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Blood vessel anastomat

A stapler and blood vessel technology, which is applied in the field of vascular staplers for coronary artery bypass, and can solve problems such as downstream stenosis

Inactive Publication Date: 2009-09-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies in the prior art, and propose a vascular stapler with swirling flow characteristics, so as to achieve rapid and effective anastomosis of blood vessels while improving the hemodynamic environment of the anastomosis site, and solve the problem of downstream recirculation after bypass surgery. Stenosis problems, reducing blood flow through the anastomosis site pressure loss

Method used

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0017] Such as Figure 5 As shown, the patent of the present invention consists of three parts: a bracket 4, a bush 1 and a sleeve 3, wherein the bush 1 has a lateral branch 2. It is characterized in that the axis of the lateral branch 2 of the bush 1 forms a spatial angle of 45° with the axis of the bush body. The distance between the two axes is greater than 0 and smaller than the cross-sectional radius of the bushing main body, that is, the branch part of the bushing is connected to the main part of the bushing eccentrically. The main part of the bushing 1 is a polytetrafluoroethylene layer with a thickness of 10 μm, which is attached to the outer surface of the bracket 4 and can be in a contracted state together with the bracket initially. The lateral branch 2 of the liner is a polytetrafluoroethylene artificial blood vessel with a length ...

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Abstract

The invention discloses a blood vessel anastomat, which aims at solving the problem that the downstream becomes narrower after bypass operation and reducing pressure loss of the blood stream flowing the anastomosis part. The blood vessel anastomat comprises a bracket, a sleeve and a bush; the bush is provided with a lateral branch; the bracket can expand radially and is provided with a hole at the crotch facing the bush; the axial line of the lateral branch of the bush and the axial line of the main body of the bush form a spatial angle of 45 degrees and the distance of the two axial lines is larger than 0 and smaller than the radius of the section of the main body of the bush. The blood vessel anastomat is applicable to cardiovascular bypass operation under the condition of off-pump and also can be used for blood vessel bypass operation of other parts in the body.

Description

technical field [0001] The invention relates to a blood vessel stapler, in particular to a blood vessel stapler for coronary artery bypass grafting. Background technique [0002] At present, the medical field has generally used autologous blood vessels or artificial blood vessels to perform arterial bypass bypass or reconstruction surgery to solve the problem of vascular stenosis or blockage caused by atherosclerosis or thrombus. Traditional bypass surgery uses manual suturing, and the operation is complicated and highly dependent on the skill level of the surgeon. At the same time, coronary artery bypass surgery usually requires extracorporeal circulation with the help of a heart-lung machine, and the operation is performed in a state where the heart stops beating, which has many limitations such as long operation time and high operation cost. With the development of minimally invasive treatment techniques and the improvement of thoracic monitoring system, off-pump bypass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/115A61L31/04A61F2/06A61F2/82A61L31/02
Inventor 孙安强邓小燕樊瑜波
Owner BEIHANG UNIV
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