Fetal pulse oximetry sensor
CA 2179303 A1 · Owner: Corometrics Medical Systems, Inc. · Inventors: Thomas, Simon W. H.; Pruehsner, William R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fetal pulse oxymetry sensor device containing a pulse oximetry sensor is disclosed. The device also includes a spiral (10) for fetal attachment. One or both of the light detecting portions of the pulse oximetry sensor (34) is spring biased to be movable with respect to the body (14) of the device. Alternatively the light emitting portion (36, 38) and light detecting portion (40) may be mounted within the housing (114) of the device, with the housing being spring biased towards the fetal skin. In this manner the pulse oximetry sensor is, maintained in intimate contact with a fetal tissue. This provides for accurate oximetry sensor measurements since the errors due to the detection of …
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 December 13, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2016.
- 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.