Biforked stent with membrane

A vascular stent and membrane technology, which is applied in the field of medical devices to achieve the effect of improving safety and strengthening the inner wall of blood vessels

Inactive Publication Date: 2011-10-19
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of existing vascular stents with membranes that it is difficult to seal the hemangioma at the bifurcation of the blood vessel, and to provide a novel device for intravascular intervention to block the hemangioma (hemangioma at the bifurcation of the blood vessel)

Method used

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings for illustrating the steps.

[0017] As in the accompanying drawings of the instructions for use figure 1 , figure 2 , image 3 As shown, a bifurcated vascular stent graft, the vascular stent graft consists of a stent trunk and two stent branches, and the stent trunk communicates with the two stent branches respectively; Y"-shaped structure, its front end is bifurcated.

[0018] Two guide wires are arranged in the vascular stent with membrane, and the two guide wires are inserted into the main body of the stent at the same time, and then respectively enter the two stent branches. The membrane-grained vascular stent has axial flexibility and is made of an artificial membrane combined with a material compatible with human tissue.

[0019] Under the guidance of double guide wires, the "Y"-shaped intravascular stent is slowly opened by the traction of the guide...

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Abstract

The invention discloses a biforked stent with a membrane, which consists of a stent backbone and two stent branches. The stent backbone is respectively communicated with the two stent branches; the whole stent with the membrane has a 'Y'-shaped structure; and the front end of the stent with the membrane is biforked. Compared with the prior art, the biforked stent with the membrane has the advantages that the stent and a vessel are stably embedded under the situation of not obviously influencing the running of blood stream, thereby effectively sealing the inner port of a hemangioma; meanwhile, as the stent is combined with the vessel on three directions, the stent is hard to fall off, thus greatly improving the safety; and the stent completely protects the part of the biforked position of the vessel directly impacted by the blood stream, thereby effectively reinforcing the inner wall of the vessel.

Description

Technical field: [0001] The invention belongs to the field of medical devices, and relates to a membrane-coated vessel bifurcation stent (Y-shaped stent) device, in particular to an intravascular interventional device for blocking hemangiomas at vessel bifurcations. Background technique: [0002] At present, in the interventional treatment of hemangioma, the technology of hemangioma occlusion through the introduction of vascular stents has become more and more mature. However, for hemangiomas at vascular bifurcations, it is very difficult to achieve interventional occlusion or tamponade without affecting blood flow. The usual method is to clip the hemangioma with a blood vessel clip under direct vision of the operation, or use a silver wire to intervene in the blood vessel to fill the hemangioma. Due to the greater impact of blood flow on the bifurcation of blood vessels, the blood vessel wall is prone to damage, and the incidence of hemangioma is high, and it is easy to re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61B17/12
Inventor 刘文博费舟郭庆东陈涛张磊
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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