US 12,004,972 B2
Pump system
David Sandahl, Reykjavik (IS); Dana Stewart Marlin, Reykjavik (IS); and Hafsteinn Jonasson, Reykjavik (IS)
Assigned to OSSUR ICELAND EHF, Reykjavik (IS)
Filed by Ossur Iceland ehf, Reykjavik (IS)
Filed on Jun. 15, 2022, as Appl. No. 17/841,109.
Application 16/686,854 is a division of application No. 15/685,488, filed on Aug. 24, 2017, granted, now 10,512,554, issued on Dec. 24, 2019.
Application 17/841,109 is a continuation of application No. 16/686,854, filed on Nov. 18, 2019, granted, now 11,376,139.
Claims priority of provisional application 62/379,905, filed on Aug. 26, 2016.
Prior Publication US 2022/0304833 A1, Sep. 29, 2022
Int. Cl. A61F 2/64 (2006.01); A61F 2/60 (2006.01); A61F 2/68 (2006.01); A61F 2/80 (2006.01); F04B 45/04 (2006.01); A61F 2/66 (2006.01); A61F 2/74 (2006.01)
CPC A61F 2/68 (2013.01) [A61F 2/60 (2013.01); A61F 2/64 (2013.01); A61F 2/80 (2013.01); F04B 45/04 (2013.01); A61F 2002/608 (2013.01); A61F 2002/6614 (2013.01); A61F 2/74 (2021.08); A61F 2/742 (2021.08); A61F 2002/802 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A prosthetic system comprising:
first and second parts rotatable relative to one another about a prosthetic knee, the first and second parts adapted to form at least part of a weight-bearing connection between a prosthetic foot and a socket; and
a pump system including:
a pump mechanism operatively connected to the first and second parts such that rotation between the first and second parts about a joint of the prosthetic knee moves the pump mechanism between a predetermined configuration in which a volume of a fluid chamber defined by the pump mechanism is zero or near-zero and an expanded configuration in which the volume of the fluid chamber is increased; and
a movable member including a first end portion connected to the pump mechanism and a second end portion connected to at least one of the first and second parts, the movable member pivotally connecting to a housing;
wherein rotation between the first and second parts rotates the movable member relative to the pump mechanism;
wherein the first part comprises a rotatable part of the prosthetic knee and the second end portion is arranged to engage the rotatable part of the prosthetic knee selectively.