Heating catheters
CA 2086667 A1 · Owner: Joshi, Sharad H. · Inventors: Abele, John E.; Nardella, Paul C.; Joshi, Sharad H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catheter device (34) and method for heating tissue the device , having a catheter shaft (10) constructed for insertion into a patient's body, and at least one chamber (8) mounted on the catheter shaft. The catheter shaft has at least one lumen (23) for fluid flow through the shaft. The chambers are defined by walls that are at least in part expandable. Fluid flows through the lumens, (23), between the chambers and a fluid source outside the body. The chambers (8, 9) can be filled with the fluid after they have been placed within the body. A heating device (38) heats liquid within at least one of the chambers, so that heat is transmitted from the liquid to surrounding tissue by thermal …
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 July 3, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 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.