CN-122004968-A - Anastomosis performing assembly and anastomosis device

CN122004968ACN 122004968 ACN122004968 ACN 122004968ACN-122004968-A

Abstract

An anastomosis performing assembly including axially opposed distal and proximal ends thereof, the anastomosis performing assembly including a jaw body assembly, a cutting assembly and a first blocking structure. The jaw body assembly is configured to be closed or open, the cutting assembly is configured to be movable in the axial direction, the axial direction is a first direction, the first blocking structure is configured to be height-adjustable in a second direction, the cutting assembly is configured to be movable in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in a raised state of the first blocking structure, and the first blocking structure prevents the cutting assembly from being movable in the axial direction from the proximal side of the first blocking structure to the distal side of the first blocking structure in a lowered state of the first blocking structure.

Inventors

LU SHAOLEI
ZHANG ZHIXING

Assignees

宁波海泰科迈医疗器械有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (20)

1. An anastomosis performing assembly including axially opposed distal and proximal ends along the anastomosis performing assembly, wherein the anastomosis performing assembly includes: A clamp body assembly configured to be closed or opened; A cutting assembly configured to be movable along the axial direction, and A first blocking structure configured to be height-adjustable in a second direction, the second direction being perpendicular to the axial direction, wherein, The cutting assembly is configured to be movable in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in the raised state of the first blocking structure; The first blocking structure prevents movement of the cutting assembly in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in a dropped state of the first blocking structure.
2. The anastomosis performing assembly of claim 1, the cutting assembly comprising an interconnected cutting device and second blocking structure, the anastomosis performing assembly configured to: The second blocking structure is movable in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in the raised state of the first blocking structure; The first blocking structure prevents the second blocking structure from moving in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in a dropped state of the first blocking structure.
3. The anastomosis performing assembly of claim 2, further comprising: a platform member including a stepped portion, the platform member being provided to be movable in the axial direction; and the anastomosis performing assembly is configured to: When the clamp assembly is closed, the step portion is in contact with the first blocking structure, so that the first blocking structure is lifted in the second direction; the step moves toward the distal end in the axial direction under the drive of the cutting assembly to separate from the first blocking structure such that the first blocking structure falls in the second direction.
4. The anastomosis performing assembly of claim 3, wherein the anastomosis performing assembly is configured to: In an initial state, a gap is arranged between the step part and the first blocking structure, the cutting assembly is positioned at the proximal side of the first blocking structure, and the first blocking structure prevents the cutting assembly from moving distally of the first blocking structure; When the jaw body assembly is closed, the first blocking structure is raised in the second direction such that a height of the first blocking structure in the second direction is higher than a height of the second blocking structure in the second direction to allow the second blocking structure to pass under the first blocking structure in the axial direction such that the cutting assembly moves from a proximal side of the first blocking structure to a distal side of the first blocking structure in the axial direction; Upon movement of the cutting assembly into contact with the platform member and continuing to move in the axial direction toward the distal end, the cutting assembly drives the platform member toward the distal end such that the step is separated from the first blocking structure.
5. The anastomosis performing assembly of claim 4, wherein the jaw body assembly includes a cartridge assembly and an anvil movably coupled to one another, the cartridge assembly having staples disposed therein; The deck member further includes a staple pushing portion, the step portion being connected to a proximal end of the staple pushing portion, the staple pushing portion being configured to move in the axial direction toward the distal end to push the staples out of the cartridge assembly.
6. The anastomosis performing assembly of claim 5, wherein the staple pushing portion includes a main body portion and first and second staple pushing portions on opposite sides of the main body portion, the first or second staple pushing portions extending proximally of the platform member in the axial direction to fixedly connect with the step portion as a single body.
7. The anastomosis performing assembly of claim 5, wherein the cartridge assembly includes a cartridge seat and a cartridge removably mounted on the cartridge seat, the platform member residing in the cartridge after the cutting assembly completes a cut, the cutting assembly being configured to move in the axial direction toward the proximal end; When the cutting assembly is moved toward the proximal end proximate to the first blocking structure until the second blocking structure contacts the first blocking structure such that the first blocking structure is raised in the second direction such that a height of the first blocking structure in the second direction is greater than a height of the second blocking structure in the second direction, the second blocking structure passes under the first blocking structure in the axial direction such that the cutting assembly is moved from a distal side of the first blocking structure to a proximal side of the first blocking structure in the axial direction.
8. The anastomosis performing assembly of any one of claims 1-7, wherein the anastomosis performing assembly further comprises: And an elastic member connected with the first blocking structure, elastically deformable along the second direction, and configured to provide a downward pressure to the first blocking structure in the second direction, and to cause the first blocking structure to drop in the second direction under the action of the pressure.
9. The anastomosis performing assembly of any one of claims 1-7, wherein the first blocking structure comprises: A main body including a first limiting member, and A protrusion connected with the main body and protruding from one end of the main body in a falling direction of the first blocking structure; The anastomosis execution assembly further comprises a first base block and a second limiting piece arranged on the first base block, wherein the first limiting piece is movably connected with the second limiting piece and is mutually limited, and in the process that the first blocking structure moves in the second direction, the first limiting piece is configured to move relative to the second limiting piece in the second direction.
10. The anastomosis performing assembly of claim 9, wherein one of the first and second stop members is a sliding aperture extending in the second direction and the other is a fixed shaft positioned in the sliding aperture to connect the first blocking structure to the first base block, the fixed shaft sliding in the second direction in the sliding aperture during movement of the first blocking structure in the second direction.
11. The anastomosis performing assembly of claim 9, wherein the first base block comprises: A first bottom surface adjacent to the platform member in the second direction; And a through hole penetrating through the first bottom surface of the first base block along the second direction, wherein the main body of the first blocking structure is at least partially positioned in the through hole, and the protrusion of the first blocking structure protrudes out of the first bottom surface through the exposure of the through hole.
12. The anastomosis performing assembly of claim 9, wherein the body further comprises a contact portion distal to the protrusion in the axial direction, the platform member being configured to abut the contact portion in the second direction when the jaw body assembly is closed such that the first blocking structure is raised in the second direction and configured to move toward the distal end in the axial direction to disengage from the contact portion upon actuation of the cutting assembly such that the first blocking structure falls in the second direction.
13. The anastomosis performing assembly of claim 12, wherein the second blocking structure includes a first beveled surface proximal thereto, the second blocking structure further including a second bottom surface distal to the first blocking structure in the second direction, an included angle between the first beveled surface and the second bottom surface being an acute angle; The protrusion includes a second inclined surface on a distal side thereof, and an included angle between the second inclined surface and a contact surface of the contact portion abutting against the platform part is an obtuse angle.
14. The anastomosis performing assembly of claim 13, wherein the projection includes a first blocking surface proximal thereto, the first blocking surface being a plane perpendicular to the axial direction; The second blocking structure further includes a second blocking surface distal thereto, the second blocking surface being a plane perpendicular to the axial direction.
15. The anastomosis performing assembly as claimed in claim 13, wherein the anastomosis performing assembly is configured such that, during cutting of the cutting assembly and movement in the axial direction toward the proximal end, the first and second inclined surfaces contact each other and, as the cutting assembly moves, the first and second inclined surfaces slide relative to each other such that the second blocking structure applies a force to the protrusion to raise the first blocking structure in the second direction.
16. The anastomosis performing assembly of claim 15 wherein, The first inclined surface is a first curved surface, the top surface of the second blocking structure, which is close to the first blocking structure in the second direction, is a second curved surface, the first curved surface is connected with the second curved surface and forms an integrated curved surface in smooth transition, and the integrated curved surface is a convex surface; the protrusion is further provided with a third bottom surface, and the third bottom surface is smoothly connected with the second inclined surface; the projection and the second blocking structure are configured such that the second bevel and the third bottom surface slide sequentially over the integral curved surface during movement of the cutting assembly in the axial direction toward the proximal end.
17. The anastomosis performing assembly of claim 9 wherein, The second blocking structure is proximal to the projection with a first spacing in the axial direction between the second blocking structure and the projection when the jaw assembly is closed and the cutting assembly is not moved.
18. The anastomosis performing assembly of claim 5, wherein the cartridge assembly includes a cartridge seat and a cartridge removably mounted thereto, the cartridge seat having a fourth bottom surface facing the cartridge; The cartridge assembly further includes a tilt mount coupled to the cartridge housing and having a second spacing from the fourth bottom surface in the second direction for receiving a proximal end of the cartridge, the tilt mount configured to prevent the cartridge from being mounted to the cartridge housing in a horizontal direction parallel to the fourth bottom surface.
19. The anastomosis performing assembly of claim 18, wherein the tilt mount is configured to: the angled mounting member is positioned proximally of the cartridge in the horizontal direction to inhibit mounting of the proximal end of the cartridge to the proximal end of the cartridge holder in the horizontal direction during mounting of the cartridge by pushing the cartridge in the horizontal direction from the distal end of the cartridge holder to the proximal end of the cartridge holder, thereby inhibiting mounting of the cartridge to the cartridge holder in the horizontal direction.
20. The anastomosis performing assembly of claim 19, wherein the cartridge seat further comprises at least one side wall connected to and intersecting the fourth bottom surface, the angled mounting member being connected to and protruding from the side wall toward an inner side of the side wall.

Description

Anastomosis performing assembly and anastomosis device Technical Field The present disclosure relates to the field of medical devices, and in particular to an anastomosis performing assembly and an anastomosis device. Background In surgical treatment, various kinds of anastomat are widely used, for example, skin anastomat, digestive tract (esophagus, stomach intestine, etc.) circular anastomat, etc. The anastomat is used in medicine to replace traditional manual suturing equipment, and has the advantages of fast and accurate suturing, simple operation, less bleeding amount, few side effects, surgical complications and the like due to the development of modern technology and the improvement of manufacturing technology, and the anastomat can be used for resecting focus, so that the anastomat is widely used at home and abroad. A stapler generally includes a handle portion, an axially extending shaft assembly, and a jaw assembly. The clamp body assembly comprises a nail propping seat and a nail bin assembly. The cartridge assembly may include a cartridge and a cartridge holder, with the cartridge typically being removably mounted to the cartridge holder, and with the cartridge being replaceable with an unfired cartridge in an existing stapler, thereby allowing for reuse of the surgical instrument. The removable cartridge is positioned clinically as a disposable consumable. After clinical use, if the staples in the staple cartridge are completely consumed and become in an empty staple cartridge state, but an operator, such as a doctor, cannot judge whether a certain staple cartridge assembly is in an empty staple cartridge state only through the appearance, if the stapler in the empty staple cartridge state is used again, only tissues can be separated and can not be fixed and anastomosed through exciting the staples, so that the tissues bleed for a long time in the operation process, and the life of a patient can be endangered in serious cases. Therefore, there is a need to design a structure that limits the use of a stapler that does not have a cartridge installed or that has a cartridge installed but is in an empty cartridge state, avoiding the use of a stapler in an empty cartridge state. Disclosure of Invention At least one embodiment of the present disclosure provides an anastomosis performing assembly including axially opposed distal and proximal ends along the anastomosis performing assembly, the anastomosis performing assembly including a jaw body assembly, a cutting assembly and a first blocking structure. The jaw body assembly is configured to be closed or open, the cutting assembly is configured to be movable in the axial direction, the first blocking structure is configured to be height adjustable in a second direction perpendicular to the axial direction, the cutting assembly is configured to be movable in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in a raised state of the first blocking structure, and the first blocking structure prevents the cutting assembly from being moved in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure in a lowered state of the first blocking structure. For example, at least one embodiment of the present disclosure provides an anastomosis performing assembly including a cutting device and a second blocking structure interconnected, the anastomosis performing assembly being configured such that the second blocking structure is movable in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure when the first blocking structure is in an elevated state, and such that the first blocking structure prevents the second blocking structure from moving in the axial direction from a proximal side of the first blocking structure to a distal side of the first blocking structure when the first blocking structure is in a lowered state. For example, at least one embodiment of the present disclosure provides an anastomosis performing assembly including a platform member including a stepped portion arranged to be movable in the axial direction, and configured to contact the first blocking structure when the jaw body assembly is closed such that the first blocking structure is raised in the second direction, and to move toward the distal end in the axial direction to be separated from the first blocking structure by being driven by the cutting assembly such that the first blocking structure falls in the second direction. For example, at least one embodiment of the present disclosure provides an anastomosis performing assembly configured such that in an initial state, a gap is provided between the step and the first blocking structure, the cutting assembly is proximal to the first blocking structure, and the first blocking structure prevents distal movement of the cutting assembly