Anastomat

Abstract

The utility model provides an anastomat which comprises a body and a driving unit, the body comprises a nail bin sleeve and a nail pushing assembly, the nail bin sleeve is provided with a first window capable of displaying the internal structure of the nail bin sleeve, and the first window is provided with a first mark; the nail pushing assembly is arranged in the nail bin sleeve and provided with a second mark located on the inner side of the first window. The driving unit is in transmission fit with the nail pushing assembly so as to drive the nail pushing assembly to move relative to the nail bin sleeve in the axial direction of the nail pushing assembly, and the first mark has a first state coinciding with the second mark in the view angle perpendicular to the first view window and a second state separated from at least part of the second mark in the axial direction in the view angle perpendicular to the first view window. The problem that whether the suturing nail reaches the safe suturing height or not cannot be accurately judged is solved.

Description

Technical Field

[0001] This utility model relates to the field of anastomosis device technology, and in particular to an anastomosis device. Background Technology

[0002] In the medical field, especially in surgery, circumcision staplers are commonly used to treat phimosis. This device is designed with an anvil. During the procedure, the doctor first places the patient's glans penis into the receiving cavity of the anvil. Then, the foreskin to be cut is stretched and properly fixed towards the proximal end of the anvil to facilitate subsequent cutting and suturing steps.

[0003] However, although circumcision staplers have become commonly used instruments in minimally invasive surgery, several technical shortcomings have been exposed in their practical application. Currently, most doctors rely primarily on their personal operating experience and feel to guide the surgery when using such staplers, which undoubtedly increases the risk of the operation.

[0004] Specifically, refer to Figure 1 As shown, the stapler cartridge sleeve 12' in the prior art lacks alignment marks. Therefore, there is no intuitive indication of the staple height, making it difficult for surgeons to accurately determine whether the staples have reached a safe suturing height, thus increasing the risk of staple suturing failure. Furthermore, issues such as limited surgical precision, lack of anti-slip design in the foreskin dressing area, and lack of observation window design also urgently need to be addressed. Utility Model Content

[0005] The purpose of this invention is to provide a stapler to solve the problem of not being able to accurately determine whether the staples have reached the safe suturing height.

[0006] To achieve the above-mentioned objectives of this utility model, one embodiment of this utility model provides an anastomosis device, comprising:

[0007] The body includes a staple cartridge sleeve and a staple pusher assembly. The staple cartridge sleeve is provided with a first window that can display its internal structure. The first window is provided with a first mark. The staple pusher assembly is located inside the staple cartridge sleeve and has a second mark located inside the first window.

[0008] A drive unit, which is driven in conjunction with the pusher assembly to drive the pusher assembly to move along its axial direction relative to the staple cartridge sleeve, and to give the first mark a first state that coincides with the second mark and a second state that at least a portion of the first mark is separated from the second mark in the axial direction at a viewing angle perpendicular to the first window.

[0009] As a further improvement of one embodiment of the present invention, the first mark and the second mark are configured as positioning grooves or positioning watermarks.

[0010] As a further improvement of one embodiment of the present invention, the main body further includes an anvil, the anvil including an anvil body and a fixing cylinder, the fixing cylinder being disposed on a first side of the anvil body, and the staple cartridge sleeve and the pusher assembly being sleeved on the fixing cylinder.

[0011] As a further improvement of one embodiment of the present invention, the staple cartridge sleeve and the staple pusher assembly are coaxially arranged with the fixed cylinder, and the staple pusher assembly can move along the axial direction of the fixed cylinder toward the staple seat body to form a clamping space between the two.

[0012] As a further improvement of one embodiment of the present invention, the anvil body has a second side disposed opposite to the first side, and the second side is provided with a receiving groove.

[0013] As a further improvement of one embodiment of the present invention, a plurality of anti-slip protrusions are provided on the side wall of the fixed cylinder near the anvil body, and each anti-slip protrusion forms a closed annular structure along the circumference of the fixed cylinder.

[0014] As a further improvement of one embodiment of the present utility model, the pusher assembly and the nail cartridge sleeve are respectively provided with a second window and a third window, through which the anvil body and the anti-slip protrusion can be displayed.

[0015] As a further improvement of one embodiment of the present invention, the second window is composed of a first part and a second part, and the third window is composed of a third part and a fourth part. The first part and the third part display their respective inner structures towards the proximal end, and the second part and the fourth part display their respective inner structures towards the outside of the pusher assembly along the radial direction of the pusher assembly.

[0016] As a further improvement of one embodiment of the present invention, the fixed cylinder is provided with a length scale line along its axial direction, the push pin assembly is provided with a fourth window corresponding to the first window, the second mark is provided on the fourth window, and the length scale line can be displayed through the first window and the fourth window.

[0017] As a further improvement of one embodiment of the present invention, the main body further includes a staple cartridge sleeved on the fixed cylinder. The staple cartridge is disposed inside the staple cartridge sleeve and is located between the staple anchor body and the staple pusher assembly in the axial direction of the fixed cylinder. The staple cartridge is provided with a suture staple. When the suture staple is located in the clamping space, the staple anchor body and the staple pusher assembly respectively abut against the suture staple to make the suture staple in a sutured state.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] By using the first mark and the second mark in combination, when the drive unit drives the push pin assembly to move along its axis, it is easy to determine whether the suture height of the suture pin meets the standard for safe suture height by judging whether the first mark coincides with the second mark in the view perpendicular to the first window. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a stapler in the prior art;

[0021] Figure 2 This is a schematic diagram of the structure of a stapler according to an embodiment of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the exploded structure;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure of the central nail chamber sleeve;

[0024] Figure 5 for Figure 4 The main view;

[0025] Figure 6 for Figure 4 The right view;

[0026] Figure 7 for Figure 3 Schematic diagram of the push pin assembly;

[0027] Figure 8 for Figure 7 The main view;

[0028] Figure 9 for Figure 7 The right view;

[0029] Figure 10 This is a schematic diagram of the structure in one embodiment of the present invention, showing the overlap of the first mark and the second mark;

[0030] Figure 11 for Figure 10 A schematic diagram of the structure in which the first and second markers are separated;

[0031] Figure 12 for Figure 3 Schematic diagram of the structure of the center anchor seat;

[0032] Figure 13 for Figure 12 The main view;

[0033] Figure 14 for Figure 13 Enlarged view at point M;

[0034] Figure 15 This is a schematic diagram of the structure of displaying length scale lines through the first and fourth windows in one embodiment of the present invention;

[0035] Figure 16 This is a schematic diagram of the structure of displaying length scale lines through a second and third viewing window in another embodiment of the present invention.

[0036] The above description of the figures includes the following reference numerals:

[0037] 12', Pinned stock;

[0038] 1. Ontology;

[0039] 12. Pinned stock;

[0040] 121. First Window;

[0041] 122. First marker;

[0042] 123. Third window;

[0043] 1231. Part Three;

[0044] 1232. Part Four;

[0045] 13. Push-pin assembly;

[0046] 131. Second mark;

[0047] 132. Second window;

[0048] 1321. Part One;

[0049] 1322. Part Two;

[0050] 133. The fourth window;

[0051] 14. Anchor seat;

[0052] 141. Fix the cylinder;

[0053] 1411. Anti-slip protrusions;

[0054] 1412. Length scale lines;

[0055] 142. Anchor seat body;

[0056] 1421. Receiving tank;

[0057] 15. Pinned storage;

[0058] 16. Ring cutter;

[0059] 17. Shell;

[0060] 171. Clearance groove;

[0061] 2. Drive unit;

[0062] 21. Handle;

[0063] 22. Drive unit;

[0064] 23. Shaft;

[0065] 24. Slider;

[0066] 241. Connecting part. Detailed Implementation

[0067] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0068] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0069] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0070] To address the problem in existing technologies where it is impossible to accurately determine whether the staples have reached a safe suturing height, this invention provides a stapler.

[0071] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0072] like Figure 2-16 As shown, one embodiment of the present invention provides a stapler, including a body 1 and a drive unit 2.

[0073] refer to Figure 2-9 As shown, the main body 1 includes a staple cartridge sleeve 12 and a staple pusher assembly 13. The staple cartridge sleeve 12 is provided with a first window 121 that can display its internal structure. The first window 121 is provided with a first mark 122. The staple pusher assembly 13 is located inside the staple cartridge sleeve 12 and has a second mark 131 located inside the first window 121.

[0074] The drive unit 2 is in transmission cooperation with the pusher assembly 13 to drive the pusher assembly 13 to move along its axial direction relative to the staple cartridge sleeve 12, and to make the first mark 122 coincide with the second mark 131 in a first state when viewed from a perspective perpendicular to the first viewing window 121. Figure 10 As shown; and a second state having at least a portion separated from the second mark 131 in the axial direction, referenced Figure 11 As shown.

[0075] During the design process of the stapler, through multiple tests and calibrations, when the first mark 122 coincides with the second mark 131 in a view perpendicular to the first viewing window 121, the staple is within the standard range of the safe suturing height; while when the first mark 122 is partially separated from the second mark 131 in the axial direction in a view perpendicular to the first viewing window 121, or is completely separated from the second mark 131 in the axial direction, the staple is outside the standard range of the safe suturing height.

[0076] With the above settings, the first mark 122 and the second mark 131 cooperate. When the driving unit 2 drives the pusher assembly 13 to move along its axis, by judging whether the first mark 122 coincides with the second mark 131 in the view perpendicular to the first window 121, it is convenient to judge whether the suturing height of the suture nail meets the standard for safe suturing height.

[0077] It should be noted that the reference Figure 4-6 As shown, in this utility model, the nail cartridge sleeve 12 can be configured as a cylinder.

[0078] Preferably, the staple cartridge sleeve 12 and the staple pusher assembly 13 are coaxially arranged, and the viewing angle perpendicular to the first viewing window 121 is usually a viewing angle parallel to a certain radial direction of the staple cartridge sleeve 12.

[0079] As a preferred embodiment of the present invention, in this embodiment, reference is made to... Figure 4 As shown, the number of first windows 121 is set to two, and the two first windows 121 are arranged opposite to each other on the staple cartridge sleeve 12. Each staple cartridge sleeve 12 can be provided with a first mark 122.

[0080] Furthermore, in this embodiment, reference is made to... Figure 5 As shown, the first viewing window 121 is specifically configured as a through-slot design that penetrates the side wall of the staple cartridge sleeve 12, allowing direct observation of the interior of the staple cartridge sleeve 12. The first mark 122 is provided on the side wall of the through-slot, in the form of a positioning groove for precise positioning.

[0081] Accordingly, refer to Figure 7 , Figure 8The second mark 131 on the pusher assembly 13 also exists in the form of a positioning groove. When the pusher assembly 13 moves along its axial direction, by observing whether the positioning groove on the staple cartridge sleeve 12 coincides with or separates from the positioning groove on the pusher assembly 13 in a view perpendicular to the first viewing window 121, it can be quickly confirmed whether the suture staple has reached the required safe suturing height.

[0082] In other embodiments, the first window 121 may take the form of a transparent window on the side wall of the nail cartridge sleeve 12, and the first mark 122 is printed on the transparent window as a positioning watermark. The material of the transparent window may be transparent glass, transparent plexiglass, or transparent acrylic sheet, etc., and this utility model does not limit it. The manufacturer can select according to actual needs.

[0083] To match the first mark 122, the second mark 131 on the pusher assembly 13 is also designed as a positioning watermark. As the pusher assembly 13 moves along its axial direction, the safe height of the suture staple can also be determined by observing whether the positioning watermark on the staple cartridge sleeve 12 coincides with or separates from the positioning watermark on the pusher assembly 13 from a view perpendicular to the first viewing window 121.

[0084] These embodiments illustrate a variety of possible marker placement methods, but this invention is not limited to the specific forms described above. Any placement methods that are the same as or similar to those described above are included within the scope of protection of this invention.

[0085] Further, refer to Figure 12-13 As shown, the body 1 also includes an anvil 14, the anvil 14 including an anvil body 142 and a fixing cylinder 141. The fixing cylinder 141 is disposed on a first side of the anvil body 142 and extends in a direction away from the anvil body 142 and is used to fix the foreskin tissue.

[0086] return Figure 2-3 As shown, the staple cartridge sleeve 12 and the staple pusher assembly 13 are sleeved on the fixed cylinder 141. Preferably, the staple cartridge sleeve 12 and the staple pusher assembly 13 are coaxially arranged with the fixed cylinder 141.

[0087] Furthermore, the pusher assembly 13 is designed to move axially along the fixed cylinder 141 until it approaches the anvil body 142, thereby forming a clamping space between them for holding the suture staple. The design of the clamping space ensures stability and accuracy during the suturing process, and also ensures that the suture staple located in the clamping space is abutted at a safe suturing height.

[0088] Further, refer to Figure 12In its optimal presentation, the anvil body 142 also has a second side opposite the first side, on which a receiving groove 1421 is carefully designed. The main function of the receiving groove 1421 is to securely fix the glans penis. In actual surgical procedures, the glans penis is first placed and fixed in the receiving groove 1421, and then the foreskin is carefully wrapped around the anvil body 142 and securely tied to the fixing cylinder 141 with a cable tie. In this way, when the ring blade 16 is precisely aligned with the anvil body 142 and the cutting action is performed, the entire device can remain stable, thereby ensuring the accuracy and safety of the surgery. This design detail not only improves the convenience of surgical operation but also greatly enhances the success rate of the surgery.

[0089] Further, refer to Figure 13-14 As shown, multiple anti-slip protrusions 1411 are specially designed on the side wall of the fixing cylinder 141 near the anvil body 142. These protrusions cleverly form a closed annular structure along the circumference of the fixing cylinder 141. This design detail aims to effectively prevent unnecessary relative sliding between the foreskin and the fixing cylinder 141 when the foreskin is fixed to the fixing cylinder 141 with a cable tie. The presence of the anti-slip protrusions 1411 significantly improves the stability and reliability of the fixation, ensuring that the foreskin can be firmly held in the predetermined position during the operation, thereby guaranteeing the smooth progress and final effect of the operation, and increasing the reliability of the entire device and the safety of the operation.

[0090] For ease of observation, please refer to Figure 6 and Figure 9 As shown, the staple cartridge sleeve 12 and the staple pusher assembly 13 are respectively provided with a third viewing window 123 and a second viewing window 132. The design of these two windows allows the user to directly view the staple holder body 142 and the anti-slip protrusion 1411, thereby gaining timely insight into the condition of the foreskin fixed to the anti-slip protrusion 1411 and the postoperative foreskin bandaging. This design not only improves the operability during the surgical procedure but also further ensures the safety and accuracy of the surgery, enabling the doctor to make timely adjustments based on the actual situation.

[0091] Preferably, refer to Figure 7 As shown, the second window 132 consists of a first part 1321 and a second part 1322.

[0092] Then, turn Figure 4 For optimal display, the third window 123 consists of a third part 1231 and a fourth part 1232.

[0093] In this embodiment, the first portion 1321 and the third portion 1231 display their respective inner structures in a direction away from the anvil body 142. In this embodiment, the end containing the anvil body 142 is typically the distal end, while the end opposite the distal end is the proximal end. It can be understood that the direction away from the anvil body 142 is the same as the direction towards the proximal end; that is, the first portion 1321 and the third portion 1231 display their respective inner structures towards the proximal end. During actual operation, the operator operates the stapler from the proximal end. Through the first portion 1321 and the third portion 1231, it is easier to observe the anvil body 142 and the anti-slip protrusion 1411, which is more conducive to understanding the condition of the foreskin fixed to the anti-slip protrusion 1411 and the postoperative foreskin bandaging.

[0094] Furthermore, the second part 1322 and the fourth part 1232 expose their respective inner structures towards the outside of the pusher assembly 13 along the radial direction of the pusher assembly 13. This facilitates observation by the operator and assisting personnel.

[0095] It should be noted that the reference Figure 13 As shown, the fixing cylinder 141 has carefully designed length graduation lines 1412 along its axial direction. These graduation lines 1412 are used to measure the length of the foreskin tissue fixed on the fixing cylinder 141. This design allows the user to accurately estimate the length of foreskin to be cut before surgery, thus achieving precise management of the surgical process. This detailed design not only improves the accuracy of the surgery but also helps the user make more appropriate surgical decisions based on the actual situation, further ensuring the success rate of the surgery and the safety of the patient.

[0096] Further, refer to Figure 8 As shown, a fourth window 133 is provided on the push pin assembly 13 corresponding to the first window 121, and the second mark 131 is provided on the fourth window 133.

[0097] Specifically, when the fourth window 133 is configured as a through groove located on the push pin assembly 13, the second mark 131 is configured as a positioning groove provided on the side wall of the through groove; when the fourth window 133 is configured as a transparent window, the second mark 131 is a positioning watermark formed on the fourth window.

[0098] refer to Figure 15 As shown, the length scale line 1412 can be displayed through the first window 121 and the fourth window 133. During the surgery, the actual length of the foreskin cut can be confirmed in a timely manner, thereby further ensuring the success rate of the surgery and the safety of the patient.

[0099] Of course, in some embodiments, reference Figure 16As shown, the length scale line 1412 on the fixed cylinder 141 can also be displayed by cooperating with the second window 132 and the third window 123. This utility model does not limit this, and all arrangements that are the same as or similar to the above-described arrangement are included within the scope of protection of this utility model.

[0100] As a preferred method of use, the overlap of the first mark 122 and the second mark 131 can be observed through the first window 121 and the fourth window 133 to determine whether the suture height of the staple meets the standard for safe suture height. Simultaneously, the length scale line 1412 can be observed through the first window 121 and the fourth window 133 to determine the expected and actual length of foreskin to be cut. Through the second window 132 and the third window 123, the anvil body 142 and the anti-slip protrusion 1411 can be directly viewed, allowing for timely understanding of the foreskin fixed to the anti-slip protrusion 1411 and the postoperative foreskin bandaging. This setup enables effective observation of the entire surgical process, further enhancing the safety and precision of the surgery.

[0101] Furthermore, the main body 1 also includes a staple cartridge 15 sleeved on the fixing cylinder 141. This staple cartridge 15 is carefully positioned inside the staple cartridge sleeve 12, and in the axial direction of the fixing cylinder 141, it is precisely located between the anvil body 142 and the staple pusher assembly 13. The staple cartridge 15 contains suture staples, which play a crucial role during the surgical procedure. When the suture staple is within the clamping space, the anvil 14 and the staple pusher assembly 13 abut against both ends of the suture staple. This design ensures that the suture staple is in an optimal suturing state, thereby effectively completing the suturing task. This structural detail not only improves the convenience of the surgery but also greatly enhances the accuracy and reliability of the suturing, providing strong protection for patient safety.

[0102] Furthermore, the body 1 also includes a ring blade 16, which is also sleeved on the fixed cylinder 141. The drive unit 2 can achieve effective transmission cooperation with the ring blade 16. During the operation, the drive unit 2 drives the ring blade 16 to move towards the anvil body 142 until the ring blade 16 and the anvil body 142 are perfectly matched, thereby enabling effective cutting of the foreskin. This design ensures the accuracy of the cutting and the smooth progress of the operation.

[0103] It should be specifically clarified that, in this embodiment, reference... Figure 3As shown, the drive unit 2 comprises several key components, including a handle 21, a drive unit 22, a rotating shaft 23, and a slider 24. The main body 1 also includes a housing 17, and the staple cartridge sleeve 12 is connected to the housing 17 to form a stapler shell with a receiving cavity. The fixed cylinder 141, the staple pusher assembly 13, the staple cartridge 15, and the ring cutter 16 are all disposed within the receiving cavity.

[0104] The slider 24 is cleverly fitted onto the fixed cylinder 141 and placed inside the housing 17. It also has a connecting part 241 that protrudes out of the housing 17.

[0105] Still for reference Figure 3 As shown, to accommodate the movement of the slider 24, the housing 17 is specially designed with multiple clearance grooves 171 extending in a direction parallel to the axial direction of the fixed cylinder 141. The connecting part 241 is disposed in these clearance grooves 171 and can move freely within them. The pusher assembly 13 and the slider 24 are connected to each other in the part inside the nail cartridge sleeve 12, ensuring their coordinated operation.

[0106] One end of the handle 21 is pivotally connected to the staple cartridge sleeve 12 and / or the housing 17 via a pivot 23. Specifically, one end of the handle 21 can be pivotally connected to the staple cartridge sleeve 12 or to the housing 17 via the pivot 23.

[0107] In some embodiments, the staple cartridge sleeve 12 is connected to the housing 17 and a plug-in connection structure is formed at the mating point. One end of the handle 21 can be pivotally connected to this connection structure via a pivot 23.

[0108] In the above configuration, the handle 21 can rotate freely. One end of the drive unit 22 is pivotally connected to the connecting part 241 of the slider 24, and the other end is connected between the two ends of the handle 21, also pivotally connected to the handle 21. When the user drives the handle 21 to rotate, this structure enables the drive unit 22 to drive the slider 24 to move along the axial direction of the fixed cylinder 141.

[0109] Furthermore, the arrangement of the ring blade 16 is also quite flexible. In this embodiment, the ring blade 16 can be either mounted on the pusher assembly 13 or connected to the slider 24 via other mounting components. This design allows the entire device to adapt more flexibly to different operational needs during surgery.

[0110] In summary, the embodiments of this utility model achieve the following technical effects:

[0111] First, by cooperating with the first mark 122 and the second mark 131, when the driving unit 2 drives the push pin assembly 13 to move along its axis, by judging whether the first mark 122 coincides with the second mark 131 in the view perpendicular to the first window 121, it is convenient to judge whether the suturing height of the suture pin meets the standard of safe suturing height.

[0112] Secondly, by using the second window 132 and the third window 123 together, users can intuitively view the status of the pin seat body 142 and the anti-slip protrusion 1411, and thus promptly understand the condition of the foreskin fixed on the anti-slip protrusion 1411 and the postoperative foreskin bandaging. This design not only improves the operability of the operation process, but also further ensures the safety and accuracy of the operation.

[0113] Third, the anti-slip protrusion 1411 significantly improves the stability and reliability of foreskin fixation, ensuring that the foreskin can be firmly held in the predetermined position during the operation, thereby guaranteeing the smooth progress and final effect of the operation, and thus increasing the reliability of the entire device and the safety of the operation.

[0114] Fourth, a length scale line 1412 is set on the fixed cylinder 141. The length scale line 1412 is displayed through the cooperation of the first window 121 and the fourth window 133. The expected tissue length and the actual tissue length can be quickly and accurately confirmed during the operation, thereby realizing precise management of the operation.

[0115] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0116] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0117] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0118] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anastomosis device, comprising: The body comprises a cartridge sleeve and a pusher assembly, the cartridge sleeve is provided with a first window for showing the internal structure of the cartridge sleeve, the first window is provided with a first mark, and the pusher assembly is arranged in the cartridge sleeve and has a second mark inside the first window. The driving unit is in transmission cooperation with the pusher assembly to drive the pusher assembly to move along the axial direction relative to the cartridge sleeve, and the first mark has a first state of coinciding with the second mark and a second state of being separated from at least part of the second mark in the axial direction in the visual angle perpendicular to the first window. The first mark and the second mark are arranged as positioning grooves or positioning watermarks.

2. The anastomat of claim 1, wherein The body further comprises a stopper seat, the stopper seat comprises a stopper seat body and a fixed cylinder, the fixed cylinder is arranged on the first side of the stopper seat body, and the cartridge sleeve and the pusher assembly are sleeved on the fixed cylinder.

3. The anastomat of claim 1 wherein, The cartridge sleeve and the pusher assembly are coaxially arranged with the fixed cylinder, and the pusher assembly can move towards the stopper seat body along the axial direction of the fixed cylinder to form a clamping space between the pusher assembly and the stopper seat body.

4. The anastomosis device according to claim 3, wherein The stopper seat body has a second side opposite to the first side, and the second side is provided with a receiving groove.

5. The anastomosis device according to claim 4, wherein A plurality of anti-skid protrusions are arranged on the side wall of the fixed cylinder close to the stopper seat body, and each anti-skid protrusion forms a closed annular structure along the circumferential direction of the fixed cylinder.

6. The anastomosis device according to claim 5, wherein The pusher assembly and the cartridge sleeve are correspondingly provided with a second window and a third window, and the stopper seat body and the anti-skid protrusions can be shown through the second window and the third window.

7. The anastomat of claim 6 wherein, The second window is composed of a first part and a second part, and the third window is composed of a third part and a fourth part, wherein the first part and the third part show the structure inside each of them towards the proximal end, and the second part and the fourth part show the structure inside each of them towards the outside of the pusher assembly along the radial direction of the pusher assembly.

8. The anastomat of claim 7 wherein, A length scale is arranged on the fixed cylinder along the axial direction thereof, a fourth window is arranged on the pusher assembly corresponding to the first window, the second mark is arranged on the fourth window, and the length scale can be shown through the first window and the fourth window.

9. The anastomat of claim 3 wherein, The body further comprises a cartridge sleeved on the fixed cylinder, the cartridge is arranged in the cartridge sleeve and located between the stopper seat body and the pusher assembly in the axial direction of the fixed cylinder, and the cartridge is provided with a staple, when the staple is located in the clamping space, the stopper seat body and the pusher assembly respectively abut against the staple to make the staple in a stapling state.

10. The anastomat of claim 4 wherein, ​

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