CN-121971132-A - Absorbable vascular anastomat, auxiliary anastomosis device and system

CN121971132ACN 121971132 ACN121971132 ACN 121971132ACN-121971132-A

Abstract

The invention relates to the technical field of medical appliances, in particular to an absorbable vascular anastomat, an auxiliary anastomat and a system, wherein the anastomat comprises a first anastomotic part and a second anastomotic part, the first anastomotic part comprises a first anastomotic ring and a first anastomotic fixing piece, the first anastomotic fixing piece comprises a first annular needle seat and a plurality of first anastomotic needles fixed on the first annular needle seat, the second anastomotic part comprises a second anastomotic ring and a second anastomotic fixing piece, the second anastomotic fixing piece comprises a second annular needle seat and a plurality of second anastomotic needles fixed on the second annular needle seat, the first anastomotic ring and the second anastomotic ring are made of degradable high polymer materials, the first anastomotic fixing piece and the second anastomotic fixing piece are made of degradable metal materials, foreign body reaction or infection risk is avoided, the first anastomotic part and the second anastomotic part are in a tip-to-tip opposite manner, so that the vascular section on the first anastomotic part is in butt joint with the vascular section on the second anastomotic part, and the vascular section on the second anastomotic part is favorable for guaranteeing the long-term stability of the vascular anastomotic opening.

Inventors

WANG MINGZHENG
CHEN XUESHENG

Assignees

北京悦唯医疗科技有限责任公司

Dates

Publication Date: 20260505
Application Date: 20260122

Claims (10)

1. An absorbable vascular anastomat, comprising: The first anastomosis component comprises a first anastomosis ring and a first anastomosis fixing piece, the first anastomosis fixing piece comprises a first annular needle seat and a plurality of first anastomosis needles fixed on the first annular needle seat, the first anastomosis needles are arranged at intervals along the circumferential direction and have the same tip direction, the first annular needle seat is positioned on one side of the first anastomosis ring, and the first anastomosis needles penetrate through the first anastomosis ring and extend out of the other side of the first anastomosis ring; The second anastomosis component comprises a second anastomosis ring and a second anastomosis fixing piece, the second anastomosis fixing piece comprises a second annular needle seat and a plurality of second anastomosis needles fixed on the second annular needle seat, the second anastomosis needles are arranged at intervals along the circumferential direction and have the same tip direction, the second annular needle seat is positioned on one side of the second anastomosis ring, and the second anastomosis needles penetrate through the second anastomosis ring and extend out of the other side of the second anastomosis ring; The first anastomosis part and the second anastomosis part are in butt joint in a tip-to-tip opposite mode, and the first anastomosis needle is connected with the second anastomosis ring and the second anastomosis needle is connected with the first anastomosis ring so as to realize butt joint of a blood vessel section on the first anastomosis part and a blood vessel section on the second anastomosis part.
2. The absorbable vascular anastomat according to claim 1, wherein a plurality of first anastomotic holes for inserting the tips of the second anastomotic needles are formed on the first anastomotic ring, and a plurality of second anastomotic holes for inserting the tips of the first anastomotic needles are formed on the second anastomotic ring.
3. The absorbable vascular anastomat according to claim 2, wherein a first preset included angle is formed between the axis of the first anastomotic hole and the axis of the first anastomotic ring, and/or, A second preset included angle is formed between the axis of the second anastomosis hole and the axis of the second anastomosis ring.
4. The absorbable vascular anastomat according to claim 3, wherein the first preset included angle and/or the second preset included angle is 15-30 °.
5. The absorbable vascular anastomat according to claim 3, wherein the distance between the first anastomotic hole and the first anastomotic ring axis is gradually increased from one end far from the first annular needle seat to one end close to the first annular needle seat.
6. The absorbable vascular anastomat according to claim 1, wherein the tip of the first anastomotic needle and/or the second anastomotic needle is triangular pyramid-shaped, conical-shaped or barbed needle-shaped.
7. An auxiliary anastomosis device comprising a positioning structure and an absorbable vascular anastomat according to any one of claims 1 to 6, said positioning structure comprising: the first positioning ring is detachably sleeved and clamped on the periphery of the first anastomotic ring; the second positioning ring is detachably sleeved and clamped on the periphery of the second anastomotic ring; the guide structure is connected with the first positioning ring and the second positioning ring and is used for guiding the first positioning ring and the second positioning ring to move along the axial direction in opposite directions or in opposite directions so as to realize the axial butt joint of the first anastomosis component and the second anastomosis component.
8. The auxiliary anastomosis device of claim 7, wherein the guide structure comprises: The positioning rod is slidably arranged on the first positioning ring and the second positioning ring in a penetrating manner; The driving rod penetrates through the first positioning ring and the second positioning ring, and is in threaded connection with one of the first positioning ring and the second positioning ring and is in running fit with the other one.
9. The auxiliary anastomosis device of claim 7, wherein a circumferential edge of the first anastomosis ring and a circumferential edge of the second anastomosis ring are provided with locating notches respectively, and wherein the first locating ring and the second locating ring are provided with locating bosses that mate with the locating notches.
10. An ultrasonic flow-through vascular anastomosis system, comprising: An absorbable vascular anastomat according to any one of claims 1 to 6; The probe fixing device comprises a first fixing structure and a second fixing structure, wherein the first fixing structure and the second fixing structure are respectively arranged on the end faces of the first anastomotic ring and the second anastomotic ring, which are away from each other, the first fixing structure is provided with a first installation through hole, and the axis of the first installation through hole and the end face of the first anastomotic ring form a set included angle; The ultrasonic probe group comprises a first ultrasonic probe and a second ultrasonic probe, wherein the first ultrasonic probe is arranged in the first installation through hole, the second ultrasonic probe is arranged in the second installation through hole, and the first ultrasonic probe and the second ultrasonic probe mutually receive ultrasonic waves sent by the other side so as to form two independent ultrasonic wave propagation paths, and the two ultrasonic wave propagation paths are all through blood vessels to be anastomosed.

Description

Absorbable vascular anastomat, auxiliary anastomosis device and system Technical Field The invention relates to the technical field of medical instruments, in particular to an absorbable vascular anastomat, an auxiliary anastomosis device and an auxiliary anastomosis system. Background Vascular anastomosis is a critical step in surgical procedures to connect vessel segments and restore blood flow, the success or failure of which is directly related to post-operative survival of the transplanted tissue or organ. The current blood vessel anastomosis method commonly used in clinic mainly comprises a manual suturing method and a mechanical nail ring anastomosis method. The manual suturing method is used as a traditional technology, is mature in technology and high in adaptability, can be flexibly adjusted according to the specific conditions of blood vessels, is extremely high in operation skill requirement on a surgeon, is long in operation time, is easy to cause the problems of uneven suturing, damage to blood vessel intima and the like due to human factors, and further increases the risk of postoperative thrombosis. The mechanical nail ring anastomosis method realizes the rapid anastomosis and fixation of the broken ends of the blood vessels through the pre-designed anastomosis ring and the anastomosis nail, remarkably simplifies the operation flow, shortens the operation time, improves the standardization and reliability of anastomosis, and gradually becomes one of the main stream instruments of the blood vessel anastomosis. However, this method is prone to foreign body reactions and infections, affecting long-term vascular patency and tissue healing quality. Disclosure of Invention The invention provides an absorbable vascular anastomat, an auxiliary anastomat and an auxiliary anastomat system, which are used for solving the defects that the manual suturing operation is complex, the vascular intima is easy to damage, and the mechanical anastomosis is easy to cause foreign body reaction and infection in the prior art. The present invention provides an absorbable vascular anastomat comprising: The first anastomosis component comprises a first anastomosis ring and a first anastomosis fixing piece, the first anastomosis fixing piece comprises a first annular needle seat and a plurality of first anastomosis needles fixed on the first annular needle seat, the first anastomosis needles are arranged at intervals along the circumferential direction and have the same tip direction, the first annular needle seat is positioned on one side of the first anastomosis ring, and the first anastomosis needles penetrate through the first anastomosis ring and extend out of the other side of the first anastomosis ring; The second anastomosis component comprises a second anastomosis ring and a second anastomosis fixing piece, the second anastomosis fixing piece comprises a second annular needle seat and a plurality of second anastomosis needles fixed on the second annular needle seat, the second anastomosis needles are arranged at intervals along the circumferential direction and have the same tip direction, the second annular needle seat is positioned on one side of the second anastomosis ring, and the second anastomosis needles penetrate through the second anastomosis ring and extend out of the other side of the second anastomosis ring; The first anastomosis part and the second anastomosis part are in butt joint in a tip-to-tip opposite mode, and the first anastomosis needle is connected with the second anastomosis ring and the second anastomosis needle is connected with the first anastomosis ring so as to realize butt joint of a blood vessel section on the first anastomosis part and a blood vessel section on the second anastomosis part. According to the absorbable vascular anastomat provided by the invention, the first anastomotic ring is provided with a plurality of first anastomotic holes for inserting the tips of the second anastomotic needles, and the second anastomotic ring is provided with a plurality of second anastomotic holes for inserting the tips of the first anastomotic needles. According to the absorbable vascular anastomat provided by the invention, a first preset included angle is formed between the axis of the first anastomotic hole and the axis of the first anastomotic ring. According to the absorbable vascular anastomat provided by the invention, a second preset included angle is formed between the axis of the second anastomotic hole and the axis of the second anastomotic ring. According to the absorbable vascular anastomat provided by the invention, the first preset included angle and/or the second preset included angle are/is 15-30 degrees. According to the absorbable vascular anastomat provided by the invention, the distance between the first anastomotic hole and the axis of the first anastomotic ring gradually increases from one end far from the first annular needle seat to one end close to the first ann