Method for bonding polyurethane balloons to multilumen catheters

Details Method for bonding polyurethane balloons to multilumen catheters Method for bonding polyurethane balloons to multilumen catheters

1986-11-20

1988-04-12

Lowe, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156242, 156245, 264131, 264250, 264254, 264255, 264304, 264305, B28B 1106, B28B 138

Patent

active

047372192

ABSTRACT:
A process for making a balloon for use on a multilumen catheter using as a form for the balloon a mandrel having at least one groove and at least one score line. The mandrel is rotated while metering into the groove a thermoplastic adhesive. The balloon stock is formed by coating the mandrel with a solid thermosetting polyurethane prepolymer. After cooling of the mandrel a film of thermoplastic adhesive is wrapped over the balloon at about the score line. Once the assembly is cured the balloon stock is removed to result in a balloon having an adhesive film on the internal wall at one end and an adhesive film on the external wall at the other end.

REFERENCES:
patent: 2230138 (1941-01-01), Ewart
patent: 2308484 (1943-01-01), Auzin et al.
patent: 2318682 (1943-05-01), Fawick
patent: 2481488 (1949-09-01), Auzin
patent: 3539674 (1970-11-01), Dereniuk
patent: 4003382 (1977-01-01), Dyke

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