3D filter for prevention of stroke

A framework and prosthesis technology, applied in the field of implantable endoprosthesis, can solve the problem of not allowing weaving to provide implantation of aortic arch stents and the like

Inactive Publication Date: 2018-01-02
FRID MIND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as discussed in U.S. Patent No. 5 061 275, such parameters (i) and (ii) do not allow weaving a stent that provides sufficient hoop force required for implantation in the aortic arch

Method used

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  • 3D filter for prevention of stroke
  • 3D filter for prevention of stroke
  • 3D filter for prevention of stroke

Examples

Experimental program
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Embodiment Construction

[0061] As used herein, the term "implantable" refers to the ability to position a medical device at a location within a body cavity. Implantable medical devices may be configured for transient (eg, seconds, minutes, hours) placement within a body cavity during a medical intervention, or configured to remain permanently within the body cavity.

[0062]The term "intraluminal" or "transluminal" prosthesis refers to a device adapted for surgical placement in a curved or straight body cavity, wherein the prosthesis is advanced within the lumen of the body cavity and passed through the canal from a remote location lumen to the target site within the body cavity. In vascular procedures, medical devices can typically be introduced "intravascularly" using a catheter over a wire guide under fluoroscopic guidance. Catheters and wire guides can be introduced through conventional access points in the vasculature.

[0063] The term "catheter" refers to a tube inserted into a blood vessel ...

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PUM

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Abstract

The present invention relates to implantable endoluminal prostheses and methods of using such devices in preventing clots migration to avoid ischemic strokes. The implantable endoluminal prosthesisissuitable for deployment from the aortic annulus to the aorta and comprises a self-expandable braided framework able to expand from a radially compressed state in a delivery configuration to a radiallyexpanded state, and a radially collapsible valve body comprising an impermeable material.The self-expandable braided framework isformed of braidedwires having a given diameter,and hasa proximal end configured to extend toward the heart and a distal end configured to extent toward away from the heart and extending along an axis.The braided framework comprises a main tubular body at the distal end of the self-expandable braided framework,a neck at the proximal end of the self-expandable braided framework, a transition portion extending between the proximal end of the main tubular body and the distal end of the neck. The main tubular body 3 and the neck comprisea lumen in a cylindrical form with a circular cross-section and a constant diameterrespectively, and the diameter of the main tubularbody is larger than the one of the neck. The main tubular body, theneck and thetransition portion consistof an integrated structure comprising plurality of layers of made of biocompatible material, being devoid of any impermeable cover layer, and forming a wall having a thickness. The valve body is placed within the lumen of the neck.

Description

technical field [0001] The present invention relates to implantable endoluminal prostheses and methods of using such devices to prevent clot migration to avoid ischemic stroke. More specifically, the present invention relates to devices further functioning as heart valves designed to be placed in the ascending aorta including the arch to prevent embolic material and blood clots from entering the coronary arteries (heart), superior aorta (brain Department) and visceral branches (kidney, liver, etc.). Background technique [0002] Stroke represents a sudden impairment of brain function caused by pathological changes occurring in upstream blood vessels. Sudden blockage of an artery supplying blood to the brain causes an ischemic stroke. Ischemia may also occur in any organ such as kidney, liver and heart. [0003] About 20% of ischemic strokes are caused by cardiogenic cerebral embolism, and 44% are caused by atherosclerotic plaque. Ischemic stroke is primarily caused by em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/01A61F2/24
CPCA61F2210/0076A61F2/2412A61F2/2418A61F2/90A61F2002/016A61F2230/0006A61F2230/0069A61F2250/0039A61F2/0105A61F2/01A61F2/06
Inventor 诺里蒂恩·弗里德
Owner FRID MIND TECH
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