Micro blood vessel anastomosis device

Abstract

The utility model provides a tiny blood vessel anastomosis device which comprises two cannulas, the cannulas are formed by splicing a first cannulas and a second cannulas, the first cannulas and the second cannulas are the same in shape and structure, the first cannulas are arc-shaped plates in appearance, and semicircular rings are fixedly installed at the side ends of the first cannulas and the second cannulas. A magnetic attraction block is embedded in the semi-circular ring and matched with a magnetic attraction block on the other sleeve, a fixing shaft is rotationally installed on the outer wall of the first sleeve and the outer wall of the second sleeve through a pin shaft, and fixing teeth are arranged at the top end of the fixing shaft and used for fixing tiny blood vessels. The semicircular rings are fixedly mounted at the side ends of the sleeves, the magnetic attraction blocks are embedded in the semicircular rings, the two sleeves are accurately pulled together through the magnetic attraction blocks, so that tiny blood vessels are matched, the fixing shafts for fixing the tiny blood vessels are arranged outside the sleeves, the tiny blood vessels can be turned over, and suturing is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical surgical instruments, and in particular relates to a micro-vascular anastomosis device. Background Art

[0002] In addition to being connected through arteries-capillaries-veins, the blood vessels in the human body can also be directly connected to each other, between arteries, between veins, and even between arteries and veins, forming vascular anastomosis.

[0003] The stapler is the world's first stapler and has been used for gastrointestinal anastomosis for nearly a century. It was not until 1978 that the tubular stapler was widely used in gastrointestinal surgery. It is generally divided into disposable or reusable staplers, imported or domestic staplers. It is a medical device that replaces traditional manual suturing. Due to the development of modern technology and the improvement of manufacturing technology.

[0004] The anastomosis devices currently used in clinical practice are of reliable quality, easy to use, tight and of appropriate tightness. In particular, they have the advantages of fast suturing, easy operation, and few side effects and surgical complications. They have also made it possible to remove tumors that were previously inoperable. They are very popular and highly praised by clinical surgeons at home and abroad. Among them, vascular anastomosis is used more frequently in medicine.

[0005] In clinical operations or small animal experiments, the tiny blood vessels used in vascular anastomosis operations are extremely difficult to sew due to their small diameter, and the success rate is low. After suturing, vascular obstruction or vascular embolism is very likely to occur, leading to failure of the anastomosis. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a microvascular anastomosis device in view of the deficiencies of the above-mentioned prior art. The anastomosis device has a simple structure, is easy to use, has a good use effect, is reusable, is easy to install and recycle, and can be promoted and applied.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a microvascular anastomosis device, characterized in that it includes two sleeves, the sleeves are round tubes, the sleeves are made by splicing a first sleeve and a second sleeve, the first sleeve and the second sleeve have the same shape and structure, the first sleeve is an arc-shaped plate, the side ends of the first sleeve and the second sleeve are fixedly installed with semi-circular rings, the semi-circular rings are embedded with magnetic suction blocks, the magnetic suction blocks cooperate with the magnetic suction blocks on the other sleeve, and the outer walls of the first sleeve and the second sleeve are rotatably installed with fixed shafts through pins, and the top of the fixed shaft is provided with fixed teeth, and the fixed teeth are used to fix the microvascular.

[0008] Place the microvessel inside the cannula, turn the end of the microvessel outward at the semi-circular ring, and then fix the outward-turned part of the microvessel using the fixing teeth. Through the magnetic attraction of the magnetic suction blocks on the semi-circular ring, pull the two cannulas closer to each other and align them. The microvessels on the cannulas are anastomosed. Then, turn the fixing shaft to reset the outward-turned microvessels to a certain extent, and then suture them.

[0009] Preferably, one side of the first cannula is hinged to one side of the second cannula. A first connecting plate is fixedly installed on the other side of the first cannula, and a second connecting plate is fixedly installed on the other side of the second cannula. The first connecting plate cooperates with the second connecting plate.

[0010] The first cannula and the second cannula are fixedly connected through the first connecting plate and the second connecting plate, so as to place the microvessel inside the cannula.

[0011] Preferably, a plurality of first connecting columns and a plurality of first connecting grooves are provided at the bottom end of the first connecting plate, and a plurality of second connecting columns and a plurality of second connecting grooves are provided at the top end of the second connecting plate. The first connecting columns cooperate with the second connecting grooves, and the first connecting grooves cooperate with the second connecting columns. The first connecting plate and the second connecting plate are fixedly connected through the first connecting columns and the second connecting grooves, which is convenient for disassembly and assembly.

[0012] Preferably, the first connecting columns and the first connecting grooves are arranged at intervals, and the second connecting columns and the second connecting grooves are arranged at intervals, improving the connection stability between the first connecting plate and the second connecting plate.

[0013] The utility model has the following advantages compared with the prior art:

[0014] A semi-circular ring is fixedly installed at the side end of the cannula of the utility model, and magnetic suction blocks are embedded in the semi-circular ring. The two cannulas are accurately pulled together through the magnetic suction blocks, enabling the microvessels to be anastomosed. A fixing shaft for fixing the microvessel is arranged outside the cannula, and the microvessel can be turned over, facilitating suturing.

[0015] The following further describes the utility model in detail with reference to the drawings and embodiments. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the utility model.

[0017] Figure 2 is a schematic structural diagram of the semi-circular ring of the utility model.

[0018] Figure 3 is a schematic structural diagram of the first connecting plate and the second connecting plate of the utility model.

[0019] Description of the Reference Numerals:

[0020] 1—Casing; 2—First casing; 3—Second casing;

[0021] 4—Semicircular ring; 5—Magnetic suction block; 6—Fixed shaft;

[0022] 7—Fixed tooth; 8—First connecting plate; 9—Second connecting plate. Specific embodiments

[0023] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0025] As Figures 1 to 3 shown, the present utility model provides a microvascular anastomosis device, including two casings 1. The casing 1 is a circular tube. The casing 1 is made by splicing a first casing 2 and a second casing 3. The first casing 2 and the second casing 3 have the same shape and structure. The outer shape of the first casing 2 is an arc-shaped plate. Semi-circular rings 4 are fixedly installed on the side ends of the first casing 2 and the second casing 3. Magnetic suction blocks 5 are embedded in the semi-circular rings 4. The magnetic suction blocks 5 cooperate with the magnetic suction blocks 5 on another casing 1. Fixed shafts 6 are rotatably installed on the outer walls of the first casing 2 and the second casing 3 through pins. Fixed teeth 7 are provided at the top of the fixed shafts 6. The fixed teeth 7 are used to fix microvessels.

[0026] Place the microvessel inside the casing 1, turn the end of the microvessel outwards at the semi-circular ring 4, and then use the fixed teeth 7 to fix the turned-out part of the microvessel. Through the magnetic attraction of the magnetic suction blocks 5 on the semi-circular ring 4, the two casings 1 are pulled closer and aligned, and the microvessels on the casings 1 are anastomosed. Then, turn the fixed shaft 6 to make the turned-out microvessels return to a certain extent, and then suture.

[0027] In this embodiment, one side of the first sleeve 2 is hinged to one side of the second sleeve 3. A first connecting plate 8 is fixedly installed on the other side of the first sleeve 2, and a second connecting plate 9 is fixedly installed on the other side of the second sleeve 3. The first connecting plate 8 and the second connecting plate 9 cooperate with each other.

[0028] The first sleeve 2 and the second sleeve 3 are fixedly connected through the first connecting plate 8 and the second connecting plate 9, so as to place the micro-vessel into the sleeve 1.

[0029] In this embodiment, a plurality of first connecting columns and a plurality of first connecting grooves are provided at the bottom end of the first connecting plate 8, and a plurality of second connecting columns and a plurality of second connecting grooves are provided at the top end of the second connecting plate 9. The first connecting columns cooperate with the second connecting grooves, and the first connecting grooves cooperate with the second connecting columns. The first connecting plate 8 and the second connecting plate 9 are fixedly connected through the first connecting columns and the second connecting grooves, which is convenient for disassembly and assembly.

[0030] In this embodiment, the first connecting columns and the first connecting grooves are arranged at intervals, and the second connecting columns and the second connecting grooves are arranged at intervals, improving the connection stability between the first connecting plate 8 and the second connecting plate 9.

[0031] During use, place the micro-vessel in the second sleeve 3, and flip the first sleeve 2 so that the second sleeve 3 is spliced with the first sleeve 2.

[0032] The second connecting columns on the second connecting plate 9 are snapped into the first connecting grooves of the first connecting plate 8, and the first connecting columns on the first connecting plate 8 are snapped into the second connecting grooves of the second connecting plate 9. The first connecting plate 8 and the second connecting plate 9 are fixedly connected through the first connecting columns and the second connecting grooves.

[0033] Turn the end of the micro-vessel outwards at the semi-circular ring 4, and then fix the turned-out part of the micro-vessel by using the fixing teeth 7. Through the magnetic attraction of the magnetic attraction blocks 5 on the semi-circular ring 4, the two sleeves 1 are attracted to approach and align with each other. The micro-vessels on the two sleeves 1 are anastomosed. Then flip the fixing shaft 6 to reset the turned-out micro-vessel to a certain extent, and then suture.

[0034] After the suture is completed, open the first sleeve 2 and remove the sleeve 1.

[0035] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the present invention. Any simple modification, change and equivalent change made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A microvascular anastomosis device, characterized in that, It includes two sleeves (1), and the sleeve (1) is made by splicing a first sleeve (2) and a second sleeve (3). The first sleeve (2) and the second sleeve (3) have the same shape and structure. The outer shape of the first sleeve (2) is an arc-shaped plate. Semi-circular rings (4) are fixedly installed at the side ends of the first sleeve (2) and the second sleeve (3). Magnetic suction blocks (5) are embedded in the semi-circular rings (4), and the magnetic suction blocks (5) cooperate with the magnetic suction blocks (5) on the other sleeve (1). Fixed shafts (6) are rotatably installed on the outer walls of the first sleeve (2) and the second sleeve (3) through pins. Fixed teeth (7) are provided at the tops of the fixed shafts (6), and the fixed teeth (7) are used to fix microvessels; One side of the first sleeve (2) is hinged to one side of the second sleeve (3). A first connecting plate (8) is fixedly installed on the other side of the first sleeve (2), and a second connecting plate (9) is fixedly installed on the other side of the second sleeve (3). The first connecting plate (8) cooperates with the second connecting plate (9); A first connecting column and a first connecting groove are provided at the bottom end of the first connecting plate (8), and a second connecting column and a second connecting groove are provided at the top end of the second connecting plate (9). The first connecting column cooperates with the second connecting groove, and the first connecting groove cooperates with the second connecting column; The first connecting column and the first connecting groove are arranged at intervals, and the second connecting column and the second connecting groove are arranged at intervals.

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