Minimally invasive biopsy device
CA 2214375 C · Owner: City Of Hope · Inventors: Mccarty, Todd; Chu, David Z. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A minimally invasive biopsy device includes a cylindrical retractor and a cylindrical cutting tool slidingly engaged within the cylindrical retractor. The cylindrical retractor is adapted for insertion in an incision above a lesion to be excised and separates, the walls of the incision to provide access to the tissue to be excised. The cylindrical cutting tool has a cutting means whichmakes a cylindrical incision around the tissue to be excised. The tissue can then be accurately and quickly removed.
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 August 29, 1997 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2019.
- 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.