CN113143368A

CN113143368A - Vascular anastomosis device

Info

Publication number: CN113143368A
Application number: CN202110368070.2A
Authority: CN
Inventors: 刘文斌; 陈鑫; 薛利刚
Original assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Current assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-07-23

Abstract

A blood vessel anastomosis device comprises anastomosis rings with blood vessel through holes, wherein blood vessel hanging needles are arranged on the anastomosis rings, the anastomosis rings are used in pairs, each anastomosis ring comprises a body, a blood vessel pressing ring, an outward-turning blood vessel placing groove and a locking device, and the blood vessel pressing ring and the locking device are respectively arranged on the body; the vascular compression ring is arranged on the inner side of the anastomosis ring, a plurality of hanging needle accommodating grooves are distributed on the outer side of the vascular compression ring, the radial section of the vascular compression ring and the vascular compression surface are both in a toothed ring structure, a vascular hanging needle is arranged on the vascular compression surface corresponding to the protruding part of the toothed ring, and the inner concave part of the toothed ring corresponds to the hanging needle accommodating grooves; the locking device positions and fixes the anastomosis ring, and the blood vessel hanging needle is inserted into the hanging needle accommodating groove on the opposite side; the blood vessel placing groove is arranged at the periphery of the blood vessel pressing ring. Locking device carries out the connection and the counterpoint of anastomotic ring, need not to hang the accurate counterpoint of needle through the blood vessel, and locking effect in the locking device use is more firm, reduces and struggles away the risk, has improved the security of using.

Description

Vascular anastomosis device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a vascular anastomosis device.

Background

Organ transplantation in medicine is a complex operation of transplanting a healthy organ into a patient, with the aim of replacing the organ of the patient that is disabled by disease. With the continuous improvement of organ transplantation operation technology and treatment level in operation period, the survival rate and the life quality of organ transplantation patients are obviously improved, and the organ transplantation technology becomes a recognized effective means for treating various end-stage organ diseases.

In liver and kidney transplantation operations, the most difficult part for implanting a new visceral organ after the excision of the visceral organ and the highest technical requirement is used for repairing and reconstructing arteriovenous vessels on the viscera of a receptor, and the method has decisive significance for operation success rate and postoperative recovery. For example, the receptor end side of the superior vena cava and the inferior vena cava of the liver is difficult to be left long and easy to retract, the diameter of the blood vessel is different from 10 mm to 30mm, and the anastomosis of the existing instruments cannot be realized. At present, the universal method in the world still adopts manual continuous eversion suture, and due to the narrow space, the difficult operation, the time consumption and the labor consumption, the average blood vessel reconstruction needs 35 to 60 minutes, so that no liver stage is long in the operation, the influence on heart, lung and other organs is great, the quality control is influenced by the doctor technology, and postoperative bleeding, narrow blood vessel interface and other complications are easy to occur, so that an anastomosis instrument which is simple and convenient to operate and has low technical requirements on the doctor is required in the market at present.

Disclosure of Invention

The invention aims to provide a vascular anastomosis device.

The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows:

the invention relates to a vascular anastomosis device, which comprises two anastomosis rings which are provided with vascular through holes and used in a matching way, wherein a vascular hanging needle is arranged on each anastomosis ring, each anastomosis ring comprises a body, a vascular pressing ring, an everted vascular placing groove and a locking device, and the vascular pressing ring and the locking device are respectively arranged on the body; the blood vessel pressing ring is arranged on the inner side of the anastomosis ring, a blood vessel pressing surface is formed on the top surface of the blood vessel pressing ring, the inner side of the blood vessel pressing ring corresponds to the blood vessel through hole, a plurality of hanging needle accommodating grooves are distributed on the outer side of the blood vessel pressing ring, the radial section of the blood vessel pressing ring and the blood vessel pressing surface are both in a tooth ring structure, the convex part and the concave part of the tooth ring are mutually distributed at intervals, blood vessel hanging needles are arranged on the blood vessel pressing surface corresponding to the convex part of the tooth ring, and the concave part of the tooth ring corresponds to the hanging needle accommodating grooves; the locking device positions, connects and fixes a pair of anastomosis rings in a buckling connection mode, the blood vessel pressing surfaces of the two anastomosis rings are opposite, and the blood vessel hanging needles on any side are correspondingly inserted into the hanging needle accommodating grooves on the opposite side; the blood vessel placing groove is arranged at the periphery of the blood vessel pressing ring.

The invention can also adopt the following technical measures:

the two anastomotic ring structures are completely the same.

The locking device is a locking ring, the locking ring is arranged on the outer side of the anastomosis ring and comprises a locking ring wall, locking hooks and locking clamping grooves, an everting blood vessel placing groove is formed between the locking ring and the blood vessel crimping ring, a plurality of upwards extending locking hooks are distributed on the locking ring wall, a plurality of locking clamping grooves are distributed on the locking ring wall, and the locking hooks and the locking clamping grooves are distributed at intervals.

The locking hook is a structure provided with a hook-shaped bulge outwards.

The locking clamping groove is a fixing hole formed in the wall of the locking ring.

The vascular compression ring, the blood vessel evagination placing groove and the locking ring are coaxially arranged.

And a plurality of auxiliary tool clamping grooves are distributed on the outer side of the locking ring wall.

The anastomosis ring is made of polylactic acid, and the blood vessel hanging needle is made of absorbable metal.

The invention has the advantages and positive effects that:

in the vascular anastomosis device, the locking device is adopted for connecting and aligning the anastomosis rings, the hanging needle accommodating groove provides a larger accommodating space corresponding to the vascular hanging needle, the vascular hanging needle and the hanging needle accommodating groove are not required to be accurately aligned, the locking effect of the locking device in use is firmer, the risk of breaking loose is reduced, and the use safety is improved. The operation does not need to use a suture, so that the vascular reconstruction speed is accelerated; the structure is simple, the operation is convenient, the vascular anastomosis effect is good, and the operation is easy to master; in the practical application process, the time for anastomosis of blood vessels and complications can be reduced to the maximum extent.

Drawings

Figure 1 is a schematic view of the structure of an anastomotic ring of a vascular anastomotic device according to the invention;

FIG. 2 is a schematic structural view of a vascular anastomosis device in accordance with the present invention;

fig. 3 is a partial cross-sectional view of a locking device of the vascular anastomotic device according to the present invention.

Detailed Description

The technical solution of the present invention is explained in detail by the accompanying drawings and the specific embodiments.

As shown in fig. 1 to 3, the vascular anastomosis device of the present invention comprises anastomosis rings 1 with vascular through holes, wherein blood vessels at two ends respectively correspondingly pass through corresponding anastomosis rings when performing vascular anastomosis, a vascular hanging needle 2 is arranged on the anastomosis rings, the vascular hanging needle is hung on an everted vascular wall, the anastomosis rings are used in pairs, a blood vessel at one end corresponds to one anastomosis ring, each anastomosis ring comprises a body 3, a vascular compression ring 4 and a locking device, and the vascular compression ring and the locking device are respectively arranged on the body; the vascular compression ring 4 is arranged on the inner side of the anastomosis ring, a vascular compression surface 5 is formed on the top surface of the vascular compression ring, the inner side of the vascular compression ring corresponds to a vascular through hole 6, a plurality of hanging needle accommodating grooves 7 are distributed on the outer side of the vascular compression ring, the radial section of the vascular compression ring and the vascular compression surface are both in a toothed ring structure, the convex parts and the concave parts of the toothed ring are distributed at intervals, the vascular hanging needles 2 are arranged on the vascular compression surface corresponding to the convex parts of the toothed ring, and the concave parts of the toothed ring correspond to the hanging needle accommodating grooves; the locking device positions, connects and fixes a pair of anastomosis rings, the blood vessel pressing surfaces of the two anastomosis rings are opposite, and the blood vessel hanging needles on any side are correspondingly inserted into the hanging needle accommodating grooves on the opposite side; the blood vessel placing groove 10 is arranged at the periphery of the blood vessel pressing ring, and the blood vessel which is turned outwards after passing through the anastomosis ring is placed in the blood vessel placing groove.

The two anastomosis rings used in pairs are completely the same, the two anastomosis rings have the same structure, the number of production dies is reduced, and the use is convenient.

The locking device of the anastomosis ring is a locking ring 8, the locking ring is arranged on the outer side of the anastomosis ring and comprises a locking ring wall 8a, locking hooks 8b and locking clamping grooves 8c, an everted blood vessel placing groove 10 is formed between the locking ring and the blood vessel crimping ring, redundant blood vessels penetrating through the anastomosis ring and everted are placed in the everted blood vessel placing groove, a plurality of locking hooks extending upwards are distributed on the locking ring wall, a plurality of locking clamping grooves are distributed on the locking ring wall, the locking hooks and the locking clamping grooves are distributed at intervals, the locking hooks can adopt a structure with hook-shaped bulges outwards, the locking clamping grooves can be fixing holes formed in the locking ring wall, and the fixing holes are clamped by the bulge structures of the locking hooks. The locking hooks and the locking slots of the two anastomosis rings are correspondingly matched to position the matching positions of the two anastomosis rings, and the blood vessel hanging needle falls into the hanging needle accommodating groove, so that the blood vessel hanging needle is not required to be aligned with the hanging needle accommodating groove.

The blood vessel pressing ring, the blood vessel evagination placing groove and the locking ring are coaxially arranged, so that the operation is convenient during use.

A plurality of auxiliary tool clamping grooves 9 are distributed on the outer side of the wall of the locking ring, the anastomosis ring is held and held by auxiliary tools, so that follow-up operation is facilitated, the auxiliary tools are in the existing mature technology, and the auxiliary tool clamping grooves are matched with the auxiliary tools.

The application method comprises the following steps: the auxiliary tool is inserted into the auxiliary tool clamping groove and is clamped firmly; after the blood vessel to be anastomosed passes through the anastomosis ring, the blood vessel to be anastomosed is turned outwards and evenly hung at the position of the blood vessel hanging needle; clamping the folded redundant blood vessels into an eversion blood vessel placing groove by using micro-forceps, and leveling the blood vessels contacted with the blood vessel pressing surface; repeating the above steps on the opposite side of the blood vessel; the locking hooks of the anastomosis rings on the two sides are inserted into the locking slots, and the surgical forceps are used for correspondingly clamping the positions of the locking hooks so as to confirm that the locking hooks and the locking slots are completely closed.

The anastomosis ring is made of polylactic acid, the blood vessel hanging needle is made of absorbable metal materials such as magnesium alloy, the materials belong to mature technologies in the field, the anastomosis ring can be gradually absorbed by a human body in the using process, the anastomosis ring does not need to be operated again to be taken out, and therefore pain of a patient is relieved.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A blood vessel anastomosis device comprises two anastomosis rings which are provided with blood vessel through holes and are used in a matching way, wherein a blood vessel hanging needle is arranged on the two anastomosis rings, and the blood vessel anastomosis device is characterized in that: each anastomosis ring comprises a body, a vascular pressing ring, an everting vascular placing groove and a locking device, wherein the vascular pressing ring and the locking device are respectively arranged on the body; the vascular compression ring is arranged on the inner side of the anastomosis ring, a vascular compression surface is formed on the top surface of the vascular compression ring, the inner side of the vascular compression ring corresponds to a vascular through hole, a plurality of hanging needle accommodating grooves are distributed on the outer side of the vascular compression ring, the radial section of the vascular compression ring and the vascular compression surface are both in a toothed ring structure, the convex parts and the concave parts of the toothed ring are distributed at intervals, vascular hanging needles are arranged on the vascular compression surface corresponding to the convex parts of the toothed ring, and the concave parts of the toothed ring correspond to the hanging needle accommodating grooves; the locking device positions, connects and fixes a pair of anastomosis rings in a buckling connection mode, the blood vessel pressing surfaces of the two anastomosis rings are opposite, and the blood vessel hanging needles on any side are correspondingly inserted into the hanging needle accommodating grooves on the opposite side; the blood vessel placing groove is arranged at the periphery of the blood vessel pressing ring.

2. The vascular anastomosis device of claim 1, wherein: the two anastomosis rings have the same structure.

3. The vascular anastomosis device according to claim 1 or 2, wherein: the locking device is a locking ring, the locking ring is arranged on the outer side of the anastomosis ring and comprises a locking ring wall, locking hooks and locking clamping grooves, an everting blood vessel placing groove is formed between the locking ring and the blood vessel crimping ring, a plurality of upwards extending locking hooks are distributed on the locking ring wall, a plurality of locking clamping grooves are distributed on the locking ring wall, and the locking hooks and the locking clamping grooves are distributed at intervals.

4. The vascular anastomosis device of claim 3, wherein: the locking hook is a structure provided with a hook-shaped bulge outwards.

5. The vascular anastomosis device of claim 3, wherein: the locking clamping groove is a fixing hole formed in the wall of the locking ring.

6. The vascular anastomosis device of claim 3, wherein: the vascular compression ring, the blood vessel evagination placing groove and the locking ring are coaxially arranged.

7. The vascular anastomosis device of claim 6, wherein: and a plurality of auxiliary tool clamping grooves are distributed on the outer side of the locking ring wall.

8. The vascular anastomosis device of claim 1, wherein: the anastomosis ring is made of polylactic acid, and the blood vessel hanging needle is made of absorbable metal.