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Device to percutaneously treatment of heart valve embolization

一种心脏瓣膜、栓塞的技术，应用在心脏瓣膜或异物的装置领域，能够解决高死亡率、侵入性等问题

Inactive Publication Date: 2016-05-25
CEDARS SINAI MEDICAL CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When a transcatheter prosthetic heart valve embolizes or misplaces in the wrong place, such as the left ventricle, the existing solution is usually open-heart surgery, which is invasive and has a high mortality rate

Method used

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  • Device to percutaneously treatment of heart valve embolization
  • Device to percutaneously treatment of heart valve embolization
  • Device to percutaneously treatment of heart valve embolization

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0090] Example 1: Surgical Procedure

[0091] After the anesthesia and sterile preparations have taken effect, a temporary transvenous pacing line is inserted through the femoral vein into the right ventricle. Percutaneous femoral vein access was performed, including the technique of performing a pre-closure using two orthogonal Proglides and inserting the wire through the same puncture site in a standard manner. A sheath for the TAVR procedure, having an internal dimension of 14-24 Fr, was inserted over the wire. Subjects were heparinized with an activated clotting time (ACT) in excess of 250 seconds. The aortic valve was retrogradely crossed and a stiff guidewire was inserted into the left ventricle in a standard manner. The transcatheter valve is advanced over the guide wire and attempts are made for proper placement and implantation with rapid right ventricular pacing but results in embolization of the heart valve in the left ventricle.

[0092] The stiff guide wire 101...

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Abstract

The present invention provides devices and methods for percutaneously retrieving an embolized or malpositioned heart valve or foreign bodies from a patient's body. Several of these devices may include a catheter system with expandable and retractable baskets attached to a catheter and guidewire system. The guidewire may be inserted through the lumen of the embolized or malpositioned heart valve, capturing the valve in the baskets, and deploying a mechanism to crush the valve within the baskets. Then the crushed baskets and valve may be retrieved either from the body or to a safer location such as but not limited to the descending aorta. This system is advantageous because it does not require open surgery to retrieve the valve or embolized material.

Description

technical field [0001] The present invention relates to an apparatus and method for retrieving an embolized or misplaced heart valve or foreign body from a patient's body. Background technique [0002] All publications cited herein are incorporated by reference in their entirety as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference. The following description includes information useful for understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art. [0003] When a transcatheter prosthetic heart valve is embolized or misplaced in the wrong place, such as the left ventricle, the existing solution is usually open-heart surgery, which is invasive and has a high mortality rate. Described herein is a device for percutaneous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/18
CPCA61B2017/00243A61F2/2427A61B2017/22035A61B2017/22038A61B17/50A61B2017/00477A61B2017/22097A61B17/221A61B17/00234
Inventor H·奥-吉莱哈维R·马卡尔
Owner CEDARS SINAI MEDICAL CENT
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