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Method of forming medical devices: intra-vascular occlusion devices

  • US 6,368,339 B1
  • Filed: 05/19/2000
  • Issued: 04/09/2002
  • Est. Priority Date: 07/08/1994
  • Status: Expired due to Term
First Claim
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1. A method of forming a medical device for deployment in a channel in a patient'"'"'s body, the device having a preset expanded configuration and a collapsed configuration enabling passage of the device through a catheter, comprising the steps of:

  • a) providing a fabric formed of a plurality of strands having a first relative orientation with respect to one another, the strands being formed of a material which can be heat treated to substantially set a desired shape;

    b) generally conforming the fabric to an internal surface of a molding element to substantially define the device'"'"'s expanded configuration;

    c) treating the fabric while conformed to the internal surface of the molding element to substantially set the strands in their expanded configuration; and

    d) removing the fabric from contact with the internal surface of the molding element, whereby the fabric defines a medical device which can be deformed into its collapsed configuration for passage through a catheter for deployment in a channel of a patient'"'"'s body, and which substantially resumes its preset expanded configuration in such channel.

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