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Implantable endoluminal prosthesis

An implantable, prosthetic technology, applied in the direction of prosthesis, human tubular structure device, medical science, etc., can solve the problems of inoperable aneurysm repair, branch occlusion, impermeability, etc.

Inactive Publication Date: 2018-07-17
因特雷萨维管股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its impermeability, this technique cannot be applied to aneurysm repair involving important branches (eg, coronary, superior aortic, renal and middle adrenal arteries, visceral arteries, and internal iliac arteries), which would otherwise Severe complications that can cause branch occlusion

Method used

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  • Implantable endoluminal prosthesis
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  • Implantable endoluminal prosthesis

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Embodiment Construction

[0025] As used herein, the term "implantable" refers to the ability of a medical device to be positioned at a location within a blood vessel of the body. Implantable medical devices can be configured to be placed temporarily (eg, seconds, minutes, hours) within a body vessel during a medical intervention, or to remain permanently within a body vessel.

[0026] The term "endoluminal" or "transluminal" prosthesis refers to a device adapted to be placed in a curved or straight body vessel by a procedure in which the prosthesis is placed within the lumen of the body vessel and passed through The lumen is advanced from a remote location to a target site within a body vessel. In vascular procedures, medical devices can often be introduced "intravascularly" under fluoroscopic guidance using a catheter over a guide wire. Catheters and guidewires can be introduced into the vascular system through conventional access sites.

[0027] The term "catheter" refers to a tube inserted into a...

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Abstract

The present invention refers to an implantable endoluminal prosthesis for use in the treatment of aneurysm involving branches having a multilayer configuration, comprising at least one self-expandablebraided framework extending along an axis able to expand from a radially compressed state in a delivery configuration to a radially expanded state; the self-expandable braided framework being formedwith at most 196 wires having a given wire diameter; this self-expandable braided framework devoid of any impermeable cover layer, comprising a plurality of layers of wires made of biocompatible material; and forming a wall of the endoluminal prosthesis; each layer forming a mesh; the meshes forming a lattice with a plurality of wires of said layers; the meshes being interlocked, the wires being integrated in the mesh of at least one of the adjacent layers; the self-expandable braided framework comprising a lumen in a cylindrical form with a circular cross-section and a constant diameter; characterized in that, in radially expanded state, a ratio of thickness (T1) of a wall of the implantable endoluminal prosthesis in radially expanded state to the diameter of wire (21) being greater than3.0; and the surface coverage ratio (SCR) of said braided framework is at least 30% and at most 50%.

Description

technical field [0001] The present invention relates to implantable endoluminal prostheses. More specifically, the present invention relates to endoluminal prostheses for the treatment of aneurysms involving branches. Background technique [0002] Endovascular repair is known as a relatively new minimally invasive technique for treating aortic aneurysms. It delivers an impermeable tube (graft) supported by a metal or plastic framework (stent) via a distant blood vessel. However, due to its impermeability, this technique cannot be applied to aneurysm repair involving important branches (eg, coronary, superior aortic, renal and middle adrenal arteries, visceral arteries, and internal iliac arteries), which would otherwise Serious complications can result in branch occlusion. Contents of the invention [0003] A first object of the present invention is to provide a device implantable by endovascular route for the treatment of aneurysms involving branches. [0004] Another...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90
CPCA61B17/12172A61F2/90A61B17/12113A61L31/022A61F2210/0076A61F2002/823A61F2210/0014A61F2002/068A61F2230/0069A61F2/06A61P9/00
Inventor 努尔丁·弗里德
Owner 因特雷萨维管股份公司