Apparatus and methods for treating stroke and controlling cerebral flow characteristics
CA 2689644 C · Owner: Bates, Mark C. · Inventors: Schoenholz, Claudio Javier; Hogendijk, Michael; Parodi, Juan Carlos
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and methods for treatment of stroke are provided. In a preferred embodiment the present invention disposes at least one catheter having a distal occlusive member in either the common carotid artery (CCA) or both the vertebral artery (VA) and the CCA on the hemisphere of the cerebral occlusion. Blood flow in the opposing carotid and/or vertebral arteries may be inhibited. Retrograde or antegrade flow may be provided through either catheter independently to effectively control cerebral flow characteristics. Under such controlled flow conditions a thrombectomy device may be used to treat the occlusion and any emboli generated are directed into the catheter(s).
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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 August 22, 2002 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2024.
- 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
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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.