KR102315685B1 - Automatic Polymer Clip Applier - Google Patents

Abstract

The present invention relates to a polymer clip ligator for ligating the blood vessel. The polymer clip ligator for ligating the blood vessel comprises: a handle assembly; a shaft part; and a jaw assembly. The shaft part is provided with a supply bar. The supply bar further includes a plurality of upper end-side push elastic pieces which are formed by cutting a bar plate above a linear guide groove by a predetermined length and at regular intervals and protrude to be included toward the inside of a cartridge such that the upper end-side push elastic pieces correspond to lower end-side push elastic pieces. A head part further includes a clip counter part for displaying the number of clips through a display window. Polymer clips can be accurately moved within the cartridge. The number of clips according to supply and ligation of the clips by the jaw assembly is displayed on the head part. Accordingly, the ligator for ligating the blood vessel can be conveniently used.

Description

Polymer Clip Continuous Vessel Ligator {Automatic Polymer Clip Applier}

The present invention relates to a polymer clip continuous vascular ligator, and specifically, by pushing an asymmetric polymer clip up and down with an improved feed bar from within a cartridge to a jaw assembly so that it is accurately fed, blood vessels and Polymer clip continuous vascular ligation that facilitates tissue ligation and allows the number of clips to be easily checked during thoracic endoscopic surgery by exposing the number of clips on one side of the handle assembly when ligating blood vessels and tissues with clips it's about gear.

In general, the blood vessel ligator, as it has already been widely disclosed, detailed descriptions are omitted, and Patent No. 10-1649718 "Automatic Clip Apple Liar for Medical Use" and Patent No. 10-1965936 "Slip Prevention Structure for Clip Apple Liar" Jaw unit”, Patent No. 10-2036055 “Medical clip applier”, U.S. Patent No. 7,585,304 “Endoscope clip feeding device with improved hole for clip ejection and related methods”, and Patent Publication No. 10-2018 -0105783 “Joe unit with structure to prevent club departure and deformation and Apple Liar with it” can be referred to.

On the other hand, the “automatic clip apple liar for medical use” has a spare unit and, if necessary, operates the push unit to move the clip through the guide tube to the jaw unit, but pushes the clip with an eccentric operating force within the guide tube. There is a disadvantage that it can be caught while moving. In addition, there is a inconvenience in that it is difficult for the user to check the remaining number of clips inside the guide channel and the moving guide in the spare unit during thoracic and abdominal endoscopic surgery. There is also the problem of wastage.

In addition, the “jaw unit of the anti-slip structure for the clip apple lily” has a slip prevention groove in the jaw unit to prevent the clip from being separated from the apple lily, but because the clip is pushed by an eccentric force in the guide tube. There is a problem in that the clip is not supplied during ligation of blood vessels and tissues due to the high frequency of swaying back and forth in the guide tube at this time. In addition, since the user cannot check the number of clips remaining inside the guide tube during thoracoabdominal endoscopic surgery, the clip applier is replaced with clips remaining, increasing the risk of exposure to infection in the surgical site and wasting clips. There is a problem to do.

In addition, the "medical clip applier" prevents the clip from coming off during the ligation process and prevents damage to the ligation site during ligation of blood vessels and tissues. There is a problem in that the clip is often caught inside and cannot move to the clip guide. In addition, there is a problem in that the number of clips remaining inside the induction rod cannot be checked during thoracotomy and endoscopic surgery, and the clips are replaced while remaining, increasing the risk of infection in the surgical site.

In addition, the "endoscopic clip feeder with improved hole for clip ejection and related methods" is only used for the lower boss because the tabs protruding to push the clip on the lower line of the feeder bar only push the lower boss of the clip. There is a problem that the clip is often caught in the narrow clip channel when the clip is moved due to the eccentric force, and if the clip is caught, it is urgently replaced during thoracic and abdominal cavity surgery, and the delay in hemostasis of the vascular tissue raises the risk of infection with water. In addition, there is a problem in that it is difficult to check the number of clips remaining in the clip feed assembly inside the shaft during laparoscopic surgery.

In addition, in the above "Jaw unit having a structure to prevent club separation and deformation and an apple liar having the same", a fixed hook unit, a guide unit, a hook structure, and a fixed end unit clip separation prevention are applied to the jaw unit, but the shooting unit has a clip Since the lower end of the clip is pushed, there is a problem such as being caught on the main member when the clip is moved. In addition, there is a problem in that it is difficult for the user to check the number of clips remaining inside the guide member during thoracic abdominal cavity endoscopic surgery, so it is inconvenient to schedule the replacement of the Apple Liar.

On the other hand, FIG. 1 is a view showing an asymmetric polymer clip continuous blood vessel ligator according to the prior art, FIG. 2 is a view showing the correspondence between the clip shown in FIG. 1, the cartridge and the supply bar, and FIG. 3 is FIG. It is a view showing the interior part of the handle assembly shown in 1 exposed.

The above-described blood vessel ligator 2 is coupled to the head portion 12 with a knob 13 while holding the handle 11 of the handle assembly 20 during thoracoabdominal endoscopic surgery, as shown in FIGS. 1 to 3 . Insert the installed shaft portion 40 into the endoscopic surgery site, and then pull the trigger 17 until the interference wing 16 is caught in the middle of the ratchet step gear 11a by 1 step, the spring portion (S) The push rod member 14, which has advanced by overcoming the first spring (S1) force of the, advances the supply bar (34). When the supply bar 34 advances, the clip 4 supported by the retraction prevention elastic piece 32a is moved to the jaw guide jaw 62 of the jaw assembly 60 and then seated.

Then, the two-step step of moving the jaw assembly 60 to position the blood vessel and tissue to be hemostatic between the clips 4 and then pulling the trigger 17 all the way to the end is performed. Accordingly, blood vessels and tissues are tied by the clip (4). At this time, the push rod 14c guided to the hollow guide tube 14b by the further pulled trigger 17 overcomes the second spring (S2) force while advancing only the outer shaft 36S containing the cartridge 32. do. As the outer shaft 36s advances, the neck portion 61 that has been spread by the jaw spring is in a state of being wrapped inside the outer shaft 36S, and eventually the jaw guide jaw 62 is tightened. That is, as the neck portion 61 is contracted, the jaw guide jaws 62 integrally formed on one side press the clip 4 strongly in the upper and lower directions to be forcedly coupled. Through this, blood vessels and tissues are ligated by the clip (4).

However, since the clip 4 accommodated within the cartridge 32 with a certain tolerance is such that the lower end side push elastic piece 37b of the supply bar 34 pushes only the lower boss 5b with an eccentric force, the cartridge (32) There is a problem in that the front and rear parts are moved in a shaking state.

In addition, in the supply bar 34 , the lower end push elastic piece 37b formed on the lower end bar plate 35b of the guide groove 36 is supported by the retraction prevention elastic piece 32a in the cartridge 32 . When pushing only the lower boss 5b of (4), there is also a problem in that the cartridge 32 is frequently caught because the eccentric force acts.

As described above, the use of the polymer clip continuous vascular ligator 2 is avoided or used as the clip 4 is frequently caught on the shaft portion 40 of the conventional polymer clip continuous vascular ligator 2 . There is a problem with not doing it. Accordingly, it is a situation in which a clip single-shot type blood vessel ligator is used while taking the inconvenience of seating the clip every time ligation.

On the other hand, if a clip single-shot blood vessel ligator is used, there is also a problem in that the risk of infection to the surgical site increases because the surgical site is moved in and out whenever the clip is supplied.

In addition, the conventional polymer clip continuous blood vessel ligator (2) has a problem in that when the clip (4) is caught, hemostasis of blood vessels and tissues is delayed, thereby delaying the operation time.

In addition, at the time of ligation of blood vessels and tissues, the conventional polymer clip continuous blood vessel ligator 2 cannot check the remaining number of clips 4, so the remaining number of clips may be replaced during ligation of blood vessels and tissues. There are unpredictable and inconvenient problems.

[Patent Document 0001] Registered Patent No. 10-1649718 "Automatic clip applier for medical use" (Announcement 2016.08.19.) [Patent Document 0002] Registered Patent No. 10-1965936 "Jaw unit of anti-slip structure for Applier" (Announcement 2019.04.04.) [Patent Document 0003] Registered Patent No. 10-2036055 "Medical clip applier" (Announcement 2019.10.24.) [Patent Document 0004] US Patent No. 7,585,304 "Endoscope clip feeding device with improved hole for clip ejection and related method" (published Aug. 4, 2005) [Patent Document 0005] Unexamined Patent Publication No. 10-2018-0105783 "Jaw unit with clip detachment and deformation prevention structure and Apple Liar having the same" (Announcement 2016.08.19.)

The present invention has been devised to solve the above problems, and an object thereof is to allow the polymer clip to be accurately moved to the jaw assembly without being caught in the cartridge.

Another object of the present invention is to divide the supply of the clip and the ligation of the clip into 1 and 2 step steps so that the trigger can be operated, so that the supply and ligation of the clip can be continuously and accurately.

Another object of the present invention is to make the clip counter unit installed in the handle assembly also interlock when the clip is ligated in the jaw assembly.

Another object of the present invention is to display the remaining number of clips on the clip counter unit when the clips are ligated.

Another object of the present invention is to make it possible to easily check the number of clips through the clip counter, thereby predicting the number of ligations by the remaining clips during ligation to blood vessels and tissues.

Another object of the present invention is to form upper and lower push elastic pieces on the supply bar, so that the clip accommodated in the cartridge can be pushed out evenly without eccentric force.

Another object of the present invention is to expand and form the boss guide protrusion and the feed bar guide protrusion so as to reduce the flow due to the tolerance between the cartridge and the clip, so that the feed bar does not shake or get caught in the cartridge when the clip is pushed. to be able to move accurately.

Another object of the present invention is to remarkably reduce the risk of infection in the thoracic and abdominal cavity endoscopic surgery site because the clip can be ligated several times once the polymer clip continuous vascular ligator is inserted into the surgical section.

The present invention for achieving the above technical problem, the handle assembly formed to operate the shaft and the jaw assembly; A cartridge that is assembled and installed on one side of the handle assembly so as to move the clip whenever the handle assembly is manipulated, a cartridge in which the clip is accommodated, a supply bar installed inside the cartridge to push the clip seated in the cartridge, and the supply bar a shaft portion provided with an outer shaft in the form of a hollow tube so as to have a cartridge installed therein; In the polymer clip continuous blood vessel ligator comprising a jaw assembly installed at one end of the shaft portion so as to ligate the clip supplied through the shaft portion when the handle assembly is operated,

The supply bar includes a bar plate having a predetermined length inserted and installed on one side of the cartridge, a linear guide groove formed with a predetermined length and width protruding toward the cartridge along the center line of the bar plate, and a lower bar of the guide groove. It is made of a plurality of lower-side push elastic pieces that are cut to a certain length at regular intervals so as to protrude obliquely into the cartridge on the plate, and a linear guide groove upper bar plate is fixed to correspond to the lower-side push elastic pieces. It characterized in that it is made by further forming a plurality of upper side push elastic pieces to protrude obliquely to the inside of the cartridge by cutting a certain length at an interval.

The upper-side push elastic piece includes an upper boss formed at the front upper portion of the clip in the forward direction, and among the lower bosses formed behind and lower than the upper boss of the clip, when the lower-side push elastic piece pushes the lower boss of the clip, the upper end at the same time It is characterized in that it is formed so that the boss can be pushed forward.

The upper push elastic piece may correspond to the upper boss of the clip in a linear guide groove upper bar plate that is the same body as the linear guide groove lower bar plate in which the lower push elastic piece is formed so as to correspond to the lower boss of the clip. It is characterized in that it is formed side by side with the lower side push elastic piece and the upper side spaced a certain distance.

The upper end side push elastic piece is characterized in that it is formed to be longer than the length of the lower side push elastic piece so as to simultaneously push the upper boss of the clip when the lower side push elastic piece pushes the lower boss.

In the cartridge, when the supply bar pushes the clip, the front and rear sides of the clip are formed in the longitudinal direction on the left and right sides so that the clip can be moved forward accurately without shaking up and down, left and right, and guide protrusion line portions that protrude inward are formed. .

The guide protrusion line part protrudes inward from one side of the cartridge and protrudes inwardly on the other side of the cartridge to protrude inward from the other side of the cartridge, and the boss guide protrusion is formed horizontally to reduce tolerance with the upper and lower bosses on one side of the folded part in the middle of the clip. It is characterized in that it comprises a supply bar guide protrusion formed to be inserted into the guide groove to guide the movement of the supply bar while reducing the tolerance with the upper and lower bosses by the guide groove of the supply bar on the other side of the intermediate fold.

In addition, the present invention is formed so as to be able to manipulate the shaft portion and the jaw assembly, a head portion formed on the upper handle, a knob coupled to separate and install the shaft portion to the head portion, the knob and the inside of the head portion A push rod member connected to the end of the shaft part disposed over, a spring part inserted into the push rod member and the shaft part so as to return when the operating force applied to the push rod member and the shaft part is extinguished, and the push rod member 1,2 a handle assembly including a trigger installed in front of the handle to receive interference from the ratchet step gear so that it can be pushed step by step; a shaft part assembled and installed on one side of the handle assembly to move the clip whenever the handle assembly is manipulated; In the polymer clip continuous blood vessel ligator comprising a jaw assembly installed at one end of the shaft portion so as to ligate the clip inserted through the shaft portion when the handle assembly is operated,

In the head part, it is characterized in that the clip counter part is further installed therein so that the remaining number of clips can be checked through the display hole by the forward operation of the push rod member interlocking when the trigger is operated.

The clip counter unit includes a section slider that is connected to a trigger operation guide plate formed to extend to the reverse side of the push rod member so that the overlapping section can be moved forward and backward, and the section slider is pulled forward when the overlap is released. It characterized in that it comprises a counter hook connected to the section slider, and a counter wheel part installed so that the number of clips is exposed to the display hole while rotating when the counter hook is advanced.

The section slider includes a slider body vertically connected to a trigger operation guide plate, a guide groove formed on one side of the slider body so as to be able to easily move forward and backward on a guide jaw inside the handle, and a gap between the slider body It is characterized in that it comprises a parallel guider formed to guide the overlapping and pulling of the counter hooks assembled in the long holes respectively formed while being placed side by side.

The counter hook has a hook connecting pin at one end that is formed to be assembled and connected to a long hole to slide or catch along the parallel guider of the section slider, and a length that can overlap the parallel guider while forming the hook connecting pin at one end. It characterized in that it comprises a hook bar formed and a hook projection formed to be caught on the ratchet gear of the counter wheel portion at the other end of the hook bar.

The counter wheel part includes: a counter shaft and a number display wheel provided with a counter clutch bearing on the shaft part so as to be rotatably installed inside the head part; a ratchet gear installed on one side of the number display wheel so that the counter hook rotates one by one; In accordance with the rotation of the ratchet gear, the number display wheel displays a number?? It is characterized in that it comprises a stopper wheel installed to rotate while overcoming the pressure of the stopper on the other side of the number display wheel so as to be changed.

The head part has a display hole formed on the outer circumferential surface of the number display wheel at an interval equal to the gear interval of the ratchet gear so that the displayed number can be accurately exposed, and a counter wheel having a number display wheel to prevent foreign substances from entering It characterized in that it comprises a transparent cover member further installed on the upper portion of the display hole so that the number in the display hole can be seen.

According to the asymmetric polymer clip continuous blood vessel ligator of the present invention, there is an effect that the polymer clip can be accurately moved to the jaw assembly without being caught in the cartridge.

In addition, by dividing the operation of supplying the clip and ligation of the clip into 1 and 2 step steps to operate the trigger, there is an effect that allows the supply and ligation of the clip to be continuously and accurately.

In addition, when the clip is ligated in the jaw assembly, there is an effect of interlocking the clip counter unit installed in the handle assembly.

In addition, there is an effect of displaying the remaining number of clips on the clip counter unit when the clips are ligated.

In addition, by making it easy to check the number of clips through the clip counter unit, there is an effect of enabling ligation while predicting the number of ligations by the remaining clips during ligation to blood vessels and tissues.

In addition, by forming the upper and lower side push elastic pieces on the supply bar, there is an effect of uniformly pushing the clip accommodated in the cartridge without eccentric force.

In addition, by expanding and forming the boss guide protrusion and the feed bar guide protrusion to reduce the flow due to the tolerance between the cartridge and the clip, the feed bar can move accurately without being shaken or caught in the cartridge when the clip is pushed. It works.

In addition, since the polymer clip continuous vascular ligator can be ligated several times once inserted into the surgical section, it has the effect of significantly reducing the risk of infection in the thoracic and abdominal cavity endoscopic surgery site.

1 is a view showing an asymmetric polymer clip continuous vascular ligator according to the prior art.
Fig. 2a)b) is a view showing the correspondence between the clip shown in Fig. 1, the cartridge, and the supply bar;
Fig. 3 is an exposing view of the interior portion of the handle assembly shown in Fig. 1;
4 is a view showing a polymer clip continuous vascular ligator according to the present invention.
Fig. 5 is a diagram schematically showing the correspondence between the clip shown in Fig. 4, the cartridge, and the supply bar;
Figure 6a) b) is a supply bar formed to push the upper and lower bosses of the clip shown in Figure 4, and Figure 6a) is a view for explaining the state when the clip is moved.
Fig. 7a)b) is a view showing the cartridge storage state of the clip shown in Fig. 4 and AA of Fig. 7a).
Fig. 8 is an exploded view showing the main part of the clip counter shown in Fig. 4;
Fig. 9 is a view showing the operation of the clip counter unit installed in the handle assembly shown in Fig. 4;

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, by describing a preferred embodiment of the present invention with reference to the accompanying drawings, the polymer clip continuous vascular ligator of the present invention will be described in detail.

Polymer clip continuous blood vessel ligator 2 according to the present invention, as shown in Fig. 4, the handle assembly 20 formed to be able to manipulate the shaft portion 40 and the jaw assembly 60; The cartridge 32 is assembled and installed on one side of the handle assembly 20 so that the clip 4 can be moved whenever the handle assembly 20 is manipulated, and the clip 4 is accommodated, and the cartridge 32 is seated on the cartridge 32 . A supply bar 34 installed inside the cartridge 32 so as to push the clip 4, and a hollow outer shaft 36S that inserts the cartridge 32 into which the supply bar 34 is inserted. ) provided with a shaft portion 40 and; When the handle assembly 20 is operated, a jaw assembly 60 installed at one end of the shaft part 40 is provided so that the clip 4 inserted through the shaft part 40 can be ligated.

In addition, as shown in FIGS. 4 and 5 , the supply bar 34 includes a bar plate 35 having a predetermined length inserted and installed on one side of the inner side of the cartridge 32 , and the center line of the bar plate 35 . A linear guide groove 36 formed with a predetermined length and width protruding toward the cartridge 32 along It is made of a plurality of lower-side push elastic pieces 37b that are cut and formed to a predetermined length, and linear guide grooves 36 and upper bar plates 35a are formed to correspond to the lower-side push elastic pieces 37b. It is made by further forming a plurality of upper-side push elastic pieces (37a) that are cut to a predetermined length at a predetermined interval and protrude obliquely to the inside of the cartridge (32).

In addition, as shown in FIGS. 5 and 6a)b), the upper end-side push elastic piece 37a includes an upper boss 5a formed on the front upper portion of the clip 4 in the forward direction, and the clip 4 When the lower push elastic piece 37b pushes the lower boss 5b of the clip 4 among the lower bosses 5b formed behind and lower than the upper boss 5a of the formed to advance.

The upper end side push elastic piece (37a) is formed with a difference in length from the lower end side push elastic piece (37b), so that the lower end side push elastic piece (37b) is in contact with the lower end boss (5b) of the clip (4). At the same time, the upper and lower bosses 5a and 5b can be pushed out simultaneously without a time difference by touching the upper boss 5a of the clip 4 at the same time.

In addition, the upper end side push elastic piece (37a), as shown in Figs. 5 and 6a) b), the lower side push elastic piece (37b) to correspond to the lower boss (5b) of the clip (4) The linear guide groove 36 formed in the lower bar plate 35b and the same body as the linear guide groove 36, the upper bar plate 35a, and the lower side push to correspond to the upper boss 5a of the clip 4 The elastic piece 37b and the upper side spaced apart are formed side by side.

In addition, the upper end side push elastic piece (37a), as shown in Figs. 5 and 6a) b), when the lower end side push elastic piece (37b) pushes the lower boss (5b) at the same time as the upper end of the clip (4) It is formed longer than the length of the bottom side push elastic piece (37b) so as to push the boss (5a).

As described above, the upper and lower push elastic pieces 37a and 37b are formed by changing the length when the formation position of the upper and lower bosses 5a and 5b is changed due to the improvement of the clip 4, thereby forming the clip 4 ) of the upper and lower bosses (5a) and (5b) can be easily pushed.

In addition, in the cartridge 32, as shown in FIGS. 6a)b) and 7a)b), when the supply bar 34 pushes the clip 4, the front and rear sides of the clip 4 do not shake up, down, left and right. It is formed in the longitudinal direction on both sides of the left and right so that it can be moved forward accurately without a guide line portion 38 protruding inward is formed.

In addition, as shown in FIGS. 5 to 7a)b), the guide line portion 38 protrudes inward from one side of the cartridge 32 and is on one side of the folded portion 6 that is in the middle of the clip 4 . In the upper and lower bosses (5a) and (5b) and the boss guide projection (38a) formed horizontally so as to reduce the tolerance, and the other side of the cartridge (32) protruding inward from the folded portion (6) in the middle of the clip (4) The supply formed to be inserted into the guide groove 36 to guide the movement of the supply bar 34 while reducing the tolerance with the upper and lower bosses 5a and 5b by the guide groove 36 of the supply bar 34 on the other side of the line. and a bar guide protrusion 38b.

In addition, the polymer clip continuous blood vessel ligator 2 according to an embodiment of the present invention is formed to be able to manipulate the shaft portion 40 and the jaw assembly 60, as shown in FIGS. 4 and 8, A head portion 12 formed on the upper portion of the handle 11, a knob 13 coupled to the head portion 12 so that the shaft portion 40 can be separated and installed, and the knob 13 and the head portion ( 12) A push rod member 14 connected to the end of the shaft portion 40 disposed inside, and a push rod member to return when the operating force applied to the push rod member 14 and the shaft portion 40 is extinguished ( 14), the spring part (S) inserted into the shaft part 40, and the ratchet step gear 11a in front of the handle 11 so that the push rod member 14 can be pushed in steps 1 and 2 a handle assembly 20 composed of a trigger 17 and the like installed to receive; a shaft portion 40 assembled and installed on one side of the handle assembly 20 so that the clip 4 can be moved whenever the handle assembly 20 is operated; When the handle assembly 20 is operated, a jaw assembly 60 installed at one end of the shaft part 40 is provided so that the clip 4 inserted through the shaft part 40 can be ligated.

In addition, as shown in FIGS. 4 and 8 , the remaining number of clips 4 is displayed on the head 12 by the forward operation of the push rod member 14 interlocked when the trigger 17 is operated. A clip counter portion 70 that can be checked through the hole 72 is further installed therein.

In addition, as shown in FIGS. 4 and 8 and 9 , the clip counter part 70 moves forward and backward with an overlapping section on the trigger operation guide plate 14a formed to extend to the reverse side of the push rod member 14 . A section slider 74 that is connected and installed so as to be movable, a counter hook 76 that is connected to the section slider 74 so that it can be pulled when the overlapping is released by advancing of the section slider 74, and a clip 4 ) and the counter wheel part 78 installed so as to be exposed to the display hole 72 while rotating when the counter hook 76 is advanced.

In addition, as shown in Figs. 4 and 9, the section slider 74 includes a slider body 74a vertically connected to the trigger operation guide plate 14a, and a guide jaw inside the handle 11. A guide groove 74b formed on one side of the slider body 74a so as to be able to ride back and forth easily, and a counter hook assembled to the long hole 74c formed while spaced apart from the slider body 74a, respectively. and a parallel guider 74d formed to guide the overlapping and pulling of 76.

In addition, the counter hook 76 is, as shown in FIGS. 4 and 9, one end formed to be assembled and connected to the long hole 74c to slide or catch along the parallel guider 74d of the section slider 74. of the hook connecting pin 76a, and a hook bar 76b formed to a length that can be overlapped with the parallel guider 74d while forming the hook connecting pin 76a at one end, and the hook bar 76b A hook protrusion 76c formed to be caught by the ratchet gear 78d of the counter wheel part 78 is included at the other end.

In addition, as shown in FIGS. 4 and 9 , the counter wheel part 78 is provided with a counter shaft 78a and a counter clutch bearing 78b on the shaft part so as to be rotatably installed inside the head part 12 . a number display wheel 78c; a ratchet gear (78d) installed on one side of the number display wheel (78c) so that the counter hook (76) can rotate one by one; In accordance with the rotation of the ratchet gear (78d), the number display wheel (78c) displays a number? It includes a stopper wheel 78f installed on the other side of the number display wheel 78c to rotate while overcoming the pressure of the stopper 78e so that it can be changed.

In addition, as shown in FIGS. 4 and 9, the number displayed on the outer circumferential surface of the number display wheel 78c is spaced as much as the gear interval of the ratchet gear 78d on the head portion 14, and the displayed number is accurately exposed. The upper part of the display hole 72 so that the number in the display hole 72 can be seen so that foreign substances do not enter the counter wheel part 78 having the display hole 72 formed so as to be able to display the number and the number display wheel 78c. It comprises a transparent cover member (12a) that is further installed on the.

Hereinafter, examples of use of the present invention made as described above will be described in detail with reference to the drawings.

First, as shown in FIG. 9 , in step 0-, hold the handle 11 of the handle assembly 20 in the blood vessel ligator 2 filled with the clip 4 for endoscopic thoracoabdominal surgery. The shaft portion 40 coupled to the head portion 12 by the knob 13 is inserted into the laparoscope to prepare for ligation.

-Step.1-

Then, as shown in FIG. 9 , the trigger 17 is pulled to stop the blood vessels and tissues of the surgical site. At this time, pull until the interference wing 16 formed on the trigger 17 is caught in the middle of the ratchet stem gear 11a formed inside the handle 11 so that one step step is made.

When the trigger 17 is pulled so that one step is made, the supply bar 34 is moved by the push rod member 14 which overcomes the first spring (S1) force of the spring part (S) and advances the cartridge (32). The clip 4 supported by the retraction prevention elastic piece 32a of the is pushed to the end. At this time, the upper and lower push elastic pieces 37a and 37b formed on the supply bar 34 push the upper and lower bosses 5a and 5b of the clip 4 to the end. Accordingly, the clip 4 slides without engaging the cartridge 32 whose clearance is reduced by the boss guide projection 38a and the supply bar guide projection 38b, and slides into the jaw guide jaw 62 of the jaw assembly 60. As it unfolds, it settles in.

-Step.2-

When the clip 4 is seated in the jaw guide jaw 62, the jaw assembly 60 is moved to ligate the selected blood vessel and tissue with the clip 4 to move the ligation position of the blood vessel and tissue between the clips 4 pick it up Thereafter, when the trigger 17 is pulled all the way to the end of the two-step step, the push rod 14C of the push rod member 14 guided to the hollow guide tube 14b in the handle assembly 20 is a second spring (S2). It advances while overcoming the force and advances the outer shaft 36S that is inserted and installed in the cartridge 32, and tightens while surrounding the neck portion 61 that was spread from the tip of the shaft portion 40 by the jaw spring.

Accordingly, the neck portion 61 tightened by the outer shaft portion 36S strongly presses the clip 4 in the vertical direction while the jaw guide jaw 62 formed integrally is closed so that the clip 4 is forcedly coupled. That is, when the jaw guide jaw 62 is closed, the clip 4 ligates blood vessels and tissues.

At this time, the section slider 74 connected to the slider body 74a to the trigger operation guide plate 14a of the push rod 14c is pulled by the length of the long hole 74c in one step step, and then the trigger 17 is pulled to the end. As the step step, the parallel guider 74d pulls the hook bar 76b of the counter hook 76 that is hung with the hook connection pin 76a in the long hole 74c.

As the hook bar 76b of the counter hook 76 is pulled, the hook protrusion 76c pulls one gear of the meshed ratchet gear 78d to rotate the ratchet gear 78d. When the ratchet gear 78d is rotated by the counter shaft 78a and the counter clutch bearing 78b assembled therein, the stopper wheel 78f integrally installed with the number display wheel 78c is attached to the stopper 78e. As the rotation is restricted by this, the number of clips displayed on the number display wheel 78c when the ratchet gear 78d rotates is displayed with a changed number in the display hole 72 provided in the head part 12 .

-Step.0 (Return) -

Thereafter, the trigger 17 and the outer shaft 36s and the supply bar 34 are retracted and returned while the elastic force of the spring part S is restored. And the next clip (4) is supplied and prepared to be ligated.

As described above, a user using the blood vessel ligator 2 can simply check the number of clips 4 . That is, the use of the blood vessel ligator 2 for ligating blood vessels and tissues is made convenient.

Accordingly, if the blood vessel ligator 2 is used to continuously supply the clip 4 without being caught quickly and accurately, it is possible to easily stop hemostasis of blood vessels and tissues during thoracic and abdominal endoscopic surgery. In addition, it is possible to reduce the risk of infection because there is no frequent entry and exit of the blood vessel ligator 2 during thoracoabdominal endoscopic surgery as well as shortening the operation time.

In addition, the number of clips (4) exposed to the display hole (72) of the clip counter part (70) at the time of ligating blood vessels and tissues while using the polymer clip continuous blood vessel ligator (2) can be easily checked, After hemostasis of the tissue, it is also possible to quickly prepare for the surgical procedure.

The embodiments of the polymer clip continuous vascular ligator of the present invention described above are merely exemplary, and various modifications and equivalent other embodiments are possible from those of ordinary skill in the art to which the present invention pertains. will be well known. Therefore, it will be well understood that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. Moreover, it is to be understood that the present invention covers all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

2: blood vessel ligator 4: clip
5a: upper boss 5b: lower boss
6: Folding part 11: Handle
12: head portion 12a: cover member
13: knob 14: push rod member
14a: trigger operation guide 16: ratchet step gear
17: trigger 20: handle assembly
32: cartridge 34: supply bar
35: bar plate 35a: upper bar plate
35b: lower bar plate 36: guide groove
36S: outer shaft 37a: upper side push elastic piece
37b: bottom side push elastic piece 38: guide projection line portion
38a: boss guide projection 38b: supply bar guide projection
40: shaft part 60: jaw assembly
70: clip counter portion 72: display hole
74: section slider 74a: slider body
74b: guide groove 74c: long hole
74d: parallel guider 76: counter hook
76a: hook connecting pin 76b: hook bar
76c: hook projection 78: counter wheel portion
78a: counter shaft 78b: counter clutch bearing
78c: number display wheel 78d: ratchet gear
78e: stopper 78f: stopper wheel
S: spring part

Claims (12)

It is formed so as to be able to manipulate the shaft part 40 and the jaw assembly 60, and the head part 12 formed on the upper part of the handle 11, and the shaft part 40 to the head part 12 are separated and installed A knob 13 coupled so as to be able to, a push rod member 14 connected to the end of the shaft portion 40 disposed within the knob 13 and the head portion 12, and the push rod member ( 14) and the spring part (S) inserted and installed in the push rod member 14 and the shaft part 40 to return when the operating force applied to the shaft part 40 is extinguished, and the push rod member 14 in steps 1 and 2 a handle assembly 20 composed of a trigger 17 installed in front of the handle 11 so as to be pushed so as to receive interference from the ratchet step gear 11a; The cartridge 32 is assembled and installed on one side of the handle assembly 20 so that the clip 4 can be moved whenever the handle assembly 20 is manipulated, and the clip 4 is accommodated, and the cartridge 32 is seated on the cartridge 32 . A supply bar 34 installed inside the cartridge 32 so as to push the clip 4, and a hollow tube-shaped outer shaft in which the cartridge 32 having the supply bar 34 installed therein is embedded. a shaft portion 40 provided with (36S); Polymer clip continuous vascular ligation comprising a jaw assembly 60 installed at one end of the shaft part 40 so that the clip 4 inserted through the shaft part 40 can be ligated when the handle assembly 20 is operated. In group (2),
In the head part 12,
Clip counter 70 inside so that the remaining number of clips 4 can check the number of clips displayed through the display hole 72 by the forward operation of the push rod member 14 interlocking when the trigger 17 is operated. is installed,
In the supply bar (34),
A bar plate 35 having a certain length inserted and installed on one side of the inside of the cartridge 32, and a linear guide groove formed with a certain length and width protruding toward the cartridge 32 along the center line of the bar plate 35 ( 36), and a plurality of lower end push elastic pieces 37b formed by being cut to a predetermined length at a predetermined interval so as to protrude obliquely into the cartridge 32 in the lower bar plate 35b of the guide groove 36. be done,
A plurality of upper side pushes in which the upper bar plate 35a of the linear guide groove 36 is cut to a predetermined length at regular intervals to correspond to the lower push elastic piece 37b and protrude obliquely to the inside of the cartridge 32 Polymer clip continuous blood vessel ligator, characterized in that it further forms an elastic piece (37a). The method of claim 1,
The upper end side push elastic piece (37a) is,
Among the upper boss 5a formed in the front upper portion of the clip 4 in the forward direction and the lower boss 5b formed in the lower rear than the upper boss 5a of the clip 4, the lower push elastic piece 37b is a clip When the lower boss (5b) of (4) is pushed, the upper boss (5a) of the clip (4) is also formed to a certain length longer than the length of the lower push elastic piece (37b) so that it can be pushed forward simultaneously without a time difference,
Formed to be symmetrical with respect to the lower end push elastic piece 37b formed in the lower bar plate 35b of the linear guide groove 36 to correspond to the lower boss 5b of the clip 4,
Polymer, characterized in that it is further formed in parallel with the lower push elastic piece 37b at a predetermined distance on the upper bar plate 35a side of the guide groove 36 to correspond to the upper boss 5a of the clip 4 Clip continuous vascular ligator. delete delete The method of claim 1,
In the cartridge 32,
When the supply bar 34 pushes the clip 4, the front and rear sides of the clip 4 are formed in the longitudinal direction on both left and right sides so that the clip 4 can move forward accurately without shaking up and down, left and right, and the guide line part 38 protrudes inward. is formed,
The guide line portion 38,
A boss guide protrusion 38a that protrudes inward from one side of the cartridge 32 and is formed horizontally so as to reduce the tolerance with the upper and lower bosses 5a and 5b on one side of the folded portion 6 in the middle of the clip 4 Wow,
The upper and lower bosses 5a and 5b and the tolerance by the guide groove 36 of the supply bar 34 on the other line of the folded portion 6 that protrudes inward from the other side of the cartridge 32 and is the middle of the clip 4 and a feed bar guide protrusion (38b) configured to be inserted into the guide groove (36) to guide the movement of the feed bar (34) while reducing the pressure. delete delete The method of claim 1,
The clip counter 70 is,
A section slider 74 that is connected to the trigger operation guide plate 14a extending to the backward side of the push rod member 14 and installed so as to move forward and backward with an overlapping section;
a counter hook 76 connected to the section slider 74 so as to be pulled when the overlapping is released by the advance of the section slider 74;
Polymer clip continuous blood vessel ligator, characterized in that the number of clips (4) includes a counter wheel part (78) installed to be exposed to the display hole (72) while rotating when the counter hook (76) is advanced. 9. The method of claim 8,
The section slider 74,
A slider body (74a) connected and installed in a vertical state to the trigger operation guide plate (14a),
A guide groove (74b) formed on one side of the slider body (74a) so that it can easily move forward and backward on the guide jaw inside the handle (11);
and a parallel guider (74d) formed to guide the overlapping and pulling of the counter hooks (76) assembled in the long holes (74c) respectively formed while being spaced apart from the slider body (74a) Polymer clip continuous vascular ligator. 9. The method of claim 8,
The counter hook 76,
A hook connection pin (76a) at one end formed to be assembled and connected to the long hole (74c) to slide or catch along the parallel guider (74d) of the section slider (74);
A hook bar (76b) having a length that can be overlapped with the parallel guider (74d) while forming the hook connecting pin (76a) at one end thereof;
and a hook protrusion (76c) formed at the other end of the hook bar (76b) to engage the ratchet gear (78d) of the counter wheel part (78). 9. The method of claim 8,
The counter wheel part 78,
a number display wheel 78c provided with a counter shaft 78a and a counter clutch bearing 78b in the shaft portion so as to be rotatably installed inside the head portion 12;
a ratchet gear (78d) installed on one side of the number display wheel (78c) so that the counter hook (76) can rotate one by one;
In accordance with the rotation of the ratchet gear (78d), the number display wheel (78c) displays a number? Polymer clip continuous blood vessel ligator, characterized in that it comprises a stopper wheel (78f) installed on the other side of the number display wheel (78c) to rotate while overcoming the pressure of the stopper (78e) so as to be replaced. The method of claim 1,
In the head part 12,
A counter having a number display wheel 78c and a display hole 72 formed on the outer circumferential surface of the number display wheel 78c so that the displayed number can be accurately exposed with an interval equal to the gear interval of the ratchet gear 78d Polymer clip, characterized in that it comprises a transparent cover member (12a) further installed on the upper portion of the display hole (72) so that the number in the display hole (72) can be seen to prevent foreign substances from entering the wheel part (78) continuous vascular ligator.

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