Urethral inserted applicator for prostate hyperthermia
CA 2095517 A1 · Owner: Tumeh, Amer M. · Inventors: Schaefermeyer, Theron N.; Terry, Philip A.; Turner, Paul F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A urethral insertable applicator for prostate hyperthermia includes an energy applicator (14) in association with a multi-tube balloon-type catheter (18). The energy applicator (14) may be a microwave applicator or an ultrasound applicator either of which, when inserted in the prostate will cause heating of the prostate , tissue surrounding the applicator. The applicator (14) with a, radiometer (11), may serve as a means to measure temperature by measuring the thermal energy radiated from the prostate tissue. Provision may be made for circulating a cooling fluid through a cooling chamber (73) between the applicator (14) and the tissue to be heated. The difference in temperature of the …
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 November 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 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.