Sheathed probes for tissue type recognition
CA 2284150 A1 · Owner: Skladnev, Victor · Inventors: Thompson, Richard L.; Wunderman, Irwin; Skladnev, Victor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention incorporates electrodes (3) in the tip of the sheath cover (1) for a diagnostic probe that makes both electric and optical measurements of tissue contacted by the sheath. The electrodes are positioned relative to the optical window (2) in such a way as to ensure that sealing is not compromised by the presence of the electrodes. The electrodes are close by to ensure that both the optical and electrical measurements are made on the same area of tissue. The invention uses the hoop tension in the sheath to apply the needed spring force to the electrode contact. In addition the invention provides a piece of turbid material such as a polymer of controlled composition as a …
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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 March 17, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 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.