Remotely controlled apparatus and system for tracking and locating a source of photoemissions
CA 2187002 C · Owner: Neoprobe Corporation · Inventors: Olson, Karl W.; Thurston, Marlin O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System and apparatus particularly suited for tracking a radiopharmaceutical present within a lymph duct and locating a sentinel node within which the radiopharmaceutical has concentrated. A smaller straight, hand-held probe is, employed carrying two hand actuable switches. For tracking procedures the probe is, moved in an undulatory manner wherein the location of the radiopharmaceutical containing duct is determined by observing a graphics readout developed preferably employing a circularly accessed data memory. When the region of the sentinel node is approached, a switch on the probe device is actuated by the surgeon to carry out a sequence of squelching operations until a small node …
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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 October 2, 1996 and granted December 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 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.