The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Dec. 17, 2021
Ossur Hf, Reykjavik, IS;
Olafur Freyr Halldorsson, Reykjavik, IS;
David Sandahl, Reykjavik, IS;
Bjarni Gunnarsson, Reykjavik, IS;
Egill Sveinbjorn Egilsson, Reykjavik, IS;
OSSUR HF, Reykjavik, IS;
Abstract
Aprosthetic system includes aprosthetic footdefining an upper surface and having a flexible configuration andincluding a movable member anda pumpsystem attached to the prosthetic footmechanism. The pumpsystem includes a pumpmechanismdefiningdefinesa fluid chamberhaving variable configuration and an actuating partpositioned between the member and the foot.The actuating part is arranged to selectively engage with and separate a distance from the upper surface of the foot plate to move the pump mechanism between a first position in which a volume of the fluid chamber is zero or near-zero and a second position in which the volume of the fluid chamber is expanded relative to the first position. The volume of the fluid chamber increases when the actuating part moves away from the upper surface of the foot plate.During heel strike, the member pulls the upper side of the pump forward to expand the fluid chamber; during stance or toe-off, the member pushes the pump backward to compress the fluid chamber. The member includes two non-pivotally joined pieces.