Balloon dissectors
CA 2240348 C · Owner: Kayan, Helmut · Inventors: Echeverry, Jan M.; Jervis, James E.; Kayan, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A balloon (1000) formed from first and second sheets of a material has one or more outwardly extending horns (1001) formed in a distal region of the balloon. The material used to fabricate the balloon is preferably substantially inelastic over the range of inflation pressures used to inflate the balloon. When the balloon is in a deflated condition the horns may be , folded inwardly, into the interior space of the balloon to provide a balloon , which may easily be rolled folded, or otherwise gathered into a compact package. Upon inflation, the horns evert and extend outwardly beyond the distal end of the balloon. Another embodiment is an economical balloon dissection apparatus having …
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 December 11, 1996 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2018.
- 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.