA, see FIG. 3) of the guide groove 130, and when the adjusting unit 300 is moved to the rear, the lever 320 is It may be inserted into the coupling part 200 .

The needle 400 may have a rear end 401 coupled to the needle hole 211 of the coupling unit 200 to be fixed, and penetrate the adjusting unit 300 and the receiving space 120 to form the housing unit 100 . It may extend anteriorly and outwardly.

The needle cover 500 may have a rear end 501 coupled to the adjustment unit 300 and accommodate the needle 400 inside. The needle cover 500 may selectively expose the front end 402 of the needle 400 from the front end 502 of the needle cover 500 while moving integrally with the adjusting unit 300 .

In detail, FIGS. 3 and 4 are perspective views illustrating a housing part of the safety needle assembly for surgery according to an embodiment of the present invention.

3 and 4 , the housing part 100 may include a housing body 110 , a guide groove 130 , and a guide bar 140 .

The housing body 110 may form a body of the housing part 100 . The housing body 110 may have an accommodating space 120 therein, and the accommodating space 120 may be opened to the rear of the housing body 110 .

The guide groove 130 may be formed on the upper portion of the housing body 110 , and may extend from the rear end of the housing body 110 in the direction of the front end.

The guide bar 140 may protrude from the inner circumferential surface of the housing body 110 and extend in the longitudinal direction of the housing body 110 . The guide bar 140 may extend outside the rear of the housing body 110 . A plurality of guide bars 140 may be formed, and may be disposed to be spaced apart from each other on the inner circumferential surface of the housing body 110 .

In addition, the housing part 100 may have a first locking groove 150 and a second locking groove 151 .

The first locking groove 150 may be formed at the front end of the guide groove 130 . The first locking groove 150 may be formed to extend in the width direction of the guide groove 130 , and may be formed as a pair on both sides of the guide groove 130 .

The second locking groove 151 may be formed behind the first locking groove 150 . The second locking grooves 151 may also be formed to extend in the width direction of the guide grooves 130 , and may be formed in pairs on both sides of the guide grooves 130 .

In addition, the housing part 100 may have an insertion step 131 . The insertion step 131 may be formed at the rear end of the guide groove 130 . The insertion step 131 may be formed to have a thickness smaller than the thickness of the guide groove 130 . The insertion step 131 may form a rear area BA of the guide groove 130 . A portion of the guide groove 130 excluding the rear area BA where the insertion step 131 is formed may be defined as the front area FA, and the first locking groove 150 and the second locking groove 151 . may be formed in the front area FA.

A first through hole 112 may be formed in the front end of the housing 100 , and a first coupling step 115 may be formed in the rear end of the housing 100 . The first coupling step 115 may be formed along the rear end edge of the housing part 100 .

5 , the coupling unit 200 may have a coupling body 210 , an extension cover 220 , and an adapter sphere 230 .

The coupling body 210 may form a body of the coupling part 200 , and may be coupled to the rear end of the housing part 100 . A second coupling step 215 may be formed along the edge of the front end of the coupling body 210 . The second coupling step 215 may be formed to correspond to the first coupling step 115 , and when the coupling body 210 is coupled to the rear end of the housing part 100 , the second coupling step 215 is It may be engaged and coupled to the first coupling step 115 .

The adapter sphere 230 may be formed at the rear end of the coupling body 210 , and the adapter sphere 230 may be connected to a separate syringe.

A needle hole 211 may be formed through the center of the coupling body 210 , and the needle hole 211 may be connected to a second through hole 231 (refer to FIG. 7 ) formed in the adapter sphere 230 . The rear end 401 of the needle 400 may be coupled to the needle hole 211 , and through this, the needle 400 may be connected to a syringe coupled to the adapter sphere 230 .

In addition, a coupling groove 213 may be formed in the coupling body 210 . The coupling groove 213 may be formed to correspond to the guide bar 140 , and when the coupling body 210 is coupled to the rear end of the housing part 100 , the rear end of the guide bar 140 has a corresponding coupling groove 213 . ) can be insertedly coupled to

The extension cover 220 may be formed on the upper portion of the coupling body 210 , and may be coupled to the rear end of the guide groove 130 . The extended cover 220 may have a pair of coupling slits 225 , and the coupling slits 225 may be formed to extend in the longitudinal direction of the extended cover 220 on both sides of the extended cover 220 . The insertion step 131 may be inserted into the coupling slit 225 , and when the coupling body 210 is coupled to the rear end of the housing 100 , the extension cover 220 is formed in the guide groove 130 . ) can cover the rear area BA.

In addition, an insertion groove 221 may be formed at the lower end of the extension cover 220 . The insertion groove 221 may be formed to extend along the longitudinal direction of the extension cover 220 .

6 is a perspective view showing an adjustment part of the safety needle assembly for surgery according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view of a state in which the adjustment part is moved forward in the safety needle assembly for surgery according to an embodiment of the present invention. Figure 8 is a cross-sectional view of a state in which the adjustment unit is moved rearward in the safety needle assembly for surgery according to an embodiment of the present invention.

6 to 8 , the adjustment unit 300 may include a slider 310 , a lever 320 , a guide flange 330 , and a stop protrusion 340 .

The slider 310 may be provided in the accommodating space 120 of the housing part 100 and may reciprocate along the longitudinal direction of the housing part 100 . The slider 310 may have a first body portion 313 forming a front end of the slider 310 and a second body portion 314 forming a rear end of the slider 310 .

The first body portion 313 may have a first through hole 315 that is formed to penetrate in the longitudinal direction of the first body portion 313 in the center, and the second body portion 314 has a second body portion ( It may have a second through hole 316 that is formed through the longitudinal direction of the 314 . The first through hole 315 and the second through hole 316 may be connected. In addition, a locking protrusion 317 may be formed at the connection point of the first through hole 315 and the second through hole 316 . The locking jaw 317 may be formed to extend along the circumferential direction.

The rear end 501 (refer to FIG. 2 ) of the needle cover 500 may be inserted into the first through hole 315 . Since the rear end 501 of the needle cover 500 inserted into the first through hole 315 may be caught by the locking jaw 317, the insertion depth may be determined. And, the inner diameter of the first through hole 315 may be formed to correspond to the outer diameter of the needle cover (500). Accordingly, the needle cover 500 may be fitted into the first through hole 315 , and the needle cover 500 may be moved together with the slider 310 .

Meanwhile, the safety needle assembly for surgery may include an elastic member 600 . The elastic member 600 may be provided to surround the needle 400 in the receiving space 120 of the housing part 100 . The front end of the elastic member 600 may be inserted into the second through hole 316 to be in close contact with the locking jaw 317 , and the rear end may be in close contact with the coupling part 200 , through which the elastic member 600 is The slider 310 can be elastically supported forward.

The guide flange 330 may protrude from the outer circumferential surface of the slider 310 , and the guide flange 330 may have a recess 331 coupled to the guide bar 140 . The groove 331 may be formed to correspond to the guide bar 140 along the edge of the guide flange 330 . In addition, a plurality of guide flanges 330 may be disposed to be spaced apart from each other in the longitudinal direction of the slider 310 . When the slider 310 is moved while the groove 331 is coupled to the guide bar 140 , the slider 310 may move stably in a straight line without being rotated.

The lever 320 may be connected to the rear end 311 of the slider 310 by a connector 321 , and may be formed to extend forward and be provided under the guide groove 130 .

The stop protrusion 340 may be formed to protrude from the front end of the lever 320 . When the lever 320 is moved forward of the guide groove 130 , the stop protrusion 340 may be inserted into the first locking groove 150 . As shown in FIG. 7 , when the stop protrusion 340 is coupled to the first locking groove 150 , the lever 320 may cover the front area FA of the guide groove 130 , and accordingly Both the guide groove 130 may be covered by the lever 320 and the extension cover 220 . In addition, the front end 402 of the needle 400 may be located inside the needle cover 500 . When the guide groove 130 is all covered by the lever 320 and the extension cover 220 when the surgical safety needle assembly is not used, it is necessary to prevent foreign substances such as dust from entering the guide groove 130. can

The lever 320 may have elasticity, and when the front end of the lever 320 is pressed downward by an external force, the lever 320 is bent while the front end of the lever 320 is moved downward and the stop protrusion 340 is first 1 It can be removed from the locking groove 150 . A reinforcing rib 322 for reinforcing the strength of the lever 320 may be formed at a lower portion of the lever 320 .

And, when the lever 320 is moved rearward, the slider 310 is also moved rearward, and accordingly, the needle cover 500 may also be moved rearward together with the slider 310 . In this case, the extension cover 220 accommodates at least a portion of the lever 320 . That is, the lever 320 moving rearward may be inserted into the insertion groove 221 of the extension cover 220 . A push button 350 may be provided at the front end of the lever 320 , and the push button 350 may be provided outside the upper portion of the housing 100 so that a user can easily press it.

When the stop protrusion 340 is positioned below the second locking groove 151 while the lever 320 is moved backward, the lever 320 is elastically restored and the front end of the lever 320 is moved upward, and the stop protrusion 340 may be inserted into the second locking groove 151 to be fixed. In addition, the front end 402 of the needle 400 may be exposed to the outside of the front end 502 of the needle cover 500 (see FIG. 8 ).

On the other hand, when the stop protrusion 340 is inserted into the second locking groove 151 and is in a fixed state, the elastic member 600 is in a compressed state. Therefore, when the front end of the lever 320 is pressed downward by an external force and the stop protrusion 340 is pulled out from the second locking groove 151, the slider 310 is formed by the elastic restoring force of the elastic member 600. can be moved forward.

First, as shown in FIG. 8(b), the needle cover 500 is formed to have a first inner diameter D1, and the needle 400 has a first outer side corresponding to the first inner diameter D1. In the case of having a diameter D2, the needle 400 may shake less on the inside of the needle cover 500.

However, as shown in FIG. 9 , when the second outer diameter D3 of the needle 500a is much smaller than the first outer diameter D2, the needle 500a may vibrate a lot on the inside of the needle cover 500 . have.

To prevent this, the safety needle assembly for surgery may include a spacer unit 700 . The spacer part 700 may be provided between the needle cover 500 and the needle 500a , the needle 500a penetrates inside, and the outer circumferential surface may be in contact with the inner circumferential surface of the needle cover 500 . Accordingly, the needle 500a may not be shaken from the inside of the needle cover 500 . A plurality of spacer parts 700 may be provided.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

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

The safety needle assembly for surgery according to the present invention is used to inject a drug into an organ inside the abdominal cavity during laparoscopic surgery or to aspirate liquid such as ascites fluid inside the laparoscope, and can safely protect medical staff or patients, and trocar, etc. Since it can prevent other surgical instruments from being damaged by the needle, it can be widely used in industry.

Claims

a housing part having an accommodating space penetrating through the inside in the longitudinal direction, and a guide groove extending in the longitudinal direction on the upper part;

a coupling part coupled to the rear end of the housing and having a needle hole in the center thereof;

a control unit provided in the receiving space and having a lever for selectively opening a front region of the guide groove while reciprocating along a longitudinal direction of the housing unit;

a needle part coupled to the needle hole and extending outward from the front of the housing part through the adjustment part and the receiving space; and

and a needle cover for selectively exposing the front end of the needle while moving integrally with the adjusting unit;

The coupling portion is disposed while covering the rear region of the guide groove, the surgical safety needle assembly, characterized in that it comprises an extension cover for accommodating at least a portion of the lever that is moved to the rear.
According to claim 1,

the housing part

a housing body having the accommodating space therein;

and a guide bar protruding from the inner circumferential surface of the housing body and extending in the longitudinal direction of the housing body;

the control unit

The safety needle assembly for surgery, characterized in that it is provided in the receiving space and is coupled to the guide bar and has a slider that reciprocates along the longitudinal direction of the housing.
3. The method of claim 2,

the control unit

The safety needle assembly for surgery, characterized in that it has a guide flange formed to protrude from the outer peripheral surface of the slider, coupled to the guide bar to guide the linear movement of the slider.
4. The method of claim 3,

A safety needle assembly for surgery, characterized in that a plurality of the guide flanges are spaced apart along the longitudinal direction of the slider.
3. The method of claim 2,

The guide bar is formed to extend to the rear of the housing body,

The safety needle assembly for surgery, characterized in that the coupling portion has a coupling groove formed to be inserted and coupled to the rear end of the guide bar.
3. The method of claim 2,

The lever is connected to the rear end of the slider and is formed to extend forward of the slider and is provided under the guide groove.
7. The method of claim 6,

When the slider is moved forward, the safety needle assembly for surgery, characterized in that all of the guide groove is covered by the lever and the extension cover.
3. The method of claim 2,

The safety needle assembly for surgery, which is provided in the receiving space, and comprises an elastic member for elastically supporting the adjusting part in the front.
9. The method of claim 8,

the slider

A first body portion formed in the longitudinal direction at the center and having a first through hole to which the needle cover is coupled therein;

A safety needle assembly for surgery, characterized in that it has a second through hole formed to be connected to the first body part through which the needle passes, and a second body part having a locking jaw to which the front end of the elastic member is in close contact.
According to claim 1,

The housing portion has a first locking groove formed in the front end of the guide groove and a second locking groove formed in the rear of the first locking groove,

The adjustment part is formed protruding from the front end of the lever and is inserted into the first locking groove or the second locking groove to have a stop protrusion for restricting the movement of the adjustment part.
According to claim 1,

The extended cover has a coupling slit extending in the longitudinal direction of the extended cover on both sides of the extended cover,

The housing part safety needle assembly for surgery, characterized in that it has an insertion step formed at the rear end of the guide groove to be inserted into the coupling slit.
According to claim 1,

It is provided between the needle cover and the needle, and the needle passes through the inside and the outer circumferential surface is in contact with the inner circumferential surface of the needle cover to prevent the needle from shaking from the inside of the needle cover, characterized in that it comprises a spacer part Surgical safety needle assembly.