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Percutaneous emboli protection sleeve

一种保护套管、护套的技术，应用在血管中的滤器、医药科学、心脏瓣膜等方向，能够解决难于控制损害、难以控制碎片大小等问题

Active Publication Date: 2015-02-04
PI R SQUARED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages include difficulty in controlling fragment size and potential for damage to nearby tissue

Method used

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  • Percutaneous emboli protection sleeve
  • Percutaneous emboli protection sleeve
  • Percutaneous emboli protection sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Reference is now made to Figure 1, which illustrates the anatomy of a calcified aorta. The aortic valve consists of three leaflets (or two leaflets in the case of the mitral valve), which can develop calcification over the years, which reduces leaflet mobility and leads to aortic stenosis. Above the valve leaflets are the sinuses with coronary ostia and the ascending aorta. The carotid ostium occurs on the upper portion of the aortic arch.

[0022] now refer to figure 2 , which illustrates a guide and protective sheath 10 constructed and operative in accordance with a non-limiting embodiment of the present invention. The cannula 10 is shown in a deployed position, preferably anchored to the aortic wall in the ascending aorta by one or more anchoring members 12 distal thereto. The retractable sheath 14 , shown already in the retracted position, can be used to open / expand the anchor member 12 .

[0023] Cannula 10 is shown in use with catheter 16 . Without limitation...

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PUM

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Abstract

A device includes a protection sleeve (10) and a retractable sheath (14) operatively connected to the protection sleeve (10), and a catheter (16) that passes through a main lumen (26) of the sleeve (10). The catheter (16) includes a heart valve treatment device arranged to pass into a lumen of the catheter (16).

Description

technical field [0001] The present invention relates generally to trapping embolic or other material, such as during cardiovascular procedures, and in particular, to percutaneous protective sheaths that can be used as guide sheaths or slide over catheters. Background technique [0002] During valve repair or replacement surgery, manipulation of a calcified valve can result in the movement of calcified material, tissue particles, and other debris, all referred to herein as embolic debris or simply embolus. Embolic debris can migrate through the circulatory system and cause vascular occlusion, blood clots, and cerebrovascular accident or stroke. Accordingly, there is a need to safely contain embolic debris during cardiovascular surgery. [0003] One method of removing embolic debris used in the past temporarily occludes the artery and then uses suction to draw the embolic debris out of the vasculature. The downside is that temporary blockade can threaten life or organ viabi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/01A61F2/24
CPCA61B2017/00783A61F2002/016A61B2017/22098A61F2/013A61B17/3207
Inventor E·戈兰
Owner PI R SQUARED