KR102549554B1 - Surgical polymer clip applier - Google Patents

Abstract

In the present invention, the polymer clips are sequentially arranged inside the shaft unit instead of the cartridge unit, and the polymer clip is moved to the firing position by air pressure with only one operation of the handle unit and automatically loaded, and the polymer clip is ligated in the loaded state. As ligation is performed by the unit, the stability and accuracy of clip firing are improved to promote patient and user convenience, and when the use of a titanium clip is necessary while using a polymer clip, it is selectively detachably installed on one side of the handle unit. Only the shaft unit is replaced, the handle unit is used in common, and only the pneumatic tank can be replaced easily and quickly when the air pressure in the pneumatic tank is exhausted, reducing surgical costs and preventing resource waste. it's about

Description

Surgical polymer clip launcher {Surgical polymer clip applier}

The present invention relates to a surgical polymer clip launching device, and more particularly, polymer clips are sequentially arranged inside a shaft unit instead of a cartridge unit, and the polymer clip is moved into a firing position by pneumatic pressure with only one manipulation of a handle unit. As the polymer clip is automatically loaded by moving it, and the ligation is performed by the ligation unit while the polymer clip is in the loading state, the stability and accuracy of the clip firing are improved to promote patient and user convenience, and the use of the titanium clip is reduced while the polymer clip is in use. When necessary, only the shaft unit that is selectively detachably installed on one side of the handle unit is replaced, the handle unit is used in common, and when the air pressure in the pneumatic tank is exhausted, only the pneumatic tank can be replaced easily and quickly to reduce surgery costs. It relates to a surgical titanium clip launcher that can prevent resource waste.

BACKGROUND OF THE INVENTION [0002] In general, during a surgical operation, a surgeon must close or ligate blood vessels and other conduits in the surgical site before incision in order to prevent excessive bleeding of the patient and reduce the risk of developing other complications such as infection.

In addition, during surgical operations such as resection of organs, procedures in which veins or arteries must be cut or hemostasis frequently occur. In particular, in order to prevent excessive bleeding during blood vessel cutting, bleeding is performed on both sides of the blood vessel to be cut before blood vessel cutting.

Conventionally, blood vessel hemostasis is performed by suturing or ligating the blood vessel using a surgical thread. However, blood vessel hemostasis using a surgical thread requires manually suturing or ligating blood vessels using a needle and suture material, so it takes a lot of time in operations where space and vision are limited, such as endoscopic surgery. There are also problems that are difficult to implement.

On the other hand, when blood vessel is ligated using a surgical thread, there is always a possibility of blood vessel damage or separation due to loosening or slipping of the ligated surgical thread. there is.

As such, today, surgical clips are proposed and widely used to solve problems caused by using surgical threads. These surgical clips can be applied relatively easily and quickly compared to methods using surgical threads, so their use is increasing not only in open surgery but also in endoscopic surgery. are being developed in various ways.

Therefore, currently, ligation methods using clips of various materials are widely used, and various surgical clips for this purpose have been proposed. In addition, surgical clips are classified into titanium clips and polymer clips depending on the purpose.

However, conventional surgical polymer clip launchers need to finely and precisely adjust the trigger to load the clips into the firing position and sequentially fire the clips one by one. As the loading and firing of the clip is operated by the operation of the mechanical mechanism and consists of several equipment, defects occur, or smooth firing and loading do not occur, or multiple clips are fired at once, resulting in equipment failure. There were problems in that stability and accuracy deteriorated, reliability decreased, and in severe cases, the patient's operation time was increased and recovery was delayed.

In addition, the conventional polymer clip launcher for surgery is not able to automatically load the clip to the firing position, so reliability is reduced and surgical accuracy is lowered. However, there was a problem that threatened the lives of patients through an increase in medical accidents.

Moreover, in the conventional polymer clip launcher for surgery, only the polymer clip launcher is used when the polymer clip is fired, and when the titanium clip is fired, a surgical clip launcher dedicated to the titanium clip is separately used. That is, the titanium clip and the polymer clip have different configurations due to the different mechanisms and configurations for firing them because their characteristics and advantages and disadvantages are so different from each other, so the surgical clip launcher that fires the polymer clip only fires the polymer clip. And, as the surgical clip launcher that fires the titanium clip only fires the titanium clip, an independent surgical clip launcher must be separately purchased and used independently to use the titanium clip and the polymer clip, which increases the cost of surgery. There was a problem of increasing the economic burden of the patient, causing inconvenience to the doctor, and wasting resources.

In addition, the conventional polymer clip launcher for surgery does not assemble and produce by optimizing each component and parts, such as the shaft and handle, in a module form, increasing manufacturing cost and manufacturing time, and miniaturization is not possible. The large size causes inconvenience to users or workers, increases storage and transportation costs, ultimately increases the patient's surgical cost burden, and increases the selling price, resulting in increased medical insurance premiums, resulting in national waste.

Republic of Korea Patent Publication No. 10-2012-0018788 Korean Patent Publication No. 10-2012-0028911 Korean Patent Publication No. 10-2015-0112760 Korean Patent Publication No. 10-2020-0073008

The present invention is to solve the above problems, an object of the present invention is that the polymer clip is sequentially arranged inside the shaft unit instead of the cartridge unit, and the polymer clip is fired by pneumatic operation with only one manipulation of the handle unit. As the polymer clip is automatically loaded by moving it into the loading state, and the ligation is performed by the ligation unit while the polymer clip is loaded, the stability and accuracy of the clip firing are improved to promote patient and user convenience, and the surgery time is shortened to quickly recover the patient. To promote, and when the use of the titanium clip is required during the use of the polymer clip launched through the shaft unit and the ligation unit, only the polymer clip shaft unit that is detachably coupled to one side of the handle unit so as to be selectively replaceable is the titanium clip shaft. unit, the handle unit is used in common with the polymer clip shaft unit, and when all the clips are exhausted or the air pressure is exhausted, only the polymer clip shaft unit or the pneumatic tank can be replaced simply and quickly to perform surgery repeatedly using the handle unit. Reduce cost, prevent waste of resources, improve assembly and productivity to reduce manufacturing cost and manufacturing time, and promote convenience in storage and transportation through compaction, ultimately reducing manufacturing cost and maximizing customer satisfaction. It relates to a surgical polymer clip launcher.

In order to achieve the object of the present invention, a surgical polymer clip launcher according to the present invention is a surgical polymer clip launcher for launching a polymer clip for ligation of blood vessels or tubular tissues, wherein the polymer clip is loaded by pneumatic pressure and the a handle unit for ligating blood vessels or tubular tissues with polymer clips; a shaft unit detachably installed on one side of the handle unit; and a ligation unit formed on one side of the shaft unit and ligating the polymer clips, wherein the plurality of polymer clips are spaced apart at regular intervals along the horizontal direction of the shaft unit so that the plurality of polymer clips can be sequentially launched. can be placed in

In addition, in another preferred embodiment of the surgical polymer clip launcher according to the present invention, the shaft unit of the surgical polymer clip launcher has a cavity in the center and extends in the horizontal direction, and the ligation unit is disposed on one side , the other side of the circular rod portion inserted into the control unit; a transfer unit inserted into the round bar unit and in which a plurality of the polymer clips are disposed and stored at regular intervals in a horizontal direction; a draw bar that extends in the horizontal direction and is inserted into and disposed adjacent to the conveying part inside the round bar part to load the polymer clip stored in the conveying part into the ligation unit; and a connection part having one side connected to the draw bar to forward move the draw bar.

In addition, in another preferred embodiment of the surgical polymer clip launcher according to the present invention, one side of the shaft unit of the surgical polymer clip launcher is fastened to the connection part and the other side is in contact with the slide unit to prevent the forward movement of the moving unit. an expansion unit for moving the connection unit forward along the line; and a holder portion detachably coupled to an outer circumferential surface of one side of the round bar portion and fixing and supporting the shaft unit to the adjusting portion.

In addition, in another preferred embodiment of the surgical polymer clip launcher according to the present invention, the transfer part of the shaft unit of the surgical polymer clip launcher is formed at a predetermined interval in the horizontal direction of the transfer unit, so that each of the polymer clips A standby unit arranged; and a hook unit formed at a predetermined interval in the horizontal direction to correspond to a spacing of the standby unit along the horizontal direction of the front end of the draw bar, wherein the draw bar includes, and the connecting unit may include a first elastic member inserted into and disposed on an outer circumferential surface of the connection portion to elastically press the connection portion, and the extension portion may include a second elastic member inserted into and disposed on an outer circumferential surface of the extension portion so as to elastically press the extension portion. there is.

In addition, in another preferred embodiment of the surgical polymer clip launcher according to the present invention, the ligation unit of the surgical polymer clip launcher includes a bridge portion disposed inside one side of the round rod portion; a first clamping part having one side pivotably fastened around a clamping axis disposed at a front end of the bridge part to bind the polymer clip; and a second clamping part, one side of which is pivotably fastened to correspond to the first clamping part while facing each other around the clamping axis disposed at the front end of the bridge part to bind the polymer clip, wherein the first clamping part includes, The part includes a guide groove formed through the center of the front end of the first clamping part to fix and support the upper front end of the polymer clip, and the second clamping part includes a front end of the lower part of the polymer clip to prevent separation of the polymer clip. and a blocking portion extending vertically upward along the side surface and the front surface of the second clamping portion to support the side surface.

The surgical polymer clip launching device according to the present invention automatically loads the polymer clip by moving it to the firing position by pneumatic pressure with only one manipulation of the handle unit, and ligating the polymer clip by the ligation unit while the polymer clip is loaded. It has the effect of maximizing reliability and satisfaction by improving the stability and accuracy of launch.

In addition, in the surgical polymer clip launcher according to the present invention, the clip stored in the transfer unit of the shaft unit is automatically loaded into the launch position of the ligation unit by air pressure, thereby increasing the stability and accuracy of clip launch without depending on the skill of the doctor. According to this, there is an effect of promoting the convenience of the user, the doctor, shortening the operation time to promote the rapid recovery of the patient, and maximizing the satisfaction of the patient by preventing medical accidents in advance.

Moreover, the surgical polymer clip launcher according to the present invention is a polymer clip that is detachably coupled to one side of the handle unit to be selectively replaced when the use of a titanium clip is required in addition to the polymer clip that is launched through the shaft unit and the ligation unit. The shaft unit is quickly and easily replaced with only the titanium clip shaft unit, and the handle unit is commonly used regardless of the type of titanium clip and polymer clip, titanium clip shaft unit and polymer clip shaft unit, and the clip is exhausted or the air pressure is exhausted. In this case, it is possible to use the handle unit repeatedly by simply and quickly replacing only the polymer clip shaft unit or the pneumatic tank, thereby reducing surgical costs and preventing resource waste.

In addition, the surgical polymer clip launcher according to the present invention produces each part individually in a modular form and is easily detachable and assembled to improve assembly and productivity, thereby reducing manufacturing cost and manufacturing time, and through compactness. By promoting the convenience of storage and transportation, ultimately reducing the manufacturing cost of the surgical clip launcher, maximizing consumer satisfaction, expanding medical benefits, and reducing the burden of medical insurance, improving national stability and increasing exports. There is an effect.

1 shows a perspective view of a surgical polymer clip launcher according to an embodiment of the present invention in a state in which a polymer clip shaft unit is mounted.
FIG. 2 shows a cross-sectional view along line AA of FIG. 1 .
3 and 4 show a cross-sectional view of an operating state in which a clip of a polymer surgical clip launcher according to an embodiment of the present invention is ligated.
5 and 6 show cross-sectional views of an operating state in which a clip of a polymer surgical clip launcher according to an embodiment of the present invention is loaded.
Figure 7 shows an exploded perspective view of the shaft unit of the surgical polymer clip launcher according to an embodiment of the present invention.
8 shows an exploded perspective view of a ligation unit of a polymer surgical clip launcher according to an embodiment of the present invention.
9 shows a conceptual diagram according to a partial expansion of a surgical polymer clip launcher according to an embodiment of the present invention.
10 shows a perspective view of a handle unit of a polymer surgical clip launcher according to an embodiment of the present invention.
FIG. 11 is a cross-sectional view taken along line CC of FIG. 10 .
FIG. 12 is a cross-sectional view taken along line CC of FIG. 10 in a state in which the pneumatic supply unit of the handle unit shown in FIG. 10 is fully opened.
13 to 15 show conceptual diagrams for explaining an operating principle of loading and ligating a polymer clip through manipulation of a handle unit of a surgical polymer clip launcher according to an embodiment of the present invention.

Hereinafter, a surgical polymer clip launcher according to an embodiment of the present invention will be described in detail with reference to drawings. The embodiments introduced below are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention may be embodied in other forms without being limited to the embodiments described below. And, in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numbers indicate like elements throughout the specification.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and the common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of explanation.

Terms used in this specification are for describing embodiments, and therefore are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprise" and/or "comprising" means that a stated component, step, operation, and/or element is the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions.

1 shows a perspective view of a polymer clip launcher for surgery according to an embodiment of the present invention in a state in which a polymer clip shaft unit is mounted, and FIG. 2 shows a cross-sectional view taken along line A-A in FIG. 3 and 4 show a cross-sectional view of an operating state in which a clip of a polymer surgical clip launcher according to an embodiment of the present invention is ligated. 5 and 6 show cross-sectional views of an operating state in which a clip of a polymer surgical clip launcher according to an embodiment of the present invention is loaded. Figure 7 shows an exploded perspective view of the shaft unit of the surgical polymer clip launcher according to an embodiment of the present invention. 8 shows an exploded perspective view of a ligation unit of a polymer surgical clip launcher according to an embodiment of the present invention. 9 shows a conceptual diagram according to a partial expansion of a surgical polymer clip launcher according to an embodiment of the present invention. 10 shows a perspective view of a handle unit of a polymer surgical clip launcher according to an embodiment of the present invention. FIG. 11 is a cross-sectional view taken along line C-C in FIG. 10 . FIG. 12 is a cross-sectional view taken along line C-C of FIG. 10 in a state in which the pneumatic supply unit of the handle unit shown in FIG. 10 is fully opened. 13 to 15 show conceptual diagrams for explaining an operating principle of loading and ligating a polymer clip through manipulation of a handle unit of a surgical polymer clip launcher according to an embodiment of the present invention.

The definitions of terms used below are as follows. "One side" means the left side of each component member in FIGS. 1 to 15, and "the other side" means the opposite side of one side of the same member, that is, the right side of each member in FIGS. 1 to 15 . In addition, "one end" means the upper part of each component member in FIGS. 1 to 15, and "other end" means the opposite part of one end of the same member, that is, the lower part of each member in FIGS. 1 to 15 do. If, unlike FIGS. 1 to 15 , when the handle unit is located on the left side, definitions of one side and the other side are applied opposite to each other. "Horizontal direction" means a horizontal direction in the same member, that is, a direction from right to left or left to right in FIGS. 1 to 15, and "vertical direction" means a direction perpendicular to the horizontal direction and a vertical direction in the same member, that is 1 to 15, it means a height direction from bottom to top or from top to bottom. In addition, upward (upper) means an upward direction in the "vertical direction", that is, a direction upward in FIGS. 1 to 15, and downward (lower) means a downward direction in the "vertical direction", that is, in FIGS. 1 to 15 means downward direction. In addition, the inside (inside) refers to the inside of the same member included in the boundary surface of the same member to the side relatively close to the center, that is, the inside of each part shown in FIGS. farthest from the same member or individual part, outside.

A surgical titanium clip launcher 1 according to the present invention will be described with reference to FIGS. 1 to 15 . 1 to 15, the surgical titanium clip launcher 1 according to the present invention includes a handle unit 1000, a shaft unit 2000, a ligation unit 3000, and a cartridge unit 4000. do.

The handle unit 1000 performs a function of loading the polymer clip 4200 by air pressure and ligating a blood vessel or tubular tissue with the polymer clip 4200 .

The shaft unit 2200 is selectively detachably installed on one side of the handle unit.

The ligation unit 3000 is formed on one side of the shaft unit to ligate the polymer clip. That is, the polymer clip is ligated to the blood vessel or tubular tissue with only one operation of the trigger unit of the lever unit of the handle unit. Specifically, the ligation unit 3000 is a clip through the operation of a part (clamping unit) such as a pair of jaws that operate so as to close or open each other while facing each other by manipulation of the trigger unit. It performs the function of firing while binding to the tubular tissue. The titanium clip is loaded by moving to the firing position of the ligation unit by the pneumatic pressure of the pneumatic tank of the pneumatic supply part of the handle unit.

In addition, the surgical polymer clip launcher according to the present invention replaces the titanium clip shaft unit coupled to one side of the handle unit with a titanium clip shaft unit when the titanium clip needs to be used while the polymer clip is in use, and the handle unit use in common

That is, in order to fire the polymer clips through the ligation unit 3200, particularly the polymer clip ligation unit 3200, a plurality of polymer clips 4200 are sequentially launched into the standby unit 2221 of the transfer unit 2220 of the shaft unit. The polymer clip shaft unit 2200 disposed along the horizontal direction of the transfer unit is detachably mounted to the handle unit 1000 so as to be replaceable and used. If the use of a titanium clip is necessary, the user can use a ligation unit, in particular, a cartridge unit for storing a plurality of titanium clips when the titanium clip is fired through the titanium clip ligation unit is formed on one side of the shaft portion of the titanium clip shaft unit adjacent to the ligation unit The titanium clip shaft unit, which is detachably coupled to the receiving part, is used by attaching it to the handle unit so that it can be replaced.

As shown in FIGS. 1 and 2, a polymer clip shaft unit 2200 is selectively detachably installed on one side of the handle unit in order to ligate blood vessels or tubular tissues with the polymer clip 4200 among the clips through the handle unit. The polymer clip 4200 is loaded into the polymer clip ligation unit 3200 formed on one side of the polymer clip shaft unit 2200 and ligated to a blood vessel or tubular tissue by manipulating a trigger unit.

In addition, when the polymer clip shaft unit is attached to one side of the handle unit and used to ligate blood vessels or tubular tissues with the polymer clip ligation unit 3200, a plurality of polymer clips 4200 are stored in the cartridge unit. Instead, they are arranged in a line along the horizontal direction of the polymer clip shaft unit so that they can be sequentially fired into the interior of the polymer clip shaft unit 2200, in particular, the standby unit 2221 of the transfer unit 2220, and these plurality of polymer clips 4200 ) The polymer clip shaft unit 2200 capable of storing and firing the polymer clip shaft unit 2200 penetrates the hollow part 1211 of the control unit 1200 of the handle unit to be replaced on one side of the handle unit 1000. The other side of is inserted and installed.

A plurality of polymer clips are arranged inside the shaft unit to be spaced apart at regular intervals along the horizontal direction of the shaft unit so as to be sequentially launched.

Specifically, as illustrated in FIGS. 1 and 2 , when the polymer clip 4200 is used, the polymer clip shaft unit 2200 is selectively detachably installed on one side of the handle unit 1000 so that the polymer clip is a polymer clip. It is loaded into the polymer clip ligation unit 3200 formed on one side of the shaft unit and ligated to a blood vessel or tubular tissue by manipulating a trigger unit. In addition, when the use of a polymer clip is required through a ligation unit, especially a polymer clip ligation unit, a plurality of polymer clips are not stored in a cartridge unit like a titanium clip, but sequentially inside the polymer clip shaft unit, especially in the standby part of the transfer unit. The polymer clip shaft unit, which is arranged in a line along the horizontal direction of the polymer shaft unit so that it can be fired, and can store and fire a plurality of polymer clips, can be replaced on one side of the handle unit by penetrating the hollow part of the handle unit. The other side of the polymer clip shaft unit is inserted and installed so as to do so.

Although not shown in the drawing, the clip fired through the ligation unit, particularly the titanium clip ligation unit, the titanium clip is stored in the cartridge unit, and the cartridge unit for storing the plurality of titanium clips is replaced in the receiving part of the shaft part. The other side of the titanium clip shaft unit is inserted and installed so that the titanium clip shaft unit, which is detachably installed and can store and fire the titanium clip, penetrates the hollow part of the control part of the handle unit and replaces it on one side of the handle unit.

Therefore, the surgical polymer clip launcher according to the present invention is a polymer clip that is detachably coupled to one side of the handle unit to be selectively replaced when the use of a titanium clip is required in addition to the polymer clip that is launched through the shaft unit and the ligation unit. The shaft unit is quickly and easily replaced with only the titanium clip shaft unit, and the handle unit is commonly used regardless of the type of titanium clip and polymer clip, titanium clip shaft unit and polymer clip shaft unit, and the polymer clip is exhausted or the air pressure is exhausted. In this case, the handle unit can be used repeatedly by simply and quickly replacing only the polymer clip shaft unit or the pneumatic tank, thereby reducing surgical costs and preventing resource waste.

1 to 9, the shaft unit 2000 of the surgical polymer clip launcher 1 according to the present invention, particularly the polymer clip shaft unit 2200, includes a round bar 2210, a transfer unit 2220, drawbar 2230, connection 2240, extension 2250, and/or extension 2260.

The round bar portion 2210 has a cavity in the center and extends in the horizontal direction, a ligation unit is disposed on one side, and the other side is inserted into and coupled to the control unit.

The transfer unit 2220 is inserted and disposed inside the round bar unit, and a plurality of polymer clips are disposed and stored at regular intervals along the horizontal direction. Specifically, as shown in FIGS. 2 to 9 , the transfer unit 2220 includes a waiting unit 2221 formed at a predetermined interval in the horizontal direction of the transfer unit and in which each polymer clip is arranged, and a plurality of polymer clips are arranged. It is stored and placed in the base. Although not necessarily limited thereto, the atmospheric part of the conveying part may be formed in various numbers as needed, from 2 to 20,

The draw bar 2230 extends in the horizontal direction and is inserted and disposed adjacent to the transfer unit inside the round bar to load the polymer clip stored in the transfer unit to the ligation unit. In addition, as shown in FIG. 7 , the draw bar 2230 includes hook parts 2231 spaced apart at regular intervals in the horizontal direction to correspond to the separation interval of the waiting unit along the horizontal direction of the front end of the draw bar.

One side of the connection part 2240 is connected to the draw bar to move the draw bar forward. That is, the connection part is disposed on the other side of the round bar part on the same line as the draw bar. In addition, as shown in FIG. 7 , the connection part 2240 includes a first elastic member 2241 inserted into the outer circumferential surface of the connection part to elastically press the connection part. When the pneumatic pressure supplied from the pneumatic tank by the first elastic member of the connecting portion loads the polymer clip and is discharged to the outside, the connecting portion is moved backward by the elastic force of the first elastic member.

One side of the expansion unit 2250 is fastened to the connection unit and the other side contacts the sliding unit to forwardly move the connection unit according to the forward movement of the moving unit. That is, the extension part is disposed adjacent to the slide part on the other side of the round bar part on the same line as the connection part and the draw bar. In addition, as shown in FIG. 7 , the expansion unit includes a second elastic member 2251 inserted into an outer circumferential surface of the expansion unit to elastically press the expansion unit. When the air pressure supplied from the pneumatic tank by the second elastic member of the expansion unit loads the polymer clip and is discharged to the outside, the expansion unit moves backward along with the connection unit by the elastic force of the second elastic member. In addition, the rod part moves forward by the air pressure supplied from the pneumatic tank, the moving part moves forward according to the forward movement of the rod part, the extension part moves forward according to the forward movement of the moving part, and the connection part moves forward by the forward movement of the extension part, The draw bar moves forward by the forward movement of the connection part, and the hook part integrally formed on one side of the draw bar moves forward by the same amount as the forward movement amount of the draw bar while moving the standby part of the transfer unit forward to polymer clip. to load

The holder part 2260 is detachably coupled to the outer circumferential surface of one side of the round bar part, and inserts and fastens the shaft unit into the hollow part of the adjusting part and supports it. After the shaft unit is detached from the handle unit by the holder part, the shaft unit is prevented from being separated while the shaft unit is in use, thereby improving safety and reliability and preventing foreign substances from entering the handle unit.

As such, the surgical polymer clip launcher according to the present invention produces each part individually in a modular form and is easily detachable and assembled to improve assembly and productivity, thereby reducing manufacturing cost and manufacturing time, and through compaction. By promoting the convenience of storage and transportation, ultimately reducing the manufacturing cost of the surgical clip launcher, maximizing consumer satisfaction, expanding medical benefits, and reducing the burden of medical insurance, improving national stability and increasing exports. there is.

1 to 9, the polymer clip ligating unit 3200 of the polymer clip launcher for surgery according to the present invention includes a bridge part 3210, a first clamping part 3220, and a second clamping part. (3230).

The ligation unit is installed on one side of the round bar.

The bridge part 3210 is disposed inside one side of the round bar part. That is, the bridge portion is formed to have a constant length in the horizontal direction and is inserted into one side of the round bar portion.

One side of the first clamping part is pivotally fastened around a clamping axis disposed at the front end of the bridge part to bind one end of the polymer clip by pressing, and the second clamping part has one side of the second clamping part attached to the front end of the bridge part. 1 The first clamping part is pivotally fastened so as to face and correspond to each other around a clamping axis arranged to face the clamping part in the vertical direction, and the other end of the polymer clip is pressed and bound.

That is, the first clamping part and the second clamping part are centered on the clamping axis arranged to face each other in the vertical direction of the bridge part as the round bar part moves forward in conjunction with the forward movement of the slide part while the protrusion part rotates by the pivoting action of the trigger part. By pivoting the first clamping part and the second clamping part in opposite directions to press one end and the other end of the polymer clip to each other, the polymer clip is closed and the polymer clip is ligated to the blood vessel or tubular tissue.

As such, the surgical polymer clip launching device according to the present invention automatically loads the polymer clip by moving it to the firing position by air pressure with only one manipulation of the handle unit, and ligating is performed by the ligation unit while the polymer clip is loaded. As a result, reliability and satisfaction are maximized by improving the stability and accuracy of clip firing, the convenience of the user, the doctor, is promoted, the patient's quick recovery is promoted by shortening the operation time, and the patient's satisfaction is increased by preventing medical accidents in advance. can be maximized.

In addition, as shown in FIG. 9, the first clamping part 3220 of the ligation unit 3200 of the polymer clip launcher for surgery according to the present invention fixes and supports the upper end of the polymer clip at the center of the front end of the first clamping part. It includes a guide groove 3221 formed through, and the second clamping part 3230 supports the front end and side of the bottom of the polymer clip to prevent the polymer clip from coming off in a vertical direction along the side and front of the second clamping part. It includes a blocking portion (3231) extending upward. The guide groove and the blocking portion allow the polymer clip to be loaded to the correct firing position, prevent separation before launching for ligation, and block unnecessary doctor's motion in advance. It reduces the fatigue of the surgeon, prevents waste of the polymer clip, and ligatures the polymer clip in the correct position.

In addition, as shown in FIGS. 10 to 15, the handle unit 1000 of the surgical polymer clip launcher 1 according to an embodiment of the present invention includes a housing part 1100, a control part 1200, and a pneumatic supply part. 1300, a lever part 1400, and an operating part 1500.

The housing part 1100 includes a horizontal part 1110 extending in a horizontal direction and a gripping part 1120 extending in a vertical direction below the horizontal part. That is, the housing part 1100 forms the outer shape of the medical polymer clip launcher. Although not necessarily limited thereto, the housing part 1100 is formed in a gun shape as a whole, maintains the strength of the lever part, the operating part, the control part, and the pneumatic supply part of the handle unit 1000, and the manufacturing cost and manufacturing time In order to save, the horizontal part and the gripping part may be integrally formed. Also, the housing portion may be formed of a metal or plastic material. The housing portion serves as a handle for a user, a doctor or a medical person, to hold and manipulate the surgical polymer clip launcher during surgery.

The adjusting unit 1200 is detachably coupled to one side of the horizontal part, and a part of the shaft unit is interpolated. That is, the user, the doctor, can rotate the operating unit clockwise or counterclockwise, and accordingly, the shaft unit is interlocked with the operating unit to rotate in the same clockwise or counterclockwise direction, and finally formed on one side of the shaft unit As the ligation unit rotates in the same clockwise or counterclockwise direction as the rotation direction of the control unit in conjunction with the shaft unit, the user can easily manipulate and change the firing position of the clip.

The adjusting part 1200 includes a coupling part 1210 disposed at the front end of the gripping part and a hollow part 1211 formed through the inside of the coupling part, and the polymer clip shaft unit is detachable from the handle unit through the hollow part. are tightly coupled

The pneumatic supply unit 1300 is tiltably installed on the gripping unit to supply pneumatic pressure for loading the polymer clip. That is, as shown in FIGS. 10 to 15 , the pneumatic supply unit 1300 includes a cover unit 1310, a pivot unit 1320, a storage unit 1330, and a pneumatic tank 1340.

The cover part 1310 is tiltably coupled to the gripping part based on the tilting axis 1311 disposed at the other end of the gripping part.

The pivoting part 1320 is pivotably coupled to the cover part 1310 based on a pivoting shaft 1321 disposed in a part of the cover part and turns in conjunction with the cover part.

The storage part 1330 is rotatably coupled to the turning part 1320 based on the pivot shaft 1331 disposed at one end of the turning part and rotates in conjunction with the turning part.

A pneumatic tank 1340 is detachably inserted into the storage unit 1330.

In this way, according to the tilting operation of the cover part, the pivoting part and the storage part rotate in conjunction with the tilting of the cover part based on the pivot axis and the pivot axis, respectively. As the storage part turns, it facilitates the replacement of the pneumatic tank and reduces the replacement time of the pneumatic tank. Accordingly, the operation time can be reduced to improve the convenience of the doctor, reduce fatigue, and facilitate the patient's recovery, thereby maximizing satisfaction between the patient and the doctor.

In addition, the polymer clip is loaded by moving to the ligation site of the ligation unit by air pressure supplied from the pneumatic tank by manipulating the trigger unit. That is, the pneumatic tank 1340 is stored in the storage part of the pneumatic supply unit of the handle unit and stores pneumatic power, which is power to automatically move the clip by moving the clip to the firing position of the ligation unit through the operation of the trigger unit. Although not necessarily limited thereto, the pneumatic tank is filled with CO2 gas, and the capacity of the pneumatic gas filled in the pneumatic tank can be formed in various ways according to the number of times the clip is loaded. That is, the CO2 capacity filled in the pneumatic tank can be filled with 5 loadings, 10 loadings, 12 loadings, 15 loadings, and 20 loadings of the clip. In addition, when all the air pressure in these pneumatic tanks is used, only the pneumatic tanks can be easily replaced and used, and the recovered pneumatic tanks can be reused through refilling and disinfection of the CO2 gas charged inside, preventing resource waste and manufacturing It can reduce cost and maintenance cost, promote miniaturization, and speed up surgery to shorten the patient's recovery time and maximize the convenience of doctors.

The lever part 1400 has a trigger part 1410 installed to be able to pivot on the gripping part, and loads the polymer clip according to the pivoting motion of the trigger part and operates the ligation unit to ligate the titanium clip or the polymer clip.

The operating unit 1500 is installed inside the horizontal unit and operates in conjunction with the lever unit. As shown in FIGS. 10 to 15, the surgical polymer clip launcher according to the present invention is clipped by pneumatic as the lever and the operation unit operate in conjunction with only one manipulation of the user, the doctor, turning the trigger unit of the lever unit. The ligation unit is loaded into the firing position, and after loading, it is ligated to a blood vessel or tubular tissue.

Lee Chi-rum, the surgical polymer clip launcher according to the present invention automatically loads the polymer clip by moving it to the firing position by air pressure with only one manipulation of the handle unit, and the ligation is performed by the ligation unit while the polymer clip is loaded. Depending on the type of clip, reliability and satisfaction can be maximized by improving the stability and accuracy of clip firing.

10 to 15, the lever unit 1400 of the handle unit 1000 of the surgical polymer clip launcher 1 according to the present invention includes a trigger unit 1410, a driving unit 1420, an actuator unit ( 1430), a transmission unit 1440, and a fixing unit 1450.

The trigger unit 1410 extends vertically downward on one side of the gripping unit 1120 of the housing unit and is pivotally coupled to a portion of the gripping unit so that the trigger unit rotates when the doctor pulls the trigger unit. In addition, the trigger unit 1410 includes a concave groove 1441 that is recessed and formed at an upper end of the trigger unit in a vertical direction. That is, when the trigger part 1441 turns by the doctor's pulling motion, the protrusion 1543 of the slide part inserted into the concave groove operates in conjunction with the slide part, so that the slide part moves forward, and in conjunction with this, the round bar of the polymer shaft unit ( 2210) moves forward to operate the polymer clip ligating unit to ligate the clip.

The driving part 1420 is installed adjacent to the trigger part inside the gripping part so as to turn in the opposite direction to the turning direction of the trigger part 1410 . As shown in FIGS. 10 to 15 , the driving unit 1420 includes a main body 1421 , a first leg unit 1423 , a second leg unit 1425 , and a ring unit 1424 . The drive unit is formed in an L-shape as a whole.

A driving shaft 1422 is disposed at the center of the body portion 1421, and the body portion 1421 rotates in a direction opposite to the turning direction of the trigger unit 1410 based on the driving shaft.

The first leg part 1423 extends in the horizontal direction from the top of the body part.

The second leg part 1425 extends vertically from the lower part of the body part.

The ring part 1424 extends vertically downward from the front end of the first leg part and is selectively fixedly coupled to the locking jaw part 1433 of the actuator part to be described later.

The actuator part 1430 is installed adjacent to the driving part inside the gripping part so as to turn in the opposite direction to the turning direction of the driving part 1420 . As shown in FIGS. 10 to 15 , the actuator part 1430 includes a body part 1431 , a locking jaw part 1433 , and a guide part 1434 .

A rotating shaft 1432 is formed at a part of the body portion 1431, and the body portion 1431 turns in a direction opposite to the turning direction of the drive unit based on the rotating shaft.

The locking jaw portion 1433 is recessed vertically downward from the top of the body portion so as to be selectively and fixedly coupled to the hook portion 1424 according to the turning direction of the actuator portion.

The guide part 1434 protrudes adjacent to the delivery part to have a predetermined curvature at the upper end of the body part in the vertical direction. That is, the guide part 1434 has a guide surface having a predetermined curvature, and the cam follower part 1443 slides along the guide surface so that the transmission part moves up or down according to the turning direction of the actuator part.

The delivery unit 1440 is installed inside the horizontal unit in a state in which the other side is fixedly coupled to a part of the horizontal unit 1110 so that one side of the actuator unit 1430 ascends or descends according to the turning direction of the actuator unit 1430 . As shown in FIGS. 10 to 15 , the transmission part 1440 includes a body part 1441 , a cam follower part 1443 , and a pressing part 1444 .

The body portion 1441 has a free end on one side and is fixed to a part of the horizontal portion on the other side to extend in the horizontal direction. That is, as the other side of the body part is fixed to the horizontal part and one side is formed as a free end, the body part moves up and down based on the coupling shaft 1442 according to the sliding motion between the cam follower part and the guide part.

The cam palau part 1443 is formed on one side of the body part to have a curvature corresponding to that of the guide part, and slides along the guide surface 1435 of the guide part.

The pressing part 1444 protrudes from the center of the side of the body toward the fixing part, and when one side of the body part descends, the pressing part presses down the stepped part of the fixing part to lower the fixing part, thereby lowering the stopper part 1453. The air pressure supplied from the pneumatic tank released from the unit 1532 is supplied through the flow path unit, and the rod unit 1533 moves forward.

The fixing part 1450 is installed adjacent to the transmission part inside the horizontal part in a state in which the other side is fixedly coupled to a part of the horizontal part 1110 so that one side rises or falls in conjunction with the transmission part 1440. As shown in FIGS. 10 to 15 , the fixing part 1450 includes a support part 1451 , a stopper part 1453 , and a stepped part 1454 .

The support part 1451 has one side free end and the other side is fixed to a part of the horizontal part and extends in the horizontal direction, and is formed parallel to the body part and adjacent to the body part. That is, as the support part 1451 has the other side fixed to the horizontal part and one side formed adjacent to the body part as a free end, the support part 1451 moves up and down with respect to the fixed shaft 1452 in conjunction with the lifting operation of the body part by the pressing part. . When the support part descends, the stopper part is separated from the fastening part and the passage part is opened so that the rod part moves forward by the air pressure supplied from the pneumatic tank. According to the forward movement of the loading unit, the draw bar is forwardly moved to automatically load the clip to the firing position.

The stopper part 1452 extends upward in the vertical direction from one end of the support part and is inserted into the fastening part to suppress the forward movement of the rod part.

The stepped portion 1454 is formed in an open portion 1455 penetrating the center of the support portion so as to correspond to the pressing portion so that the supporting portion ascends or descends in conjunction with the elevation or descent of the body portion, so that the pressing portion is in close contact with the opening portion 1455 .

As such, the driving unit rotates in a direction opposite to the swinging direction of the trigger unit in conjunction with the swinging operation of the trigger unit, and the actuator unit rotates in a direction opposite to the swinging direction of the driving unit in conjunction with the swinging operation of the driving unit. One side of the transmission part descends in conjunction with the turning motion of the actuator part, and as the fixing part descends in conjunction with the descent of one side of the transmission part, the air pressure supplied from the pneumatic tank is transmitted to the operating part, and the operating part moves the draw bar of the polymer clip shaft unit forward. The polymer clip stored in the standby part of the transfer unit is loaded into the firing position of the ligation unit.

10 to 15, the operating unit 1500 of the handle unit 1000 of the surgical polymer clip launcher 1 according to the present invention includes a base unit 1510, a flow path unit 1520, and a loading unit. 1530, and a sliding part 1540.

The base part 1510 has a joint part 1511 coupled in communication with the pneumatic tank while linearly reciprocating inside, and is fixedly installed on the other side of the inside of the horizontal part.

One side of the flow path part 1520 communicates with the loading part and the other side communicates with the base part to transfer the air pressure discharged from the pneumatic tank to the loading part. That is, in the passage part 1520, the nozzle of the passage part is opened by the loading part by an operation of turning the trigger part by the doctor, and accordingly, the air pressure discharged from the pneumatic tank is transferred to the loading part through the passage part. In addition, in order to facilitate replacement of the pneumatic tank, the pneumatic tank and the foundation communicate with each other through the link and the pivot structure with the cover, pivot, and storage, and the flow path is horizontal to the housing so that the flow path is arranged in communication with the base. As the penetrating part is formed obliquely downward in the vertical direction on the other side of the inside of the part, the size of the horizontal part of the housing part is minimized and the pneumatic supply part turning part and the storage part are placed at the optimal position to promote compactness of the housing part and reduce manufacturing cost while increasing rigidity. It is possible to maintain rigidity and improve stability, accuracy, and reliability while maintaining compactness of the surgical polymer clip launcher.

The loading part 1530 is disposed adjacent to the base part on the other side of the inside of the horizontal part and serves to load the polymer clip according to the elevating movement of the stopper part. As shown in FIGS. 10 to 15 , the loading part 1530 includes a casing part 1531 , a fastening part 1532 , a rod part 1533 , and an elastic part 1534 .

The casing portion 1531 is formed in a cylindrical shape with a cavity formed therein. The casing portion forms the outline of the loading portion.

The fastening part 1532 is recessed and formed in the lower part of the casing part to correspond to the stopper part, and the stopper part is inserted and fastened.

The rod part 1533 moves forward and backward in the horizontal direction inside the casing part by the air pressure supplied from the pneumatic tank through the passage part.

The elastic part 1534 elastically presses the rod part to come into contact with one side of the flow path part inside the casing part. That is, the rod part 1533 is always arranged to move backward inside the casing part by the elastic part 1534. When the stopper part is separated from the fastening part through the manipulation of the trigger part, the load is supplied by the pneumatic pressure supplied from the pneumatic tank. When the part moves forward and the air pressure is discharged to the outside through the ligation unit, etc., it moves backward by the elastic part and returns to its original position, so that the stopper part is automatically inserted into the fastening part. That is, the loading part can be configured simply and compactly by the elastic part.

The sliding part 1540 moves forward and backward inside the horizontal part to ligate the polymer clip according to the turning motion of the trigger part at one side of the inside of the horizontal part. As shown in FIGS. 10 to 15 , the slide part 1540 includes a base part 1541 , a moving part 1542 , and a protrusion part 1543 .

The base portion 1541 extends in the horizontal direction such that one side contacts the shaft unit and the other side is coupled to the loading unit. That is, the base part forms the outer shape of the slide part and is formed in a cylindrical shape with a cavity formed therein.

The moving part 1542 is installed inside the base part to be able to linearly reciprocate in the horizontal direction by interlocking with the rod part. That is, as the rod part moves forward, the moving part moves forward, the extension part in contact with the moving part moves forward in conjunction, the connection part in contact with the extension part moves forward in conjunction with it, and finally the draw bar in contact with the connection part moves forward in conjunction with it. As it moves, the clip is loaded to the firing position of the ligation unit.

The protrusion 1543 protrudes from the bottom of the base to correspond to the concave groove and moves the base (slide) forward or backward according to the turning direction of the trigger. That is, as the protrusion 1543 is inserted into the concave groove and fastened, the protrusion rotates in conjunction with the trigger unit according to the turning direction of the trigger unit, and the turning motion of the protrusion is changed to a linear movement to move the slide unit forward and backward. The base part is moved forward and backward by the forward and backward motion of the sliding part. According to the forward and backward movement of the base portion, the round bar portion is interlocked with the base portion to move forward and backward, thereby operating the ligation unit to ligate the clip.

Therefore, the surgical polymer clip launcher according to the present invention produces each part individually in a modular form and is easily detachable and assembled to improve assembly and productivity, thereby reducing manufacturing cost and manufacturing time, and through compactness. By promoting the convenience of storage and transportation, ultimately reducing the manufacturing cost of the surgical clip launcher, maximizing consumer satisfaction, expanding medical benefits, and reducing the burden of medical insurance, improving national stability and increasing exports. there is.

With reference to FIGS. 3 to 6 and 10 to 15, the polymer clip is automatically loaded by moving the polymer clip to the firing position by air pressure with only one manipulation of the handle unit of the surgical polymer clip launcher 1 according to the present invention, and , the operation principle in which ligation is performed by the ligation unit in the loading state of the polymer clip and the operation principle of installing or replacing the pneumatic tank are explained.

First, in order to automatically load the clip using pneumatic pressure, a pneumatic tank must be newly installed in the storage part of the pneumatic supply unit or the pneumatic tank from which all air pressure is exhausted must be replaced. As shown in Figures 3 to 6 and 10 to 15, the operating principle for opening the storage unit of the pneumatic supply unit will be described. In order to open the storage part of the pneumatic supply unit, as shown in FIG. 11, if the cover part is in contact with the gripping part and the cover part is held in a completely closed state and tilted clockwise in FIG. 11, the cover part is tilted clockwise with respect to the tilting axis as shown in FIG. do. As shown in FIG. 12 , when the cover unit is tilted clockwise with respect to the tilting axis, the rotation unit rotates counterclockwise around the rotation axis in conjunction with the cover unit around a rotation axis disposed on a part of the cover unit. At the same time, the storage unit is naturally exposed to the outside as the storage unit rotates in a clockwise direction based on the rotation axis in conjunction with the rotation axis based on the rotation axis disposed at one end of the rotation unit. At this time, the user may remove the pneumatic tank already installed in the storage unit and replace it with a new pneumatic tank, or newly install a new pneumatic tank in the empty storage unit where nothing is mounted. Then, when the user grabs the cover and tilts it in a counterclockwise direction, it operates in the opposite way as described above, so that the storage part is seated inside the holding part, and finally, the cover part comes into contact with the holding part to close the pneumatic supply part in a closed state.

3 to 6 and 13 to 15 on the premise that the pneumatic tank is mounted in the storage unit, the operating principle for automatic loading and ligation of the clip will be described. As shown in FIGS. 5 to 6 and 13 to 15, the air pressure of the pneumatic tank is transferred to the flow path part in a state in which the pneumatic tank is mounted on the storage part and coupled to the joint part of the base part. However, at this time, as the rod part of the loading part is elastically pressed to the other side of the horizontal part by the elastic part, one side of the passage part is closed to block the supply of air pressure, and the stopper part of the fixing part is inserted and fastened to the fastening part of the casing part, so that the pneumatic pressure of the rod part The state in which the forward movement of the rod part is suppressed is basically maintained.

Thereafter, when the user turns the trigger unit in one direction, the main body of the drive unit rotates in the opposite direction to the trigger unit around the driving shaft, and the first leg unit and the ring unit formed at the front end of the first leg unit are interlocked with the body unit and the main body unit. will turn in the same direction. At the same time, the body of the actuator rotates in the opposite direction to the body about the axis of rotation, and the locking jaw formed at the upper end of the body also rotates in the same direction as the body. That is, the ring portion and the locking jaw portion are rotated in opposite directions so as to come closer to each other, and the ring portion is inserted into and fastened to the locking jaw portion. Simultaneously with this operation, as the body part rotates in the opposite direction to the body part about the rotation axis, the guide part formed on the upper part of the body part also turns in the same direction as the body part. As the guide part turns, the cam follower part formed on one side of the body part of the transmission part descends along the guide surface of the guide part, and the pressing part descends in conjunction with the descending of the cam follower part. As the pressing part descends, the stepped part of the fixing part in contact with the pressing part descends, and the support part descends in conjunction with the stepped part according to the descending of the stepped part. Air pressure supplied from the pneumatic tank moves the rod unit forward along the passage unit. According to the forward movement of the rod part, the moving part moves forward in conjunction with the rod part, and the extension part and the extension part move forward according to the forward movement of the moving part, and finally, the draw bar moves forward to automatically load the clip to the firing position. Afterwards, the original position is reversed from the above as the expansion part and the connection part move backward by the elastic force of the coil springs of the first elastic member and the second elastic member installed in the connection part and the extension part, and finally the draw bar moves backward. According to the operating principle, it is returned to its original position.

In addition, as shown in Figs. 3 to 4 and 10 to 15, when the trigger part is turned, the protrusion that is primarily inserted into the concave groove of the trigger part is turned and the slide part moves the base part forward, so that the slide part moves the round bar The clip is ligated by rotating the ligation unit by moving forward. That is, when the round bar part advances, the first clamping part and the second clamping part pivotably coupled to the clamping shaft disposed to face each other in the vertical direction of the bridge part and the respective clamping shafts are rotated by pressing the first clamping part and the second clamping part. They rotate in opposite directions around the additional clamping axis. Accordingly, the first clamping unit presses one end of the polymer clip and the second clamping unit simultaneously presses the other end of the polymer clip toward the central axis in the horizontal direction, thereby ligating the polymer clip as shown in FIG. 4 . Thereafter, as the trigger unit swings back to its original position by the elastic member and the round bar moves backward to the first and second elastic members, the trigger automatically returns to its original position as described above, and this automatic loading is performed by the above-described operating principle. are performed sequentially.

As such, the surgical polymer clip launching device according to the present invention automatically loads the polymer clip by moving it to the firing position by air pressure with only one manipulation of the handle unit, and ligating is performed by the ligation unit while the polymer clip is loaded. Depending on the type of clip, reliability and satisfaction can be maximized by improving the stability and accuracy of clip firing.

The handle unit 1000 and the shaft unit 2200 of the surgical polymer clip launcher of the present invention may exhibit antifouling effects by forming a coating layer using a coating composition having excellent antifouling effect.

The coating composition is more specifically inorganic nanoparticles; silin compounds; Surfactants; bookbinder; dispersant; and a solvent.

The average diameter of the inorganic nanoparticles is 3 to 5 μm. As the inorganic powder having a small average diameter within the above range is used, even if the coating layer is formed, the touch may not be impaired.

The inorganic nanoparticles are selected from the group consisting of barium titanate, silica (SiO 2 ), titanate (TiO 2 ), and mixtures thereof, and are preferably barium titanate, but are not limited to the above examples.

Preferably, the silane compound is a compound represented by Formula 1 below:

[Formula 1]

Here, n is an integer from 1 to 100.

The silane compound includes a plurality of -OCF3 substituents, and a fluorine film is formed in the coating layer by the -OCF3 substituents, thereby increasing the antifouling effect.

In addition, since it contains an alkylene group having 1 to 100 carbon atoms as a linker, -OCF3 substituents can be placed on both sides of the ester group at a certain distance, preventing interference with inorganic nanoparticles in the coating layer. Accordingly, the antifouling effect can be further increased.

Preferably, the linker is an alkylene group having 5 to 10 carbon atoms, that is, n is an integer of 5 to 10, and when the coating layer is formed within the above range, a fluorine coating that can maximize the antifouling effect within the thickness range of the coating layer. formation is possible. When n is less than 5, there may be a problem that the antifouling effect is inhibited due to the interference effect between the inorganic nanoparticles and the -OCF3 substituent, and when n exceeds 10, the distance between the inorganic nanoparticles and the fluorine coating in the coating layer is reduced. Although it is possible to prevent the occurrence of the interference effect by moving away, there is a problem in that the antifouling effect due to the combination of the fluorine film and the inorganic nanoparticles is inferior.

The surfactant is a betaine-based surfactant, more specifically, an alkylbetaine-based, amide-betaine-based, sulfobetaine-based, hydroxysulfobetaine-based, amidosulfobetaine-based and phosphobetaine-based, imidazolinium-betaine-based It may be selected from the group consisting of, but is not limited to the above examples.

The binder is selected from the group consisting of acrylic binders, urethane-based binders, silicone-based binders, and mixtures thereof, more specifically a silicone-based binder, and more specifically selected from the group consisting of polydimethylsiloxane, polyhydrosiloxane, and mixtures thereof. However, it is not limited to the above example.

The dispersing agent may use a known component employed in the art as a dispersing agent for a carbon-based filler. More specifically, polyester-based dispersing agent, polyphenylene ether-based dispersing agent, polyolefin-based dispersing agent, acrylonitrile-butadiene-styrene copolymer dispersing agent, polyarylate-based dispersing agent, polyamide-based dispersing agent, polyamide-imide-based dispersing agent, polyarylsulfone-based dispersing agents, polyetherimide-based dispersing agents, polyethersulfone-based dispersing agents, polyphenylene sulfide-based dispersing agents, polyimide-based dispersing agents; Polyether ketone-based dispersing agent, polybenzoxazole-based dispersing agent, polyoxadiazole-based dispersing agent, polybenzothiazole-based dispersing agent, polybenzimidazole-based dispersing agent, polypyridine-based dispersing agent, polytriazole-based dispersing agent, polypyrrolidine-based dispersing agent, polydibenzofuran It may be selected from the group consisting of a polysulfone-based dispersing agent, a polyurea-based dispersing agent, a polyurethane-based dispersing agent, a polyphosphazene-based dispersing agent, and mixtures thereof, but is not limited to the above examples.

The solvent may be selected from the group consisting of water, alcohol solvents, halogen-containing hydrocarbon solvents, ketone solvents, cellosolve solvents and amide solvents, but is not limited to the above examples.

The coating composition may include inorganic nanoparticles; silane compounds; Surfactants; bookbinder; dispersant; and a solvent, preferably 5 to 20 parts by weight of inorganic nanoparticles based on 100 parts by weight of the solvent; 20 to 50 parts by weight of a silane compound; 10 to 20 parts by weight of a surfactant; 30 to 50 parts by weight of a binder; and 5 to 10 parts by weight of a dispersant. In the case of the above range, a synergistic effect of critical significance is expressed as a synergistic effect due to the interaction of each extract, and when it is out of the above range, the synergistic effect is rapidly reduced or almost absent.

The coating composition may include inorganic nanoparticles; silane compounds; Surfactants; bookbinder; dispersant; and a solvent are mixed and then stirred at 100 to 150 rpm. The prepared coating composition exhibits a viscosity of 1,500 to 2,000cps, and when forming a coating layer on the surface of a substrate within the above viscosity range, it is possible to maintain a constant shape, thereby facilitating coating using a known coating method.

[Preparation Example 1: Preparation of coating composition]

Barium titanate having an average diameter of 3 to 5 μm, a silane compound represented by Formula 1 below, an alkylbetaine-based surfactant, a polyhydrosiloxane binder, water, and a polyester-based dispersing agent were mixed at a speed of 100 rpm. After stirring for 10 to 30 minutes, a coating composition was prepared:

[Formula 1]

(Here, n is an integer of 10.)

All components constituting the coating composition were purchased and used in the preparation of the coating composition. A more specific composition of the coating composition is shown in [Table 1] below.

BB1 BB2 BB3 BB4 BB5 BB6 BB7 BB8 BB9 BB10 BB11 water 100 100 100 100 100 100 100 100 100 100 100 barium titanate One 5 10 15 20 25 15 15 15 15 15 silane compound 10 20 30 40 50 60 40 40 40 40 40 Surfactants 5 10 13 16 20 30 16 16 16 16 16 bookbinder 20 30 35 45 50 60 45 45 45 45 45 dispersant One 5 7 8 10 20 8 8 8 8 8

A 5×5 cm specimen was immersed in the coating composition of BB1 to BB11 and dried at 90 to 95° C. for 60 minutes to form a coating layer. [Experimental Example 1: Appearance evaluation] Prior to coating the specimens using the coating compositions of BB1 to BB11, the viscosity was measured using a Brookfield viscometer at 25° C., and after the coating layer was formed, the appearance was observed.

Evaluation was conducted according to the following evaluation criteria according to the case where the coating layer was formed flat on the surface of the substrate and the degree of curvature.

○: Formation of a flat coating layer

△: Formation of a coating layer in a partially curved shape

×: Formation of a coating layer in a curved shape in many parts

BB1 BB2 BB3 BB4 BB5 BB6 Viscosity (cps) 500 1,120 1,560 1,800 1,920 2,250 Appearance evaluation Х Х ○ ○ ○ △

As shown in [Table 2], as a result of forming a coating layer on the substrate and evaluating the appearance, the viscosity was measured differently according to the content range of the coating composition, and it was confirmed that a large difference was shown in whether or not a uniform coating layer was formed depending on the viscosity range. . [Experimental Example 2: Evaluation of contamination resistance] Specimens whose surfaces were coated with Experiment Nos. BB1 to BB6 were placed in a friction fastness tester (model name DL-2007), and contamination cloth (Test fabric, product name IEC carbon black/mineral oil, EMPA) was placed on the surface of the contaminated sample, rubbed back and forth 10 times, and visually compared with the contaminated sample to give a contamination grade as shown in Table 2 below.

The evaluation criteria are as follows.

◎: No visible contaminants

○: Contaminants are slightly visible or barely conspicuous

△: Slightly severe blood staining

×: Blood contamination is seen quite severely

BB1 BB2 BB3 BB4 BB5 BB6 stain resistance Х △ ◎ ◎ ○ △

Referring to [Table 3], it was confirmed that BB1 was significantly contaminated with blood. In the case of BB 2 and BB 6, blood contamination was slightly severe. On the other hand, in BB3 to BB5, no contaminants were visible or hardly conspicuous, confirming that they had excellent stain resistance. The detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention. Those skilled in the art or those skilled in the art can variously modify and change the present invention within the scope that does not depart from the spirit and technical scope of the present invention described in the claims to be described later. will be able to understand Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: Surgical Polymer Clip Launcher
1000: handle unit
1100: housing part
1200: control unit
1300: pneumatic supply unit
1400: lever part
1500: operation part
2000 : Shaft Unit
2200: Polymer clip shaft unit
2210: round bar
2220: transfer unit
2230: draw bar
2240: connection part
2250: extension
2260: holder part
3000: ligation unit
3200: polymer clip ligation unit
4000: clip
4200: polymer clip

Claims (5)

In the surgical polymer clip launcher for launching a polymer clip for ligation of blood vessels or tubular tissues,
a handle unit for loading the polymer clip by air pressure and ligating a blood vessel or tubular tissue with the polymer clip;
a shaft unit detachably installed on one side of the handle unit; and
A ligation unit formed on one side of the shaft unit to ligate the polymer clip;
A plurality of the polymer clips are disposed inside the shaft unit so as to be spaced apart at regular intervals along the horizontal direction of the shaft unit so that they can be fired sequentially,
The shaft unit,
a circular rod portion having a cavity in the center and extending in a horizontal direction, having the ligation unit disposed on one side and inserting and coupling the other side to the control unit;
a transfer unit inserted into the round bar unit and in which a plurality of the polymer clips are disposed and stored at regular intervals in a horizontal direction;
a draw bar that extends in the horizontal direction and is inserted into and disposed adjacent to the conveying part inside the round bar part to load the polymer clip stored in the conveying part into the ligation unit;
a connection part having one side connected to the draw bar to forward move the draw bar;
an expansion unit having one side fastened to the connection unit and the other side contacting the slide unit to forwardly move the connection unit according to the forward movement of the moving unit; and
A holder portion detachably coupled to an outer circumferential surface of one side of the round bar portion and fixing and supporting the shaft unit to the adjusting portion;
The transfer unit includes a standby unit formed at a predetermined interval in the horizontal direction of the transfer unit and arranged with each of the polymer clips,
The draw bar includes a hook part formed at a predetermined interval along the horizontal direction to correspond to the separation interval of the standby unit along the horizontal direction of the front end of the draw bar,
The connecting portion includes a first elastic member inserted into and disposed on an outer circumferential surface of the connecting portion to elastically press the connecting portion,
The expansion unit includes a second elastic member inserted into and disposed on an outer circumferential surface of the expansion unit to elastically press the expansion unit,
The ligation unit,
a bridge part disposed inside one side of the circular bar part;
a first clamping part having one side pivotably fastened around a clamping axis disposed at a front end of the bridge part to bind the polymer clip; and
A second clamping part, one side of which is pivotably fastened to correspond to the first clamping part while facing each other about the clamping axis disposed at the front end of the bridge part to bind the polymer clip,
The first clamping part includes a guide groove formed through the center of the front end of the first clamping part to fix and support the upper end of the polymer clip,
The second clamping part includes a blocking part extending vertically upward along the side surface and the front surface of the second clamping part to support the front end and side surface of the lower portion of the polymer clip to prevent the polymer clip from being separated. A surgical polymer clip launcher with a
delete delete delete delete

Images