Single segment microcatheter
CA 2287846 A1 · Owner: Chow, Sean L. · Inventors: Chow, Sean L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A single segment catheter (1) has a gradually changing flexibility from a distal (2) to a proximal end (3) of the catheter. According to one embodiment the catheter includes a plurality of strands (6) within the catheter tube wall, which change in diameter between the distal and proximal ends to achieve a catheter having a more flexible distal end and a continuously changing , flexibility along the catheter length with no joints or distinct changes in flexibility.
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 April 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2020.
- 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.