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Apparatuses for flow restoration and implanting members in the human body

A component and structure technology, applied in the field of equipment used to restore blood flow and implant components into the human body, can solve problems such as non-compliance, inability to function, thrombus cell death, etc.

Active Publication Date: 2013-06-12
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these drugs are often ineffective in reopening the vessel, may not be suitable for some patients, and may take a long time to work, which can lead to cell death distal to the clot
Often, these drugs are available in a short therapeutic window and patients who present later will not be eligible for drug therapy
In addition, these drugs can increase the risk of bleeding accidents in patients

Method used

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  • Apparatuses for flow restoration and implanting members in the human body
  • Apparatuses for flow restoration and implanting members in the human body
  • Apparatuses for flow restoration and implanting members in the human body

Examples

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Embodiment Construction

[0035] Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the embodiments described herein, the methods, devices and materials described herein are preferred.

[0036] device

[0037] refer to figure 1 -3. The device 10 for restoring blood flow and / or serving as an implantable member can include a guide wire 12 , a connecting mechanism 14 and a self-expanding member 16 .

[0038] Self-expanding member 16 can comprise a mesh structure. The mesh structure can be formed, for example, by laser cutting a pre-formed tube (eg, by etching), by interconnecting a plurality of filaments via laser welding, or by other suitable methods. In a preferred arrangement, the self-expanding member 16 is first laser cut from the tube, forming longitudinal slits (i.e., cuts) ...

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PUM

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Abstract

A medical device for blood flow restoration and / or for use as an implantable member in a human vessel includes a self- expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and Iieights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and / or thrombus when deployed and expanded.

Description

technical field [0001] The present invention relates to a method and a device for restoring at least partial blood flow in a blocked vessel, in particular a blocked cerebral artery, and to the use of such a device for thrombus removal and / or thrombolysis. The present application also relates to the use of the device as an implantable member in the human body. Background technique [0002] A blood clot that forms in a blood vessel (ie, a thrombus) or travels downstream (ie, an embolus) can cause the blood vessel to become blocked. The blockage interrupts blood flow, which prevents the delivery of oxygen and nutrients to their intended locations. The tissue on the far side of the clot that is starved of oxygen and nutrients can no longer function properly. For every minute of delay in processing, additional cell death in critical tissues will occur. [0003] Current techniques for restoring blood flow, such as treating a brain artery blocked by a blood clot, often take hour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221A61F2/91A61F2/958A61F2/86
CPCA61B17/221A61B2017/22034A61B2017/2215A61F2/856A61F2/86A61F2/95A61F2/962A61F2002/9505A61F2002/9534A61F2210/0076A61F2/88A61F2/90A61F2/92A61M25/09A61F2/844
Inventor S·什里瓦斯塔瓦A·坎姆
Owner TYCO HEALTHCARE GRP LP