Patent Yard Sign in
Expired Canadian patentCanada

Fluidic connection system and method

CA 2049948 C · Owner: Kci Licensing, Inc. · Inventors: Zamierowski, David S.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A wound dressing (10) includes a cover membrane (22) comprising a semipermeable material with an adhesive-coated (30) skin contact surface (28). An opening (32) is formed in an interior portion of the membrane. An intermediate layer of material may be placed between the wound and the membrane contact surface for either absorbing fluids from the wound, e.g. with a hydrocolloid or hydrophilic material, or for passing such fluids to the opening with a synthetic material, e.g. rayon. A tube (34) includes a proximate end (36) fluidically communicating with the wound through the membrane opening. A distal end (38) of the tube is adapted for connection to a suction source (47) for draining the …

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 April 3, 1990 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2012.
  • 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 3, 1990
GrantedJanuary 8, 2002
Term endedApril 3, 2010
Patent numberCA 2049948 C
Classification (IPC)A61M27/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 3, 1990Patent grantedJan 8, 2002Term endedApril 3, 2010

Sources & verification

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