Pressure transducer catheter with piezoelectric polymeric membrane
CA 1194135 A · Owner: Brown University Research Foundation · Inventors: De Rossi, Danilo E.; Galletti, Pierre M.; Dario, Paolo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catheter is disclosed including a support suitable for insertion into a body organ, a transducer carried by the support the transducer including, a flexible piezoelectric polymeric membrane and a pair of surface electrodes, mounted on the membrane the support including a rigid portion defining a flexure cavity inside the catheter, the membrane being mounted on the rigid support to permit free flexing of the membrane into and out of the cavity one, surface of the membrane communicating with the cavity the other surface of, the membrane being exposed to the exterior of the catheter to receive and flex in response to pressure variations in the organ. Electrical signals produced by the …
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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 September 24, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2002.
- 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.