Micro fastener for connecting blood vessels
CA 2173636 A1 · Owner: Novogradac, William E. (Deceased) · Inventors: Wholey, Mark H.; Novogradac, William E. (Deceased)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for closing or connecting blood vessels has a plurality of micro miniature barb which pierce the wall of the blood vessel and anchor the device in place. In one embodiment the fastener is comprised of a male member and a female member which are fastened to blood vessel segments with the micro miniature barbs. The male and female members are joined together by inserting the male member into the female member to form a permanent coupling. The device can also be used for opening a blood vessel which has been narrowed by disease or trauma.
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 February 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2015.
- 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.