CN210204831U

CN210204831U - Continuous-firing hemostatic clamp device

Info

Publication number: CN210204831U
Application number: CN201920648609.8U
Authority: CN
Inventors: Guolai Li; 李国来; Dongming Li; 李东明; Jiazhen Xu; 徐嘉镇
Original assignee: Jiangsu Chang Mei Medical Devices Co Ltd
Current assignee: Jiangsu Chang Mei Medical Devices Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-03-31
Anticipated expiration: 2029-05-08

Abstract

The utility model relates to a continuous-firing hemostatic clamp device, which comprises a plurality of hemostatic clamps and a spring tube component, wherein the hemostatic clamps are sequentially meshed together to form a hemostatic clamp string component; a tube hole is formed in the spring tube component and is suitable for accommodating the hemostatic clamp string component to move in the tube hole; the hemostatic clamp comprises a clamp and a clamp seat; after the front hemostatic clamp is moved out of the tube hole, the clamping opening of the front clamp is naturally opened; the posterior hemostatic clamp bites the anterior clamp and moves backwards until the anterior clamp is disengaged, and the opening of the anterior clamp is naturally opened, changed into opening expansion, and finally occluded and locked. The in-process that can internal hemostasis operation can carry out the running hair operation to, the mouth of pressing from both sides of hemostasis clamp is after opening naturally, can advance one step expansion after carrying out the shrink interlock, promotes the hemostasis area of hemostasis clamp.

Description

Continuous-firing hemostatic clamp device

Technical Field

The utility model relates to the field of medical equipment, concretely relates to running fire hemostasis clip device.

Background

The hemostasis operation under the endoscope is an effective method, because the pathological changes can be seen, different hemostasis methods can be adopted according to specific conditions, wherein hemostasis by a hemostatic clamp is a common method. The principle is that the mechanical force of the clamp is utilized to clamp a tissue wound or a blood vessel to close the blood vessel, so as to play a role in stopping bleeding, and after several days, the wound is healed, and the clamping head falls off and is discharged out of the body along the digestive tract. The mechanical hemostasis of the endoscope hemostatic clamp only causes minimal damage to mucous membranes around wounds, can directly clamp and close macroscopic hemorrhagic vessels and focus, and is particularly suitable for arteriole rupture hemorrhage.

In the inner diameter hemostatic clamp device used in the current market, only one hemostatic clamp assembly is arranged, and the hemostatic clamp assembly is of a single-hair structure, the whole hemostatic clamp device needs to be taken out after one hemostatic clamp assembly is used up, and then a new hemostatic clamp device is replaced to be inserted into a human body again for hemostasis.

For the defect that a client has a single hemostatic clamp at present, my research and develop a 'continuous-hair hemostatic clamp device', and apply a patent in 2018, wherein the patent application number is as follows: CN 201811541423.9; the running hair hemostasis device of applying for before can satisfy the operation of clip running hair, but it still has some defects, specifically is, after the clip stretches out the end cap, and the angle of opening of clamping piece is the state that opens naturally, and when the clip of back way clip area front track moved the centre gripping work backward, the front track clip directly carried out the interlock operation, that is to say, the course of operation of front track clip among this hemostasis clip device of applying for the last year is: stretching out the clip → naturally opening the clip → occluding the clip; because the front clip is arranged in the spring tube most of the time before extending out of the end cap, after the front clip is extended out, the opening angle of the clip is not very large, if the tissue wound is large, but the natural opening angle of the clip is not so large, the hemostatic operation cannot be realized, if the clip is required to obtain a large opening under the natural opening condition, the clip is required to be processed and manufactured by using more expensive materials, and the manufacturing cost is increased.

In summary, in the existing continuous hair hemostasis clip, the opening of the clip can only be opened naturally by the elasticity of the clip, the size of the opening can not be enlarged, and the hemostasis can only be performed on small wounds.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the continuous-hair hemostatic clip device is provided, and the defects that the clip opening can only be opened naturally by means of the elasticity of the clip, the size of the clip opening cannot be enlarged, and hemostasis can only be performed on small wounds in the conventional continuous-hair hemostatic clip device are overcome.

The utility model provides a technical scheme that its technical problem adopted is: a continuous-firing hemostatic clamp device comprises a plurality of hemostatic clamps, wherein the hemostatic clamps are sequentially meshed together to form a hemostatic clamp string assembly; and

the spring tube assembly is internally provided with a tube hole and is suitable for accommodating the hemostatic clamp string assembly to move in the tube hole;

the hemostatic clamp comprises a clamp and a clamp seat;

after the front hemostatic clamp is moved out of the tube hole, the clamping opening of the front clamp is naturally opened;

the posterior hemostatic clamp bites the anterior clamp and moves backwards until the anterior clamp is disengaged, and the opening of the anterior clamp is naturally opened, changed into opening expansion, and finally occluded and locked.

Further, the clip of the hemostatic clip comprises a first clip piece and a second clip piece;

the front end of each clamping piece is respectively provided with an occlusion part, and the rear end of each clamping piece is respectively provided with an engagement supporting part which is suitable for being matched with the occlusion part of the other clamping piece;

the two engaging portions of the front end of the clip engage the two engaging support portions of the rear end of the other clip to engage and connect the two clips together in the tube hole.

Further, a clamp opening closing part, a clamp opening expanding part and a clamp opening part are sequentially arranged on the clamp from front to back;

the outer wall of the clamping seat is provided with a stop ring which is suitable for abutting against the front end wall of the end cap so as to limit the clamping seat to move into the pipe hole of the spring pipe assembly;

when the clamp seat moves to the clamp opening part, the clamp opening can be opened naturally;

when the clamp seat moves to the clamp opening expansion part, the clamp opening can be expanded and enlarged;

when the clamp seat moves to the clamp opening closing part, the clamp opening is closed.

Further, the single clip includes a first segment, a second segment, a third segment, a fourth segment, and a fifth segment;

the width of the third segment is smaller than that of the second segment, and the third segment and the second segment are in bevel edge transition; the third segment is a curved arc segment;

the width of the first segment is larger than the diameter of the seat hole of the clamping seat, and the width of the second segment is smaller than the diameter of the seat hole of the clamping seat;

the front end of the first segment is bent to form a clamping edge, and clamping protrusions are formed on two sides of the clamping piece and are the occlusion parts;

a pair of bayonets are formed on two sides of the fifth segment, namely the engagement supporting part;

the clamping pieces are fixedly connected through the fifth segments of the two clamps;

the fourth segments of the two clamping pieces form the opening part;

the third segments of the two clamping pieces form the expansion part, and the arc openings of the third segments of the two clamping pieces are oppositely arranged;

the second sections of the two jaws form said closure.

Furthermore, the rear end of the clamp seat is provided with two upper stop levers and two lower stop levers, a stop opening is formed between the clamping edge and the first section, and the stop levers are suitable for being matched with the stop opening so as to limit the two clamping edges of the clamp between the upper stop levers and the lower stop levers.

Further, the first section of each clip is provided with a back projection adapted to engage the inner wall of the end cap to limit the opening of the two clips of the clip within the interior cavity of the end cap.

Further, the fifth segment of each clip is curved.

Further, the spring tube assembly comprises a spring tube and an end cap, the end cap is arranged at the front end of the spring tube, and a tube hole is formed in the end cap;

the front end of the pipe hole of the end cap is provided with an inner baffle protrusion;

the end cap front end circumference is provided with a plurality of flutings, is suitable for the holder to do radial expansion motion when moving out the end cap.

Furthermore, the rear end of the end cap is provided with an expanding hole, and the diameter of the expanding hole is larger than that of the pipe hole;

the clamp moves to the diameter-expanding hole of the end cap, and the back bulge of the clamp is bounced into the diameter-expanding hole, so that the clamp is expanded in the pipe hole to realize the separation of the clamp and the front clamp engagement supporting part.

The utility model has the advantages that:

the utility model provides a running fire hemostasis clip device can be internal to carry out the in-process of the operation of stanching and can run fire the operation to, the double-layered mouth of hemostasis clamp is after opening naturally, can advance one step expansion after carrying out the shrink interlock, promotes the hemostasis area of hemostasis clamp.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of a hemostatic clip;

FIG. 2 is a schematic view of a clip;

FIG. 3 is a schematic view of a cartridge;

FIGS. 4 and 5 are schematic end caps;

FIG. 6 is a view of the structure between the front end of the clip and the holder;

FIG. 7 is a schematic view of an anterior hemostatic clip positioned within an end cap;

FIG. 8 is a schematic view of the anterior hemostatic clip extending end cap;

FIG. 9 is a schematic view of the anterior hemostatic clip in a naturally open position after extending out of the end cap;

FIG. 10 is a schematic view of the anterior hemostatic clamp further expanded to grasp a tissue mucosa;

FIG. 11 is a schematic view of the anterior hemostatic clip in a occluded state;

FIG. 12 is a schematic view of the posterior hemostatic clip disengaged from the anterior hemostatic clip;

FIG. 13 is a schematic view of the anterior hemostatic clamp about the mucosal tissue;

FIG. 14 is a schematic view of a hemostatic clip device;

the device comprises a base, a first segment, a second segment, a third segment, a fourth segment, a fifth segment, a third segment, a clamp edge, a clamp 313, a clamping edge, a second segment, a third segment, a fourth segment, a fifth segment, a bayonet 351, a bayonet, a third segment, a clamping seat, a fourth segment, a.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1 to 14, a burst hemostatic clamp device includes a plurality of hemostatic clamps and a spring tube assembly, wherein the hemostatic clamps are engaged together in sequence to form a hemostatic clamp string assembly; the spring tube component is internally provided with a tube hole which is suitable for accommodating the hemostatic clamp string component to move in the tube hole.

The spring tube assembly comprises a spring tube and an end cap 1, wherein the end cap 1 is arranged at the front end of the spring tube, and a tube hole is formed in the end cap 1; the front end of the tube hole of the end cap 1 is provided with an inner blocking bulge which is used for preventing the hemostatic clamp in the tube hole from sliding out; the front end of the end cap 1 is circumferentially provided with a plurality of slots 21 suitable for the radial expansion movement of the clamping seat 4 when the end cap 1 is removed.

The hemostatic clamp string component is arranged in the spring tube and the end cap 1, the rear end of the hemostatic clamp string component is connected with the inhaul cable, and a doctor drives the hemostatic clamp string component to move in the tube hole through controlling the inhaul cable.

Specifically, as shown in fig. 1, the hemostatic clamp comprises a clamp 3 and a clamp seat 4; after the front hemostatic clamp is moved out of the tube hole, the clamping opening of the front clamp 3 is naturally opened; the posterior hemostatic clamp bites the anterior clamp 3 and moves backwards until the posterior hemostatic clamp is disengaged, and the opening of the anterior clamp 3 is naturally opened, changed into opening expansion, and finally occluded and locked.

Specifically, as shown in fig. 2, the clip 3 of the hemostatic clip includes a first jaw and a second jaw;

the front end of each clamping piece is respectively provided with an occlusion part, and the rear end of each clamping piece is respectively provided with an engagement supporting part which is suitable for being matched with the occlusion part of the other clamping piece; the two engaging portions at the front end of the clip 3 engage with the two engaging support portions at the rear end of the other clip 3 to engage and connect the two clips 3 together in the tube hole.

Specifically, the clip 3 is sequentially provided with a clip opening closing part, a clip opening expanding part and a clip opening expanding part from front to back;

a stop ring 41 is arranged on the outer wall of the clamping seat 4 and is suitable for abutting against the front end wall of the end cap 1 so as to limit the clamping seat 4 from moving into the pipe hole of the spring pipe assembly; the front end of the retainer ring 41 is a guide slope to facilitate its removal from the end cap 1.

When the clamp seat 4 moves to the clamp opening part, the clamp opening can be opened naturally; when the clamp seat 4 moves to the clamp opening expansion part, the clamp opening can be expanded and enlarged; when the clamping seat 4 moves to the clamping opening closing part, the clamping opening is closed.

Specifically, as shown in fig. 2, a single clip includes a first segment 31, a second segment 32, a third segment 33, a fourth segment 34, and a fifth segment 35;

the third segment 33 has a smaller width than the second segment 32, and the third segment 33 and the second segment 32 are in bevel transition; the third segment 33 is a curved arc segment; the first segment 31 has a width greater than the diameter of the seat bore of the cartridge 4 and the second segment 32 is smaller than the diameter of the seat bore of the cartridge 4.

The front end of the first segment 31 is bent to form a clamping edge 312, and clamping protrusions 313 are formed on two sides of the clamping piece, namely the meshing part; a pair of bayonets 351 are formed on both sides of the fifth segment 35, and are the engagement supporting portions;

the jaws are fixedly connected via fifth segments 35 of two clips 3; the two fifth segments 35 are fixedly connected by welding.

The fourth segments 34 of the two clips form the flare; the two first segments 31 of the opening part of the clip 3 are flat and are overlapped together, when the clamping seat 4 is positioned at the opening part, the clamping seat 4 can not make the clip 3 start to deform, therefore, when the clamping seat 4 is positioned at the opening part, the clip 3 naturally opens;

the third sections 33 of the two clamping pieces form the expansion part, and the arc openings of the third sections 33 of the two clamping pieces are oppositely arranged; the two arc-shaped third segments 33 form a ring-shaped structure, the third segment 33 of the lower clamping piece is higher than the fifth segment 35 of the upper clamping piece, and the third segment 33 of the upper clamping piece is lower than the fifth segment 35 of the lower clamping piece; when the holder 4 needs to be moved forward, the holder 4 needs to press the two third segments 33, so that the two jaws make a further expanding movement.

The second segments 32 of the two clamping pieces form the closed part, the two second segments 32 are linear, and the clamping mouths of the clamps 3 can begin to shrink to realize clamping when the two second segments 32 enter the clamping seats 4.

As shown in fig. 3 and 6, the rear end of the holder 4 is provided with two upper bars 42 and two lower bars 43, and a blocking opening is formed between the clamping edge 312 and the first segment 31, and the blocking openings are matched with the blocking openings to limit the two clamping edges 312 of the clamp 3 between the upper bars 42 and the lower bars 43. When the two clamping pieces in the back channel clamp the fifth clamping piece 35 in the front channel, the upper and lower stop levers can limit the two clamping pieces in the back channel to open, so that the two hemostatic clamps which are occluded together can move in the tube hole to be loosened, and the occlusion strength of the front hemostatic clamp and the rear hemostatic clamp is improved.

The nip of the succeeding clip 3 can be opened only after the engaging portion of the succeeding clip 3 is separated from the upper and lower two bars together with the engagement supporting portion of the preceding clip 3.

Specifically, as shown in fig. 1 and 2, the first segment 31 of each clip is provided with a back protrusion 311, and the back protrusion 311 is suitable for the contact fit of the inner wall of the end cap 1 to limit the opening of the two clips of the clip 3 in the inner cavity of the end cap 1.

Specifically, as shown in fig. 1, 2 and 6, the fifth segment 35 of each clip is curved. The curved fifth segment 35 can increase in height so that the clamping edges 312 of the two clips 3 need to open at a greater angle when disengaging the fifth segment 35, and controlling the degree of curvature of the fifth segment 35 can control the angle at which the clips 3 need to open when disengaging.

As shown in fig. 4 and 5, the rear end of the end cap 1 is provided with a diameter expanding hole 22, and the diameter of the diameter expanding hole 22 is larger than that of the tube hole; the clip 3 moves to the diameter-expanding hole 22 of the end cap 1, and the back protrusion 311 of the clip 3 springs into the diameter-expanding hole 22, so that the clip 3 is expanded in the pipe hole to realize the separation of the engaging and supporting part of the previous clip 3.

During operation, as shown in fig. 7, the front clip 3 is located in the end cap 1, the front end of the rear clip 3 clips the tail of the front hemostatic clip, the doctor pushes the pull cable to move the whole hemostatic clip string assembly forward, the back protrusion 311 of the front clip 3 is moved out of the end cap 1 to the state shown in fig. 8, then the pull cable is continuously pushed, the clamping seat 4 and the clip 3 of the front hemostatic clip are both moved out of the end cap 1, as shown in fig. 9, the retaining ring 41 of the clamping seat 4 abuts against the front end wall of the end cap 1, and the rear clip 3 still bites the tail of the front clip 3; then the doctor pulls the cable backwards, then the front end of the clamp seat 4 contacts with the third segment 33 of the expansion part of the clamp 3, the clamping opening of the clamp 3 begins to expand in the process that the annular expansion part enters the clamp seat 4, when the annular expansion part is expanded to the maximum, the clamp seat can begin to clamp the mucosa tissue A (lesion bleeding part) of the human body, as shown in fig. 10, after the front hemostatic clamp clamps the mucosa tissue A, the doctor pulls the cable to further move backwards, the closed part of the clamp 3 begins to enter the clamp seat 4, the whole front clamp 3 finishes occlusion, as shown in fig. 11, the clamp seat 4 cannot move forwards and forwards after moving to the front part of the second segment 32, because the width of the first segment 31 is larger than the inner diameter of the support, after the front clamp 3 finishes clamping the mucosa tissue A, the doctor needs to pull the hemostatic clamp string assembly through the cable, because the clamp seat 4 of the front clamp 3 is abutted against the front end of the, therefore, the whole front clip 3 does not return to the tube hole, the back protrusion 311 of the back clip 3 moves to the hole 22 of the end cap 1, the two clamping edges 312 of the back clip 3 open, and the back clip 3 is disengaged from the bayonet 351 of the fifth segment 35 of the front clip 3, as shown in fig. 12, specifically, the back clip 3 needs to be disengaged from the front clip 3 through two parts, the engaging part of the front clip 3 is moved out from between the upper and lower stop levers of the front clip seat 4 into the tube hole in the first step, and the back protrusion 311 of the back clip 3 enters the hole 22 of the end cap 1 in the second step.

After detachment, the entire spring tube assembly and the posterior clip 3 are moved back, completely separated from the anterior clip 3, and the entire anterior clip is clamped to the mucosal assembly, as shown in fig. 13.

In the hemostatic clamp device, after the hemostatic clamp comes out of the spring tube, a doctor pulls the inhaul cable backwards to change the natural opening of the hemostatic clamp in the front passage into the further opening of the clamp opening, then the clamp opening contracts, clamps and is occluded, and finally the hemostatic clamps are separated; on the basis of meeting the requirement of the continuous transmission of the hemostatic clamp, a larger clamping angle can be provided for the hemostatic clamp.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A repeating hemostatic clamp device is characterized by comprising a plurality of hemostatic clamps, wherein the hemostatic clamps are meshed together in sequence to form a hemostatic clamp string component; and

the hemostatic clamp comprises a clamp and a clamp seat;

2. The running hemostatic clip device of claim 1,

the clip of the hemostatic clip comprises a first clip piece and a second clip piece;

3. The running hemostatic clip device of claim 2,

the clamp is sequentially provided with a clamp opening closing part, a clamp opening expanding part and a clamp opening expanding part from front to back;

4. The running hemostatic clip device of claim 3,

the single clip comprises a first segment, a second segment, a third segment, a fourth segment, and a fifth segment;

the fourth segments of the two clamping pieces form the opening part;

the second sections of the two jaws form said closure.

5. A hair running haemostatic clip device according to claim 4, wherein the rear end of the holder is provided with two upper and two lower bars, the clamping edges forming a stop with the first section, the bars being adapted to cooperate with the stop to trap the two clamping edges of the clip between the upper and lower bars.

6. The running hemostatic clip device of claim 3, wherein the first segment of each clip has a back projection adapted to engage an inner wall of the end cap to limit opening of the two clips of the clip within the inner cavity of the end cap.

7. The running hair hemostatic clip device of claim 3, wherein the fifth segment of each clip is curved.

8. The running fire hemostasis clip device of claim 6, wherein the spring tube assembly includes a spring tube and an end cap, the end cap disposed at a forward end of the spring tube, the end cap having a tube aperture formed therein;

9. The device according to claim 8, wherein the end cap defines an enlarged bore at the rear end thereof, the enlarged bore having a diameter greater than the diameter of the bore;