Device and method for observing vessels, specially blood vessels
CA 2255870 A1 · Owner: Dwl Elektronische Systeme Gmbh · Inventors: Zolondz, Jurgen; Widenhorn, Gerold; Grund, Karl Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for observing vessels specially blood , vessels, in bodily cavities and hollow organs comprising an ultrasonic , transducer (14) which can be moved into an observation position by means of an endoscopic device (10, 12), in addition to an ultrasonic unit (34) which can be connected to the ultrasonic transducer operating according to the Doppler principle. Said unit is designed to detect organ and/or liquid movement at , least at a given distance from the ultrasonic transducer. The inventive device also contains a Doppler evaluation unit (38) located downstream from the ultrasonic unit (34) which digitally converts an output signal from the ultrasonic …
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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 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 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.