Implantable shunt system and method of assembly
CA 1295209 C · Owner: Pudenz-Schulte Medical Research Corporation · Inventors: East, Gary P.; Laguette, Stephen W.; Heindl, Alfons
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgically implantable shunt system including a flow control valve and an antechamber is, provided for controlling the release of entrapped body fluids. The flow control valve includes a pair of molded plastic bases situated, respectively adjacent, to an inlet and an outlet of the valve which bases are, situated within a flexible encasement. Each base includes an outer housing, a valve membrane carrier positioned within the housing, and a flow control member. The flow control members each include a rigid nail-like central support and a separate flexible resilient membrane positioned on the central support. A first flow control member is capable of selectively occluding the valve inlet, …
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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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
- 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.