Balloon catheter with stretchable shaft
CA 2035915 A1 · Owner: Martin, Geoffrey S. · Inventors: Martin, Geoffrey S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An angioplasty catheter comprising a main body having proximal and distal ends and defining a first lumen extending to the distal end and a second lumen terminating at an opening spaced from the distal end, and a collapsible connection piece in the main body between said opening and the distal end. A balloon is attached at the ends of the balloon to the main body and contains the opening and the connection piece and the, connection piece collapses axially when the balloon is inflated to minimise energy stored in the main body. This accommodates changes in length of the balloon so that the body will remain straight both during and after inflation of the balloon. A method of manufacture is …
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 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2013.
- 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.