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US 4,003,382 AGranted
Retention catheter and method of manufacture
AssigneeEthicon, Inc.
InventorDenis G. Dyke
Life of this patent
Estimating the term…
Abstract
An all plastic retention catheter of the Foley type having a body of a thermoplastic polyurethane and a balloon of a thermosetting polyurethane. The catheter may be fabricated by a method wherein the thermosetting polyurethane balloon sleeve is molded with integral bands of a thermoplastic polyurethane polymer spaced at either end of the sleeve and subsequently sealed to the catheter body by fusing the thermoplastic bands to the body material with heat or solvent.
Claims11
A retention catheter comprising:
- a. an elongated flexible thermoplastic tube having a distal end and a proximal end and having a drainage lumen and an inflation lumen defined by the walls of said tube and extending from said proximal end to near said distal end, said inflation lumen terminating in an inflation port in the wall of the tube near the distal end thereof, said drainage lumen terminating in a drainage port in the wall of the tube intermediate said inflation port and said distal end, and
- b. a cylindrical thermosetting polyurethane balloon sleeve encircling a longitudinal section of said tube containing said inflation port and having end margins sealed to said tube on either side of said inflation port.
A retention catheter comprising:
- a. an elongated flexible thermoplastic polyurethane tube having a distal end and a proximal end and having a drainage lumen and an inflation lumen defined by the walls of said tube and extending from said proximal end to near said distal end, said inflation lumen terminating in an inflation port in the wall of the tube near the distal end thereof, said drainage lumen terminating in a drainage port in the wall of the tube intermediate said inflation port and said distal end, and
- b. a cylindrical thermosetting polyurethane balloon sleeve encircling a longitudinal section of said tube containing said inflation port and having end margins sealed to said tube on either side of said inflation port, said end margins comprising bands of thermoplastic polyurethane integral with the inner surface of the balloon sleeve.
Dependencies are inferred from the claim text.