Artificial blood vessel flow regulating device and artificial blood vessel

A flow regulating device and artificial blood vessel technology, applied in the medical field, can solve problems such as the uncertainty of the degree of blood vessel clamping by the vascular clamp, the large proportion of space occupied by the vascular clamp, and the inappropriateness of the artificial blood vessel, so as to avoid the formation of internal dead space and improve the quality of blood vessels. The success rate of the operation and the effect of reducing the cutting injury

Active Publication Date: 2017-12-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still risks in this type of operation: 1. There is uncertainty in the degree of vascular clamp clamping, which requires clinicians to have rich experience
2. The vascular clamp is made of hard materials such as stainless steel, which will inevitably cause damage when clamping the artificial blood vessel; at the same time, due to the lateral clamping of the vascular clamp, a small dead space is formed in the lumen, especially at the two sides of the clamping side of the vascular clamp. It can be seen that the damage of artificial blood vessels and the existence of dead space increase the probability of thrombus formation and the risk of bleeding caused by potential damage to artificial blood vessels
3. Usually, the vascular clamp is a metal handle structure. After clamping the artificial pipeline, due to its own weight, there is a possibility of twisting the artificial pipeline, and it is also possible to accidentally touch the vascular clamp during other operations and affect the artificial pipeline; The space is small, and the vascular forceps occupy a large proportion of the space, which will hinder other operations
4. When closing the chest, the vascular clamp must be withdrawn
However, the artificial blood vessel is not suitable for the above-mentioned serious heart malformation treatment operation.

Method used

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  • Artificial blood vessel flow regulating device and artificial blood vessel
  • Artificial blood vessel flow regulating device and artificial blood vessel
  • Artificial blood vessel flow regulating device and artificial blood vessel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1 to Figure 3 As shown, the artificial blood vessel flow adjustment device includes a main frame 1 and two restraint belts 2 with different lengths.

[0028] The main frame 1 is in the shape of a rod as a whole. The main frame 1 includes a strip-shaped main support part 1a and a plurality of barbs 1b; The surface is concave arc-shaped; the barb 1b is connected with the other plate surface of the main supporting part 1a. The barbs 1b are arranged in multiple rows, the number of rows of barbs 1b is the same as the number of straps 2, and the outer spacing of barbs 1b increases from the first row to the last row along the barbs 1b from the bottom to the top; along the barbs 1b The first row of barbs 1b from the bottom to the top of the hook 1b is located in the middle of the main support part 1a, and the two barbs 1b in the last row of barbs 1b are respectively located at both ends of the main support part 1a; this structure can avoid binding straps 2 ove...

Embodiment 2

[0036] The structure and principle of this embodiment are basically the same as that of Embodiment 1, and the basic similarities will not be redundantly described, and only the differences will be described, and the differences are as follows: Figure 6 and Figure 7 As shown, the artificial blood vessel flow adjustment device includes three tie belts 2 of different lengths, namely the long tie belt 2a, the middle tie belt 2b and the short tie belt 2c.

[0037] The drawings in the description show that the number of barbs 1b is 6, and the barbs 1b are arranged in three rows, which are the first row, the second row and the third row along the direction of the barbs 1b from the bottom to the top. The number of barbs 1b1 in the first row is two, and the two barbs 1b1 are located in the middle of the main support part 1a; the number of barbs 1b3 in the third row is two, and the two barbs 1b3 are respectively located on the two sides of the main support part 1a. The number of barb...

Embodiment 3

[0041] The structure and principle of this embodiment are basically the same as that of Embodiment 1, and the basic similarities will not be redundantly described, and only the differences will be described, and the differences are as follows: Figure 8 As shown, the number of barbs 1b is 6, and the barbs 1b are arranged in two rows, which are the first row and the second row along the direction from the bottom to the top of the barbs 1b; the number of barbs 1b1 in the first row is two Two barbs 1b1 are located in the middle of the main support part 1a; the number of barbs 1b2 in the second row is four, two barbs 1b2 are respectively located at both ends of the main support part 1a, and two barbs 1b2 are located at the main support The middle part of part 1a; the outer distance between the two barbs 1b2 in the middle part of the second row is the same as the outer distance between the two barbs 1b1 in the first row.

[0042] The artificial blood vessel includes a tube body 4 a...

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PUM

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Abstract

The invention provides an artificial blood vessel flow adjustment device and an artificial blood vessel and belongs to the technical field of medical science. By means of the artificial blood vessel flow adjustment device and the artificial blood vessel, the problem that existing artificial blood vessels with adjustable pressure flow are not suitable for being applied to surgery for treating critical heart malformation is solved. The artificial blood vessel flow adjustment device comprises a rod-shaped main framework and multiple binding belts different in length. The two ends of each binding belt are both connected with the main framework in a bound manner. The length of each binding belt is decreased in sequence from outside to inside. One side face of the main framework is used for allowing the artificial blood vessel to lean thereon in an abutting-against manner, and the other side face of the main framework is provided with multiple barbs. The middle section of each binding belt can be hung on the corresponding barb, so that two binding rings the same in diameter are formed out of each binding belt. The artificial blood vessel flow adjustment device and the artificial blood vessel are applied to treatment of critical heart malformation; the artificial blood vessel flow adjustment device is operated flexibly according to clinical conditions; it is guaranteed that flow of the artificial blood vessel is suitable for the physical condition of a patient; and complications are eliminated in time, the ideal flow dividing purpose is achieve, and the achievement ratio of the surgery is remarkably increased.

Description

technical field [0001] The invention belongs to the field of medical technology, and relates to an artificial blood vessel, in particular to an artificial blood vessel flow regulating device. [0002] The invention belongs to the technical field of medicine and relates to an artificial blood vessel, in particular to an artificial blood vessel with a flow regulating device. Background technique [0003] At present, many surgical operations achieve the purpose of treatment by grafting artificial blood vessels to change the blood flow of the target organ. For example, in some severe heart malformations (severe tetralogy of Fallot, transposition of the great arteries, tricuspid valve atresia, pulmonary valve atresia or stenosis, etc.), blood flow through the lungs is reduced, resulting in hypoxic arterial blood and pulmonary vascular development Poor, or accompanied by left ventricular hypoplasia, and one operation cannot directly achieve the purpose of anatomical correction. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/06
CPCA61F2/06A61F2250/0013A61F2250/0058
Inventor 郏蓁倪一鸣张泽伟
Owner ZHEJIANG UNIV
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