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Braided occlusion device having repeating expanded volume segments separated by articulation segments

A technology for medical devices and fabrics, which can be used in dilators, medical science, surgery, etc., and can solve problems such as long coil lengths

Inactive Publication Date: 2010-08-18
AGA MEDICAL CORP MS US
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the diameter of the coil must be small enough to fit through a small diameter conduit, the length of the coil to fill a given volume is rather long

Method used

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  • Braided occlusion device having repeating expanded volume segments separated by articulation segments
  • Braided occlusion device having repeating expanded volume segments separated by articulation segments
  • Braided occlusion device having repeating expanded volume segments separated by articulation segments

Examples

Experimental program
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Embodiment Construction

[0035] The present invention provides an improved percutaneous catheter-guided endovascular occlusion device for use in vasculature (eg, blood vessels, ducts, lumens, tissue openings, cavities, etc.) in a patient. In the fabrication of the medical device of the present invention, the metal fabric is formed from strands of multiple metal wires with a predetermined relative orientation between the strands.

[0036] The wire strands define two sets of generally parallel helical strands, one set of strands having a "pointer", ie a direction of rotation, opposite to the "pointer" of the other set of strands. This defines a generally tubular fabric, known in the fabric industry as a tubular braid. The previously mentioned Amplatz and Kotula patents describe medical devices and methods for their manufacture in detail, and thus only a general discussion is provided.

[0037] The pitch of the wire strands (i.e., the angle defined between the number of turns of the wire and the axis of...

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PUM

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Abstract

The present invention provides a flexible, low profile vascular occlusion device having large volume filling capability and high metal content for fast occlusion, of the type fabricated from braided tubular metal fabric having an expanded preset configuration and an elongated collapsed reduced diameter configuration for delivery through a catheter to a treatment site and shaped to create an occlusion of an abnormal opening in a body organ or vessel, the woven metal fabric having a memory property whereby the medical device tends to return to said expanded preset configuration when unconstrained. The device further includes a first shape formed from the braided tubular fabric consisting of a repeating pattern of expanded volume segments separated by small diameter articulation segments and a second overall device shape comprised of the first shape formed about itself in various shapes to occlude a vessel. In one embodiment a shaping wire contained coaxially within the tubular braid, provides or assists in the formation of the second overall device shape.

Description

technical field [0001] This invention relates generally to intravascular devices for the treatment of certain medical conditions, and more particularly to intravascular devices for selectively occluding vessels, ducts, lumens or cavities in the human circulatory system where blood flow is desired to be stopped. blocking device. Devices made in accordance with the present invention use high metal to volume ratios and are particularly suitable for teletherapy via small diameter flexible catheters or the like for rapid delivery to the vasculature of a patient at the site to be occluded. The device has a high delivered length to deployed length ratio and can reach more tortuous locations than conventional occlusion devices. Background technique [0002] A wide variety of intravascular devices are used in a variety of different medical procedures. Typically, certain intravascular devices, such as catheters and guidewires, only deliver fluids or other medical devices to specific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M29/00A61B17/00
CPCA61B17/12145A61B17/12154A61B17/12177A61B17/12163A61B17/12109A61B17/12122A61B17/12113A61B17/12022A61B17/12172A61B2017/00867A61B2017/00526
Inventor D·O·亚当斯
Owner AGA MEDICAL CORP MS US
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