NEW METHOD TO MAKE TUBE-IN-TUBE BALLOON

摘要

A tube-in-tube assembled parison for preparation of an elongated medical device. The parison if formed by assembling in tube-in-tube fashion a first tube of orientable polymer material and a second tube formed of orientable polymer material disposed around the first tube, with an adhesive tie layer disposed between the first and second tubes. The tubes are brought into contact to form a unitary parison. The adhesive may allow movement between the polymer layers during balloon blowing. The first tube, or the second tube, or both, may have been longitudinally pre-stretched after formation thereof but before assembly of the parison.

主权项

1. A method of making an expandable medical balloon, comprising:
disposing an adhesive layer on a tubular parison, the tubular parison comprising polyamide, poly(ether-block-amide), or a combination thereof; and longitudinally pre-stretching the tubular parison from a first length to a second length.