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Balloons for medical devices and fabrication thereof

  • US 5,108,415 A
  • Filed: 12/19/1989
  • Issued: 04/28/1992
  • Est. Priority Date: 10/04/1988
  • Status: Expired due to Term
First Claim
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1. A balloon for a medical device, the balloon comprising:

  • a length of biaxially orientable tubing made of a nylon material or of a polyamide material, said length of tubing having been formed into the balloon during a biaxial orienting procedure including inflating at least a section thereof with a pressurized fluid in order to at least double its outer diameter;

    said balloon has a non-distended working profile having a predetermined size to which the balloon inflates without significant stretching thereof, and said balloon has an expansion profile having a maximum inflated size to which the balloon stretches without bursting during dilatation, said maximum inflated size being greater than said predetermined size of the non-distended working profile;

    said expansion profile of the balloon had been tailored whereby said balloon has a maximum inflated size selected from a range of maximum inflated sizes that are a function of balloon processing conditions; and

    said nylon material or polyamide material, when thus formed into said balloon, exhibits glass transition properties whereby the balloon material is within its glass transition state at human body temperature.

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