Electrocautery coring using solid needle
CA 2299737 A1 · Owner: Pacala, Thomas J. · Inventors: Correia, James; Pacala, Thomas J.; Shikhman, Oleg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present disclosure relates to a method and apparatus (10) for transmyocardial re-vascularization. The apparatus (10) includes an incision needle (20) for creating an incision within a patient's heart to define a channel, an electrocautery assembly operatively associated with the incision needle (20) for transferring thermal energy to an inner surface of the channel to reduce bleeding therefrom, and to prevent the channel from closing. Preferably, thermal energy is not transferred to the epicardium to create a flap or channel cap after the cylindrical incision needle (20) is removed from relevant tissue to reduce bleeding from the channel.
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 July 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 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.