Anastomosis execution assembly and anastomat

Abstract

The utility model discloses an anastomosis execution assembly and an anastomat. The anastomosis execution assembly comprises a forceps body assembly, a connecting piece and an elastic piece. The pincer body assembly comprises a first pincer body and a second pincer body, and the second pincer body is configured to be capable of pivoting relative to the first pincer body so as to close or open the pincer body assembly; the connecting piece is arranged to be connected with the clamp body assembly; the elastic piece comprises a first connecting part and a second connecting part, the first connecting part is connected with the connecting piece, and the second connecting part is connected with the second clamp body; and the second connecting part is configured to apply an elastic force to the second clamp body, so that the second clamp body pivots relative to the first clamp body to open the clamp body assembly. According to the anastomat provided by the utility model, the second clamp body can move away from the first clamp body under the action of the elastic force of the elastic piece and is separated from the first clamp body, so that the far-end actuator is opened to a proper angle so as to be enough to release target tissues.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to an anastomosis execution assembly and an anastomosis device. BACKGROUND

[0002] In surgical treatment, various anastomosis devices are widely used, such as skin anastomosis devices, digestive tract (esophagus, gastrointestinal tract, etc.) anastomosis devices, and endoscopic anastomosis devices. These anastomosis devices are devices used in medicine to replace traditional manual suturing. Due to the development of modern technology and the improvement of manufacturing technology, various anastomosis devices currently used in clinical practice have the advantages of rapid and accurate suturing, simple operation, less bleeding, and few side effects and surgical complications. Therefore, anastomosis devices can be used to remove lesions, and are widely used at home and abroad.

[0003] The existing endoscopic anastomosis device directly sets a set of elastic members between the first pliers body and the second pliers body. For example, the second pliers body includes a cartridge, and a set of elastic members is placed on the upper surface of the proximal end of the cartridge. The elastic force of the elastic members causes the first pliers body and the second pliers body to open. When the cartridge is disassembled from the cartridge seat, the elastic members will be disassembled with the cartridge assembly. When the cartridge is installed again, the elastic members are not easy to install to the correct position, thereby causing the first pliers body and the second pliers body to open and close. SUMMARY

[0004] The anastomosis execution assembly provided by at least one embodiment of the utility model includes a pliers body assembly, a connecting member, and an elastic member. The pliers body assembly includes a first pliers body and a second pliers body. The second pliers body is configured to be pivotable relative to the first pliers body to close or open the pliers body assembly. The connecting member is configured to be connected to the pliers body assembly. The elastic member includes a first connecting portion and a second connecting portion. The first connecting portion is connected to the connecting member, and the second connecting portion is connected to the second pliers body. The second connecting portion is configured to apply an elastic force to the second pliers body to cause the second pliers body to pivot relative to the first pliers body to open the pliers body assembly.

[0005] For example, the anastomosis execution assembly provided by one embodiment of the utility model further includes a closing mechanism. The closing mechanism is configured to: when the closing mechanism applies a driving force to the second pliers body to drive the second pliers body to pivot towards the first pliers body, the elastic member elastically deforms to apply an elastic force to the second pliers body, and the driving force overcomes the elastic force to close the pliers body assembly; and when the closing mechanism stops applying the driving force to the second pliers body, the second pliers body pivots away from the first pliers body under the action of the elastic force to open the pliers body assembly.

[0006] For example, the anastomosis execution assembly provided in an embodiment of the utility model comprises a first recess, the shape of the first recess is matched with the shape of the first connecting part of the elastic piece, and the first connecting part is arranged in the first recess; the second connecting part of the elastic piece is configured to pivot with the second forceps body to make the elastic piece elastically deform to exert the elastic force on the second forceps body.

[0007] For example, the anastomosis execution assembly provided in an embodiment of the utility model comprises a first recess, the shape of the first recess is matched with the shape of the first connecting part of the elastic piece, and the first connecting part is arranged in the first recess; the second connecting part of the elastic piece is configured to pivot with the second forceps body to make the elastic piece elastically deform to exert the elastic force on the second forceps body.

[0008] For example, the anastomosis execution assembly provided in an embodiment of the utility model comprises a first recess, the shape of the first recess is matched with the shape of the first connecting part of the elastic piece, and the first connecting part is arranged in the first recess; the second connecting part of the elastic piece is configured to pivot with the second forceps body to make the elastic piece elastically deform to exert the elastic force on the second forceps body.

[0009] For example, the anastomosis execution assembly provided in an embodiment of the utility model comprises a first recess, the shape of the first recess is matched with the shape of the first connecting part of the elastic piece, and the first connecting part is arranged in the first recess; the second connecting part of the elastic piece is configured to pivot with the second forceps body to make the elastic piece elastically deform to exert the elastic force on the second forceps body.

[0010] For example, the anastomosis execution assembly provided in an embodiment of the utility model comprises a first recess, the shape of the first recess is matched with the shape of the first connecting part of the elastic piece, and the first connecting part is arranged in the first recess; the second connecting part of the elastic piece is configured to pivot with the second forceps body to make the elastic piece elastically deform to exert the elastic force on the second forceps body.

[0011] For example, the anastomosis execution assembly provided in an embodiment of the utility model comprises a first recess, the shape of the first recess is matched with the shape of the first connecting part of the elastic piece, and the first connecting part is arranged in the first recess; the second connecting part of the elastic piece is configured to pivot with the second forceps body to make the elastic piece elastically deform to exert the elastic force on the second forceps body.

[0012] For example, the anastomosis execution assembly provided in the embodiment of the present application has the advantages that the width of the elastic member in the radial direction is not greater than 1 / 3 of the width of the second forceps body in the radial direction.

[0013] For example, the anastomosis execution assembly provided in the embodiment of the present application has the advantages that the at least two bending portions further comprise a first bending portion connected with the second bending portion and a fourth bending portion connected with the third bending portion, the first bending portion comprises a first connecting portion of the elastic member, and the fourth bending portion comprises a second connecting portion of the elastic member; the first bending portion is arranged to extend along the upper surface of the first forceps body close to the connecting member and extend from the second bending portion towards the proximal end of the connecting member or the distal end of the connecting member.

[0014] For example, the anastomosis execution assembly provided in the embodiment of the present application has the advantages that the second forceps body is a cartridge assembly, the first forceps body is a staple abutment, the cartridge assembly comprises a cartridge seat and a cartridge detachably mounted on the cartridge seat, the cartridge is configured to accommodate anastomosis staples, and the second connecting portion of the elastic member is connected with the cartridge seat.

[0015] For example, the anastomosis execution assembly provided in the embodiment of the present application has the advantages that the cartridge seat comprises a bottom surface facing the cartridge, a side wall connected with the bottom surface of the cartridge seat and intersecting the bottom surface of the cartridge seat, and a protrusion, the upper surface of the protrusion faces away from the bottom surface of the cartridge seat, and the second connecting portion of the elastic member abuts on the upper surface of the protrusion.

[0016] For example, the anastomosis execution assembly provided in the embodiment of the present application has the advantages that the protrusion is connected with the side wall and protrudes from the side wall towards the inner side of the side wall, and the protrusion and the bottom surface of the cartridge seat have a longitudinal spacing, the longitudinal spacing is configured to accommodate the proximal end portion of the cartridge.

[0017] For example, the anastomosis execution assembly provided in the embodiment of the present application has the advantages that the protrusion is connected with the bottom surface and the side wall of the cartridge seat respectively, and is configured to be located at the proximal side of the cartridge when the cartridge is mounted to the cartridge seat.

[0018] The anastomosis execution assembly provided in the embodiment of the present application has the advantages that the width of the elastic member in the radial direction is not greater than 1 / 3 of the width of the second forceps body in the radial direction.

[0019] The anastomat provided by the utility model, the elastic member is arranged on the connecting piece, the second clamp body can be pivoted away from the first clamp body under the elastic force of the elastic member and separated from the first clamp body, so that the clamp body assembly is opened to a proper angle, so that the tissue is clamped at a proper angle or the target tissue is released after the anastomosis is completed, and the elastic member does not need to be repeatedly installed, when the nail bin is disassembled, the first connecting part of the original elastic member is reliably connected with the connecting piece and the second connecting part is connected with the second clamp body, so that the second clamp body is separated from the first clamp body to a proper angle, and the reliability and stability of the anastomat are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below, and obviously, the drawings in the following description only relate to some embodiments of the utility model, rather than limit the utility model.

[0021] Figure 1 is a partial structure schematic view of an anastomat provided by an embodiment of the utility model;

[0022] Figure 2 is a partial structure schematic view of an anastomat in an unclosed state provided by an embodiment of the utility model;

[0023] Figure 3 is a partial structure schematic view of an anastomat in a closed state provided by an embodiment of the utility model;

[0024] Figure 4 is a partial structure schematic view of an anastomat in an opened state provided by an embodiment of the utility model, Figure 4 on the basis of Figure 2 further shows the side wall connecting part of the nail bin seat;

[0025] Figure 5 is Figure 2 the partial structure schematic view of the anastomat in the perspective view from above;

[0026] Figure 6 is Figure 5 the enlarged schematic view of the partial structure in the dashed line frame in

[0027] Figure 7 is a structure schematic view of a connecting piece of an anastomat provided by an embodiment of the utility model;

[0028] Figure 8 is a structure schematic view of an elastic member of an anastomat provided by an embodiment of the utility model;

[0029] Figure 9 is a partial schematic view of an anastomosis execution assembly including a connecting piece and a driving rod part provided by an embodiment of the utility model;

[0030] Figure 10 is a schematic view of the anastomat of the embodiment of the present application, wherein the nail bin is installed obliquely under the limitation of the protrusion;

[0031] Figure 11 is a schematic view of the partial structure of the anastomat of another embodiment of the present application, which comprises another elastic member;

[0032] Figure 12 is a schematic view of the partial structure of the anastomat of another embodiment of the present application, which comprises another protrusion. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0034] Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the common meanings thereof by those skilled in the art to which the present application belongs. The words "first", "second" and similar words used in the description of the present patent application and claims are not intended to denote any order, quantity or importance, but are only used to distinguish different components. The words "comprise", "include" and similar words mean that the components or objects listed before the words cover the components or objects listed after the words and their equivalents, and do not exclude other components or objects. "In", "out", "up", "down" and the like are only used to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships may also be changed accordingly.

[0035] The drawings in the present application are not strictly drawn according to the actual proportions, and the specific sizes and quantities of the various structures can be determined according to actual needs. The drawings described in the present application are only schematic views.

[0036] The features of "parallel", "perpendicular", and "same" used in the present utility model include the strict sense of "parallel", "perpendicular", "same", and the case of containing certain error, such as "substantially parallel", "substantially overlapping", "substantially same", considering the measurement and the error related to the measurement of a specific quantity (for example, the limitation of the measurement system), which represents the acceptable deviation range for a specific value determined by the ordinary skill in the art. For example, "substantially" can represent within one or more standard deviations, and within 10% or 5% deviation range of the value if not otherwise specified.

[0037] The terms "proximal" and "distal" are used herein with respect to a clinician manipulating the surgical instrument. In embodiments of the present utility model, the term "proximal" refers to a portion of a component or structure involved that is closer to the clinician, and the term "distal" refers to a portion of a component or structure involved that is further away from the clinician.

[0038] The stapler generally comprises a handle part, a sleeve assembly and a stapling execution assembly. The stapling execution assembly comprises a jaw assembly, and the jaw assembly comprises a first jaw and a second jaw. For example, the first jaw comprises a staple seating, and the second jaw comprises a cartridge assembly, wherein the cartridge assembly comprises a cartridge and a cartridge seat. The second jaw is pivotably connected with the first jaw. In the existing reusable stapler, for example, the cartridge is detachably mounted on the cartridge seat. After single use, the fired cartridge can be detached, and a new cartridge is mounted on the cartridge seat. The first jaw and the second jaw can be closed to each other to make the distal end executioner in a closed state, and can be away from each other to make the distal end executioner in an open state. The distal end executioner is closed to clamp the target tissue, for example, when the anastomosis staples in the cartridge are fired to suture the target tissue and then the target tissue is cut, after the cutting operation is completed, the distal end executioner needs to be opened to release the target tissue, at this time, even if the closing mechanism driving the distal end executioner to close is withdrawn, the distal end executioner is no longer forced to close, due to the action force between the first jaw and the second jaw and the target tissue, etc., it is not easy to automatically realize the separation of each other to make the distal end executioner open, or even if the second jaw is pivoted to be away from the first jaw, the opening angle formed between the first jaw and the second jaw is small, and the target tissue cannot be released smoothly, and often the external force needs to be used to open the two to a proper angle, and at this time, the distal end executioner is located in the patient's body, and it is difficult to open by artificial intervention and there is a risk of infection, which causes inconvenience to the operation.

[0039] The anastomosis execution assembly provided by at least one embodiment of the utility model includes a clamp body assembly, a connecting piece and an elastic piece. The clamp body assembly includes a first clamp body and a second clamp body, the second clamp body is configured to be pivotable relative to the first clamp body to close or open the clamp body assembly; the connecting piece is arranged to be connected with the clamp body assembly; the elastic piece includes a first connecting part and a second connecting part, the first connecting part is connected with the connecting piece, the second connecting part is connected with the second clamp body, and the second connecting part is configured to exert an elastic force on the second clamp body to make the second clamp body pivot relative to the first clamp body to open the clamp body assembly.

[0040] The anastomosis device provided by at least one embodiment of the utility model includes a handle part, a sleeve assembly and the anastomosis execution assembly provided by the embodiment of the utility model.

[0041] According to the anastomosis device provided by the embodiment of the utility model, the second clamp body can move away from the first clamp body under the elastic force of the elastic piece and separate from the first clamp body, so as to open the distal end execution assembly to a suitable angle to clamp the tissue at a suitable angle or release the target tissue after the anastomosis is completed. The problem that the first clamp body and the second clamp body are not easy to separate after the operation is solved, or the opening angle formed between the first clamp body and the second clamp body is small, so that the target tissue can be smoothly released by the distal end execution assembly, and the first clamp body and the second clamp body do not need to be opened to a suitable angle by artificial intervention, which is convenient for operation and avoids the infection risk brought by artificial intervention.

[0042] Exemplarily, Figure 1 is a partial structure schematic view of an anastomosis device 10 provided by an embodiment of the utility model; Figure 2 is a partial structure schematic view of an anastomosis device 10 in an unclosed state provided by an embodiment of the utility model. Reference Figure 1 and Figure 2 The anastomosis device 10 includes an anastomosis execution assembly 100 Figure 1The anastomosis device 10 is also called an anastomat. The anastomosis performing assembly 100 comprises a jaw assembly 1 and a shaft assembly 8. The jaw assembly 1 is connected with the distal end of the shaft assembly 8 through a connecting piece 6. The jaw assembly 1 comprises a first jaw 11 and a second jaw 12, and the second jaw 12 is pivotable relative to the first jaw 11. The anastomosis device 10 extends along an axis D1. The jaw assembly 1 is configured to have the first jaw 11 and the second jaw 12 open in an initial state. The shaft assembly 8 internally contains a driving rod assembly, and the distal end of the driving rod assembly is connected with a closing mechanism 2 (for example, a cutting device, and the closing mechanism is multiplexed as the cutting device here). The driving rod assembly is operated through the handle part, so that the driving rod assembly moves towards the distal end of the anastomosis device 10, thereby driving the closing mechanism 2 to move towards the distal end of the anastomosis device 10, so that the first jaw 11 and the second jaw 12 are closed to clamp and suture and cut the target tissue.

[0043] Figure 3 is a partial structure schematic view of an anastomosis device 10 in a closed state according to an embodiment of the present application; Figure 8 is a structure schematic view of an elastic member of an anastomosis device according to an embodiment of the present application. It is referred to Figures 1-3 and Figure 8 The anastomosis device 10 further comprises an elastic member 3. The elastic member 3 is located at the proximal end of the jaw assembly 1, the proximal end of the elastic member 3 is connected with the connecting piece 6, and the distal end of the elastic member 3 is movably connected with the second jaw 12, and is configured to exert an elastic force on the second jaw 12 to separate the second jaw 12 from the first jaw 11 and open the jaw assembly 1.

[0044] According to the embodiment of the utility model, the second clamp body 12 can move away from the first clamp body 11 under the elastic force of the elastic member 3 and separate from the first clamp body 11, so as to open the clamp body assembly 1. Through the intervention of the elastic force of the elastic member 3, the clamp body assembly 1 can be opened to a suitable angle, that is, the included angle between the second clamp body 12 and the first clamp body 11 is large enough to release the target tissue. For example, the second clamp body 12 can be a staple cartridge assembly including a staple cartridge. When the clamp body assembly 1 is in the closed state, the anastomosis staples in the staple cartridge of the second clamp body 12 are fired to suture the target tissue, and then the sutured tissue is cut. After the cutting operation is completed, the drive rod assembly is retracted to the proximal end of the anastomosis device 10, and the closing mechanism 2 is returned to the proximal end of the rod body assembly 8, and the clamp body assembly 1 is no longer forced to close. Even if the first clamp body 11 and the second clamp body 12 are not easily separated from each other to open the clamp body assembly 1 due to the action force between the target tissue clamped between the first clamp body 11 and the second clamp body 12 and the like, the second clamp body 12 can be separated from the first clamp body 11 under the elastic force of the elastic member 3 through the action of the elastic member 3, so as to open the clamp body assembly 1 to a suitable angle to smoothly release the target tissue. Thus, the problem that the first clamp body 11 and the second clamp body 12 are not easily separated after the operation is avoided, and the problem that the second clamp body 12 pivots away from the first clamp body 11 without external intervention to form an opening angle between the first clamp body 11 and the second clamp body 12 is small is avoided, so that the target tissue can be smoothly released by the clamp body assembly 1, and manual intervention is not needed to open the first clamp body 11 and the second clamp body 12 to a suitable angle, which facilitates the operation and avoids the risk of infection brought by manual intervention.

[0045] The anastomosis device of the utility model, the elastic member is built-in in the anastomosis execution assembly, and the elastic member does not need to be repeatedly installed. The process of disassembling and installing the staple cartridge on the second clamp body does not affect the connection of the pre-set elastic member, for example, the first connecting part of the elastic member is reliably connected with the connecting piece, and the second connecting part of the elastic member is connected with the second clamp body, so that the second clamp body and the first clamp body can be automatically separated to a suitable angle after the tissue suturing and cutting operation is completed, and the reliability and stability of the anastomosis device are improved.

[0046] Figure 7 It is a structure schematic view of the connecting piece of the anastomosis device provided by an embodiment of the utility model. Figure 8 It is a structure schematic view of the elastic member of the anastomosis device provided by an embodiment of the utility model. For example, referring to Figure 2 And Figures 7-8, the anastomosis device 10 further comprises a connecting member 6, the first connecting portion 31 of the elastic member 3 is connected with the connecting member 6, the first connecting portion 31 comprises the proximal end of the elastic member 3, the second connecting portion 32 of the elastic member 3 is connected with the second jaw 12, and the second connecting portion 32 comprises the distal end of the elastic member 3. Thus, in combination Figure 2 , the first connecting portion 31 of the elastic member 3 can be arranged on the connecting member 6, and the proximal end of the elastic member 6 is covered and pressed by the first jaw 11, so that the movement of the first connecting portion 31 of the elastic member 3 is limited in the longitudinal direction D2 by the joint action of the first jaw 11 and the connecting member 6, wherein the longitudinal direction D2 is perpendicular to the axial direction D1, and since the second connecting portion 32 of the elastic member 3 is connected with the second jaw 12, for example, abuts against the second jaw 12, when the elastic member 3 is elastically deformed to generate an elastic force (for example, an elastic restoring force), the elastic force can be applied to the second jaw 12 to drive the second jaw 12 to pivot relative to the first jaw 11.

[0047] For example, referring to Figure 2 , the anastomosis device 10 further comprises a closing mechanism 2 configured to apply a driving force to the second jaw 12 to drive the second jaw 12 to pivot towards the first jaw 11, for example, the closing mechanism 2 moves along the axial direction D1 towards the distal end (the right side in the figure) of the anastomosis device 10 to close the jaw assembly 1 to apply a driving force to the jaw assembly 1 so that the second jaw 12 and the first jaw 11 are closed to each other, at this time, the second connecting portion 32 of the elastic member 3 elastically deforms the elastic member 3 to apply an elastic force to the second jaw 12 as the second jaw 12 pivots towards the first jaw 11, and the driving force of the closing mechanism 2 overcomes the elastic force to close the anastomosis execution assembly 1, and the state of the anastomosis device 10 changes from the open state shown in Figure 2 to the closed state shown in Figure 3 . The closing mechanism 2 is also configured to stop applying a driving force to the second jaw 12, for example, the closing mechanism 2 moves along the axial direction D1 towards the proximal end of the anastomosis device 10 so that the jaw assembly 1 is no longer subjected to the driving force so that the second jaw 12 and the first jaw 11 are closed to each other, at this time, the second jaw 12 moves away from the first jaw 11 under the action of the elastic force applied by the elastic member 3, and is separated from the first jaw 11, so as to open the jaw assembly 1, and the state of the anastomosis device 10 changes from the closed state shown in Figure 3 to the open state shown in Figure 2 , and in this process, the jaw assembly 1 can be opened to a suitable angle by the intervention of the elastic force applied by the elastic member 3.

[0048] The present embodiment takes the second jaw 12 as a staple cartridge assembly and the first jaw 11 as a staple holding deck as an example for introduction. Of course, in some other embodiments, the second jaw 12 is a staple holding deck and the first jaw 11 is a staple cartridge assembly.

[0049] Figure 4An embodiment of the anastomosis device provided by the utility model discloses a local structure schematic view under the open state, Figure 4 In Figure 2 Further, the side wall connecting portion 120 of the cartridge seat 121 is shown. Figure 5 Is Figure 2 The local structure schematic view of the anastomosis device under the overhead perspective view. Figure 6 Is Figure 5 The enlarged schematic view of the local part in the dashed box. For example, referring to Figures 2-6 , the cartridge assembly (i.e., the second forceps body 12) includes the cartridge seat 121 and the cartridge 122 detachably installed on the cartridge seat 121, and the anastomosis needle is contained in the cartridge 122. The anastomosis needle can be fired out of the cartridge 122 to enter the target tissue clamped by the forceps body assembly 1 to suture the target tissue. For example, the second connecting portion 32 of the elastic member 3 is connected with the cartridge seat 121, for example, abutting or fixedly connected, so that the elastic member 3 separates the second forceps body 12 (i.e., the cartridge assembly) from the first forceps body 11 (i.e., the anastomosis needle abutting seat) by exerting an elastic force on the cartridge seat 121.

[0050] For example, referring to Figure 4 , the second forceps body 12 of the anastomosis device 10 can further include the side wall connecting portion 120 of the cartridge seat 121, and the proximal end of the side wall connecting portion 120 of the cartridge seat 121 is rotationally connected with the connecting member 6, and the cartridge seat 121 can rotate relative to the connecting member 6. Moreover, the side wall connecting portion 120 of the cartridge seat 121 is located on the side surface of the second forceps body 12, and the orthographic projection of the side wall connecting portion 120 on the reference surface parallel to the longitudinal direction D2 and parallel to the axial direction D1 covers at least part of the orthographic projection of the elastic member 2 on the reference surface, so as to connect the second forceps body 12 to the connecting member 6, so that the second forceps body 12 can rotate relative to the connecting member 6, and the elastic member 3 and the cartridge in the cartridge seat 121 and other structures are protected and supported.

[0051] In order to facilitate the description of the structure and positional relationship of the elastic member 3, Figure 2 The side wall connecting portion 120 of the cartridge seat 121 close to the observer is omitted in

[0052] For example, referring to Figure 2 , Figure 7 and Figure 8The elastic member 3 comprises a first connecting portion 31. The connecting member 6 comprises a groove 6b, the shape of the groove 6b matches the shape of the first connecting portion 31 of the elastic member 3, and the first connecting portion 31 of the elastic member 3 is embedded in the groove 6b; the second connecting portion 32 of the elastic member 3 is configured to pivot with the movement of the second jaw body 12 to cause the elastic member 3 to elastically deform to exert an elastic force on the second jaw body 12. Embedding the first connecting portion 31 of the elastic member 3 in the groove 6b can stably limit the movement of the elastic member 3, especially the movement of the elastic member 3 in the longitudinal direction D2 and the axial direction D1, and is conducive to extruding the elastic member 6 with the groove wall of the groove 6b when the jaw assembly 1 is closed, so that the elastic member 6 elastically deforms enough to generate a large enough elastic force.

[0053] For example, referring to Figure 2 and Figure 7 , the proximal end of the elastic member 3 is arranged on the upper surface 6c of the connecting member 6 close to the first jaw body 11, for example, the first bending portion 3a of the elastic member 3 introduced below is arranged on the upper surface 6c of the connecting member 6 close to the first jaw body 11, as shown in Figure 7 , the upper surface 6c is the top surface of the connecting member 6. As shown in Figure 2 , when the anastomosis execution assembly 1 is opened, the distal end of the elastic member 3 is located at a first position away from the first jaw body 11, for example, the fourth bending portion 3d of the elastic member 3 introduced below is located at a first position away from the first jaw body 11. When the jaw assembly 1 is closed, the distal end of the elastic member 3 is located at a second position close to the first jaw body 11, for example, the fourth bending portion 3d of the elastic member 3 is located at a second position close to the first jaw body 11, referring to Figure 3 , the second position is relative to Figure 2The first position is closer to the first jaw body 11. The longitudinal direction D2 is perpendicular to the axial direction D1, and the first jaw body 11 and the second jaw body 12 are opposite to each other in the longitudinal direction D2. In the longitudinal direction D2, the height of the second position is higher than that of the first position, so that when the jaw assembly 1 is closed, the elastic member 3 is extruded to deform, and an elastic force is generated on the second jaw body 12, and the driving force of the closing mechanism 2 on the second jaw body 12 to close the first jaw body 11 overcomes the elastic force, so that the second jaw body 12 is closed with the first jaw body 11. The proximal end of the elastic member 3 is arranged on the upper surface 6c of the connecting member 6 close to the first jaw body 11, so that the position of the proximal end of the elastic member 3 is higher, which is beneficial to make the elastic member have a larger span in the longitudinal direction D2, which is not only beneficial to stably fix the elastic member 3, but also beneficial to make the elastic member 3 have a large enough deformation amount. For example, the height of the second position in the longitudinal direction D2 is substantially equal to the height of the upper surface 6c of the connecting member 6 in the longitudinal direction D2, which is beneficial to fully utilize the limited space to make the elastic member 3 have a larger deformation amount when the jaw assembly 1 is closed, and is beneficial to the compactness and regularity of the cooperation structure of the connecting member 6, the nail abutting seat and the nail cartridge assembly in the closed state of the jaw assembly 1.

[0054] For example, referring to Figures 2-3 and Figures 7-8 , the elastic member 3 is in a bent shape and includes a plurality of bending portions, and adjacent two bending portions are rotationally connected with an included angle, and the included angle is not zero and not 180°, that is, the two bending portions are not parallel and not coincident. The bent design is not only beneficial to stably fix the elastic member 3, but also beneficial to realize a larger elastic deformation by using a plurality of bending portions.

[0055] For example, referring to Figures 2-3 and Figures 7-8 , the plurality of bending portions include a first bending portion 3a, a second bending portion 3b, a third bending portion 3c and a fourth bending portion 3d connected in sequence. For example, the first connecting portion 31 of the elastic member 3 includes the first bending portion 3a and the second bending portion 3b, and the second connecting portion 32 of the elastic member 3 includes the third bending portion 3c and the fourth bending portion 3d. For example, as shown in Figure 3 , in the closed state of the jaw assembly 1, the included angle between the second bending portion 3b and the third bending portion 3c is a first included angle θ1, and the first included angle θ1 is an acute angle, which is beneficial to make the elastic member 6 have a sufficient elastic deformation, so as to generate a large enough elastic force. For example, the value of the first included angle θ1 is between 20 degrees and 30 degrees (including the end value), and in this range, the elastic member 6 has a better elastic deformation effect, and the generated elastic force is more easily meet the requirements.

[0056] For example, in the closed state of the distal end effector 1, the value of the first included angle θ1 can be 20°-25°, for example, 22.5°.

[0057] Of course, in other embodiments, the size of the first included angle θ1 is not limited to the range listed above, and those skilled in the art can design it according to the specific design requirements under different circumstances.

[0058] For example, such as Figure 2 As shown, when the clamp assembly 1 is in the open state, there is a second included angle θ2 between the second bent portion 3b and the third bent portion 3c. The second included angle θ2 is also an acute angle, and its value is greater than that of the first included angle θ1. For example, the value of the second included angle θ2 is between 35 degrees and 45 degrees (inclusive), so that when the clamp assembly 1 is in the open state, the angle between the first clamp 11 and the second clamp 12 (the clamp opening angle) is within a reasonable range, for example, about 13°. If the clamp opening angle is too large, it is not conducive to the upper and lower edges of the cutting device driving the first clamp 11 and the second clamp 12 to close; if the clamp opening angle is too small, it is not conducive to clamping the target tissue (the target tissue may include animal or human tissue, blood vessels, etc., with a certain thickness). For example, a value of 43° for the second included angle θ2 can achieve a better effect in controlling the clamp opening angle.

[0059] Of course, in other embodiments, the size of the second included angle θ2 is not limited to the range listed above, and those skilled in the art can design it according to the specific design requirements under different circumstances.

[0060] For example, the radial width of the elastic element 3 is no greater than 1 / 3 of the radial width of the second clamp 12. Similarly, the radial width of the elastic element 3 is no greater than 1 / 3 of the radial width of the staple cartridge seat. The first clamp 11 and the second clamp 12 are opposite each other in the longitudinal direction D2, and the longitudinal direction D2 is perpendicular to the axial direction. The aforementioned radial direction is perpendicular to both the longitudinal direction D2 and the axial direction D1. If the radial width of the elastic element 3 is too small, the elastic element 3 cannot provide sufficient elasticity to allow the second clamp 12 to move away from the first clamp 11, thereby opening the matching actuator 100. If the radial width of the elastic element 3 is too large, the elastic element 3 cannot be positioned on the connector 6 within a limited space. For example, refer to... Figures 2-3 The first bend 3a is provided on the upper surface 6c of the connector 6 near the first clamp 11, and extends along the upper surface 6c of the connector 6 near the first clamp 11; for example, the first bend 3a extends from the second bend 3b toward the proximal end of the connector 6 (e.g., Figure 3 (As shown) extends, or, the first bend 3a extends toward the distal end of the connector 6 (as shown). Figure 11The first bending portion 3a and the second bending portion 3b are arranged in the groove 6b, and the third bending portion 3c and the fourth bending portion 3d rotate with the movement of the second jaw 12. Thus, the elastic force of the elastic member 3 is overcome by the extrusion and restriction of the groove wall of the groove 6b and the second jaw 12, so as to keep the elastic member 3 stable when the jaw assembly 1 is in the closed state, and keep the jaw assembly 1 stably in the closed state, so as to ensure smooth surgical operation in the closed state.

[0061] For example, referring to Figure 2 and Figure 7 , the connecting member 6 comprises a first abutting surface 6e, and the third bending portion 3c at least partially abuts on the first abutting surface 6e when the anastomosis performing assembly 100 is closed. The first abutting surface 6e extends from the distal end of the groove 6b (the bottom end of the second groove 6b-2) to the upper surface 6c of the distal end of the connecting member 6. When the anastomosis performing assembly 100 is in the closed state, the first included angle θ1 between the second bending portion 3b and the third bending portion 3c is an acute angle, and at least part of the third bending portion 3c abuts on the first abutting surface 6e when the anastomosis performing assembly 100 is in the closed state. Therefore, the included angle between the first abutting surface 6e and the second bending portion 3b embedded in the groove 6b is an acute angle, or in other words, the included angle between the first abutting surface 6e and the groove wall of the groove 6b for limiting the second bending portion 3b is an acute angle.

[0062] For example, referring to Figure 2 and Figure 7 , the connecting member 6 comprises a second abutting surface 6d, and the proximal end of the second jaw 12 abuts on the second abutting surface 6d. For example, the proximal end of the cartridge seat 121 abuts on the second abutting surface 6d. In the process of moving the second jaw 12 away from the first jaw 11 under the action of the elastic force applied by the elastic member 3 to make the jaw assembly 1 open, the jaw assembly 1 is opened by the abutment here and the combined action of the elastic force applied by the elastic member 3, so that the abutment can keep the stable movement of the second jaw 12 and enhance the structural stability of the jaw assembly 1 in the opening process.

[0063] For example, referring to Figure 2 and Figure 4 , the anastomosis device 10 further comprises a cutting device, and the jaw assembly 1 is closed to clamp the target tissue, and the cutting device is configured to be movable in the axial direction D1 to cut the target tissue clamped by the jaw assembly 1. For example, the cutting device is multiplexed as the closing mechanism 2, so in this embodiment, the cutting device is the above-mentioned closing mechanism 2. For example, referring to Figure 4The closing mechanism 2 comprises a main body 20 and a cutting knife 22 arranged on the main body 20, and further comprises a lower eave 23 and an upper eave 24, the lower eave 23 moves along the bottom surface of the second jaw body 12 which is away from the first jaw body 11, and the upper eave 24 moves along the bottom surface of the first jaw body 11 which is away from the second jaw body 12, so that the second jaw body 12 is pivoted to move close to the first jaw body 11 by the movement of the upper eave 23 and the lower eave 24, thereby closing the jaw assembly 1.

[0064] For example, referring to Figure 2 and Figure 7 The connecting piece 6 comprises a sliding groove 6f which longitudinally penetrates the connecting piece 6, and the closing mechanism 2 is configured to move along the sliding groove 6f to the anastomosis execution assembly 1. The sliding groove 6f provides a channel for the movement of the cutting device along the axis D1, for example, the cutting knife 22 at least partially moves in the sliding groove 6f. Thus, the connecting piece 6 realizes multiple functions, which simplifies the structure of the anastomosis device 10.

[0065] For example, referring to Figure 2 and Figure 7 The connecting piece 6 comprises a first side 601 and a second side 602 which are separated by the sliding groove 6f, the first side 601 has an upper surface 6c and a side surface 6a. The entire upper surface of the connecting piece 6 comprises the upper surface 6c of the first side 601, and the first connecting part 31 of the elastic piece 3 is arranged on the upper surface 6c of the connecting piece 6, which refers to the upper surface 6c of the first side 601. The side surface 6a of the first side 601 is away from the second side 602, and the extension direction of the side surface 6a of the first side 601 intersects the extension direction of the upper surface 6c of the first side 601, that is, the surface where the upper surface 6c and the side surface 6a are located intersects. The groove 6 comprises a first groove 6b-1 and a second groove 6b-2; the first groove 6b-1 is arranged on the upper surface 6c of the first side 601, and the first bending part 3a is fixed in the first groove 6b-1; the second groove 6b-2 is through the first groove 6b-1 and extends to the bottom surface of the connecting piece 6, and the second bending part 3b passes through the second groove 6b-2. In this way, a part of the elastic piece 3 is embedded in the connecting piece 6, and the arrangement of the elastic piece 3 does not occupy additional space.

[0066] Figure 9 is a partial schematic view of an anastomosis execution assembly comprising a connecting piece and a driving rod part according to an embodiment of the present application. For example, referring to Figure 9The matching execution assembly 100 includes a lever assembly 8, which includes a drive assembly. A connector 6 connects the clamp assembly 1 and the lever assembly 8, and the distal end of the drive assembly is connected to the cutting device. Thus, by utilizing the connector 6 between the clamp assembly 1 and the lever assembly 8, at least the functions of setting the elastic element 3 and providing a channel for the cutting device are achieved. This fully utilizes the connector 6 located at a specific position between the drive lever 8 and the clamp assembly 1. While achieving the aforementioned multiple functions, no additional components are needed, the overall size of the matching execution assembly 100 is not affected, and the structure and manufacturing difficulty of the matching device are simplified.

[0067] For example, refer to Figures 5-6 The staple cartridge holder 121 includes a bottom surface 121a facing the staple cartridge 122, a side wall 121b connected to and intersecting the bottom surface 121a, and a protrusion 121c. For example, the side wall of the staple cartridge holder 121 includes side walls 121b and 121d that are opposite each other and located on both sides of the installed staple cartridge 122, and the protrusion 121c is located near the side wall 121b on the side closer to the elastic member 3, so that the protrusion 121c can be connected to the second connecting portion 32 of the elastic member 3.

[0068] For example, in Figures 5-6 In the illustrated embodiment, the protrusion 121c is connected to the sidewall 121b of the staple cartridge holder 121 and protrudes from the sidewall towards the inner side of the sidewall 121b. The second connecting portion 32 of the elastic member 3 is located on the upper surface of the protrusion 121c. For example, the second connecting portion 32 of the elastic member 3 is fixed to the upper surface of the protrusion 121c, welded to the upper surface of the protrusion 121c, or overlaps the upper surface of the protrusion 121c. The upper surface of the protrusion 121c is away from the bottom surface of the staple cartridge holder 121. Thus, the second connecting portion 32 of the elastic member 3 can be connected to the staple cartridge assembly, and the staple cartridge and the elastic member 3 do not have direct contact, so the elastic member 3 will not affect the installation of the staple cartridge.

[0069] The aforementioned "inner side facing the sidewall 121b" refers to the space facing the staple cartridge seat 121 used to accommodate the staple cartridge 122.

[0070] For example, in Figures 5-6 In the embodiment shown, there is a longitudinal gap between the protrusion 121c and the bottom surface 121a of the staple cartridge seat 121, combined with Figure 10 The longitudinal spacing is used to accommodate the proximal end 122b of the staple cartridge 122 mounted on the staple cartridge seat 121, so as to allow the staple cartridge 122 to be installed at an angle under the constraint of the protrusion 121c.

[0071] Figure 10 This is a partial schematic diagram of an anastomosis device according to an embodiment of the present invention, including a protrusion 121c and a connector 6. (See reference) Figure 10When the staple cartridge 122 is installed in the horizontal direction parallel to the bottom surface 121a of the staple cartridge seat 121 from the distal end of the staple cartridge seat 121 to the proximal end of the staple cartridge seat 121, the height of the protrusion 121c in the direction perpendicular to the bottom surface 121a of the staple cartridge seat 121 is lower than the height of the upper surface of the staple cartridge 122 (i.e. the surface away from the staple cartridge seat 121), for example, the height of the upper surface of the proximal end 122b of the staple cartridge 122, to prevent the staple cartridge 122 from advancing in the horizontal direction, thereby preventing the staple cartridge 122 from being installed on the staple cartridge seat 121 in the horizontal direction. The staple cartridge 122 needs to be tilted at an angle, for example, the upper surface 122a of the staple cartridge 122 forms an angle with the horizontal direction, so that the proximal end 122b of the staple cartridge 122 is first inserted below the protrusion 121c, i.e. into the longitudinal D2 interval between the protrusion 121c and the bottom surface 121a of the staple cartridge seat 121, and then the other parts of the staple cartridge 122 are slowly pushed and pressed into the receiving space of the staple cartridge seat 121. In this way, during the installation of the staple cartridge 122 on the staple cartridge seat 121, the proximal end 122b of the staple cartridge 122 advances more gently, and there is no risk of the staple cartridge 122 being suddenly pushed in due to the lack of resistance when installing the staple cartridge in the horizontal direction, thereby causing the proximal end 122b of the staple cartridge 122 and other components such as the connecting member 6 and the elastic member 3 near the proximal end of the forceps assembly 1 to be damaged.

[0072] For example, referring to Figure 9 , the anastomosis device 10 is in an initial state before the staple cartridge 122 is installed. As Figure 10As shown, the staple cartridge 122 comprises a platform component 4. The platform component 4 is located near the proximal end 122b of the staple cartridge 122 to be installed; the platform component 4 comprises a pusher 40 and a platform 41, the platform 41 is located at the proximal end of the pusher 40, connected to the proximal end of the pusher 40 and protrudes from the pusher 40 along the extension direction of the staple cartridge 122; the pusher 40 can slide along the slide in the staple cartridge seat 121 and the staple cartridge 122 to push the anastomosis staple in the staple cartridge 122 out; the platform 41 is used to lift the corresponding component (not shown in the figure) of the empty staple cartridge safety device in the initial state in the longitudinal direction D2 to achieve other corresponding functions. When the staple cartridge 122 is installed in the initial state, the platform 41 of the platform component 4 is located at the proximal end of the slide of the staple cartridge 122, and after the staple cartridge 122 is installed to the staple cartridge seat 121, the platform 41 should be located below the corresponding component of the empty staple cartridge safety device, therefore, if the staple cartridge 122 is installed horizontally, the staple cartridge 122 is pushed into the staple cartridge seat 121 under very smooth conditions, due to the force of the operator, the platform 41 of the platform component 4 is resisted to the cutting device or to the connecting piece 6 (the corresponding component of the empty staple cartridge safety device), it is easy to make the platform component 4 displace along the axial direction D1, possibly moving towards the distal end of the anastomosis device 10, so that the platform 41 of the platform component 4 cannot provide the function of supporting and lifting the corresponding component of the empty staple cartridge safety device in the longitudinal direction D2 in the original position, so that the empty staple cartridge safety function it should play fails. Therefore, the protrusion 121c is arranged on the staple cartridge seat 121, and the operator can only install the staple cartridge 122 obliquely by the limitation of the protrusion 121c, which can avoid this problem.

[0073] For example, the protrusion 121c is in the form of a sheet extending along the bottom surface of the staple cartridge seat 121, which is beneficial to save the space occupied by the protrusion 121c. Of course, the protrusion 121c is not limited to this shape as shown in the embodiment, and the specific shape of the protrusion 121c is not limited in the embodiments of the present application. Figure 6

[0074] Figure 11 It is a partial structure schematic view of an anastomosis device comprising another elastic member provided by an embodiment of the present application. Figure 11 The difference between the embodiment shown in Figure 2 and the embodiment shown in Figure 2 is that the shape of the elastic member 3 is different. In Figure 11 the embodiment shown in the figure, the first bending part 3a of the elastic member 3 bends and extends towards the proximal end of the anastomosis device 10 relative to the second bending part 3b. Referring to Figure 11 , the first bending part 3a of the elastic member 3 bends and extends towards the distal end of the anastomosis device 10 relative to the second bending part 3b. Figure 2 The other technical features and corresponding technical effects of the embodiment shown in the figure are the same as those of the embodiment shown inThe embodiments shown are the same, and reference can be made to the previous description, which is not repeated here.

[0075] Figure 12 It is a partial structure schematic view of an anastomosis device including another protrusion provided by an embodiment of the utility model. Figure 11 The embodiments shown are the same as Figures 5-6 The difference between the embodiments shown is that the protrusions are arranged differently.

[0076] Reference Figure 12 For example, the protrusion 121c can be arranged on the bottom surface 121a of the cartridge seat 121 and connected with the bottom surface 121a of the cartridge seat 121; for example, in Figure 12 In the embodiments shown, the protrusion 121c is also connected with the side wall 121b to facilitate the stability of the structure and the convenience of manufacturing, of course, in other embodiments, the protrusion 121c can also be spaced apart from the side wall 121b. For example, after the cartridge 122 is installed to the cartridge seat 121, the protrusion 121c is located at the proximal side of the cartridge 122. For example, the protrusion 121c is located close to the side wall 121b of the cartridge seat 121 corresponding to the elastic member 3, for example, connected with the side wall 121b and protruding inwardly from the side wall 121b. The second connecting portion 32 of the elastic member 3 can also be connected with the upper surface of the protrusion 121c.

[0077] Figure 12 The other technical features shown and the corresponding technical effects are the same as Figures 5-6 The embodiments shown are the same as

[0078] The anastomosis device provided by the utility model, the elastic member is arranged on the connecting piece, the second clamp body can be pivoted away from the first clamp body under the elastic force of the elastic member and separated from the first clamp body, so that the clamp body assembly is opened to a proper angle, so that the tissue is clamped and closed at a proper angle or the target tissue is released after the anastomosis is completed; the first connecting portion of the original elastic member is reliably connected with the connecting piece, and the second connecting portion of the elastic member is connected with the second clamp body, so that the second clamp body is separated from the first clamp body to a proper angle, thereby improving the reliability and stability of the anastomosis device.

[0079] The following points need to be explained:

[0080] (1) The embodiment drawings of the utility model only involve the structures involved in the embodiment of the utility model, and other structures can refer to the usual design.

[0081] (2) In the case of no conflict, the embodiments of the utility model and the features in the embodiments can be combined to obtain new embodiments.

[0082] The above merely describes exemplary embodiments of the present application, and is not intended to limit the protection scope of the present application. The protection scope of the present application is defined by the appended claims.

Claims

1. An anastomosis performing assembly characterized by, The anastomosis performing assembly comprises: a jaw assembly comprising a first jaw and a second jaw, wherein the second jaw is configured to be pivotable relative to the first jaw to close or open the jaw assembly; a connecting member configured to be connected with the jaw assembly; and a resilient member comprising a first connecting portion and a second connecting portion, wherein the first connecting portion is connected with the connecting member, the second connecting portion is connected with the second jaw, and the second connecting portion is configured to apply a resilient force to the second jaw to pivot the second jaw relative to the first jaw to open the jaw assembly.

2. The anastomosis performance assembly according to claim 1, wherein, The anastomosis performing assembly further comprises a closing mechanism, wherein the closing mechanism is configured to: when the closing mechanism applies a driving force to the second jaw to drive the second jaw to pivot towards the first jaw, the resilient member is elastically deformed to apply the resilient force to the second jaw, and the driving force overcomes the resilient force to close the jaw assembly; when the closing mechanism stops applying the driving force to the second jaw, the second jaw is pivoted away from the first jaw under the action of the resilient force to open the jaw assembly.

3. The anastomosis performing assembly according to claim 2, wherein: the connecting member comprises a first recess, the first recess is shaped to match the shape of the first connecting portion of the resilient member, and the first connecting portion is arranged in the first recess; the second connecting portion of the resilient member is configured to pivot with the second jaw to cause the resilient member to be elastically deformed to apply the resilient force to the second jaw.

4. The anastomosis performance assembly of claim 3, wherein, the connecting member is arranged at a proximal end of the jaw assembly and connected with the second jaw, the first recess is arranged on an upper surface of the connecting member close to the first jaw; when the jaw assembly is open, the second connecting portion of the resilient member is located at a first position away from the first jaw; and when the jaw assembly is closed, the second connecting portion of the resilient member is located at a second position close to the first jaw.

5. The anastomosis performance assembly of claim 4 wherein, the resilient member further comprises at least two bending portions connected with each other, adjacent bending portions have an included angle and are rotationally connected, and two ends of the at least two bending portions are connected with the first connecting portion and the second connecting portion, respectively.

6. The anastomosis performance assembly of claim 5, wherein, the at least two bending portions comprise a second bending portion and a third bending portion connected with each other, the second bending portion and the third bending portion have the included angle, and the first connecting portion, the second bending portion, the third bending portion and the second connecting portion are connected in sequence; the connecting member further comprises a second recess and a first abutting surface, the second recess extends from a distal end of the first recess to a bottom surface of the connecting member, the first abutting surface extends from a bottom end of the second recess to an upper surface of the distal end of the connecting member, the second bending portion is arranged in the second recess, and the third bending portion abuts on the first abutting surface when the jaw assembly is closed.

7. The anastomosis performance assembly according to claim 6, wherein, when the jaw assembly is in the closed state, the included angle between the second bending portion and the third bending portion is a first included angle, and the first included angle is an acute angle. In the open state of the forceps body assembly, the included angle between the second bending portion and the third bending portion is a second included angle, the second included angle is an acute angle, and the value of the second included angle is greater than the value of the first included angle.

8. The anastomosis performance assembly according to claim 7, wherein, The value of the first included angle is between 20 degrees and 30 degrees. The value of the second included angle is between 35 degrees and 45 degrees.

9. The anastomosis performance assembly of claim 1, wherein, The width of the elastic member in the radial direction is not greater than 1 / 3 of the width of the second forceps body in the radial direction.

10. The anastomosis performance assembly of claim 6 wherein, The at least two bending portions further include a first bending portion connected with the second bending portion and a fourth bending portion connected with the third bending portion, the first bending portion includes a first connecting portion of the elastic member, and the fourth bending portion includes a second connecting portion of the elastic member. The first bending portion is arranged to extend along the connecting member close to the upper surface of the first forceps body and extend from the second bending portion towards the proximal end of the connecting member or the distal end of the connecting member.

11. The anastomosis performance assembly according to any of claims 1-10, wherein, The second forceps body is a cartridge assembly, and the first forceps body is a staple butt. The cartridge assembly includes a cartridge seat and a cartridge detachably mounted on the cartridge seat, and the cartridge is configured to accommodate an anastomosis staple. The second connecting portion of the elastic member is connected with the cartridge seat.

12. The anastomosis performing assembly according to claim 11, wherein The cartridge seat includes a bottom surface facing the cartridge, a side wall connected with and intersecting the bottom surface of the cartridge seat, and a protrusion, and an upper surface of the protrusion faces away from the bottom surface of the cartridge seat. The second connecting portion of the elastic member abuts on the upper surface of the protrusion.

13. The anastomosis performance assembly of claim 12, wherein, The protrusion is connected with the side wall and protrudes from the side wall towards the inner side of the side wall, and the protrusion has a longitudinal spacing from the bottom surface of the cartridge seat, and the longitudinal spacing is configured to accommodate a proximal end portion of the cartridge.

14. The anastomosis performance assembly of claim 12, wherein, The protrusion is connected with the bottom surface and the side wall of the cartridge seat respectively, and is configured to be located at the proximal side of the cartridge when the cartridge is mounted on the cartridge seat.

15. An anastomat characterized by comprising: The anastomosis device includes a handle portion, a sleeve assembly, and the anastomosis performing assembly according to any one of claims 1-14 connected in sequence.

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