Catheters for treating prostate disease
CA 2106680 C · Owner: Sterzer, Fred · Inventors: Sterzer, Fred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Applying squeezing pressure to a diseased prostate by means of a urethral , and/or rectal catheter (100) incorporating an inflatable prostate balloon (122); to compress the prostate while it is being irradiated from a microwave antenna (116) increases, the therapeutic temperature to which the prostate tissue more distal to the microwave antenna (116) can be heated without heating any non-prostate tissue beyond a maximum safe temperature and reduces the , temperature differential between the heated more distal and more proximate prostate tissue from the microwave antenna (116).
Read the whole patent
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
- Filed April 12, 1991 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 2013.
- 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.