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
CN101808690AInactive Publication Date: 2010-08-18AGA MEDICAL CORP MS US
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AGA MEDICAL CORP MS US
Publication Date
2010-08-18
Estimated Expiration
Not applicable · inactive patent

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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