CN107106181B

CN107106181B - Continuous hair ligation device

Info

Publication number: CN107106181B
Application number: CN201580050072.XA
Authority: CN
Inventors: 时百明
Original assignee: Hangzhou Ags Medtech Co ltd; Hangzhou Anjisi Medical Science And Technology Co ltd
Current assignee: Hangzhou Ags Medtech Co ltd; Hangzhou Anjisi Medical Science And Technology Co ltd
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2020-03-24
Anticipated expiration: 2035-10-23
Also published as: WO2017066986A1; CN107106181A

Abstract

The invention provides a continuous ligation device, which comprises a clamping part and a conveying control part, wherein the clamping part comprises a clip group and a containing pipe for containing the clip group, the clip group comprises at least two clips which are axially arranged along the containing pipe, each clip comprises a pair of clamping pieces, the tail parts of the clamping pieces are provided with bearing pieces which can deform or damage under preset pressure, and the clamping pieces form hole parts through the bearing pieces; the conveying control part comprises a traction wire; wherein the pull wire passes through the hole part formed by the carrier sheet and the front end part of the pull wire is blocked by the carrier sheet. By adopting the continuous hair ligation device, the release process of each clip can be ensured to be stable and reliable, and the risk of unsuccessful clip release caused by the performance reduction of the material of the connection release structure can be avoided; and the doctor can release a plurality of hemostatic clips to clamp the focus part by inserting the continuous hair ligation device once, thereby greatly reducing the operation time.

Description

Continuous hair ligation device

Technical Field

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

Background

The endoscope has gone through the stages from disease diagnosis to disease treatment for more than 50 years, and has been effective and reliable in treating some diseases. The stomach and intestinal tract of an organism often cause bleeding or mucosal injury or even perforation due to various diseases or accidental injury or injury in endoscopic surgery. The active hemorrhage is generally treated by medicine spraying, a method of burning a bleeding point by high-frequency electricity, laser and argon, a method of mechanical compression hemostasis by a clamp and the like. The mechanical compression hemostasis by the clamp has a reliable treatment effect on the active hemorrhage caused by the non-varicose vein, is accepted by doctors and patients, and is used as the most effective means nowadays; at present, the invasion degree of clinical operation is gradually increased to gradually increase the injury of the digestive tract, the clip is used for closing the mucosa injury of the digestive tract to a certain degree in clinic to promote the wound healing, the small perforation of the digestive tract can be effectively closed, the effect is gradually approved in clinic, and the wound of the patient caused by the open surgery can be avoided.

WO2006/098994 discloses a hair clip device comprising: a conduit portion; an operating cable disposed within the conduit and adapted to be advanced and retracted through the conduit; separable clips, each clip comprising an engaging portion, a plurality of jaws, and a slidable collar disposed on the jaws, the collar being movable between a first position when the clip is open and a second position when closed, the slidable collar allowing the jaws to move toward each other when the jaws are in the second position, the slidable collar comprising an expandable member movable between a compressed position when the clip is within the catheter and an expanded position when at least a portion of the clip is in the forward position of the catheter, the expandable member being at the forward portion of the catheter when the expandable member is in the expanded position; wherein the separable clips are comprised of at least a front clip and a back clip within the catheter, and the front clip is disposed distally of the back clip in a serial manner.

The disadvantage of this burst clamp device is that when force is applied to the front-most one of the clamps, it is necessary to transmit the force through the subsequent clamps, and therefore the strength of the latter clamps is gradually increased, and if the front-most clamp is not successfully released, the rear clamp fails due to excessive tension, and a new instrument needs to be replaced, which may lead to delayed operation time. Secondly, the rear clips are subjected to a certain force when the front-most clip is released, and therefore the performance of the clip is somewhat impaired, which may lead to inconsistent stability and reliability of each clip.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a continuous hair ligation apparatus which can release clips well, and can adjust the angle of the clip by rotation, so that a doctor can align a lesion at a better angle and can effectively clamp a lesion tissue.

In order to achieve the purpose, the invention adopts the following technical scheme.

The invention relates to a continuous-firing ligation device, which comprises a clamping part and a conveying control part, wherein the clamping part comprises a clamp group and a containing pipe for containing the clamp group, the clamp group comprises at least two clamps which are axially arranged along the containing pipe, each clamp comprises a pair of clamping pieces, the tail parts of the clamping pieces are provided with bearing pieces which can deform or damage under preset pressure, and the clamping pieces form hole parts through the bearing pieces;

the conveying control part comprises a traction wire, a pushing pipe and a control handle, the traction wire penetrates through the pushing pipe, and the control handle is respectively connected with the pushing pipe and the rear end of the traction wire so as to drive the traction wire to operate the clamp;

when the clip is released, the carrier sheet deforms or breaks under the pressure of the front end of the pull wire, so that the clip is separated from the delivery control part.

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

Preferably, a spacer is arranged between two adjacent clips.

Preferably, the traction line is provided with a pushing-out piece, and the pushing-out piece is positioned at the rear end of the clip group or between two adjacent clips.

Preferably, the tail part of each clamping piece is provided with at least one bearing piece, and the bearing pieces are assembled to form a non-closed hole part.

Preferably, the carrier is provided on only one clip, the carrier forming the aperture with the tail of the other clip.

Preferably, the tails of the two clamping pieces are bent arms, the bent arms are mutually crossed to enable the tails of the clamping pieces to be connected, the tails of the bent arms are respectively provided with at least one bearing piece, and the bearing pieces are assembled to form the non-closed hole parts.

Preferably, the pair of clamping pieces are formed by bending the clamping pieces symmetrically, the tail parts of the parts, which are not bent, of the clamping pieces are provided with bearing pieces, and the bearing pieces and the symmetrical bent parts of the clamping pieces form the hole parts.

Preferably, the control handle comprises a handle body, a guide tube penetrating through the interior of the handle body, and a sliding handle connected to the rear end of the guide tube, the sliding handle is slidably sleeved on the handle body back and forth, the rear end of the pushing tube is adjacent to the front end of the guide tube, and the rear end of the traction wire penetrates through the guide tube;

the rear end tip of pull wire is provided with follows the gliding sliding seat of handle body, set up front end spacing portion on the handle body, the sliding distance of sliding seat receives the restriction of front end spacing portion.

Preferably, the control handle comprises a handle body, a guide tube penetrating through the handle body, and a sliding handle connected to the rear end of the guide tube, the sliding handle is slidably sleeved on the handle body in a front-back direction, the rear end of the traction wire penetrates through the guide tube, and the rear end of the traction wire is connected with the sliding handle, so that the sliding handle can drive the traction wire to move back and forth.

Preferably, the handle body is provided with a plurality of limiting protrusions, the sliding handle is obstructed when reaching the limiting protrusions, the distance between each limiting protrusion is one clip or more than one clip, or the effective distance between the limiting protrusion and the sliding handle is more than the effective length of one clip.

Preferably, the handle body is provided with a plurality of limiting clamps which block the sliding handle from moving or can be detached, and the interval between the two limiting clamps is greater than the length of the clamp or the effective distance between the limiting clamps and the sliding handle is greater than the effective length of the clamp.

Compared with the prior art, the continuous hair ligation device can ensure that the releasing process of each clip is stable and reliable, and the risk of unsuccessful clip release caused by the performance reduction of the material of the connecting and releasing structure is avoided. And the doctor can release a plurality of hemostatic clips to clamp the focus part by inserting the continuous hair ligation device once, so that the operation time can be greatly reduced, the most powerful rescue time is strived for patients and medical care personnel, the labor intensity is greatly reduced, and the reduction of medical waste is favorable for environmental protection.

In addition, the connection between the clamp and the traction line is arranged in the tightening pipe or the locking pipe, so that the length of the clamp is greatly shortened, the clamp is simpler and more reliable, the structure is shorter, the clamp is more suitable for passing through a bent endoscope channel, and a ligation device which can be widely applied to all parts of the digestive tract is provided for clinicians.

Drawings

Fig. 1 is a schematic view of the overall construction of a ligation device according to the present invention;

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

FIG. 3 is a schematic structural view of a second embodiment of the clip set of the present invention;

FIG. 4 is a schematic structural view of a third embodiment of the clip set of the present invention;

FIG. 5 is a cross-sectional view of a first embodiment of the cinch tube and stop tube of the present invention;

FIG. 6 is a cross-sectional view of a second embodiment of the cinch tube and stop tube of the present invention;

FIG. 7 is a cross-sectional view of a third embodiment of the cinch tube and stop tube of the present invention;

FIG. 8 is a cross-sectional view of a fourth embodiment of the cinch tube and stop tube of the present invention;

FIG. 9 is a cross-sectional view of a fifth embodiment of the cinch tube and stop tube of the present invention;

FIG. 10 is a schematic structural view of one embodiment of a clip of the present invention;

FIG. 11 is a schematic view of a first assembly of a pair of clips in accordance with the present invention;

FIG. 12 is a schematic view of a second assembly of a pair of clips in accordance with the present invention;

FIG. 13 is a schematic view of a third assembly of a pair of clips in accordance with the present invention;

FIG. 14 is a schematic view of a fourth mode of assembly of a pair of clips in accordance with the present invention;

FIG. 15 is a schematic view of a fifth alternative form of assembly of a pair of clips in accordance with the present invention;

fig. 16 is a schematic cross-sectional configuration diagram of a first embodiment of a conveyance control section of the present invention;

fig. 17 is a schematic cross-sectional configuration diagram of a second embodiment of the conveyance control section of the present invention;

fig. 18 is a schematic cross-sectional structure view of a third embodiment of the conveyance control section of the present invention;

fig. 19 is a schematic cross-sectional configuration diagram of a modification of the third embodiment of the conveyance control unit according to the present invention.

Detailed Description

Preferred embodiments of the ligation device according to the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1, 2 and 3, the ligation device of the invention comprises a clamping part 1 and a conveying control part 2, wherein the clamping part 1 comprises a clip group and a receiving tube 10 for receiving the clip group, the receiving tube 10 has a spring spiral structure, the clip group comprises at least two clips 11 axially arranged along the receiving tube 10, and each clip 11 comprises a pair of

clamping pieces

111 and 112; the conveying control part comprises a traction wire 21, a push pipe 22 and a control handle, the front end of the traction wire 21 penetrates through the clamp group, the rear end of the traction wire 21 penetrates through the push pipe 22, and the control handle is connected with the rear ends of the push pipe 22 and the traction wire 21 respectively to drive the traction wire 21 to operate the clamp.

Preferably, the pull wire 21 extends through each clip, and the pull wire 21 may also be provided with a pull tip 212 at the forward end of the lead clip, the pull tip 212 being located at the forward end of the lead clip. The pull tips 212 can be used to close and release each clip one by one.

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

(I) a clamping part

< clip >

The clip 11 includes a pair of

clip pieces

111 and 112, the tail portions of which are provided with carrier pieces that are deformed or broken under a predetermined pressure, and the clip pieces having hole portions formed at the tail portions thereof by the carrier pieces (the formation of the hole portions will be described in detail later); the clamp 11 may further include a tightening tube 12 for tightening the rear end of the clip, the tightening tube 12 may be substantially tubular, the rear end of the tightening tube may further be provided with a stop tube 13, and the stop tube 13 may be made of high-performance polymer material, such as PA (amide), nylon, liquid crystal polymer, PPA (polyphthalamide), or high-elasticity metal material formed by mechanical processing, punch forming, powder metallurgy, or other processes.

There are various embodiments of the stopper tube and the cinch tube.

For example, as one embodiment, as shown in fig. 5, the front end of the stop tube 13 is provided with a stop step 131, and when the clip 11 is pulled backwards through the tightening tube 12 and into the inner hole of the stop tube 13, the carrier at the tail of the clip abuts against the stop step 131 of the stop tube, thereby preventing the clip 11 from continuing to easily enter the stop tube 13, and simultaneously, the clip contacts with the inner wall of the stop tube 13, preventing the clip 11 from being removed therefrom. The rear end of the stopper tube 13 is provided with a catching portion 132, and the catching portion 132 has an elastic deformation function. When the jaws are pressed to deform closer together, the latch portion 132 of the stopper tube 13 compresses elastically inward, and when the pressure is removed, the latch portion 132 returns to the open state.

As a second embodiment of the cinch tube, as shown in FIG. 6, the cinch tube 12 is assembled with two pin members 122 with a space therebetween that allows the pull wire 21 and the pull tip 212 to pass therethrough. As a third embodiment of the cinch tube, as shown in FIG. 7, the cinch tube is provided with two bends 123, leaving a space between the bends 123 that allows the pull wire 21 and the pulling tip 212 to pass through.

As a fourth embodiment of the cinch tube, as shown in fig. 8, the cinch tube 12 and the stopper tube 13 are integrated into a single body, which is substantially barrel-shaped, made of a medical grade elastic metal material such as stainless steel, nitinol, cobalt chromium molybdenum, etc., and provided with an inner bending structure 136 that is bent inward and an outer bending structure 134 that is bent outward. The end on the left side of which functions as the end of the cinch tube 12. The inner bend 136 prevents the clip from retracting into the cinch tube when it is pushed out, and the outer bend 134 functions as the latch 132 of the tube 13 in embodiment 1, is compressed inward, and can be withdrawn by external force to spring open in time.

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 off.

< clip set >

There are various ways of combining the individual clips into a clip set. As one embodiment, as shown in fig. 2, the clips in the clip set are arranged together end to end and are received in the receiving tube 10. The front end of the clamping piece is provided with a hollow groove for allowing the traction wire to pass through.

Furthermore, a spacing pipe can be additionally arranged between every two clamps in the clamp group to space every clamp, so that the damage caused by interaction between the clamps or the failure of instruments caused by the fact that the end face of the accommodating pipe 10 cannot be accommodated in the accommodating pipe due to the fact that the rear clamp is excessively exposed when the clamps are pushed out can be prevented. It should be noted that the internal bore of the spacer tube is larger than the outer diameter of the pulling tip, which allows the pulling tip to pass through the spacer tube internal bore to the location of the next clip to enable control of the next clip.

Of course, other embodiments of the clip set of the present invention are possible, for example, as shown in fig. 3, a pushing member 216 is fixed on the traction line at the rear end of each clip, the pushing member 216 is in a cone shape with a larger front end and a smaller rear end, the diameter of the larger end is larger than the minimum diameter or width of the inner hole of the stopping tube 13, and the pushing member 216 can push the stopping tube 13 to move the whole clip 11 to the front end under the pushing and pulling action. The large end diameter of the pushing member 216 is smaller than the effective size of the slot or hole formed in the tail 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 slot or hole formed in the tail of the clip without damaging the clip structure.

As shown in fig. 4, the forward end of the pusher member 216 may also be supplemented with a spacer tube 14, which is generally cylindrical in shape with a through-going slot in the sidewall thereof, to allow the pulling tip 212 to pass through its internal bore to the next clip 11 position.

< clip >

As shown in fig. 10 to 15, the clip is provided at the rear portion thereof with a carrier 113 which is deformed or broken by a predetermined pressure, the clip is formed at the rear portion with a hole portion 114 through the carrier 113, the pull wire 21 passes through the hole portion 114 formed in the carrier 113 and the front end portion of the pull wire 21 is blocked by the carrier 113 so that the pull wire cannot be released from the hole portion, and when the clip 11 is released, the carrier 113 is deformed or broken by the pressure of the front end portion of the pull wire so that the clip 11 is released from the feed control part 2.

There are a variety of ways of assembly between the clips, as will be shown in more detail below.

First assembling mode of clamping piece

As shown in fig. 10-11, in the present embodiment, the front end of the clip has a front hook 11a, the front hook 11a is connected to the clip body 11b at the rear end, the clip body is provided with a bent arm 11c at the rear end, the tail parts of the two clip bent arms are connected together to enable the two clips to move synchronously, and the bent arm parts of the two clips keep a certain distance; a stopper 11d is provided on the rear end side of the clip body 11 b. At least one (in this embodiment, one) carrier plate 113 is provided at the end of each clip, and the carrier plates are assembled to form an unclosed hole 114.

For example, the tail of the bending arm is respectively provided with a synchronizing piece 11e and a synchronizing groove 11f, the synchronizing piece 11e of the clamping piece 111 is clamped into the synchronizing groove 11f of the clamping piece 112, and the synchronizing piece 11e of the clamping piece 112 is clamped into the synchronizing groove 11f of the clamping piece 111, so that the tails of the clamping

pieces

111 and 112 are connected together; or the tail parts of the bending arms of the two clamping pieces can be provided with pin holes, and the two clamping pieces are connected together through pins. It should be noted that the connection manner of the clip tail is not limited to the above-mentioned ones, as long as the synchronous movement of the two clips can be realized. In addition, the two clamping pieces can be respectively provided with a spacing table 18 which is respectively abutted with the bending arm of the other clamping piece, so that the bending arms of the two clamping pieces keep a certain distance.

Second assembling mode of clamping piece

As shown in fig. 12, the tail portions of the two clips have two carrier sheets, the

carrier sheets

1132A and 1132B are respectively disposed on the upper and lower portions of the tail portion of the clip 111, the

carrier sheets

1131A and 1131B are respectively disposed on the upper and lower portions of the tail portion of the clip 112, a non-closed slot portion 1141 is formed between the

carrier sheets

1131A and 1132A non-closed slot 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 and 1132A

lower carrier sheets

1131B and 1132B.

The clip tails are connected to the synchronization slots by the synchronization plate structure described above, but the two clips may also be provided with pin holes, which may be connected by pins. It should be noted that the connection mode of the clip tail is not limited as long as the two clips can move synchronously.

Third assembling mode of clamping piece

As shown in fig. 13, only two bearing plates 113 are disposed on the clamping plate 111, and the two bearing plates 113 are assembled with the tail portions of the clamping arms 112 to form an unclosed hole portion 114 ".

Fourth assembling mode of clamping piece

As shown in fig. 14, the bent arms 11c of the clip tail portions form a cross structure crossing each other so that the clip tail portions are connected together. The curved arm 11c is provided with an eccentric curved arm 11c2 structure, and two adjacent borderlines are located at one side of the clip center line, so that the two curved arms 11c cross at one position without affecting the movement of each other. At least one bearing sheet 113 (one in the embodiment) is arranged at the tail part of each of the two bending arms, and an unclosed hole part 114' is formed between the bearing sheets through assembly. The side line of the wide bending part 11c1 of the bending arm exceeds the center line of the clip, when the two clips of the clip are closed, the two wide bending parts 11c1 are abutted with each other, and are pressed and folded in the tightening pipe 12, and the two wide bending parts 11c1 will generate a certain elastic force outwards to keep the clip and the tightening pipe together more firmly, so that the clip is closed more tightly. Such a configuration of the eccentric curved arms may be more conducive to a greater degree of opening of the jaws, which may allow more tissue to be held when the jaws are closed.

Fifth assembling mode of clamping piece

As shown in fig. 15, the lower half sections of the two clip tails are integrally formed (i.e. a pair of clips are formed by bending the two clips symmetrically), the upper half sections of the two clip tails (the tails of the non-bent parts) are respectively provided with a carrying sheet 113, a gap 161 is formed between the two carrying sheets 113, and the carrying sheets and the tails of the clips form a non-closed hole 114 "" together at the symmetrical bent part 141.

The invention adopts the mode of arranging the bearing structure which can be deformed and loosened at the tail end of the clamping piece, can ensure that the releasing process of the clamp is stable and reliable, and can not generate the risk of unsuccessful clamp releasing caused by the performance reduction of the connecting and releasing structure material. The clamp is creatively connected with the traction line and arranged in the tightening pipe or the stopping pipe, so that the length of the clamp is greatly shortened, the clamp is simpler and more reliable, the structure is shorter and shorter, the clamp is more suitable for passing through a bent endoscope channel, a ligation device which can be widely applied to each part of the digestive tract is provided for clinicians, the operation time can be greatly reduced, and the most powerful rescue time is strived for patients and medical care personnel.

< conveyance control section >

The conveying control part comprises a traction wire 21, a push pipe 22 and a control handle, the front end of the traction wire 21 penetrates through the clamp group, the rear end of the traction wire 21 penetrates through the push pipe 22, and the control handle is connected with the rear ends of the push pipe 22 and the traction wire 21 respectively to drive the traction wire 21 to operate the clamp.

In the present invention, the conveying control part can be implemented in various ways, and a detailed description is provided below.

First embodiment

As shown in fig. 1 and 16, the control handle of the present invention includes a handle body 231, a guide tube 232 penetrating through the handle body 231, and a sliding handle 233 connected to a rear end of the guide tube 232, wherein the sliding handle 233 is slidably sleeved on the handle body 231 in a front-rear direction, a rear end of the push tube 22 is adjacent to a front end of the guide tube 232, and a rear end of the pull wire 21 penetrates through the guide tube 232. The guide tube 232 can push the push tube 22 forward when the slide handle 233 is pushed forward.

The rear end of the pull wire 21 is provided with a sliding seat 211 sliding along the handle body 231, the handle body 231 is provided with a front end limiting part, and the sliding seat 211 can slide to the front end limiting part furthest. When the conveying part structure is used, the sending clip device is inserted into a clamp channel of an endoscope, the most front end of the sending clip device penetrates through a screen to expose a clamp channel port, at the moment, the sliding handle 233 is pushed forwards to drive the guide tube 232 to move towards the front end, when the front end of the guide tube 232 is connected with the rear end of the pushing tube, the pushing tube is driven to move towards the front end, when the front end of the pushing tube is contacted with the last clip, the pushing tube is driven to move towards the front end together, the last clip 11 transmits pushing force to adjacent clips in front of the last clip and drives the clips in front to move together, and finally each clip is driven to move towards the front end together, the clip 11 at the most front end can pull the traction wire 21 to move towards the front end, but when the sliding seat 211 is contacted with the limit part at the front end, the pulling end 212 fixed at the front end of the traction wire 21 can keep relatively fixed and kept in a reasonable range relative to the end surface position of, a length approximately slightly greater than the effective length of one clip 11 is exposed to ensure that the clip 11 can be pushed completely out of the receiving tube 10 and to allow only one clip 11 to be pushed out of the receiving tube 10. When the foremost clip 11 is completely withdrawn from the storage tube 10 and cannot move further to the front under the action of the pulling tip, the elastic catch 131 of the stopper tube 12 springs outward, and its minimum circumscribed circle diameter is larger than the inner diameter of the end face of the storage tube 10. The sliding handle 233 is pulled backward, and when the rear end of the sliding handle contacts the sliding seat 211, the pulling wire 21 is driven to move backward, and the clip 11 is driven to approach the accommodating tube 10, and when the stop surface of the stop tube 13 contacts the end surface of the accommodating tube 10 and is clamped between the adjacent clips, the handle body 231 can be rotated, which drives the sliding seat 211 and the pulling wire 21 connected to the sliding seat to rotate, and transmits torque to the front end to drive the clip to rotate. Therefore, the angle between the clamp and the focus can be adjusted by a doctor according to the requirement of the focus condition so as to better align the focus. And then the sliding handle 233 is pulled continuously, the pulling end 212 is in contact with the bearing sheet 113 arranged on the clip piece and drives the clip to move towards the rear end, the clip is gradually closed, the movement is stopped after the stop end of the clip is in contact with the end surface of the tightening pipe 12 assembled at the front end of the stop pipe 13, the clip is completely closed, then the pulling force is continuously applied, when the pulling force is greater than the preset pulling force value, the pulling end 212 breaks the bearing sheet and pushes out the bearing sheet from the hole groove 114 of the clip assembled together, so that the clip is separated from the pulling wire 21, and the clip is released. At this time, pushing the slide handle 233 forward repeats the previous force transmission process, and exposes the current foremost clip 11 to the front end face of the storage tube 10, pulling the slide handle repeats the previous force transmission process, and then releasing the current foremost clip, and in this way, by reciprocating operation, all clips are pushed out of the storage tube 10 one by one and released one by one.

Second embodiment

As shown in fig. 17, the control handle according to the present invention as a second embodiment of the delivery control unit includes a handle body 231, a guide tube 232 inserted into the handle body 231, and a slide handle 233 connected to a rear end of the guide tube 232, wherein the slide handle 233 is slidably fitted to the handle body 231 in the front-rear direction, a part of a front end of the guide tube is connected to the push tube, a rear end of the pull wire 21 is inserted into the guide tube 232, and a rear end of the pull wire 21 is connected to the slide handle 233. The slide handle 233 moves the traction wire 21 forward and backward.

By adopting the conveying control structure, the continuous hair clip device is inserted into a focus position through an endoscopic forceps channel opening at the beginning, the sliding handle 233 is pushed to the front end and drives the traction wire 21 to move towards the front end, the pushing part fixed on the continuous hair clip device is driven to move towards the front end through the movement of the traction wire 21, the clip is driven to move towards the front end after the pushing part is contacted with the stop part of the clip, when the front-end clip is pushed out of the accommodating tube 10, the continuous hair clip device is leaned towards the focus position through an endoscopic forceps, the sliding handle 233 and the traction wire 21 fixed on the sliding handle are driven to rotate through the rotating handle body 231, the traction wire 21 transmits torque to a pulling end, the pulling end is clamped in the clip 11 and drives the clip to rotate, so as to adjust the angle of the clip relative to the focus, a doctor can better clamp the focus, the sliding handle 233 is pulled after aiming at the focus and drives the traction wire fixed on the sliding handle to move towards the rear, after the pulling end is contacted with the bearing piece of the clamping piece, the clamping piece is driven to move towards the rear end, the clamping piece is completely closed after the stopping end of the clamping piece is contacted with the end surface of the tightening pipe, the clamping piece can not move any more, the pulling force is continuously applied at the moment, the bearing piece of the clamping piece is damaged, and the pulling end is separated from the clamping piece at the moment, so that the pulling line is separated from the clamp 11, and the clamp is released. The sliding handle is pushed continuously to drive the second clamp 11 to be exposed out of the accommodating tube 10, the sliding handle is pulled to enable the traction wire to retract towards the rear end, the first pushing piece passes through the hole groove of the clamping piece, the pulling end is contacted and clamped with the clamping piece, and therefore the second clamp can be released by repeating the pulling-off process of the previous clamp until the last clamp is released, and the instrument is used.

Third embodiment

As shown in fig. 18, the third embodiment of the conveyance control unit is modified from the second embodiment. The handle body 231 may be provided with a plurality of limiting protrusions 2314, and the sliding handle 233 may be stuck or blocked when reaching the limiting protrusions 2314, but when the doctor pushes or pulls the sliding handle with a large force, it may still go over the limiting protrusions and move continuously. The spacing of the limiting protrusions is just equal to or slightly larger than the distance of pushing out one clip, so that a doctor can play a role in prompting when pushing out the clips, and the situation that a plurality of clips are pushed out continuously due to excessive force is prevented.

Or, as shown in fig. 19, a plurality of movably connected limit clips 2315 may be additionally arranged on the handle body 231, a certain friction force is provided between the limit clips and the handle body 231, so as to prevent the sliding handle from moving, and a certain distance is provided between the two limit clips, the distance is slightly greater than the length of the clip, when the sliding handle 233 is pushed to reach the limit clips 2315, the limit clips can prevent the sliding handle from continuing to move, when the clip needs to be released continuously, the limit clips 2315 are removed to enable the sliding handle 233 to continue to move, or the pushing force applied to the sliding handle 233 can be increased to drive the limit clips 2315 to move together to reach the next limit clip 2315 and stop, so that the second clip can be pushed out of the storage tube 10. Continuing this process, the clips are pushed out of the storage tube 10 one by one and released one by one, thereby completing the operation.

By adopting the continuous hair ligation device, the release process of each clip can be ensured to be stable and reliable, and the risk of unsuccessful clip release caused by the performance reduction of the material of the connection release structure can be avoided. And the doctor can release a plurality of hemostatic clips to clamp the focus part by inserting the continuous hair ligation device once, so that the operation time can be greatly reduced, the most powerful rescue time is strived for patients and medical care personnel, the labor intensity is greatly reduced, and the reduction of medical waste is favorable for environmental protection.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.

Claims

1. The utility model provides a running fire ligation device, includes clamping part, transport control portion, its characterized in that: the clamping part comprises a clamp group and a containing pipe for containing the clamp group, the clamp group comprises at least two clamps which are axially arranged along the containing pipe, each clamp comprises a pair of clamping pieces, the tail parts of the clamping pieces are provided with bearing pieces which can deform or damage under preset pressure, and the clamping pieces form hole parts through the bearing pieces;

when the clip is released, the carrier sheet deforms or breaks under the pressure of the front end of the traction wire so that the clip is separated from the delivery control part; the traction line is provided with a pushing-out piece, and the pushing-out piece is positioned at the rear end of the clip group or between two adjacent clips; the push-out piece can cross the groove or hole formed at the tail of the clamping piece without damaging the clamping piece structure.

2. The device according to claim 1, wherein the clips are disposed in the receiving tubes in abutting relationship end to end.

3. The hair ligating device of claim 1 wherein a spacer is disposed between two adjacent clips.

4. The ligation device according to any one of claims 1 to 3 wherein the tail of each clip has at least one carrier which when assembled forms a non-closed aperture.

5. The hair ligation device according to any one of claims 1 to 3 wherein the carrier is provided on only one clip and forms the aperture with the tail of the other clip.

6. The hair ligation device according to any one of claims 1 to 3, wherein the tails of the pair of clips are curved arms, the curved arms are intersected with each other such that the tails of the clips are connected, and the tails of the curved arms are each provided with at least one carrier piece, which are assembled to form the non-closed hole.

7. The hair ligation device according to any one of claims 1 to 3, wherein the pair of clips are integrally and symmetrically bent, and the tail of the unfolded portion of the clip is provided with a carrying piece, and the carrying piece and the symmetrically bent portion of the clip constitute the hole portion.

8. The device according to any one of claims 1 to 3, wherein the control handle comprises a handle body, a guide tube penetrating the interior of the handle body, and a sliding handle connected to a rear end of the guide tube, the sliding handle is slidably sleeved on the handle body back and forth, a rear end of the pushing tube is adjacent to a front end of the guide tube, and a rear end of the pulling wire penetrates through the guide tube; the rear end tip of pull wire is provided with follows the gliding sliding seat of handle body, set up front end spacing portion on the handle body, the sliding distance of sliding seat receives the restriction of front end spacing portion.

9. The device according to any one of claims 1 to 3, wherein the control handle comprises a handle body, a guide tube penetrating through the handle body, and a sliding handle connected to a rear end of the guide tube, the sliding handle is slidably fitted over the handle body in a forward and backward direction, a rear end of the pulling wire penetrates through the guide tube, and a rear end of the pulling wire is connected to the sliding handle, so that the sliding handle can move the pulling wire forward and backward.

10. The device of claim 9, wherein the handle body is provided with a stop protrusion, and the sliding handle is obstructed when reaching the stop protrusion.

11. The device according to claim 9, wherein the handle body is provided with a removable stopper that blocks the movement of the sliding handle.