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1. (WO2017034841) PUMP SYSTEM

Pub. No.:    WO/2017/034841    International Application No.:    PCT/US2016/046967
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Tue Aug 16 01:59:59 CEST 2016
IPC: A61F 2/66
A61F 2/74
Applicants: OSSUR ICELAND EHF
OSSUR AMERICAS, INC.
Inventors: JONASSON, Hafsteinn
GRANZ, Dadi
STEINBERG, Marco
SANDAHL, David
Title: PUMP SYSTEM
Abstract:
A prosthetic system (5) includes a prosthetic foot (4) having an upper foot element (14) with a concave-forward facing portion (18) and foot portion (20) extending forwardly therefrom. An intermediate foot element (24) is disposed below the upper foot element (14) and has a front portion coupled to the foot portion (20) of the upper foot element (14). A lower foot element (28) is disposed below the intermediate foot element (14). A pump system (3) is coupled to the prosthetic foot (4) and comprises a pump mechanism (2) including a housing (40) defining a cavity (58), and a membrane (46) situated in the cavity (58). The pump mechanism (2) is movable between an original configuration and an expanded configuration. An arm member (38) is connected to the pump mechanism (2) and operatively coupled to the intermediate foot element (24). The arm member (38) is arranged to move the pump mechanism (2) toward at least the expanded configuration upon movement of the intermediate foot element (24) relative to the upper foot element (14).