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Expired Canadian patentCanada

Fluid monitoring apparatus and methods

CA 1332193 C · Owner: Surgitrac Corp. · Inventors: Murphy, R. Edward; Pollock, Richard A.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Apparatus for accurately and more safely monitoring blood and bodily fluids in a patient. In one embodiment, at least one load cell supports a container for receiving various sizes of sponges that hold such fluids. The sponges may be sorted into the container utilizing a sorting grid located above or forming a part of the container, and photoelectric or other sensors detect the number of sponges placed into the container via each opening in the grid. The load cells and sensors are connected to controller circuitry which counts, tracks and displays the number of each size of sponges in the container and the weight of fluid in the sponges. The weighing apparatus may be connected to a computer …

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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

  • Granted September 27, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 27, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 10, 1989
GrantedSeptember 27, 1994
Term endedSeptember 27, 2011
Patent numberCA 1332193 C
Classification (IPC)A61B5/00 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedApril 10, 1989Patent grantedSep 27, 1994Term endedSep 27, 2011

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.