CN216754527U

CN216754527U - Clamp type blood vessel anastomosis device

Info

Publication number: CN216754527U
Application number: CN202122796674.5U
Authority: CN
Inventors: 刘文斌; 刘德鹏
Original assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Current assignee: Huarong Kechuang Biotechnology Tianjin Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-06-17
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a clamp type blood vessel anastomosis device which comprises two anastomosis rings, wherein the two anastomosis rings are respectively and movably connected on a base, the base is inserted into a connecting sleeve, and the two connecting sleeves are connected with the head end of a clamp holder; the clamp comprises a first clamp arm and a second clamp arm which are hinged through a hinge shaft; and a second connecting rod is arranged between the head end of the first clamp arm and the middle part of the second clamp arm, and a first connecting rod is arranged between the head end of the second clamp arm and the middle part of the first clamp arm. The anastomosis device can increase convenience and stability when the blood vessel is anastomosed, so that the blood vessel reconstruction speed is accelerated, the blood flow of the transplanted visceral organ is quickly recovered, the failure probability of blood vessel anastomosis is reduced, and complications are reduced.

Description

Clamp type blood vessel anastomosis device

Technical Field

The utility model relates to the technical field of medical auxiliary instruments, in particular to a clamp type vascular anastomosis device.

Background

Organ transplantation is a complex operation of transplanting a healthy organ into a patient, with the aim of replacing the patient's organ 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 is still manual continuous eversion suture, 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, the postoperative complications such as hemorrhage, vascular stenosis and the like are easy to occur, and the method is the most critical part in the organ transplantation operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a clamp type vascular anastomosis device.

The utility model is realized by the following technical scheme.

A clamp type blood vessel anastomosis device comprises two anastomosis rings which are respectively and movably connected on a base, the base is inserted into a connecting sleeve, and the two connecting sleeves are connected with the head end of a clamp holder; the clamp comprises a first clamp arm and a second clamp arm which are hinged through a hinge shaft; and a second connecting rod is arranged between the head end of the first clamp arm and the middle part of the second clamp arm, and a first connecting rod is arranged between the head end of the second clamp arm and the middle part of the first clamp arm.

Further, the anastomosis ring comprises an annular anastomosis ring base and an anastomosis needle; the anastomosis ring base comprises an annular base and an anastomosis needle mounting base positioned on the base, and a plurality of anastomosis needles are uniformly distributed on the anastomosis needle mounting base.

Further, the base comprises an insertion rod, an anastomotic ring bracket and a connecting seat; one end of the inserting rod is inserted into the connecting sleeve, the other end of the inserting rod is connected with one side of the connecting seat, and the other side of the connecting seat is connected with the bottom of the anastomotic ring bracket.

Furthermore, the center of the top of the anastomotic ring bracket forms a U-shaped anastomotic ring slot for inserting the anastomotic ring.

Furthermore, an elastic part is arranged in the connecting sleeve, and a positioning pin penetrates through the outer wall of the middle lower part of the connecting sleeve; the lower end of the insertion rod is provided with an assembly groove for a positioning pin to pass through along the extension direction of the insertion rod, a reversing groove is formed above the assembly groove, and the reversing groove is arranged along the circumferential direction of the insertion rod and is communicated with the assembly groove; and a plurality of positioning grooves communicated with the reversing grooves are arranged above the reversing grooves.

Further, internal threads are formed in the connecting sleeve; the lower end of the insert rod is provided with an external thread matched with the internal thread.

Furthermore, a positioning block is arranged on the upper surface of the connecting sleeve; the lower end of the connecting seat is provided with a positioning column.

Furthermore, an elastic part is arranged in the connecting sleeve.

The present application has the following advantageous effects.

The anastomosis device can increase convenience and stability when the blood vessel is anastomosed, so that the blood vessel reconstruction speed is accelerated, the blood flow of the transplanted visceral organ is quickly recovered, the failure probability of blood vessel anastomosis is reduced, and complications are reduced. The anastomosis device has the advantages of reasonable structural design, convenience in operation, good anastomosis effect, easiness in mastering and wide application prospect.

Drawings

Figure 1 illustrates the structure of an anastomosis ring in accordance with the present invention;

FIG. 2 is a schematic view of the base of the present invention;

figure 3 illustrates the installation of the anastomosis ring and base of the present invention;

FIG. 4 is a schematic representation of a blood vessel of the present invention prior to passing through an anastomotic ring;

FIG. 5 is a schematic representation of a blood vessel everted over an anastomosis ring to an anastomosis needle in accordance with the present invention;

FIG. 6 is a schematic view of the construction of the holder of the present invention;

FIG. 7 is a schematic view of the mounting of the base and holder of the present invention (before mounting);

FIG. 8 is a schematic view of the mounting of the base and holder of the present invention (after mounting);

FIG. 9 is a schematic view of the present invention clamp with the clamping arms closed;

FIG. 10 is a cross-sectional view of a connecting sleeve according to embodiment 1 of the present invention;

FIG. 11 is a schematic view showing the structure of the lower end of an insert rod according to example 1 of the present invention;

FIG. 12 is a schematic view showing the inclined arrangement of the anastomotic ring stent of the embodiment 1 of the utility model;

FIG. 13 is a cross-sectional view of a coupling sleeve according to embodiment 2 of the present invention;

FIG. 14 is a schematic view of the structure of a susceptor in embodiment 2 of the present invention;

FIG. 15 is a view showing a state in which the coupling sleeve and the base are retained according to embodiment 2 of the present invention.

Wherein, 1, anastomosis ring; 101. an anastomosis ring base; 1011. a base; 1012. an anastomosis needle mounting base; 102. an anastomosis needle; 2. a base; 201. an insertion rod; 202. an anastomotic ring scaffold; 203. a connecting seat; 204. an anastomotic ring slot; 205. assembling a groove; 206. a reversing slot; 207. positioning a groove; 208. an external thread; 209. a positioning column; 3. a connecting sleeve; 301. an elastic member; 302. positioning pins; 303. an internal thread; 304. positioning blocks; 4. a holder; 401. a first clamp arm; 402. a second jawarm; 403. hinging a shaft; 404. a first connecting rod; 405. a second connecting rod; 406. a first connecting joint; 407. a second connecting joint; 408. a third connecting section; 409. a fourth connecting joint; 5. a blood vessel.

Detailed Description

The utility model is further described below with reference to the figures and examples.

As shown in fig. 1-15, a clamp-type vascular anastomosis device comprises two anastomosis rings 1, wherein the two anastomosis rings 1 are respectively and movably connected to a base 2, the base 2 is inserted into a connecting sleeve 3, and the two connecting sleeves 3 are connected with the head end of a holder 4.

The anastomosis ring 1 comprises an annular anastomosis ring base 101 and an anastomosis needle 102; the anastomosis ring base 101 comprises an annular base 1011 and an anastomosis needle mounting base 1012 located on the base 1011, wherein a plurality of anastomosis needles 102 are uniformly distributed on the anastomosis needle mounting base 1012. The outer diameter of the present staple needle mount 1012 is smaller than the outer diameter of the base 1011.

The base 2 comprises an insertion rod 201, an anastomosis ring bracket 202 and a connecting seat 203; one end of the insertion rod 201 is inserted into the connecting sleeve 3, the other end is connected with one side of the connecting seat 203, and the other side of the connecting seat 203 is connected with the bottom of the anastomotic ring bracket 202.

The center of the top of the anastomotic ring holder 202 forms a "U" -shaped anastomotic ring inserting slot 204 into which the anastomotic ring 1 is inserted. The base 1011 of the anastomosis ring base 101 is inserted into the anastomosis ring socket 204, and the needle mounting base 1012 is in overlapping engagement with the walls of the anastomosis ring socket 204.

There are many ways to fix the base 2 and the connecting sleeve 3, and it should be noted that the

embodiments

1 and 2 are only preferred embodiments of the present application.

Example 1

An elastic part 301 is arranged in the connecting sleeve 3, preferably, the elastic part 301 is a spring; the outer wall of the middle lower part of the connecting sleeve 3 is provided with a positioning pin 302 in a penetrating way;

the lower end of the insertion rod 201 forms a mounting groove 205 along the extending direction of the insertion rod 201 for the positioning pin 302 to pass through, a reversing groove 206 is formed above the mounting groove 205, and the reversing groove 206 is arranged along the circumferential direction of the insertion rod 201 and is communicated with the mounting groove 205; a plurality of positioning grooves 207 are arranged above the reversing groove 206 and communicated with the reversing groove, and the positioning grooves 207 are uniformly arranged on the circumferential direction of the insertion rod 201.

The process of inserting the insertion rod 201 into the connecting sleeve 3 of the present embodiment is as follows: under the premise that the assembling groove 205 is aligned with the positioning pin 302, the inserting rod 201 is inserted into the connecting sleeve 3, when the positioning pin 302 reaches the reversing groove 206, the inserting rod 201 is rotated for a certain angle and then released, the positioning pin 302 enters one of the positioning grooves 207, and at this time, the inserting rod 201 and the connecting sleeve 3 can be fixed together.

In operation, when the operator assembles the base 2 to the connecting sleeve 3, the two anastomotic ring supports 202 may be arranged at a certain angle in this way, as shown in fig. 12, so that the blood vessel 5 may pass through the anastomotic ring 1 and then the needle may be turned outwards, and after the needle is finished, the two anastomotic ring supports 202 may be adjusted to be parallel to each other, so that the two anastomotic rings 1 may be anastomosed.

Example 2

An internal thread 303 is formed in the connecting sleeve 3; the lower end of the insert rod 201 forms an external thread 208 matching the internal thread 303. A positioning block 304 is arranged on the upper surface of the connecting sleeve 3; the lower end of the connecting base 203 is provided with a positioning post 209.

In this embodiment, the insertion rod 201 and the inner hole of the connection sleeve 3 have almost no fit clearance, which ensures the precision requirement of the base 2 and the connection sleeve 3 except the axial direction. Meanwhile, the positioning block 304 on the connecting sleeve 3 and the positioning post 209 at the lower end of the connecting seat 203 are arranged, so that the accuracy requirements of the base 2 and the connecting sleeve 3 in the axial direction are ensured.

Preferably, an elastic member is further arranged in the connecting sleeve 3, and the elastic member is located at the bottom of the inner hole of the connecting sleeve 3. Preferably, the resilient member is a spring. The action of the spring ensures that the connecting sleeve 3 can not easily rotate (the spring force increases the positive pressure between the threads) even if the force is not uniform in the alignment process of the pin hole of the anastomosis ring 1.

The process of inserting the insertion rod 201 into the connecting sleeve 3 of the present embodiment is as follows: after the insertion rod 201 is inserted into the connection sleeve 3 and rotated by a certain angle, the positioning post 209 on the base 2 meets the positioning block 304 on the connection sleeve 3 (fig. 15), and the rotation is stopped.

In operation, when the operator assembles the base 2 to the connecting sleeve 3, the two anastomotic ring supports 202 may be arranged at a certain angle in this way, as shown in the state of fig. 12, which facilitates the blood vessel 5 to pass through the anastomotic ring 1 and then to turn over the needle, and after the needle is finished, the two anastomotic ring supports 202 are adjusted to be parallel and the positioning column 209 abuts against the positioning block 304, which facilitates the anastomosis of the two anastomotic rings 1.

The gripper 4 of the present application comprises a first jawarm 401 and a second jawarm 402 hinged by means of a hinge shaft 403; a second connecting rod 405 is arranged between the head end of the first clamp arm 401 and the middle of the second clamp arm 402, and a first connecting rod 404 is arranged between the head end of the second clamp arm 402 and the middle of the first clamp arm 401. Two connecting sleeves 3 are fixed to the head ends of the first connecting rod 404 and the second connecting rod 405, respectively.

An operator holds the first tong arm 401 and the second tong arm 402 by hands to enable the first tong arm 401 and the second tong arm 402 to move oppositely, at the moment, an included angle formed between a connecting line of the first connecting joint 406 and the hinge shaft 403 and an axis passing through the hinge shaft 403 rotates by alpha, an included angle formed between a connecting line of the second connecting joint 407 and the hinge shaft 403 and an axis passing through the hinge shaft 403 rotates by alpha, and according to the principle that opposite vertex angles are equal, an included angle formed between a connecting line of the third connecting joint 408 and the hinge shaft 403 and an axis passing through the hinge shaft 403, and an included angle formed between a connecting line of the fourth connecting joint 409 and the hinge shaft 403 and an axis passing through the hinge shaft 403 all rotate by alpha; since the distance between the first connecting joint 406 and the hinge shaft 403, the distance between the second connecting joint 407 and the hinge shaft 403, the distance between the third connecting joint 408 and the hinge shaft 403, and the distance between the fourth connecting joint 409 and the hinge shaft 403 are all equal (L), the moving distance between the upper joint and the lower joint of the two connecting rods is the same as L × sin α, and thus, the two connecting rods are always kept parallel in the moving process.

The using method of the utility model comprises the following steps: firstly, as shown in fig. 3, an anastomosis ring 1 is inserted into an anastomosis ring holder 202 of a base 2, then, as shown in fig. 5, two segments of blood vessels 5 to be anastomosed are respectively passed through the two anastomosis rings 1 and then are suspended outside onto an anastomosis needle 102, and then, as shown in fig. 7, the base 2 is inserted into a connecting sleeve 3. The first and

second arms

401, 402 are then manually grasped to move the

arms

401, 402 towards each other, thereby bringing the bases 2 together to complete the anastomosis of the anastomosis ring 1 (as shown in figure 9), and finally the anastomosis ring 1 is removed from the base 2 by means of the surgical forceps.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a pincers type vascular anastomosis device, includes two anastomotic rings (1), its characterized in that: the two anastomosis rings (1) are respectively and movably connected on a base (2), the base (2) is inserted into a connecting sleeve (3), and the two connecting sleeves (3) are connected with the head end of a clamp holder (4); the clamp (4) comprises a first clamp arm (401) and a second clamp arm (402) which are hinged through a hinge shaft (403); a second connecting rod (405) is arranged between the head end of the first clamp arm (401) and the middle of the second clamp arm (402), and a first connecting rod (404) is arranged between the head end of the second clamp arm (402) and the middle of the first clamp arm (401).

2. The clamp-type vascular anastomosis device according to claim 1, wherein: the anastomosis ring (1) comprises an annular anastomosis ring base (101) and an anastomosis needle (102); the anastomosis ring base (101) comprises an annular base (1011) and an anastomosis needle mounting seat (1012) positioned on the base (1011), and a plurality of anastomosis needles (102) are uniformly distributed on the anastomosis needle mounting seat (1012).

3. The clamp-type vascular anastomosis device according to claim 1, wherein: the base (2) comprises an insertion rod (201), an anastomosis ring bracket (202) and a connecting seat (203); one end of the insertion rod (201) is inserted into the connecting sleeve (3), the other end of the insertion rod is connected with one side of the connecting seat (203), and the other side of the connecting seat (203) is connected with the bottom of the anastomotic ring bracket (202).

4. The clamp-type vascular anastomosis device according to claim 3, wherein: the center of the top of the anastomotic ring bracket (202) forms a U-shaped anastomotic ring slot (204) for the anastomotic ring (1) to insert.

5. The clamp-type vascular anastomosis device according to claim 3, wherein: an elastic piece (301) is arranged in the connecting sleeve (3), and a positioning pin (302) penetrates through the outer wall of the middle lower part of the connecting sleeve (3); the lower end of the insertion rod (201) is provided with an assembly groove (205) for a positioning pin (302) to pass through along the extension direction of the insertion rod (201), a reversing groove (206) is formed above the assembly groove (205), and the reversing groove (206) is arranged along the circumferential direction of the insertion rod (201) and is communicated with the assembly groove (205); and a plurality of positioning grooves (207) communicated with the reversing groove (206) are arranged above the reversing groove.

6. The clamp-type vascular anastomosis device according to claim 3, wherein: an internal thread (303) is formed in the connecting sleeve (3); the lower end of the insert rod (201) is provided with an external thread (208) matched with the internal thread (303).

7. The clamp-type vascular anastomosis device according to claim 6, wherein: a positioning block (304) is arranged on the upper surface of the connecting sleeve (3); the lower end of the connecting seat (203) is provided with a positioning column (209).

8. The clamp type vascular anastomosis device according to claim 6, wherein: an elastic part is also arranged in the connecting sleeve (3).