WO2017066986A1

WO2017066986A1 - Multi-clip ligation device

Info

Publication number: WO2017066986A1
Application number: PCT/CN2015/092651
Authority: WO
Inventors: 时百明
Original assignee: 杭州安杰思医学科技有限公司
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2017-04-27
Also published as: CN107106181A; CN107106181B

Abstract

A multi-clip ligation device comprises a clamping portion (1) and a conveying control portion (2). The clamping portion (1) comprises a clip set and a storage tube (10) storing the clip set. The clip set comprises at least two clips (11) arranged along an axial direction of the storage tube (10). Each clip (11) comprises a pair of clamping pieces (111, 112). A tail portion of each of the clamping pieces (111, 112) is provided with a carrying piece (113). Distortion or deformation of the carrying piece (113) occurs under a predetermined pressure. The carrying pieces (113) of the clamping pieces (111, 112) form a hole (114). The conveying control portion (2) comprises a traction thread (21). The traction thread (21) passes through the hole (114) formed by the carrying pieces (113), and a front end thereof is stopped by the carrying pieces (113). The multi-clip ligation device ensures stable and reliable release of each clip (11), and is free from a risk of an unsuccessful release of a clip caused by degradation of a material used to form a connection release structure. Moreover, when a doctor inserts the multi-clip ligation device once, multiple clips (11) can be released to clamp a diseased spot, thereby reducing surgical time.

Description

Ligation and ligation device

Technical field

The invention belongs to the field of medical instruments, and particularly relates to a continuous hair ligation device for treating active bleeding, wound surface and perforation closure.

Background technique

For more than 50 years since the birth of the endoscope, it has undergone a period from disease diagnosis to disease treatment. It has been very effective and reliable for the treatment of some diseases. The stomach and intestines of living organisms often cause bleeding or mucosal damage or even perforation due to various diseases or accidental injuries or damage during endoscopic treatment. For active bleeding, drug spraying, high-frequency electricity, laser, argon burning method, and mechanical compression of the clip are used for treatment. Among them, mechanical compression of the clip to stop bleeding is more reliable for the treatment of active bleeding caused by non-varicose veins, and has also been recognized by doctors and patients, and has now been used as the most effective means; now the degree of invasiveness of clinical surgery is gradually increasing The damage of the tract is also gradually increased. In the clinic, the clip is used to close the mucosal damage of the digestive tract to promote the wound healing. The small perforation of the digestive tract can be effectively closed, and the effect is gradually recognized by the clinic. Trauma caused by open surgery.

WO2006/098994 discloses a burst clip device comprising: a catheter portion; an operating wire placed inside the catheter that can be advanced and retracted by the catheter; some separable clips, each clip component comprising a combined portion, a plurality of clips, and a slidable collar disposed on the clip, the collar being movable between a first position when the hemostatic clip is open and a second position when closed, the slidable collar The front ends of the clips are capable of abutting each other in the second position, the slide collar including an expandable member, the expandable member being positionable when the hemostatic clip is clamped in the catheter and when at least a portion of the clip is between the catheter leading end positions Moving, the expandable member, when in the extended position, will be at the front end portion of the catheter; wherein the detachable clips are comprised of at least one front end clip and one rear end clip within the catheter, and the front end clips are set in a serial manner On the far side of the back end clip.

The continuation of the burst clip device is that it requires a force when applying a force to the frontmost clip. After each of the clips transmits the force, the strength of the rear clip is gradually increased. If the front end clip is not successfully released, the clip at the rear end will fail due to excessive tension, and a new device needs to be replaced. This situation can lead to delays in surgery. Secondly, when the front end clip is released, the back end clips are subjected to a certain force, so the performance of the clip may be damaged, which may result in inconsistent stability and reliability of each clip.

Summary of the invention

The present invention has been made in view of the above circumstances, and an object of the invention is to provide a good release of each clip and to adjust the angle of the clip by rotation, so that the doctor can aim at the lesion with a better angle and can effectively clamp the lesion tissue. Hold the ligation device.

In order to achieve the above object, the present invention adopts the following technical solutions.

The hair ligature ligation device of the present invention includes a nip portion and a transport control portion, the nip portion includes a clip group and a accommodating tube accommodating the clip group, and the clip group includes at least two along the accommodating tube axis To the aligned clips, each of the clips includes a pair of clips, the clip tail portion is provided with a carrier sheet which is deformed or broken under a predetermined pressure, and the clips form a hole portion through the carrier sheet;

The conveying control unit includes a pulling line, a pushing tube and a control handle, wherein the pulling line runs through the pushing tube, and the control handle is respectively connected with the pushing tube and the rear end of the pulling line to drive the pulling Wire to operate the clip;

Wherein the traction wire passes through the hole formed by the carrier sheet and the front end portion of the traction wire is blocked by the carrier sheet, and when the clip is released, the pressure of the carrier sheet at the front end portion of the traction wire Deformation or destruction occurs such that the clip is disengaged from the conveyance control portion.

Preferably, the clips are disposed in the receiving tube in abutment with each other.

Preferably, a spacer is disposed between two adjacent ones of the clips.

Preferably, the pull wire is provided with an ejection member located at a rear end of the clip group or between two adjacent clips.

Preferably, the tail portion of each clip has at least one carrier sheet, and the carrier sheet is assembled to form a non-closed hole portion.

Preferably, the carrier sheet is disposed only on one of the clips, and the carrier sheet forms the hole portion with the tail portion of the other clip.

Preferably, the tail portions of the two clips are curved bending arms, the bending arms intersect each other such that the clip tail portions are connected, and the tail portions of the bending arms are respectively provided with at least one carrier sheet. The carrier sheets are assembled to form the non-closed holes.

Preferably, the pair of clips are partially symmetrical and partially bent, the tail portion of the unbent portion of the clip has a carrier sheet, and the carrier sheet and the symmetrically bent portion of the clip are composed of Said hole.

Preferably, the control handle includes a handle body, a guide tube penetrating the inside of the handle body, and a sliding handle connected to the rear end of the guide tube, and the sliding handle is sleeved on the handle body so as to be slidable back and forth. a rear end of the push tube is adjacent to a front end of the guide tube, and a rear end of the pull line passes through the guide tube;

The rear end of the traction wire is provided with a sliding seat sliding along the handle body, and the handle body is provided with a front end limiting portion, and the sliding distance of the sliding seat is restricted by the front end limiting portion.

Preferably, the control handle includes a handle body, a guide tube penetrating the handle body, and a sliding handle connected to the rear end of the guide tube, and the slide handle is sleeved on the handle body so as to be slidable back and forth. A rear end of the pull wire runs through the inside of the guide tube, and a rear end end of the pull wire is connected to the slide handle, whereby the slide handle can drive the pull wire to move back and forth.

Preferably, the handle body is provided with a plurality of limiting protrusions, and the sliding handles are hindered when reaching the limiting protrusions, and the spacing of each of the limiting protrusions is one clip or more than one The distance of the clip, or the effective distance of the limit protrusion from the sliding handle is greater than the effective length of one clip.

Preferably, the handle body is provided with a plurality of limit cards that hinder the movement of the slide handle or can be removed, and the interval between the two limit cards is greater than the length of the clip or the limit card and the sliding handle The effective distance is greater than the effective length of the clip.

Compared with the prior art, with the continuous ligature device of the present invention, the release process of each clip can be ensured to be stable and reliable, and there is no risk of unsuccessful release of the clip due to the performance degradation of the material of the connection release structure. And the doctor can release a plurality of hemostatic clips by inserting the continuous ligation device at a time. The clamping of the lesions can greatly reduce the operation time, and strive for the most powerful rescue time for patients and medical personnel, and greatly reduce the labor intensity, and reduce medical waste is conducive to environmental protection.

In addition, the present invention sets the connection of the clip and the traction wire in the tightening tube or the stopping tube, which greatly shortens the length of the clip, makes it simpler, more reliable, and has a shorter structure, and is more suitable for a curved endoscope. The clamp provides a clinician with a ligation device that is widely applicable to all parts of the digestive tract.

DRAWINGS

Figure 1 is a schematic view showing the overall structure of a ligation device of the present invention;

2 is a schematic structural view of a first embodiment of a clip set of the present invention;

Figure 3 is a schematic view showing the structure of a second embodiment of the clip set of the present invention;

Figure 4 is a schematic view showing the structure of a third embodiment of the clip set of the present invention;

Figure 5 is a cross-sectional view showing a first embodiment of the tightening tube and the stopper tube of the present invention;

Figure 6 is a cross-sectional view showing a second embodiment of the tightening tube and the stopper tube of the present invention;

Figure 7 is a cross-sectional view showing a third embodiment of the tightening tube and the stopper tube of the present invention;

Figure 8 is a cross-sectional view showing a fourth embodiment of the tightening tube and the stopper tube of the present invention;

Figure 9 is a cross-sectional view showing a fifth embodiment of the tightening tube and the stopper tube of the present invention;

Figure 10 is a schematic view showing the structure of an embodiment of the clip of the present invention;

Figure 11 is a schematic view showing the structure of a first assembly of a pair of clips of the present invention;

Figure 12 is a schematic view showing the structure of a second assembly of a pair of clips of the present invention;

Figure 13 is a schematic view showing the structure of a third assembly of a pair of clips of the present invention;

Figure 14 is a schematic view showing the structure of a fourth assembly method of a pair of clips of the present invention;

Figure 15 is a schematic view showing the structure of a fifth assembly method of a pair of clips of the present invention;

Figure 16 is a cross-sectional structural view showing a first embodiment of the conveyance control unit of the present invention;

Figure 17 is a cross-sectional structural view showing a second embodiment of the conveyance control unit of the present invention;

Figure 18 is a cross-sectional structural view showing a third embodiment of the conveyance control unit of the present invention;

Fig. 19 is a cross-sectional structural view showing a modification of the third embodiment of the conveyance control unit of the present invention.

detailed description

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the ligation device of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Referring to FIG. 1 and FIG. 2 and FIG. 3, the ligation device of the present invention comprises a clamping portion 1 and a conveying control portion 2. The clamping portion 1 includes a clip group and a receiving tube 10 for accommodating the clip group, and the receiving tube 10 has a spring spiral structure. The clip set includes at least two clips 11 axially arranged along the receiving tube 10, each of the clips 11 including a pair of

clips

111, 112; the transport control portion includes a pull wire 21, a push tube 22 and a control handle. The front end of the pull wire 21 passes through the clip group, and the rear end of the pull wire 21 penetrates into the push tube 22, and the control handle is connected to the push tube 22 and the rear end of the pull wire 21, respectively, to drive the pull wire 21 to operate the clip.

Preferably, the pull wire 21 extends through each of the clips, and the front end of the pull wire 21 may be provided with a pull end 212, and the pull end 212 is located at the front end of the frontmost clip. The pull end 212 can perform a closing and releasing operation for each clip one by one.

The respective components of the ligation device of the present invention will be separately described below.

(1) Clamping section

<clip>

The clip 11 includes a pair of

clips

111 and 112, and the tail portion of the clip is provided with a carrier sheet which is deformed or broken under a predetermined pressure, and the clip forms a hole portion at the tail portion through the carrier sheet (the formation of the hole portion will be later The clip 11 may further include a tightening tube 12 for tightening the rear end of the clip. The tightening tube 12 is substantially tubular. The rear end of the tightening tube may also be provided with a stop tube 13 and a stop tube. 13 can be made of high-performance polymer materials, such as PA (amide), nylon, liquid crystal polymer, PPA (polyphthalamide) injection molding, or high-elastic metal materials by mechanical processing, stamping Or formed by processes such as powder metallurgy.

There are many ways to implement the stop tube and the tightening tube.

For example, as one of the embodiments, as shown in FIG. 5, the front end of the stopper tube 13 is provided with a stopper step 131, and when the clip 11 is pulled backward, it passes through the tightening tube 12 and penetrates into the inner hole of the stopper tube 13. When the carrier piece at the tail of the clip abuts against the stopping step 131 of the stopping tube, thereby preventing the clip 11 from continuing easily It enters the stopper tube 13 while it comes into contact with the inner wall of the stopper tube 13, preventing the clip 11 from coming out therefrom. The rear end of the stop tube 13 is provided with a buckle portion 132, and the buckle portion 132 has an elastic deformation function. When the clip is pressed and deformed, the buckle portion 132 of the stopper tube 13 is elastically compressed inward, and when the pressure is removed, the buckle portion 132 is restored to the open state.

As a second embodiment of the tightening tube, as shown in FIG. 6, the tightening tube 12 is assembled with two pin members 122, and a gap is left between the two pin members, which allows the pulling wire 21 and the pulling end 212. by. As a third embodiment of the tightening tube, as shown in Fig. 7, the tightening tube is provided with two bends 123, and a gap is left between the bends 123, which allows the pulling wire 21 and the pulling end 212 to pass.

As a fourth embodiment of the tightening tube, as shown in FIG. 8, the tightening tube 12 and the stopper tube 13 are integrated, and are substantially in the shape of a barrel, and are made of medical elastic metal materials such as stainless steel, nickel titanium alloy, cobalt chrome. The molybdenum or the like is formed with an inner bent structure 136 bent toward the inner side of the tube and another outer bent structure 134 bent outward. The left end has the same function as the end of the tightening tube 12. The inner bending structure 136 can prevent the clip from being retracted into the tightening tube when being pushed out. The outer bending structure 134 has the same function as the locking portion 132 of the stopping tube 13 in the first embodiment, and can be compressed inward and can be externally applied. Withdrawal is a timely bounce.

As a fifth embodiment of the tightening tube, as shown in Fig. 9, on the basis of the fourth embodiment, a blocking bending structure 137 is added to the tightening tube for blocking the clip and preventing the clip from coming out.

There are various ways to combine the clips into a clip group. As one of the embodiments, as shown in FIG. 2, the clips in the clip group are disposed end to end and housed in the housing tube 10. An empty groove is provided at the front end of the clip to allow the passage of the pull wire.

Further, a spacer tube may be added between each two clips in the clip group to space each clip, so as to prevent the interaction between the clips from being damaged or to prevent the rear clip from being excessively exposed when the clip is pushed out. The end face of 10 cannot be stored in the storage tube, causing the device to fail. It should be noted that the inner hole of the spacer tube is larger than the outer diameter of the pulling end, so that the pulling end can pass from the inner hole of the spacer tube to the position of the next clip, so that the next clip can be controlled.

Of course, the clip set of the present invention may have other embodiments. For example, as shown in FIG. 3, a pushing member 216 is fixed on the traction line at the rear end of each clip, and the pushing member 216 has a large front end. The small diameter of the rear end has a large end diameter larger than the minimum diameter or width of the inner hole of the stopper tube 13, and the pushing member 216 can push the stopper tube 13 under the push and pull to drive the entire clip 11 to move toward the front end. The large end diameter of the pushing member 216 is smaller than the effective size of the groove or hole formed by the tail portion of the clip, but larger than the width of the outer diameter of the pulling end, so that the pushing member 216 can pass over the groove or hole formed at the tail of the clip without damaging the clip. Slice structure.

As shown in FIG. 4, the front end of the pushing member 216 can also add a spacing tube 14, which is substantially in the shape of a barrel, and has a through-groove in the side wall thereof, so that the pulling end 212 can pass through the inner hole to reach the next clip. 11 location.

<clip>

As shown in FIGS. 10-15, the tail portion of the clip is provided with a carrier sheet 113 which is deformed or broken under a predetermined pressure, and the clip piece is formed with a hole portion 114 at the tail portion through the carrier sheet 113, and the pull wire 21 passes through the carrier sheet 113. The formed hole portion 114 and the front end portion of the pull wire 21 are blocked by the carrier sheet 113 so that the pull wire cannot escape from the hole portion, and when the clip 11 is released, the carrier sheet 113 occurs under the pressure of the front end portion of the pull wire The deformation or destruction causes the clip 11 to be disengaged from the conveyance control portion 2.

There are a variety of ways of assembling between the clips, as shown below.

The first assembly method of the clip

As shown in FIG. 10-11, in the embodiment, the front end of the clip has a front hook 11a, the rear end of the front hook 11a is connected to the clip main body 11b, and the rear end of the clip main body is a curved arm 11c, and the two clip bending arms The tail portions are connected together so that the two clips can move in synchronization, and the curved arm portions of the two clips are kept at a certain distance; the rear end side of the clip main body 11b is provided with a stopper table 11d. Each of the clips is provided with at least one (one in this embodiment) carrier sheet 113, and the carrier sheets are assembled to form a non-closed hole portion 114.

The tail portions of the curved arms may be connected in the following manner. For example, the tail portions of the bending arms are respectively provided with a timing piece 11e and a synchronization groove 11f. The synchronization piece 11e of the clip piece 111 is engaged in the synchronization groove 11f of the clip piece 112, and is clamped at the same time. The timing piece 11e of the piece 112 is caught in the synchronization groove 11f of the clip 111, whereby the tail portions of the

clips

111 and 112 are joined together; or the pin holes of the curved arms of the two clips may be provided with pin holes, both of which pass The pins are connected together. It should be noted that the connection manner of the clip tail portion is not limited to the listed ones, as long as the two clips can be synchronized. In addition, the two clips can also be provided with a spacer 18 respectively abutting the curved arm of the other clip so that the curved arms of the two clips are kept at a certain distance. from.

Second assembly of the clip

As shown in FIG. 12, the tail portions of the two clips each have two carrier sheets, and the carrier sheets 1132A and 1132B are respectively disposed above and below the tail portion of the clip piece 111, and the carrier sheets 1131A and 1131B are respectively disposed above and below the tail portion of the clip piece 112, and are carried. A non-closed groove portion 1141 is formed between the sheets 1131A and 1132A, a non-closed groove portion 1142 is formed between the carrier sheets 1131B and 1132B, and a non-closed hole portion 114 is formed between the upper carrier sheets 1131A, 1132A and the lower carrier sheets 1131B, 1132B. '.

The clip tail is connected to the structure of the synchronizing groove by the synchronizing piece described above, but the pin holes may also be provided on the two clips, and the two may be connected by pins. It should be noted that the connection manner of the clip tail portion is not limited as long as the two clips can be synchronized.

The third assembly method of the clip

As shown in Fig. 13, only two carrier sheets 113 are provided on the clip 111, and the two carrier sheets 113 are assembled with the tail portions of the clamp arms 112 to form a non-closed hole portion 114".

The clip tail is connected to the structure of the synchronizing groove by the above-mentioned synchronizing piece, but pin holes can also be provided on the two clips, and the two can be connected together by pins. It should be noted that the connection manner of the clip tail portion is not limited as long as the two clips can be synchronized.

The fourth assembly method of the clip

As shown in Fig. 14, the curved arms 11c of the clip tails form intersecting intersecting structures such that the tails of the clips are joined together. The curved arm 11c is provided with a structure of an eccentric bending arm 11c2, and two adjacent side lines are located on one side of the center line of the clip, so that the two curved arms 11c cross at one position but do not affect each other's movement. The tail portions of the two curved arms are each provided with at least one carrier sheet 113 (one in this embodiment), and the carrier sheets are assembled to form a non-closed hole portion 114"'. The edge of the wide bending portion 11c1 of the curved arm Exceeding the center line of the clip, when the two clips of the clip are close together, the two wide bent portions 11c1 abut each other, and are pressed and contracted in the tightening tube 12, and the two wide bent portions 11c1 will generate a certain elastic force outward. Keeping the clip and the tightening tube more firmly together, so that the clip is closed more tightly. The use of an eccentric bending arm is more advantageous for the clip to open a larger angle so that when the clip is closed Clamp more tissue.

The fifth assembly method of the clip

As shown in Fig. 15, the lower half of the tail portions of the two clips are integrally formed (i.e., the pair of clips are partially symmetrical and partially bent), and the upper half of the tail portions of the two clips (unbent portion) Each of the tail portions is provided with a carrier sheet 113. The two carrier sheets 113 have a slit 161 therebetween. The carrier sheet and the tail portion of the clip portion together form a non-closed hole portion 114"" at the symmetric bending portion 141.

The invention adopts the manner that the deformable loose load-bearing structure is arranged at the tail end of the clip, and the release process of the clip can be ensured to be stable and reliable, and the risk of unsuccessful release of the clip due to the performance degradation of the connection release structure material does not occur. Moreover, the invention creatively sets the connection of the clip and the traction wire in the tightening tube or the stopping tube, which greatly shortens the length of the clip, makes it simpler, more reliable, and has a shorter structure, and is more suitable for bending through the endoscope. The mirror clamp provides a clinician with a ligation device that can be widely applied to various parts of the digestive tract, which can greatly reduce the operation time and strive for the most powerful rescue time for patients and medical staff.

The conveying control unit includes a pulling wire 21, a pushing pipe 22 and a control handle. The front end of the pulling wire 21 passes through the clip group, and the rear end of the pulling wire 21 penetrates into the pushing pipe 22, and the control handle is respectively connected with the pushing pipe 22 and the pulling wire 21. The rear end connection in turn drives the pull wire 21 to operate the clip.

In the present invention, the transport control unit can have various implementations, which are described in detail below.

First embodiment

As shown in FIG. 1 and FIG. 16 , the control handle of the present invention includes a handle body 231 , a guide tube 232 extending through the handle body 231 , and a sliding handle 233 connected to the rear end of the guide tube 232 . The sliding handle 233 can be slidably sleeved back and forth. On the handle body 231, the rear end of the push tube 22 is adjacent to the front end of the guide tube 232, and the rear end of the pull wire 21 passes through the guide tube 232. The guide tube 232 can push the push tube 22 toward the front end when the slide handle 233 is pushed toward the front end.

A sliding seat 211 is slid along the handle body 231. The handle body 231 is provided with a front end limiting portion, and the sliding seat 211 is slidable to the front end limiting portion. The conveying member structure is adopted, and the bursting clip device is inserted into the endoscope clamp during use, and the clamp passage opening is exposed through the front end of the screen. At this time, the sliding handle 233 is pushed forward to drive the guide tube 232 to move toward the front end. When the front end of the guiding tube 232 contacts the rear end of the pushing tube, the pushing tube is moved toward the front end, and when the front end of the pushing tube contacts the last clip, it will be driven to move toward the front end, and the last clip 11 is directed to the front side thereof. The thrust is transmitted adjacent to the clip, and the front clip is moved together. Finally, each clip is moved to the front end together, and the front end clip 11 pulls the pull wire 21 to the front end, but when the sliding seat 211 contacts the front end limit portion, Stopping the movement, at this time, the position of the end of the pulling end 212 of the pulling wire 21 fixed relative to the end surface of the receiving tube 10 is relatively fixed and maintained within a reasonable range, exposing a length slightly larger than the effective length of one clip 11 to It is ensured that the clip 11 can be pushed completely out of the receiving tube 10, and only one clip 11 is allowed to be pushed out of the receiving tube 10. When the foremost clip 11 is completely withdrawn from the receiving tube 10 and can no longer move to the front end under the action of the pulling end, the elastic buckle 131 of the stopping tube 12 is bounced outward, and the minimum circumscribed circle diameter is larger than the receiving tube 10 The inner diameter of the end face. Pulling the sliding handle 233 backwards, when the rear end thereof contacts the sliding seat 211, the pulling wire 21 is moved to the rear end, and the clip 11 is driven to approach the receiving tube 10, when the stopping surface of the stopping tube 13 and the receiving tube 10 are After the end surface contacts and is caught between the adjacent clips, the handle body 231 can be rotated at this time, which drives the sliding seat 211 and the traction wire 21 connected to the sliding seat to rotate, and transmits torque to the front end to drive the clip to rotate. In this way, the doctor can adjust the angle of the clip and the lesion according to the needs of the lesion to better aim the lesion. Then, the sliding handle 233 is further pulled, the pulling end 212 is in contact with the carrier 113 disposed on the clip, and the clip is moved toward the rear end, and the clip is gradually closed, when the stopping end of the clip is assembled with the front end of the stopping tube 13 After the end faces of the tight tubes 12 are in contact, the movement is stopped. At this time, the clips are completely closed, and then the pulling force is continuously applied. When the pulling force is greater than the preset tensile force value, pulling the end 212 will destroy the carrier sheets and the holes from the assembled clips. The slot 114 is pushed out to separate the clip from the pull wire 21 to release the clip. Pushing the slide handle 233 toward the front end at this time will repeat the previous force transmission process, and the current front end clip 11 is exposed to the front end surface of the storage tube 10, and pulling the slide handle will repeat the previous force transmission process, and then the current front end The clip is released, so reciprocating, and finally all the clips will be pushed out one by one out of the receiving tube 10 and released one by one.

Second embodiment

As shown in FIG. 17, as a second embodiment of the transport control portion, the control handle of the present invention includes a handle body 231, a guide tube 232 extending through the handle body 231, and a sliding handle 233 connected to the rear end of the guide tube 232. The sliding handle 233 is sleeved back and forth on the handle body 231, and a front end portion of the guide tube is connected to the push tube. The rear end of the pull wire 21 penetrates the inside of the guide tube 232, and the rear end of the pull wire 21 is connected to the slide handle 233. The sliding handle 233 can drive the traction wire 21 to move back and forth.

With the kind of conveying control structure, the bursting clip device is initially inserted through the endoscope clamp port and reaches the lesion position, and the slide handle 233 is pushed toward the front end to drive the pull wire 21 to the front end, and is driven by the movement of the pull wire 21 to be fixed. The pushing member thereon moves toward the front end, and when the pushing member contacts the stopper of the clip, the clip is moved to the front end, and when the front end clip is pushed out of the receiving tube 10, the bursting device is passed through the endoscope to the lesion position. And rotating the handle body 231 to drive the sliding handle 233 and the traction wire 21 fixed thereto to rotate, the traction wire 21 transmits the torque to the pulling end, the pulling end is caught in the clip 11, and the clip is rotated to adjust The angle of the clip relative to the lesion allows the doctor to better grip the lesion, and after aligning the lesion, pull the sliding handle 233 and drive the traction wire fixed thereon to move to the rear end, when pulling the end and the carrier of the clip After the contact, the clip is moved to the rear end. When the clip end of the clip contacts the end surface of the tightening tube, the clip is completely closed, and the clip can no longer continue to move. Tension, will cause the clip carrier sheet is damaged, this time pulling the clip tip and the separation of the clip so that the pull wire 11 to complete the separation of the release clip. Continue to push the sliding handle to bring the second clip 11 exposed to the receiving tube 10, and pull the sliding handle to retract the pulling wire toward the rear end, so that the first pushing member passes over the hole of the clip, thereby pulling the end and the clip Contact and jam, so that the second clip can be released after repeating the previous clip pull process until the last clip is released and the instrument is ready for use.

Third embodiment

As shown in Fig. 18, the third embodiment of the conveyance control unit is modified in some respects to the second embodiment. The handle body 231 can be provided with a plurality of limiting protrusions 2314. When the sliding handle 233 reaches the limiting protrusion 2314, it will be stuck or hindered, but when the doctor pushes and pulls the sliding handle, the patient can still pass. The limit is raised and continues to move. The distance between the limiting protrusions is just the distance between pushing out a clip or slightly about one clip, so that the doctor can play a role in pushing the clip to prevent excessive force. Several clips are continuously pushed out in succession.

Alternatively, as shown in FIG. 19, a plurality of movable connection limit cards 2315 may be added to the handle body 231, which have a certain frictional force with the handle body 231, and may function to hinder the movement of the sliding handle, and There is a certain distance between the two limit cards, which is slightly larger than the length of the clip. When the sliding handle 233 is pushed to the limit card 2315, the limit card hinders the continued movement of the sliding handle, and when the clip needs to be continuously released When the limit card 2315 is removed, the sliding handle 233 can continue to move, or the thrust applied to the sliding handle 233 can be increased to drive the limit card 2315 to move to the next limit card 2315 and stop. The second clip is pushed out of the receiving tube 10. Continuing the process, the clips can be pushed one by one out of the receiving tube 10 and released one by one, thereby completing the surgical procedure.

With the burst ligation device of the present invention, the release process of each clip can be ensured to be stable and reliable, and there is no risk of unsuccessful release of the clip due to a decrease in the performance of the material of the connection release structure. Moreover, the doctor can release a plurality of hemostatic clips to clamp the lesions at a time by inserting the continuous ligation device, which can greatly reduce the operation time, obtain the most powerful rescue time for the patient and the medical staff, and greatly reduce the labor intensity. Reducing medical waste is good for environmental protection.

The content described in the embodiments of the present specification is merely an enumeration of the implementation forms of the inventive concept, and the scope of the present invention should not be construed as being limited to the specific forms stated in the embodiments. Equivalent technical means that a person can think of in accordance with the inventive concept.

Claims

A continuous hair ligating device comprising a clamping portion and a conveying control portion, characterized in that:

The clamping portion includes a clip set and a receiving tube accommodating the clip set, the clip set includes at least two clips arranged along the axial direction of the receiving tube, each clip including a pair of clips, The clip tail portion is provided with a carrier sheet which is deformed or destroyed under a predetermined pressure, and the clip piece forms a hole portion through the carrier sheet;

The conveying control unit includes a pulling line, a pushing tube and a control handle, wherein the pulling line runs through the pushing tube, and the control handle is respectively connected with the pushing tube and the rear end of the pulling line to drive the pulling Wire to operate the clip;

Wherein the traction wire passes through the hole formed by the carrier sheet and the front end portion of the traction wire is blocked by the carrier sheet, and when the clip is released, the pressure of the carrier sheet at the front end portion of the traction wire Deformation or destruction occurs such that the clip is disengaged from the conveyance control portion.
The hair ligature ligation apparatus according to claim 1, wherein the clips are disposed in the storage tube in abutment with each other.
The bursting and ligating device according to claim 1, wherein a spacer is disposed between the adjacent two of the clips.
The burst ligating device according to claim 1, wherein the pulling wire is provided with a pushing member located at a rear end of the clip group or between two adjacent clips.
The ligation device according to any one of claims 1 to 4, characterized in that the tail portion of each of the clips has at least one carrier sheet, and the carrier sheet is assembled to form a non-closed hole portion.
The hair ligature device according to any one of claims 1 to 4, wherein the carrier sheet is provided only on one of the clips, and the carrier sheet forms the hole portion with the tail portion of the other clip.
The ligature ligation device according to any one of claims 1 to 4, wherein the tail portions of the two clips are curved bent arms, and the bent arms cross each other such that the clip tail portion The tail portions of the bending arms are each provided with at least one carrier sheet, and the carrier sheets are assembled to form the non-closed holes.
The hair ligature ligation device according to any one of claims 1 to 4, wherein the pair of clips are partially symmetrical and integrally bent, and the tail portion of the unbent portion of the clip has Undertake The carrier, the carrier sheet and the symmetrically bent portion of the clip constitute the hole portion.
The ligature ligation device according to any one of claims 1 to 4, wherein the control handle comprises a handle body, a guide tube penetrating inside the handle body, and a sliding connection connected to a rear end of the guide tube a handle, the sliding handle is sleeved on the handle body, the rear end of the push tube is adjacent to the front end of the guide tube, and the rear end of the pull line passes through the guide tube;

The rear end of the traction wire is provided with a sliding seat sliding along the handle body, and the handle body is provided with a front end limiting portion, and the sliding distance of the sliding seat is restricted by the front end limiting portion.
The ligature ligation device according to any one of claims 1 to 4, wherein the control handle comprises a handle body, a guide tube penetrating the handle body, and a slide handle connected to a rear end of the guide tube The sliding handle is sleeved on the handle body so as to be slidable back and forth, the rear end of the pulling wire runs through the inside of the guiding tube, and the rear end end of the pulling wire is connected with the sliding handle, The sliding handle can drive the traction line to move back and forth.
The bursting and ligating device according to claim 10, wherein the handle body is provided with a limiting protrusion, and the sliding handle is hindered when reaching the limiting protrusion.
The burst ligating device according to claim 10, wherein the handle body is provided with a detachable limit card that hinders movement of the sliding handle.