CN-122004967-A - Anastomosis execution assembly and anastomat

CN122004967ACN 122004967 ACN122004967 ACN 122004967ACN-122004967-A

Abstract

An anastomosis performing assembly and an anastomat, the anastomosis performing assembly comprises a forceps body assembly, a connecting piece and an elastic piece. The clamp body assembly comprises 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, a connecting piece is arranged to be connected with the clamp body assembly, an elastic piece comprises a first connecting portion and a second connecting portion, the first connecting portion is connected with the connecting piece, the second connecting portion is connected with the second clamp body, and the second connecting portion is configured to apply elastic force to the second clamp body to enable the second clamp body to pivot relative to the first clamp body to open the clamp body assembly. The anastomat provided by the disclosure can move away from the first forceps body and separate from the first forceps body under the action of the elastic force of the elastic piece, so that the distal end effector is opened to a proper angle to release target tissues sufficiently.

Inventors

LU SHAOLEI
ZHANG ZHIXING

Assignees

常州同创医疗器械科技有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (15)

1. An anastomosis performing assembly comprising: a jaw body assembly comprising a first jaw body and a second jaw body, wherein the second jaw body is configured to be pivotable relative to the first jaw body to close or open the jaw body assembly; a connector configured to connect with the clamp body assembly, and And the elastic piece comprises a first connecting part and a second connecting part, wherein the first connecting part is connected with the connecting part, the second connecting part is connected with the second clamp body, and the second connecting part is configured to apply 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.
2. The anastomosis performing assembly of claim 1, further comprising a closure mechanism, wherein the closure mechanism is configured to: when the closing mechanism applies a driving force to the second clamp body to drive the second clamp body to pivot close to the first clamp body, the elastic piece is elastically deformed to apply an elastic force to the second clamp body, and the driving force overcomes the elastic force to close the clamp body assembly; when the closing mechanism stops applying the driving force to the second clamp body, the second clamp body is pivoted away from the first clamp body under the action of the elastic force, so that the clamp body assembly is opened.
3. The anastomosis performing assembly of claim 2 wherein, The connecting piece comprises a first groove, the shape of the first groove is matched with that of the first connecting part of the elastic piece, and the first connecting part is arranged in the first groove; the second connection portion of the resilient member is configured to pivot with the second jaw body to resiliently deform the resilient member to apply the resilient force to the second jaw body.
4. The anastomosis performing assembly of claim 3, wherein the connector is disposed at a proximal end of the jaw body assembly and is coupled to the second jaw body, the first recess being disposed on an upper surface of the connector proximate the first jaw body; When the clamp body assembly is opened, the second connecting part of the elastic piece is located at a first position far away from the first clamp body, and when the clamp body assembly is closed, the second connecting part of the elastic piece is located at a second position close to the first clamp body.
5. The anastomosis performing assembly of claim 4, wherein the resilient member further comprises at least two connected bending portions, wherein an included angle is formed between adjacent bending portions and the bending portions are rotatably connected, and two ends of the at least two bending portions are respectively connected with the first connecting portion and the second connecting portion.
6. The anastomosis performing assembly of claim 5, wherein the at least two bending portions include a second bending portion and a third bending portion connected, the second bending portion and the third bending portion having the included angle therebetween, the first connecting portion, the second bending portion, the third bending portion and the second connecting portion being connected in sequence; The connecting piece still includes second recess and first butt face, the second recess is followed the distal end of first recess to the bottom surface direction of connecting piece extends, first butt face is followed the bottom of second recess is to the upper surface of the distal end of connecting piece extends, the second kink sets up in the second recess, works as the clamp body subassembly is closed, the third kink butt is in on the first butt face.
7. The anastomosis performing assembly of claim 6, wherein the included angle between the second and third bend portions is a first included angle, the first included angle being an acute angle, in the closed state of the jaw body assembly; And when the clamp body assembly is in an open state, the included angle between the second bending part and the third bending part is a second included angle, the second included angle is an acute angle, and the value of the second included angle is larger than that of the first included angle.
8. The anastomosis performing assembly of claim 7, wherein the first included angle has a value between 20 degrees and 30 degrees; The value of the second included angle is between 35 degrees and 45 degrees.
9. The anastomosis performing assembly of claim 1, wherein the width of the resilient member in the radial direction is no greater than 1/3 of the width of the second jaw body in the radial direction.
10. The anastomosis performing assembly of claim 6, The at least two bending parts further comprise a first bending part connected with the second bending part and a fourth bending part connected with the third bending part, wherein the first bending part comprises a first connecting part of the elastic piece, and the fourth bending part comprises a second connecting part of the elastic piece; The first bending part is arranged to extend along the upper surface of the connecting piece, which is close to the first clamp body, and extends from the second bending part towards the proximal end of the connecting piece or the distal end of the connecting piece.
11. The anastomosis performing assembly of any one of claims 1-10, wherein the second jaw body is a cartridge assembly and the first jaw body is a staple abutment; the cartridge assembly includes a cartridge seat and a cartridge removably mounted on the cartridge seat, the cartridge configured to receive staples; The second connecting part of the elastic piece is connected with the nail bin seat.
12. The anastomosis performing assembly of claim 11 wherein, The nail bin seat comprises a bottom surface facing the nail bin, side walls connected with and intersecting with the bottom surface of the nail bin seat and protrusions, and the upper surfaces of the protrusions face away from the bottom surface of the nail bin seat; the second connecting portion of the elastic piece is abutted against the upper surface of the protrusion.
13. The anastomosis performing assembly of claim 12, wherein the protrusion is connected to and projects from the side wall toward an inner side of the side wall, and wherein the protrusion has a longitudinal spacing from a bottom surface of the cartridge seat configured to receive a proximal portion of the cartridge.
14. The anastomosis performing assembly of claim 12, wherein the protrusion is connected to a bottom surface and a side wall of the cartridge seat, respectively, and is configured to be proximal to the cartridge when the cartridge is mounted to the cartridge seat.
15. A stapler comprising a handle portion, a sleeve assembly and an anastomosis performing assembly according to any one of claims 1-14, connected in sequence.

Description

Anastomosis execution assembly and anastomat Technical Field The present disclosure relates to the field of medical devices, and in particular, to an anastomosis performing assembly and an anastomat. Background In surgical treatment, various kinds of anastomat are widely used, for example, skin anastomat, digestive tract (esophagus, stomach intestine, etc.) anastomat, endoscopic 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. The prior endoscope anastomat is characterized in that a group of elastic pieces are directly arranged between a first clamp body and a second clamp body, for example, the second clamp body comprises a nail bin, the group of elastic pieces are arranged on the upper surface of the proximal end of the nail bin, the first clamp body and the second clamp body are opened by the elastic force of the elastic pieces, when the nail bin is detached from a nail bin seat, the elastic pieces can be detached along with a nail bin assembly, and when the nail bin is installed again, the elastic pieces are not easy to install to the correct position, so that the opening and closing between the first clamp body and the second clamp body are invalid. Disclosure of Invention At least one embodiment of the present disclosure provides an anastomosis performing assembly including a jaw body assembly, a connecting member, and an elastic member. The clamp body assembly comprises 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, a connecting piece is arranged to be connected with the clamp body assembly, an elastic piece comprises a first connecting portion and a second connecting portion, the first connecting portion is connected with the connecting piece, the second connecting portion is connected with the second clamp body, and the second connecting portion is configured to apply elastic force to the second clamp body to enable the second clamp body to pivot relative to the first clamp body to open the clamp body assembly. For example, an embodiment of the present disclosure provides for an anastomosis performing assembly further comprising a closing mechanism configured such that when the closing mechanism applies a driving force to the second jaw body to drive the second jaw body to pivot toward the first jaw body, the elastic member is elastically deformed to apply an elastic force to the second jaw body, the driving force overcomes the elastic force to close the jaw body assembly, and when the closing mechanism ceases to apply the driving force to the second jaw body, the second jaw body pivots away from the first jaw body under the action of the elastic force to open the jaw body assembly. For example, in the anastomosis performing assembly provided by an embodiment of the present disclosure, the connecting member includes a first groove, the shape of the first groove matches the shape of the first connecting portion of the elastic member, the first connecting portion is disposed in the first groove, and the second connecting portion of the elastic member is configured to pivot with the second forceps body so that the elastic member is elastically deformed to apply the elastic force to the second forceps body. For example, in the anastomosis performing assembly provided in an embodiment of the present disclosure, the connecting member is disposed at a proximal end of the jaw assembly and is connected to the second jaw, the first groove is disposed on an upper surface of the connecting member near the first jaw, when the jaw assembly is opened, the second connecting portion of the elastic member is located at a first position far from the first jaw, and when the jaw assembly is closed, the second connecting portion of the elastic member is located at a second position near the first jaw. For example, in the anastomosis execution assembly provided in an embodiment of the present disclosure, the elastic member further includes at least two connected bending portions, an included angle is formed between two adjacent bending portions, and the two ends of the at least two bending portions are connected to the first connecting portion and the second connecting portion respectively. For example, in the anastomosis executing assembly provided in an embodiment of the present disclosure, the at least two bending portions include a second bending portion and a third bending portion that are connected, the second bending portion and the third bending portion have the included angle therebetween, the firs