CN212415811U

CN212415811U - Anorectal anastomat with anorectal tissue selective cutting function

Info

Publication number: CN212415811U
Application number: CN202021652054.3U
Authority: CN
Inventors: 朱凌晨
Original assignee: Changzhou Zhiye Medical Devices Institute Co ltd
Current assignee: Changzhou Zhiye Medical Devices Institute Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-01-29
Anticipated expiration: 2030-08-10

Abstract

The utility model provides an anus intestines anastomat with selectivity excision anus intestines tissue function, including handle assembly, osculating the subassembly, support nail seat subassembly, lead screw subassembly, push rod subassembly and separation and reunion structure, its first ejector pin piece and the second ejector pin piece through the ejector pin piece that slides in the nail storehouse cover and set up amalgamation formation pipe column structure, set up the first straight push rod of the first ejector pin piece of propelling movement and the second straight push rod of propelling movement second ejector pin piece in fixed handle to be equipped with the separation and reunion structure that is provided with the linkage of control movable handle and first straight push rod and/or second straight push rod. When the disposable anastomosis nail taking device is used, only the positions of the first sliding block and the second sliding block of the clutch structure need to be adjusted, one of the first straight push rod and the second straight push rod can be selectively kept away by pulling the movable handle, and then one of the first staple pushing sheet and the second staple pushing sheet is triggered to push the anastomosis nail, so that the purpose of selectively excising mucosal tissue on the anorectal dentate line of a patient is achieved, and surgical risks are effectively reduced.

Description

Anorectal anastomat with anorectal tissue selective cutting function

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to an anorectal anastomat with function of selectively excising anorectal tissue.

Background

The tubular anorectal anastomat is a disposable surgical operation instrument suitable for human anorectal anastomosis and has the principle that an anal pad is reserved, partial internal hemorrhoids, the upper mucous membrane and the lower mucous membrane of the hemorrhoids are subjected to circular excision anastomosis and instantaneous anastomosis simultaneously, so that the blood supply of the hemorrhoids is blocked, the slipped tissues are suspended and fixed, and the anorectal canal rectum in a pathological state is restored to a normal anatomical state. The tubular anorectal anastomat mainly comprises a nail abutting seat assembly, a nail bin assembly, a fixed handle assembly, an adjusting screw rod assembly, a pointer mechanism, a movable handle assembly, a push rod assembly and a safety block assembly. When the nail pushing seat and the nail bin assembly reach the specified anastomosis distance, the pointer mechanism can display in a safe green area, the danger block assembly is manually opened, the movable handle assembly is pulled to trigger the push rod assembly, the inner annular knife of the nail bin assembly cuts redundant tissues through the push rod assembly, and meanwhile, suturing nails in the nail bin assembly are pushed out to enable the tissues to be anastomotic.

However, the current tubular anorectal stapler generally adopts an integral circumcision suture mode to perform separation or anastomosis on anorectal tissues, and when tissues such as mucosa on a dentate line on the anorectal are required to be selectively excised, corresponding accessories are required to be correspondingly utilized to perform local excision, the operation process is complex, the operation cost is correspondingly high, and the economic burden of a patient is increased. In addition, when the mucosa on the dentate line on the anus and intestine is selectively cut by adopting the mode of integral circumcision suture, redundant unused anastomosis nails are easy to fall into the human body, the pain of a patient is increased, and the operation risk is increased.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a can carry out the anorectal anastomat that has selectivity excision anorectal tissue function of selectivity excision to mucosa tissue on the dentate line on the anorectal to solve the cast anorectal anastomat that exists among the prior art and only can separate apart or coincide anorectal tissue with the sutural mode of whole circular excision, be difficult to mucosa tissue on the dentate line on the selectivity excision anorectal, need additionally utilize corresponding annex to carry out the local excision of anorectal tissue, thereby increase the technical problem of operation cost and increase operation risk.

In order to achieve the above object, the utility model adopts the following technical scheme: provided is an anorectal stapler having a function of selectively cutting anorectal tissue, comprising:

the handle assembly comprises a fixed handle and a movable handle rotationally arranged on the fixed handle;

the anastomosis cutting assembly is used for cutting and/or anastomosing anorectal tissues of a patient, and comprises a nail bin sleeve fixedly connected with the first end of the fixing handle and a nail pushing piece used for installing anastomosis nails, wherein the nail pushing piece comprises a first nail pushing piece and a second nail pushing piece which are respectively arranged in a semicircular tube shape, the first nail pushing piece and the second nail pushing piece can be spliced to form a nail pushing piece in a circular tube-shaped structure, and the first nail pushing piece and the second nail pushing piece are respectively arranged in the nail bin sleeve in a sliding mode;

the nail abutting seat assembly comprises a nail abutting seat which is arranged corresponding to the nail bin sleeve;

the screw rod assembly is arranged in the fixed handle, is connected with the nail abutting seat and is used for adjusting the matching distance between the nail abutting seat and the nail bin sleeve;

the push rod assembly comprises a first straight push rod for pushing the first nail pushing piece and a second straight push rod for pushing the second nail pushing piece, and the first straight push rod and the second straight push rod are respectively arranged in the fixed handle in a sliding manner; and

the clutch structure is used for controlling the movable handle and the first straight push rod and/or the linkage of the second straight push rod, the clutch structure comprises a first sliding block arranged on the first straight push rod in a sliding mode, a first locking structure positioned on the first straight push rod, a second sliding block arranged on the second straight push rod in a sliding mode, a second locking structure positioned on the second straight push rod in a sliding mode, a first pushing arm used for being locked at a trigger position by the first sliding block and being linked with the first sliding block to push the first straight push rod, and a second pushing arm used for being locked at the trigger position by the second sliding block and being linked with the second sliding block to push the second straight push rod, and the first pushing arm and the second pushing arm are connected with the movable handle respectively.

Furthermore, the clutch structure further comprises a first push button for pushing the first sliding block to slide on the first straight push rod and a first connecting rod for connecting the first push button with the first sliding block, a first guide groove for guiding the first connecting rod to move is correspondingly arranged on the first straight push rod, and the first connecting rod is arranged in the first guide groove in a sliding manner.

Further, the first locking structure comprises a first buckle piece arranged on the first sliding block and a first clamping groove concavely arranged on the first straight push rod, and the first clamping groove is matched with the first buckle piece to be in buckle connection so as to lock the first sliding block on the first straight push rod.

Further, the first buckle piece comprises a first elastic arm connected with the first sliding block and a first clamping hook arranged at one end of the first elastic arm, which is far away from the first sliding block, and the first clamping hook is connected with the first clamping groove in a buckling mode so as to lock the first sliding block on the first straight push rod.

Furthermore, the clutch structure further comprises a second push button for pushing the second sliding block to slide on the second straight push rod and a second connecting rod for connecting the second push button with the second sliding block, a second guide groove for guiding the second connecting rod to move is correspondingly arranged on the second straight push rod, and the second connecting rod is arranged in the second guide groove in a sliding manner.

Furthermore, the second locking structure comprises a second buckle piece arranged on the second sliding block and a second clamping groove concavely arranged on the second straight push rod, and the second clamping groove is matched with the second buckle piece for clamping connection so as to lock the second sliding block on the second straight push rod.

Further, support the nail seat subassembly still include the connecting axle and install in support the cushion cutter ring on the nail seat, the first end of connecting axle with support the nail seat and link to each other, the second end of connecting axle with the lead screw subassembly links to each other, be provided with annular sword on the ejector pin spare, cushion cutter ring with annular sword corresponds the setting.

Further, the lead screw subassembly including rotate set up in lead screw in the fixed handle and with the adjusting nut that the first end of lead screw links to each other, the second end of lead screw passes in proper order push rod subassembly, osculating subassembly and with the second end of connecting axle links to each other.

Further, the second end of the screw rod is fixedly connected with the second end of the connecting shaft through a pin.

Further, the osculating assembly further comprises a nail bin, a first semi-annular knife fixedly arranged on the first nail pushing piece and a second semi-annular knife fixedly arranged on the second nail pushing piece, the nail bin is arranged at the first end of the nail bin sleeve, and the second end of the nail bin sleeve is fixedly connected with the first end of the fixed handle.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, compare with prior art, have one of following beneficial effect at least:

the embodiment of the utility model provides an anus intestines anastomat with selectivity excision anus intestines tissue function sets up the first ejector pin piece and the second ejector pin piece of the ejector pin piece that the amalgamation formed the pipe-shaped structure through sliding in the nail storehouse cover, sets up the first straight push rod of the first ejector pin piece of propelling movement and the second straight push rod of the second ejector pin piece of propelling movement in fixed handle to be provided with the separation and reunion structure that is used for controlling movable handle and the linkage of first straight push rod and/or second straight push rod. When the tubular anorectal anastomosis stapler is used, only the positions of the first sliding block and the second sliding block of the clutch structure need to be adjusted, the movable handle is pulled to selectively avoid one of the first straight push rod and the second straight push rod, and simultaneously trigger and push the other one of the first straight push rod and the second straight push rod, so that one of the first staple pushing sheet and the second staple pushing sheet is triggered to push the anastomosis staple to work, the purpose of selectively excising mucosal tissue on the patient anorectal dentate line is achieved, and the defects that the traditional tubular anorectal anastomosis stapler can only carry out separation or anastomosis on anorectal tissue in an integral circumcision suturing mode, the mucosal tissue on the dentate line on anorectal is difficult to be selectively excised, corresponding accessories need to be additionally utilized to carry out local excision of the anorectal tissue, and therefore the operation cost is increased and the operation risk is increased are overcome. In addition, according to the anorectal stapler with the function of selectively cutting anorectal tissues, one of the first nail pushing sheet and the second nail pushing sheet can be selectively triggered to push the anastomosis nail, and meanwhile, the other one of the first nail pushing sheet and the second nail pushing sheet is enabled to be selectively kept away from the air without pushing out the anastomosis nail, so that the anastomosis nail is saved, the redundant unused anastomosis nail is prevented from falling into the human body, and the surgical risk is effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an anorectal stapler having a function of selectively excising anorectal tissue according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the nail bin sleeve provided with a window according to the embodiment of the present invention;

fig. 3 is a schematic structural view illustrating a fixed connection between a screw rod assembly and a nail abutting seat assembly according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a movable handle according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a push rod assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a clutch structure according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the movable handle and the push rod assembly in linkage according to the embodiment of the present invention;

fig. 8 is a schematic structural view of the movable handle and the push rod assembly provided in the embodiment of the present invention when the movable handle and the push rod assembly are retracted;

fig. 9 is a schematic perspective view of a push rod assembly according to an embodiment of the present invention;

fig. 10 is an exploded view of a push rod assembly provided by an embodiment of the present invention;

fig. 11 is a schematic perspective view of a nail pushing member according to an embodiment of the present invention;

fig. 12 is an exploded view of a staple pusher according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a handle assembly; 11-a fixed handle; 12-a movable handle;

2-kiss-cutting components; 21-a nail bin sleeve; 22-a nail pusher; 221-a first ejector pin sheet; 222-a second ejector pin sheet; 23-a first semi-annular knife; 24-a second semi-annular knife;

3-nail abutting seat assembly; 31-nail abutting seats; 32-a connecting shaft;

4-a screw assembly; 41-a screw rod; 42-an adjusting nut;

5-a push rod assembly; 51-a first straight push rod; 511-a first guide slot; 52-second straight push rod;

6-a clutch structure; 61-a first slide; 62-a first locking structure; 621-a first resilient arm; 622-first hook; 65-a first pusher arm; 66-a second pusher arm; 67-a first push button; 68-a first link;

7-pins; 8-view window.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "connected" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 12 together, an anorectal anastomosis instrument having a function of selectively excising anorectal tissue according to an embodiment of the present invention will now be described. Referring to fig. 1, 4 and 6, the anorectal stapler with the function of selectively cutting anorectal tissue comprises a handle assembly 1, an osculating assembly 2, a nail seat assembly 3, a screw rod assembly 4, a push rod assembly 5 and a clutch structure 6, wherein the handle assembly 1 comprises a fixed handle 11 and a movable handle 12, the movable handle 12 is rotatably arranged on the fixed handle 11 through a pivot (not shown in the figure), and the fixed handle 11 is provided with a spring (not shown in the figure) for elastically pushing the movable handle 12 to return. Referring to fig. 1, 11 and 12, the osculating assembly 2 is used for excising and/or anastomosing anorectal tissues of a patient, the osculating assembly 2 includes a cartridge sleeve 21 and a staple pusher 22, the cartridge sleeve 21 is fixedly connected to a first end of the fixing handle 11, the staple pusher 22 includes a first staple pusher 221 and a second staple pusher 222 respectively disposed in a semicircular tube shape, the first staple pusher 221 and the second staple pusher 222 can be spliced to form a staple pusher having a circular tube-shaped structure, the first staple pusher 221 and the second staple pusher 222 are respectively slidably disposed in the cartridge sleeve 21, and then anastomoses (not shown) can be respectively mounted on the first staple pusher 221 and the second staple pusher 222. Referring to fig. 1 and 2, the nail pushing seat assembly 3 includes a nail pushing seat 31 corresponding to the nail bin sleeve 21, the screw rod assembly 4 is disposed in the fixed handle 11 and connected to the nail pushing seat 31, and the screw rod assembly 4 is used for adjusting the matching distance between the nail pushing seat 31 and the nail bin sleeve 21. Referring to fig. 1, the push rod assembly 5 includes a first straight push rod 51 and a second straight push rod 52, the first straight push rod 51 and the second straight push rod 52 are respectively slidably disposed in the fixed handle 11, one end of the first straight push rod 51 is connected to the first nail pushing sheet 221, so that the first nail pushing sheet 221 can be pushed by the first straight push rod 51 during firing, and one end of the second straight push rod 52 is connected to the second nail pushing sheet 222, so that the second nail pushing sheet 222 can be pushed by the second straight push rod 52 during firing. In addition, referring to fig. 1 and fig. 6 in combination, the anorectal stapler having the function of selectively cutting anorectal tissue is further provided with a clutch structure 6 for controlling the movable handle 12 to be linked with the first straight push rod 51 and/or the second straight push rod 52, the clutch structure 6 includes a first slider 61, a first locking structure 62, and a second slider (not shown in the figure), the second locking structure (not shown in the figure), the first pushing arm 65 and the second pushing arm 66, the second locking structure is the same as the first locking structure 62, the first sliding block 61 is slidably arranged on the first straight pushing rod 51, the first sliding block 61 can be positioned and locked on the first straight pushing rod 51 through the first locking structure 62, the second sliding block is slidably arranged on the second straight pushing rod 52, the second sliding block can be positioned and locked on the second straight pushing rod 52 through the second locking structure (not shown in the figure), and the first pushing arm 65 and the second pushing arm 66 are respectively connected with the movable handle 12. In use, referring to fig. 7, when the first slider 61 is locked at the triggering position, the movable handle 12 is pulled, the first pushing arm 65 is linked with the first slider 61 to push the first straight pushing rod 51, the first straight pushing rod 51 drives the first nail pushing sheet 221 to be triggered, when the second slider is locked at the triggering position, the movable handle 12 is pulled, the second pushing arm 66 is linked with the second slider to push the second straight pushing rod 52, and the second straight pushing rod 52 drives the second nail pushing sheet 222 to be triggered. Referring to fig. 8, when the first sliding block 61 is not locked at the triggering position, the movable handle 12 is pulled, and the first pushing arm 65 is cleared and cannot be linked with the first sliding block 61, so that the movable handle 12 cannot be used to trigger and push the first straight pushing rod 51 to drive the first nail pushing sheet 221. Similarly, when the second slider is not locked at the triggering position, the movable handle 12 is pulled, and the second pushing arm 66 is cleared and cannot be linked with the second slider, so that the second straight pushing rod 52 cannot be triggered and pushed by the movable handle 12 to drive the second nail pushing piece 222. Therefore, only by adjusting and locking the position of the first sliding block 61 and/or the second sliding block of the clutch structure 6, when the movable handle 12 is pulled, one of the first straight push rod 51 and the second straight push rod 52 can be selectively cleared, and the other of the first straight push rod 51 and the second straight push rod 52 is triggered and pushed, so that one of the first staple pushing sheet 221 and the second staple pushing sheet 222 is triggered to push the staple, and the purpose of selectively cutting off the mucosal tissue on the anorectal dentate line of the patient is achieved.

Specifically, when a doctor needs to selectively excise mucosa tissues on the dentate line of the anorectum of a patient, the doctor only needs to lock the first sliding block 61 or the second sliding block at the triggering position, and then can pull the movable handle 12 to selectively avoid one of the first straight push rod 51 and the second straight push rod 52 and correspondingly trigger and push the other one of the first straight push rod 51 and the second straight push rod 52, so that the corresponding staple pushing sheet is conveniently and quickly pushed by the other one of the first straight push rod 51 and the second straight push rod 52, the purpose of selectively excising the mucosa tissues on the dentate line of the anorectum of the patient is achieved, the defects that the traditional anorectum stapler can only carry out separation or anastomosis on the anorectum tissues in a mode of integral circumcision suture, mucosa tissues on the dentate line of the anorectum are difficult to be selectively excised, and corresponding accessories need to be additionally utilized to carry out local excision of the anorectum tissues are overcome, thereby increasing the cost of the procedure and increasing the risk of the procedure. In addition, according to the anorectal stapler with the function of selectively cutting anorectal tissues, one of the first staple pushing sheet 221 and the second staple pushing sheet 222 can be selectively triggered to push staples, and meanwhile, the other one of the first staple pushing sheet 221 and the second staple pushing sheet 222 is enabled to be selectively kept clear without pushing out the staples, so that the staples are saved, the redundant unused staples are prevented from falling into a human body, and the surgical risk is effectively reduced. When the anorectal tissue needs to be separated or anastomosed in an integral circumcision suturing mode, only the first sliding block 61 and the second sliding block need to be locked at the triggering position at the same time, and the movable handle 12 can be pulled to select and trigger the first staple pushing sheet 221 and the second staple pushing sheet 222 to push anastomotic staples at the same time, so that the anorectal tissue of the patient is anastomosed. Therefore, the anorectal anastomat with the function of selectively excising the anorectal tissue can be suitable for most anorectal cases, does not need to additionally use corresponding accessories to locally excise the anorectal tissue, effectively reduces the operation cost of a patient, and reduces the economic burden of the patient.

The embodiment of the utility model provides an anorectal anastomat with selectivity excision anorectal tissue function compares with prior art, but first ejector pin piece 221 and the second ejector pin piece 222 of ejector pin piece through sliding the formation of amalgamation in nail storehouse cover 21, set up the first straight push rod 51 of the first ejector pin piece 221 of propelling movement and the straight push rod 52 of the second ejector pin piece 222 of propelling movement in fixed handle 11 to be provided with and be used for controlling the clutching structure 6 of activity handle 12 and the linkage of first straight push rod 51 and/or the straight push rod 52 of second. When the tubular anorectal anastomosis stapler is used, only the positions of the first sliding block 61 and the second sliding block of the clutch structure 6 need to be adjusted, one of the first straight push rod 51 and the second straight push rod 52 can be selectively cleared away by pulling the movable handle 12, and the other of the first straight push rod 51 and the second straight push rod 52 is triggered and pushed at the same time, so that one of the first staple pushing sheet 221 and the second staple pushing sheet 222 is triggered to push a staple, the purpose of selectively excising mucosal tissue on the anorectal dentate line of a patient is achieved, and the defects that the conventional tubular anorectal anastomosis stapler can only perform separation or anastomosis on anorectal tissue in an integral circumcision suturing mode, mucosal tissue on the dentate line on anorectal is difficult to selectively excise, and corresponding accessories need to be additionally used for performing local excision of anorectal tissue, so that the operation cost is increased and the operation risk is increased are overcome. In addition, according to the anorectal stapler with the function of selectively cutting anorectal tissues, one of the first staple pushing sheet 221 and the second staple pushing sheet 222 can be selectively triggered to push staples, and meanwhile, the other one of the first staple pushing sheet 221 and the second staple pushing sheet 222 is enabled to be selectively kept clear without pushing out the staples, so that the staples are saved, the redundant unused staples are prevented from falling into a human body, and the surgical risk is effectively reduced.

It will be appreciated that referring to fig. 4 in combination, in one embodiment, the first pusher arm 65 is integrally formed with the movable handle 12 and the second pusher arm 66 is integrally formed with the movable handle 12.

As can be understood, referring to fig. 3, in one embodiment, the nail abutting seat assembly 3 further includes a connecting shaft 32 and a cutter supporting ring (not shown) mounted on the nail abutting seat 31, a first end of the connecting shaft 32 is connected to the nail abutting seat 31, a second end of the connecting shaft 32 is connected to the screw rod assembly 4, the nail pushing member 22 is provided with a ring-shaped cutter, and the cutter supporting ring is disposed corresponding to the ring-shaped cutter. In this embodiment, by adopting the above scheme, the nail abutting seat 31 is connected with the screw rod assembly 4 through the connecting shaft 32, so that the stability of the connection between the nail abutting seat 31 and the screw rod assembly 4 is enhanced, and the nail abutting seat 31 is prevented from being forced upwards during firing to cause adverse effects on staple formation. In addition, the nail-pushing piece 22 is provided with an annular knife, and a cutter backing ring is arranged on the nail abutting seat 31 corresponding to the position of the annular knife, so that the completion of the anastomosis is judged by sensing the cutter backing ring cut off by the annular knife or hearing the sound of the cutter backing ring cut off by the annular knife, and the accuracy of the operation is improved.

As will be understood, referring to fig. 1 and 3 in combination, in one embodiment, the screw rod assembly 4 includes a screw rod 41 rotatably disposed in the fixed handle 11 and an adjusting nut 42 connected to a first end of the screw rod 41, and a second end of the screw rod 41 passes through the push rod assembly 5 and the osculating assembly 2 in sequence and is connected to a second end of the connecting shaft 32. In this embodiment, by adopting the above scheme, the screw rod 41 is rotatably disposed in the fixed handle 11, the first end of the screw rod 41 is connected with the adjusting nut 42, and the second end of the screw rod 41 sequentially passes through the push rod assembly 5 and the osculating assembly 2 and is connected with the second end of the connecting shaft 32. When the nail pushing device is used, only the adjusting nut 42 needs to be rotated clockwise, when the indicating needle moves in the window 8, the green area of the indicating window is selected (selected according to the thickness of the anastomotic tissue), and the anastomotic distance between the nail pushing seat 31 and the nail bin sleeve 21 is adjusted, so that the precision of the operation is improved, the risk of the operation is reduced, and the pain of the patient in the operation is relieved. In addition, in the embodiment, the area of the window 8 is increased by nearly 3.5 times compared with the area of a common window 8, the visual field of a doctor is better during operation, the doctor can shorten the operation time, and the operation risk of a patient is correspondingly reduced.

It will be appreciated that referring to fig. 3 in combination, in one embodiment, the second end of the lead screw 41 is fixedly connected to the second end of the connecting shaft 32 by a pin 7. It is understood that the second end of the screw rod 41 and the second end of the connecting shaft 32 are respectively provided with a pin hole for the pin 7 to pass through. In this embodiment, through adopting above-mentioned scheme, the second end with lead screw 41 is fixed with the second end of connecting axle 32 through pin 7 and is linked to each other, reduces the closed clearance of apparatus, has reduced assembly error, prevents to support nail seat 31 atress drunkenness, improves the clamping-force to human tissue to can keep closed clearance unanimous throughout at whole operation percussion process integral type anus intestines anastomat, further make the anastomotic nail shaping effect more stable, better, the postoperative patient resumes more swiftly.

As can be appreciated, referring to fig. 11 in combination, in one embodiment, the osculating assembly 2 further comprises a staple cartridge (not shown), a first semi-annular knife 23 fixedly disposed on the first staple pushing plate 221, and a second semi-annular knife 24 fixedly disposed on the second staple pushing plate 222, wherein the staple cartridge is disposed at a first end of the staple cartridge sleeve 21, and a second end of the staple cartridge sleeve 21 is fixedly connected to a first end of the stationary handle 11. In this embodiment, by adopting the above-mentioned scheme, the first semicircular knife 23 is disposed on the first staple pushing piece 221, and the second semicircular knife 24 is disposed on the second staple pushing piece 222, so that the anorectal tissue is separated or anastomosed in a manner that the integral circumcision and suturing are required, and only by locking the first slider 61 and the second slider at the triggering position, the movable handle 12 can be pulled to select and fire the first staple pushing piece 221 and the second staple pushing piece 222 to push the anastomotic staples at the same time, so as to anastomose the anorectal tissue of the patient.

Referring to fig. 1 and fig. 6, in one embodiment, the clutch structure 6 further includes a first push button 67 for pushing the first sliding block 61 to slide on the first straight push rod 51, and a first link 68 for connecting the first push button 67 and the first sliding block 61, the first straight push rod 51 is correspondingly provided with a first guide slot 511 for guiding the first link 68 to move, and the first link 68 is slidably disposed in the first guide slot 511.

In this embodiment, by adopting the above scheme, the first guide groove 511 is correspondingly arranged on the first straight push rod 51, the first connecting rod 68 is slidably arranged in the first guide groove 511, and then the first push button 67 is connected with the first slider 61 through the first connecting rod 68, when the position of the first slider 61 is adjusted, only the first push button 67 needs to be pushed, the first connecting rod 68 drives the first slider 61 to move along the first guide groove 511 under the guiding action of the first guide groove 511, so that the convenience or accuracy of adjusting the position of the first slider 61 is improved.

Referring to fig. 6, in one embodiment, the first locking structure 62 includes a first locking element disposed on the first sliding block 61 and a first locking groove (not shown) recessed on the first straight pushing rod 51, and the first locking groove is locked to the first straight pushing rod 51 by the first locking element. In this embodiment, by adopting the above scheme, the first locking structure 62 includes the first buckle piece and the first slot that cooperates with the first buckle piece to form the buckle connection structure, the first slot is recessed to be located on the first straight push rod 51, the first buckle piece is disposed on the first slider 61, then when needing to lock the first slider 61 in the trigger position, only need to cooperate the first buckle piece buckle connection through the first slot to lock the first slider 61 in the trigger position of the first straight push rod 51, and the use is convenient and fast. It can be understood that, the first locking structure 62 can also be formed by correspondingly providing alignment holes on the first slider 61 and the first straight push rod 51, and then sequentially passing the alignment hole on the first slider 61 and the alignment hole on the first straight push rod 51 through the pin 7 or the inserted link, so as to lock the first slider 61 at the triggering position of the first straight push rod 51. Of course, the first locking structure 62 may also be a magnetic attachment structure. For example, magnets are respectively provided on the first slider 61 and the first straight push rod 51, and the first slider 61 is locked at the trigger position of the first straight push rod 51 by magnetic attraction of the magnets.

Referring to fig. 6, in one embodiment, the first locking member includes a first elastic arm 621 connected to the first sliding block 61 and a first hook 622 disposed at an end of the first elastic arm 621 away from the first sliding block 61, and the first hook 622 is locked to the first locking groove to lock the first sliding block 61 on the first straight push rod 51. In this embodiment, by adopting the above scheme, the first fastener includes the first elastic arm 621 and the first hook 622, the one end of the first elastic arm 621 is connected with the first slider 61, the first hook 622 is disposed at the end of the first elastic arm 621 departing from the first slider 61, and under the elastic action of the first elastic arm 621, the first hook 622 and the first hook snap-fit groove can be conveniently connected to lock the first slider 61 at the triggering position on the first straight push rod 51, and the stability of the snap-fit connection of the first hook 622 and the first hook snap-fit groove is enhanced, so as to further improve the working stability and reliability of the anorectal anastomosis stapler with the function of selectively excising anorectal tissue.

It should be understood that, in one embodiment, the clutch mechanism 6 further includes a second push button (not shown) for pushing the second slider to slide on the second straight push rod 52, and a second link (not shown) for connecting the second push button and the second slider, the second straight push rod 52 is correspondingly provided with a second guide slot for guiding the second link to move, and the second link is slidably disposed in the second guide slot (not shown). In this embodiment, through adopting above-mentioned scheme, through corresponding being equipped with the second guide slot on second straight push rod 52, slide the second connecting rod and set up in the second guide slot, rethread second connecting rod pushes away the button with the second and links to each other with the second slider, then when the position of adjustment second slider, only need promote the second and push away the button, the second connecting rod is along the second guide slot under the guide effect of second guide slot, drive the second slider and remove, thereby improve the convenience or the accuracy of adjusting the second slider position.

It is understood that, in one embodiment, the second locking structure (not shown in the figures) includes a second latch (not shown in the figures) disposed on the second slider and a second latch slot (not shown in the figures) recessed on the second straight pushing rod 52, and the second latch slot is engaged with the second latch to be latched to the second straight pushing rod 52. In this embodiment, by adopting the above scheme, the second locking structure (not shown in the figure) includes the second locking part and the second slot that cooperates with the second locking part to form the locking connection structure, the second slot is concavely disposed on the second straight push rod 52, the second locking part is disposed on the second slider, and when the second slider needs to be locked at the triggering position, the second slider only needs to cooperate with the second locking part through the second slot to be locked at the triggering position of the second straight push rod 52, so that the use is convenient and fast. It is understood that the second locking structure (not shown in the figures) may also be that alignment holes are correspondingly formed on the second slider and the second straight push rod 52, and then the pin 7 or the inserted rod sequentially passes through the alignment holes on the second slider and the alignment holes on the second straight push rod 52, so as to lock the second slider to the triggering position on the second straight push rod 52. Of course, the second locking structure (not shown) may also be a magnetic connection structure. For example, magnets are respectively arranged on the second slider and the second straight push rod 52, and the second slider is locked at the triggering position on the second straight push rod 52 through the magnetic attraction of the magnets.

It can be understood that, in one embodiment, the second locking member includes a second elastic arm (not shown in the figure) connected to the second slider and a second hook (not shown in the figure) disposed at an end of the second elastic arm away from the second slider, and the second hook is locked to the second slot to lock the second slider on the second straight pushing rod 52. In this embodiment, through adopting above-mentioned scheme, second buckle spare includes second elastic arm and second pothook, links to each other the one end of second elastic arm with the second slider, sets up the second pothook in the one end that deviates from the second slider of second elastic arm, because under the elastic action of second elastic arm, then can conveniently be connected second pothook and second draw-in groove buckle in order to lock the second slider in the trigger position on second straight push rod 52, and strengthen the stability that second pothook and second draw-in groove buckle are connected, and then further improve the reliable and stable nature of the anorectal anastomosis stapler work that has selectivity excision anorectal tissue function.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An anorectal stapler capable of selectively excising anorectal tissue, comprising:

2. The anorectal stapler capable of selectively cutting anorectal tissue according to claim 1, wherein the clutch structure further comprises a first push button for pushing the first sliding block to slide on the first straight push rod, and a first connecting rod for connecting the first push button and the first sliding block, a first guide groove for guiding the first connecting rod to move is correspondingly formed in the first straight push rod, and the first connecting rod is slidably disposed in the first guide groove.

3. The anorectal stapler capable of selectively cutting anorectal tissue according to claim 2, wherein the first locking structure comprises a first fastener arranged on the first sliding block and a first clamping groove concavely arranged on the first straight pushing rod, and the first clamping groove is matched with the first fastener to be in clamping connection with the first straight pushing rod so as to lock the first sliding block on the first straight pushing rod.

4. The anorectal stapler capable of selectively cutting anorectal tissue according to claim 3, wherein the first fastener comprises a first elastic arm connected to the first sliding block and a first hook arranged at an end of the first elastic arm away from the first sliding block, and the first hook is in snap connection with the first hook to lock the first sliding block on the first straight push rod.

5. The anorectal stapler capable of selectively cutting anorectal tissue according to claim 1, wherein the clutch structure further comprises a second push button for pushing the second sliding block to slide on the second straight push rod and a second connecting rod for connecting the second push button and the second sliding block, a second guide groove for guiding the second connecting rod to move is correspondingly formed in the second straight push rod, and the second connecting rod is slidably disposed in the second guide groove.

6. The anorectal stapler capable of selectively excising anorectal tissue according to claim 5, wherein the second locking structure comprises a second fastener arranged on the second sliding block and a second clamping groove concavely arranged on the second straight pushing rod, and the second clamping groove is matched with the second fastener to be in clamping connection with the second straight pushing rod so as to lock the second sliding block on the second straight pushing rod.

7. The anorectal stapler capable of selectively cutting anorectal tissue according to claim 1, wherein the nail abutting seat assembly further comprises a connecting shaft and a cutter backing ring mounted on the nail abutting seat, a first end of the connecting shaft is connected with the nail abutting seat, a second end of the connecting shaft is connected with the screw rod assembly, an annular knife is arranged on the nail pushing piece, and the cutter backing ring is arranged corresponding to the annular knife.

8. The anorectal stapler capable of selectively excising anorectal tissue according to claim 7, wherein the screw rod assembly comprises a screw rod rotatably arranged in the fixed handle and an adjusting nut connected with a first end of the screw rod, and a second end of the screw rod sequentially penetrates through the push rod assembly and the osculating assembly and is connected with a second end of the connecting shaft.

9. The anorectal stapler capable of selectively excising anorectal tissue according to claim 8 wherein a second end of said lead screw is fixedly connected to a second end of said connecting shaft by a pin.

10. The anorectal stapler capable of selectively excising anorectal tissue according to any one of claims 1 to 9, wherein the osculating assembly further comprises a staple cartridge, a first semi-annular knife fixedly arranged on the first staple pushing sheet and a second semi-annular knife fixedly arranged on the second staple pushing sheet, the staple cartridge is arranged at a first end of the staple cartridge sleeve, and a second end of the staple cartridge sleeve is fixedly connected with a first end of the fixing handle.