Device for transcatheter insertion into the aortic root at the sinotubular junction

A catheter insertion, aortic technology, applied in the direction of the filter in the blood vessel, heart valve, etc., can solve the problems of iatrogenic stroke, paravalvular leakage, endangering the mid-term life of the patient, etc.

Active Publication Date: 2018-12-07
圣艾蒂安大学中心医院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generation of debris from the aortic valve during TAVI surgery may lead to postoperative coronary embolism, which leads to postoperative infarction, while cerebral embolism may cause iatrogenic stroke
[0005] In addition, it is also known that implantation of the aortic valve through a highly calcified native aortic valve via TAVI often results in paravalvular leaks, which can be life threatening for the patient

Method used

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  • Device for transcatheter insertion into the aortic root at the sinotubular junction
  • Device for transcatheter insertion into the aortic root at the sinotubular junction
  • Device for transcatheter insertion into the aortic root at the sinotubular junction

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Embodiment Construction

[0023] The device according to the invention comprises an assembly E serving as a valve embolic filter mounted so as to be able to slide inside the catheter 1 in a guided manner. As the following description will indicate, the catheter 1 is equipped with an assembly E that is introduced into the aortic root RA by means of a guide wire g, which is the current reality for this type of intervention.

[0024] The filter assembly E has a configuration capable of creating a safety cavity in the aortic root RA, which performs a valve function and a protective function against accidental embolism. This assembly E comprises a body 2 mounted to slide freely inside the catheter 1 . Of course, catheter 1 and body 2 are made of soft material.

[0025] The tubular body 2 is fixed at one end thereof to the generally conical shaped portion 2a and thus enables a safety cavity to be created. This portion 2a can be deployed outside the catheter 1 or retracted inside the catheter 1 as and when ...

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Abstract

A device for transcatheter insertion into the aortic root at the sinotubular junction by means of a guide wire and a catheter (1), the catheter (1) having means for protecting the surrounding tissue, characterized in that the device comprises An assembly (E) of an embolic filter mounted to slide in a guided manner into said catheter (1), said assembly (E) having a configuration capable of forming a safe lumen in the aortic root (RA) , the safety cavity performs valve function and protection function against accidental embolism, said structure includes a tubular body (2) fixed at one end thereof to be able to expand or retract outside the catheter (1) as required to a portion (2a) in the catheter (1) having a filtering configuration incorporating means capable of reproducing the function of a temporary valve corresponding to opening during systole and closing during diastole, to Any backflow of blood in the deployed position of the portion is prevented, thereby covering the native aortic valve with a seat secured in the aortic root at the sinus of Valsalva without obstructing blood flow.

Description

technical field [0001] The present invention relates to the field of interventional cardiology and of minimally invasive endovascular surgery, and more particularly, to an introducer device for intervention by transcatheter approach. [0002] The present invention has advantageous applications for any type of surgical intervention, such as replacement of a valve or implantation of a valve by a transcatheter approach, the acronym TAVI being better known to those skilled in the art, however these applications should not be considered as limiting sexual. Background technique [0003] Any intervention performed by a transcatheter approach requires great care by the operating surgeon because, for example, in cardiac interventions, the blood circulation is not diverted, but this is not the case, for example, in open heart surgery where extracorporeal circulation of blood is present. [0004] Generation of debris from the aortic valve during TAVI surgery may lead to postoperative ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/01
CPCA61F2/2412A61F2/013
Inventor B·佩恩M·沃拉E·帕斯奎诺
Owner 圣艾蒂安大学中心医院
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