Balloon catheter and technique for the manufacture thereof
CA 1134705 A · Owner: The United States Of America, As Represented By The Secretary, U.S. Depa Rtment Of Commerce · Inventors: Boretos, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A single-lumen, one piece catheter approximately 0.04 inch in diameter with an integral balloon at its end having a wall thickness of 0.005 or less, sufficiently small to be retractible by suction into the catheter and to be extensible at a desired site by fluid pressure. The balloon may have a calibrated restricted leak aperture. The balloon portion of the catheter is made by heating a portion of the catheter tubing, stretching the tubing lengthwise, and applying fluid pressure to the tubing. The apparatus for forming the balloon includes a spring-loaded clamp to hold the tubing at one end, a capstan to hold the tubing at the other end, a heating coil wrapped around the tubing …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.