Pulsating pressure chamber in a prosthetic limb
CA 2486555 A1 · Owner: Otto Bock Healthcare Lp · Inventors: Caspers, Carl A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for securing a prosthesis to the residuum of a limb of an amputee and for providing pressure therapy to the residuum so as to manage fluid within the residuum. The apparatus includes a socket (504) shaped to receive a residuum of a limb (502) of an amputee and configured to connect to a prosthetic limb. The socket (504) forming a chamber (505) between the socket (504) and the residuum (502) when the socket receives the residuum. The apparatus also includes a pressure control device (520) operably connected to the chamber (505) and capable of creating a positive pressure and a negative pressure within the chamber to provide pressure therapy to the residuum as …
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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 May 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2025.
- 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.