CN111035423A

CN111035423A - Anastomat with guiding device

Info

Publication number: CN111035423A
Application number: CN201911388713.9A
Authority: CN
Inventors: 郑美珠; 刘凯
Original assignee: Chongqing Meiko Medical Technology Co ltd
Current assignee: Chongqing Meiko Medical Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-21

Abstract

The invention relates to the field of medical equipment, in particular to a anastomat with a guide device. The tissue clamping device comprises a first assembly, a second assembly and a guiding device, wherein a first end head matched with the guiding device for clamping tissues is arranged at the front end of the first assembly, and the guiding device is connected with the front end of the second assembly through a telescopic mechanism and is used for telescopically adjusting the size of a gap between the guiding device and the first end head; the first component is a nail bin component, and the second component is a nail abutting seat component; or the first component is a nail abutting seat component, and the second component is a nail bin component. The invention has the beneficial effects that: through setting up the guider that can stretch out and draw back and first end cooperation to target tissue applys pressure, the pressure size of applying is suitable, can effectively prevent the tissue and slide, can avoid too big damage tissue of pressure again, reduces the operation degree of difficulty, improves the operation quality.

Description

Anastomat with guiding device

Technical Field

The invention relates to the field of medical equipment, in particular to a anastomat with a guide device.

Background

At present, in the surgical minimally invasive surgery, a stapler is often used for suturing and cutting, the stapler can comprise a gun body and a nail box, the nail box comprises a nail bin assembly and a nail abutting seat assembly, the nail bin assembly and the nail abutting seat assembly form a jaw, when the nail box enters a human body and is close to target tissues, the jaw is opened under the control of the gun body, then the target tissues are closed and clamped, and a cutter knife and titanium nails are pushed through the gun body to complete the suturing and cutting of the target tissues. The anastomat is when sewing up the cutting target tissue, and tissue itself can slide, and in cutting process, target tissue can receive the cutting knife and push the power of keeping silent head end portion in addition, and the tissue also can slide by the effect of this power, and the clearance size that nail storehouse subassembly and support the closed back front end of nail seat subassembly formed is fixed in addition, also can't prevent the tissue to slide, influences the operation quality.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides a stapler with a guiding device, which is used to solve the problems of easy slippage, difficult operation, difficult quality assurance, etc. in the prior art during the tissue cutting process.

In order to achieve the above and other related objects, the present invention provides a stapler with a guiding device, comprising a first assembly, a second assembly and a guiding device, wherein a first end matched with the guiding device for clamping tissue is arranged at the front end of the first assembly, the guiding device is connected with the front end of the second assembly through a telescopic mechanism, and the guiding device telescopically adjusts the size of a gap between the guiding device and the first end;

the first component is a nail bin component, and the second component is a nail abutting seat component; or the first component is a nail abutting seat component, and the second component is a nail bin component.

The invention has the beneficial effects that: through setting up the guider that can stretch out and draw back and first end cooperation to target tissue applys pressure, the pressure size of applying is suitable, can effectively prevent the tissue and slide, can avoid too big damage tissue of pressure again, reduces the operation degree of difficulty, improves the operation quality.

Optionally, the telescopic mechanism comprises an elastic member, and two ends of the elastic member are respectively connected with the guide device and the second assembly.

Optionally, the telescopic mechanism further includes a limiting member for limiting an extension distance of the elastic member, and two ends of the limiting member are connected to the guiding device and the second assembly respectively.

Optionally, the limiting member is a steel wire rope, or a telescopic rod, or an elastic rubber strip.

Optionally, the resilient member is a spring.

Optionally, the guiding device includes a connecting end connected to the telescopic mechanism and a clamping end cooperating with the first end to clamp the tissue, the front end of the second component is provided with a guide groove, and the connecting end is provided with a guide block slidably cooperating with the guide groove.

Optionally, the clamping surface of the clamping end facing the first end head is parallel to the inclined surface of the first end head facing the clamping end.

Optionally, the device further comprises a pipe body, and the first assembly and the second assembly are connected with the pipe body through a mounting piece.

The beneficial effect of adopting the above optional scheme is: simple structure, the operation is nimble stable, can effectively adapt to and prevent that various target tissue from sliding.

Optionally, an end of the guide device remote from the second component is provided with a hook.

Optionally, the hook is disposed at an end of the guiding device, and is bent to a side opposite to the first end and staggered with the first end.

The beneficial effect of adopting the above optional scheme is: the crotch can collude and choose the tissue to effectively prevent the tissue landing, make the anastomat function diversified.

Drawings

FIG. 1 is a schematic view of a stapler with a guide device according to the present invention;

FIG. 2 shows a partial front view of the stapler with guide device according to the invention in a first state;

FIG. 3 shows a cross-sectional view A-A of FIG. 2;

FIG. 4 shows a partial top view of a stapler with a guide device according to the invention in a first state;

FIG. 5 shows a partial front view of a stapler with a guide device according to the invention in a second state;

FIG. 6 shows a partial top view of a stapler with a guide device according to the invention in a second state;

FIG. 7 is a schematic diagram of a second component of the stapler with guide apparatus of the present invention;

FIG. 8 is a schematic view of the guiding device of the stapler with guiding device of the present invention without a hook;

FIG. 9 is a schematic view of the guiding device of the stapler with guiding device according to the present invention, showing the structure of the guiding device when the guiding device is hooked;

fig. 10 is a schematic view showing the structure of the elastic member of the stapler having the guide means according to the present invention.

Description of reference numerals

1 a first component;

11 a first end;

2 a second component;

21 a guide groove;

3 a guide device;

31 a clamping end;

32 a connecting end;

321 a guide block;

322, hanging a ring;

33, hooking;

4, mounting parts;

5, an outer tube;

6, a telescopic mechanism;

61 an elastic member;

611, hooking;

62 stop element.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It should be noted that the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship between the terms and the corresponding elements may be made without substantial technical changes.

Before describing embodiments of the present invention in detail, the present invention will be described in an application environment. The technology of the invention is mainly applied to tissue cutting and suturing, in particular to a stapler for carrying out tissue cutting and suturing. The invention solves the problems that the target tissue is easy to slide and damage in the cutting and suturing or hooking process.

As shown in fig. 1 to 10, the stapler with a guide device according to the present invention includes a tube 5, a magazine including a first module 1 and a second module 2, and a guide device 3, the first module 1 and the second module 2 being connected to the tube 5 by a mounting member 4. The front end of the first component 1 is provided with a first end 11 which is matched with the guide device 3 to clamp tissues, the guide device 3 is connected with the front end of the second component 2 through a telescopic mechanism 6, and the guide device 3 is telescopically adjusted to be in the size of a gap H between the guide device 3 and the first end 11 so as to clamp different tissues. Wherein, the first component 1 is a nail bin component, and the second component 2 is a nail pushing seat component; or the first component 1 is a nail abutting seat component, and the second component 2 is a nail bin component. When the guiding device 3 is installed on the nail bin assembly, the first end head is arranged on the nail abutting seat assembly; when the guide device 3 is mounted on the anvil assembly, the first end is arranged on the cartridge assembly.

As shown in fig. 1 to 8, the guiding device 3 includes a connecting end 32 connected to the telescopic mechanism 6 and a clamping end 31 cooperating with the first end 11 to clamp the tissue, the clamping surface of the clamping end 31 facing the first end 11 and the inclined surface of the first end 11 facing the clamping end are arranged in parallel, and the two opposite clamping surfaces are both inclined surfaces, so as to facilitate stable tissue clamping and effectively prevent tissue slippage. The front end of the second component 2 is provided with a guide groove 21, the connecting end 32 is provided with a guide block 321 which is in sliding fit with the guide groove 21, the guide groove 21 can be a dovetail groove structure or other sliding limiting structures, and the guide block 321 is matched with the guide groove 21 in shape. When the guide chute 21 is in a dovetail groove structure, the surfaces B, C, D of the guide groove and the corresponding surfaces of the guide block may be matched to be H7/f7, and a certain gap is left between the other two side surfaces of the guide groove and the corresponding side surfaces of the guide block, so that the guide device 3 can smoothly and flexibly slide along the length direction of the guide groove, and the guide device 3 is prevented from shaking up and down.

As shown in fig. 1 to 8 and 10, the telescopic mechanism 6 includes an elastic member 61, two ends of the elastic member 61 are respectively connected to the guiding device and the second assembly 2, and two ends of the elastic member 61 may be fixedly connected to the guiding device 3 and the second assembly 2 by welding, or detachably connected to the guiding device 3 and the second assembly 2, or a combination of the detachable connection and the welding. When the detachable connection mode is adopted, the hanging ring 322 can be arranged on the connecting end 32 of the guide device 3, and the hook 611 corresponding to the hanging ring 322 is arranged at the end part of the elastic part 61, so that the disassembly and the assembly are simple and convenient. The elastic part 61 can adopt parts with elastic deformation such as a spring, the structure of the spring can be a spiral spring, the elastic part with the elastic deformation function can be matched with the first end head effectively to clamp tissues, the tissues can be prevented from being damaged due to overlarge clamping force, and the elastic force of the elastic part can be adjusted by changing the diameter of the spring or changing the diameter of a spring wire. Telescopic machanism can install in the guide way, and structural configuration is compact, and flexible the removal is nimble stable, and telescopic machanism 6 still includes the locating part 62 of restriction elastic component 61 extension distance, and the both ends of locating part 62 are connected with link 32 and the second subassembly 2 of guiding device 3 respectively, not only can prevent through locating part 62 that guiding device from sliding and breaking away from the guide way, can also avoid the elastic component to warp the transition. The limiting part 62 can be a steel wire rope, or a telescopic rod, or a structure with limited stretching length such as an elastic rubber strip, and the maximum stretching distance of the limiting part 62 is smaller than the maximum deformation distance of the elastic part, so that the stretching transition of the elastic part is avoided. During initial state, the clearance H between the clamping end 31 of the guiding device 3 and the first end 11 is more than or equal to zero, when the jaws of the first assembly and the second assembly clamp tissues, the clamping end 31 can stretch and adjust the size of the clearance H according to the thickness of the clamped tissues, and the clamping end 31 exerts certain pressure on the clamped tissues under the action of the elastic stretching force of the stretching mechanism 6, so that the tissues can be effectively prevented from sliding, and the tissues are prevented from being damaged due to overlarge pressure.

As shown in fig. 1 and 9, the end of the guiding device 3 away from the second component 2 is provided with a hook 33, and the angle of the hook 33 can be set according to requirements. Collude through crotch 33 and choose the tissue, crotch 33 sets up the tip at the exposed core 32 of guiding device 3, and the crook just to the one side to first end 11 to stagger with first end 11, make can choose to collude according to the demand and choose to choose tissue or centre gripping tissue, so that adapt to different operation demands, can prevent effectively that the tissue from sliding or landing in the operation process.

The invention avoids the target tissue from sliding or sliding off in the cutting and suturing process through a simple structure and a compact layout, and avoids the target tissue from being damaged by overlarge clamping force, thereby reducing the operation difficulty and improving the operation quality.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A stapler with a guide device, characterized in that: the tissue clamping device comprises a first assembly, a second assembly and a guiding device, wherein a first end head matched with the guiding device for clamping tissues is arranged at the front end of the first assembly, and the guiding device is connected with the front end of the second assembly through a telescopic mechanism and is used for telescopically adjusting the size of a gap between the guiding device and the first end head;

2. A stapler with guide means according to claim 1, characterized in that: the telescopic mechanism comprises an elastic piece, and two ends of the elastic piece are respectively connected with the guide device and the second assembly.

3. A stapler with guide means according to claim 2, characterized in that: the telescopic mechanism further comprises a limiting part for limiting the extension distance of the elastic part, and two ends of the limiting part are connected with the guiding device and the second assembly respectively.

4. A stapler with guide means according to claim 3, characterized in that: the limiting part is a steel wire rope, or a telescopic rod, or an elastic rubber strip.

5. A stapler with guide means according to claim 2, characterized in that: the elastic piece is a spring.

6. A stapler with guide means according to claim 1, characterized in that: the guiding device comprises a connecting end connected with the telescopic mechanism and a clamping end matched with the first end head to clamp tissues, a guide groove is formed in the front end of the second assembly, and a guide block in sliding fit with the guide groove is arranged on the connecting end.

7. The stapler with guide device according to claim 6, wherein: the clamping surface of the clamping end facing the first end head is arranged in parallel with the inclined surface of the first end head facing the clamping end.

8. A stapler with guide means according to claim 1, characterized in that: still include the body, first subassembly and second subassembly pass through the installed part and are connected with the body.

9. A stapler with guide means according to any one of claims 1 to 8, characterized in that: and one end of the guide device, which is far away from the second component, is provided with a hook.

10. A stapler with guide means according to claim 9, characterized in that: the hook is arranged at the end part of the guide device, is bent to one side opposite to the first end head and is staggered with the first end head.