Interventional therapy method at vessel bifurcation

A technology of interventional therapy and bifurcation, which is applied in medical science, surgery, etc., can solve problems such as hemodynamic optimization, and achieve the effects of improving late-stage patency, improving hemodynamic environment, and stabilizing blood flow

Inactive Publication Date: 2010-12-01
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing treatment methods of stent implantation at vascular bifurcations are only considered from the operability of stent implantation and the effective support of blood vessels, and have not been optimized from the perspective of hemodynamics

Method used

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  • Interventional therapy method at vessel bifurcation
  • Interventional therapy method at vessel bifurcation
  • Interventional therapy method at vessel bifurcation

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0015] The method for interventional treatment of bifurcated blood vessels disclosed by the present invention is: after the interventional treatment is performed at the bifurcation of the blood vessel according to the existing intervention method, a swirl flow introducer is implanted at the front end of the bifurcation of the blood vessel, close to the bifurcation.

[0016] The implementation process of the present invention will be described below by taking the stent implantation scheme in a bifurcated vessel as an example. figure 1 In the above, atherosclerotic plaque occurred in two parts of the blood vessel bifurcation: the outer wall surface of the entrance of the bifurcation blood vessel 3, and the inner wall surface of the main blood vessel 1 opposite to the bifurcation mouth. Take the following intervention steps:

[0017] 1. Remove ath...

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Abstract

The invention discloses an interventional therapy method at vessel bifurcation, which improves hemodynamic environment at the vessel bifurcation to improve the patency rate after the interventional therapy by using a rotational flow principle in the human blood circulatory system. The method is implemented by the following steps of: performing the interventional therapy at the vessel bifurcation by the conventional intervention method; and implanting a rotational flow guider at the front end of the vessel bifurcation close to the bifurcation part. The method is suitable for the interventional therapy at the vessel bifurcation after the vessel is blocked.

Description

technical field [0001] The patent of the present invention relates to an interventional treatment method, specifically, to an interventional treatment method at a blood vessel bifurcation. Background technique [0002] In terms of vascular interventional therapy, intimal hyperplasia and restenosis caused by thrombus are the main reasons for the low patency rate in the later stage of surgery. This problem is particularly prominent in the interventional treatment of coronary artery bifurcation vessels. Hemodynamic studies have found that flow separation and eddies often occur at the outer wall of bifurcated blood vessels, resulting in lower wall shear force and obvious oscillation characteristics at these parts, thus creating conditions for the adhesion and deposition of harmful substances in the blood , At the same time, it is easy to induce the generation of vascular intimal hyperplasia. The blood flow disorder caused by stent implantation will worsen the hemodynamic envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00
Inventor 孙安强邓小燕樊瑜波
Owner BEIHANG UNIV
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