CN113456144A

CN113456144A - Micro-blood vessel anastomat

Info

Publication number: CN113456144A
Application number: CN202110913381.2A
Authority: CN
Inventors: 徐斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-10-01

Abstract

The invention belongs to the technical field of medical instruments, and relates to a microvascular anastomat which comprises a hemostatic forceps, wherein the head parts of two forceps arms of the hemostatic forceps are respectively provided with a half ring, and when the hemostatic forceps are closed, the two half rings form a complete gapless anastomosis ring; three fixing needles are distributed on each semi-ring, the fixing needles are perpendicular to the cutting direction of the hemostatic forceps, and the fixing needles can be pulled out from two directions of the surface of the semi-ring; when the hemostatic forceps are closed, all the fixing needles are uniformly distributed on the same circle in a circumferential manner, and the connecting line of the middle fixing needle on the two semi-rings is vertical to the jaw when the hemostatic forceps are closed; suture spaces are respectively formed between two adjacent fixing needles. The product of the invention has reasonable and ingenious structure, simple structure, easy manufacture and low cost, can save the operation time, can clinically improve the success rate of replantation of amputated limbs and organ transplantation, does not enter the inner cavity of blood vessels when in use, does not remain in the body after use, and has important significance for the application and development of clinical microvascular anastomosis technology.

Description

Micro-blood vessel anastomat

Technical Field

The invention belongs to the technical field of medical instruments, and relates to a micro-vessel anastomat.

Background

Microsurgery is a new technology of modern surgery, and enters into microcosmic from macroscopic view, so that the operation is more precise and delicate, the tissue wound is reduced, and the operation quality is greatly improved. The microsurgical technique is the core of microsurgery, and the basic anastomosis method mainly comprises end-to-end anastomosis and end-to-side anastomosis, which are the most frequently used manual blood vessel anastomosis methods in clinic. Because anastomotic blood vessels are tiny and can be operated only after being amplified by optical equipment, anastomotic requirements are very high, and in addition, blood vessels are shrunken and slippery, and a suture needle is sharp and easy to miss, micro-anastomosis of micro-blood vessels is always a high-difficulty technology, corresponding instrument equipment is urgently needed to reduce operation difficulty, reduce human error, create stable operation conditions for surgeons, and improve operation speed and success rate.

Disclosure of Invention

Aiming at the problems, the invention provides the micro-vessel anastomat which can effectively reduce the operation difficulty of vessel anastomosis and improve the operation speed and success rate.

According to the technical scheme of the invention: a microvascular anastomat, characterized in that: the hemostatic forceps comprise hemostatic forceps, wherein the head parts of two forceps arms of the hemostatic forceps are respectively provided with a half ring, and when the hemostatic forceps are closed, the two half rings form a complete seamless anastomosis ring;

three fixing needles are distributed on each semi-ring, the fixing needles are perpendicular to the cutting direction of the hemostatic forceps, and the fixing needles can be pulled out from two directions of the surface of the semi-ring;

when the hemostatic forceps are closed, all the fixing needles are uniformly distributed on the same circle in a circumferential manner, and the connecting line of the middle fixing needle on the two semi-rings is vertical to the jaw when the hemostatic forceps are closed;

suture spaces are respectively formed between two adjacent fixing needles.

As a further improvement of the invention, the semi-ring is provided with a needle hole, and the fixed needle is movably arranged in the needle hole.

As a further improvement of the invention, a sewing space is formed between two adjacent needle holes on the half ring, and the sewing space is of an arc groove structure which is sunken towards the center of a circle.

As a further improvement of the invention, the hemostatic forceps are integrally connected with the anastomosis ring.

As a further improvement of the invention, the hemostatic forceps are detachably connected with the anastomosis ring.

The invention has the technical effects that: the product of the invention has reasonable and ingenious structure, simple structure, easy manufacture and low cost, can save the operation time, can clinically improve the success rate of replantation of amputated limbs and organ transplantation, does not enter the inner cavity of blood vessels when in use, does not remain in the body after use, and has important significance for the application and development of clinical microvascular anastomosis technology.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the product in a closed state.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In fig. 1 and 2, the hemostatic forceps 1, the anastomotic ring 2, the semi-ring 2-1, the fixing needle 3, the concentric circular hole 4, the suture space 5 and the like are included.

As shown in figures 1 and 2, the invention relates to a microvascular anastomat, which comprises a hemostatic forceps 1, wherein the head parts of two forceps arms of the hemostatic forceps 1 are respectively provided with a half ring 2-1, and when the hemostatic forceps 1 is closed, the two half rings 2-1 form a complete gapless anastomosis ring 2. Three fixing needles 3 are uniformly distributed on each semi-ring 2-1, the fixing needles 3 are perpendicular to the cutting direction of the hemostatic forceps 1, and the fixing needles 3 can be pulled out from two directions of the surface of the semi-ring 2-1. It can be understood that the half ring 2-1 is configured with a needle hole, and the fixed needle 3 is movably arranged in the needle hole to meet the clinical use requirement.

Furthermore, the concentric circular hole 4 in the anastomosis ring 2 is a place where the proximal end of the blood vessel to be anastomosed, which is clamped by the jaws of the hemostatic forceps 1 to stop bleeding and is fixed, turns outwards (the tunica intima of the blood vessel is outward) and is fixed on the fixing needle 3, and the diameter of the concentric circular hole is basically consistent with the diameter of the blood vessel and is slightly smaller than the diameter of the circle formed by the fixing needle 3.

The half ring 2-1 is provided with a sewing space 5 between two adjacent needle holes for realizing the threading of the sewing needle, and in specific practice, the sewing space 5 is an arc groove structure depressed towards the center of a circle so as to conveniently and reliably carry out the threading operation of the sewing needle.

In a specific application, the specification and the size of the fixing needle 3 can be set as required, that is, the length and the diameter of the fixing needle 3 can be set as required.

When the hemostatic forceps 1 is closed, the fixing needles 3 are uniformly distributed on the same circle in a circumferential manner, and the connecting line of the middle fixing needle on the two semi-rings 2-1 is vertical to the jaw of the hemostatic forceps 1 when the hemostatic forceps are closed.

On the basis of the structure, the first embodiment of the product of the invention is as follows: the hemostatic forceps 1 is connected with the anastomosis ring 2 integrally.

The second embodiment of the product of the invention is as follows: the hemostatic forceps 1 is detachably connected with the anastomosis ring 2.

The working process of the invention is as follows: when the end of the blood vessel is anastomosed, the anastomat is clamped and fixed at the near end of the blood vessel to be anastomosed, the fixing needle 3 points to an anastomotic opening, the anastomotic end of the blood vessel penetrates out of a concentric circular hole 4 in an anastomotic ring 2, a proper length is reserved, under the condition that the blood vessel is confirmed to be not twisted, a blood vessel site closest to a middle fixing needle 3 on one of the two semi-rings is selected as a first sticking and hanging point, the blood vessel is clamped by a forceps and stuck and hung on the fixing needle 3, and the fixing needle 3 needs to be stuck in from an outer blood vessel membrane and stuck out from the inner vessel membrane to achieve the eversion of the inner vessel membrane.

Then, the second needling point is the middle fixed needle 3 of the other half ring, and the needling method is the same as the previous method. After the two points are inserted and hung, the other 4 blood vessel sites corresponding to the adjacent fixing needles 3 are inserted and hung according to the diagonal insertion and hanging sequence, and the blood vessel margins are equal. Under the condition that the far end and the near end of the blood vessel to be anastomosed are anastomosed without distortion, the corresponding site of the anastomotic stoma of the far end blood vessel is pricked and hung on the fixing needle 3 in the middle of the two half rings 2-1 according to the method of the first and the second pricking and hanging points of the near end, and the fixing needle 3 is required to be pricked into the intima of the blood vessel and pricked out of the adventitia of the blood vessel. After the two points are inserted and hung, the other 4 blood vessel sites corresponding to the adjacent fixing needles 3 are inserted and hung according to the diagonal insertion and hanging sequence, and the side distance of the blood vessel is equal to the side distance of the near end. The state of the anastomotic stoma at this time is: the intima is opposite, the adventitia is not involved in the lumen, the margins are equal, and the blood vessel is not twisted. The needle 3 is fixed by sewing and knotting in a diagonal line sequence at the center of the sewing space 5, and the number of the needles is 6. And (3) removing the fixed needles 3 along the diagonal sequence, and suturing 1 needle in situ on the fixed needles 3 for 6 needles every time 1 fixed needle 3 is removed. Thus, 12 needles are evenly sutured in the whole anastomosis operation. The anastomat is loosened and removed, and the completion of 6 fixing needles is checked, namely the anastomosis of the blood vessels is completed.

When the end side of a blood vessel is anastomosed, an anastomat is clamped and fixed at the near end of the blood vessel to be anastomosed, fixing needles 3 point to an anastomotic opening, the anastomotic end of the blood vessel penetrates out of concentric circular holes 4 in an anastomotic ring 2, proper length is reserved, under the condition that the blood vessel is not twisted, the inner membrane is taken out in an everted state, the puncture hanging is completed according to the diameter diagonal line sequence, then forceps are used for overturning corresponding sites at the edges of anastomotic side holes, the fixing needles penetrate into the puncture hanging from the inner membrane to form first fixing anastomotic needle points opposite to the inner membrane, the fixing needles 3 are pulled out from the rear part of the anastomat after the suture fixing, then the second fixing anastomotic needle points opposite to the suture diameter line are fixed by the method, the fixing needles 3 are pulled out after the suture is completed, 6 needles are sewn according to the method, the anastomat is loosened and removed, and then one needle is sewn at the midpoint between every two needles for 6 needles to complete the end side anastomosis.

Claims

1. A microvascular anastomat, characterized in that: the hemostatic forceps comprise hemostatic forceps (1), wherein the head parts of two forceps arms of the hemostatic forceps (1) are respectively provided with a half ring (2-1), and when the hemostatic forceps (1) are closed, the two half rings (2-1) form a complete gapless anastomosis ring (2);

three fixing needles (3) are uniformly distributed on each semi-ring (2-1), the fixing needles (3) are perpendicular to the cutting direction of the hemostatic forceps (1), and the fixing needles (3) can be pulled out from two directions of the surface of the semi-ring (2-1);

when the hemostatic forceps (1) are closed, the fixing needles (3) are uniformly distributed on the same circle in a circumferential manner, and the connecting line of the middle fixing needle on the two semi-rings (2-1) is vertical to the jaw of the hemostatic forceps (1) when the hemostatic forceps are closed;

suture spaces (5) are respectively formed between two adjacent fixing needles (3).

2. The microvascular stapler of claim 1, wherein: the semi-ring (2-1) is provided with a needle hole, and the fixing needle (3) is movably arranged in the needle hole.

3. The microvascular stapler of claim 2, wherein: a sewing space (5) is formed between two adjacent needle holes on the half ring (2-1), and the sewing space (5) is of an arc groove structure sunken towards the circle center.

4. The microvascular stapler of claim 1, wherein: the hemostatic forceps (1) is integrally connected with the anastomosis ring (2).

5. The microvascular stapler of claim 1, wherein: the hemostatic forceps (1) is detachably connected with the anastomosis ring (2).