Apparatus and method for sterilization and embolization
CA 2204566 C · Owner: Sherwood Services Ag · Inventors: Ryan, Thomas P.; Lambrecht, Gregory H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (20) for transcervical sterilization or transcatheter embolization with a controlled bipolar RF catheter (21) for creating thermal lesions (22) in the fallopian tubes (23) or thrombosing vessels has a catheter (21) elongate along an axis thereof with a patient end (24). The catheter (21) is circular and sized for transcervical insertion into the fallopian tube or transcatheter vessel insertion respectively. A connector (25) on an end of the catheter (21) opposite the patient end (24) has the terminations (26) for RF and monitoring and is shaped for the surgeon to manipulate during placement and withdrawal. Two or more bipolar electrodes (29 30 and 31)on the patient end (24) are …
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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
- Filed May 6, 1997 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 6, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.