ARTIFICIAL FOOT
    74.
    发明申请
    ARTIFICIAL FOOT 审中-公开

    公开(公告)号:US20180263792A1

    公开(公告)日:2018-09-20

    申请号:US15981149

    申请日:2018-05-16

    申请人: C LindheXtend AB

    IPC分类号: A61F2/66 A61F2/50

    摘要: A prosthetic foot device having a toe region, an ankle region and a heel region, said device comprising an attachment unit configured to be connected to a coupling device and/or to stump of an amputee; a resilient upper forefoot member extending from the attachment unit through the ankle region towards the toe region, said forefoot member comprising at least one elongated curvilinear forefoot leaf spring and at least one longitudinally extending parting slot dividing the toe region in at least two parts: a resilient heel member extending from the attachment unit through the ankle region towards the heel region, said heel member comprising at least one elongated curvilinear heel leaf spring; a resilient lower foot member attached to the forefoot member at said toe region and to said heel member in the heel region, wherein said lower foot member is laterally unitary along the longitudinal length thereof.

    Variable stiffness prosthetic foot
    75.
    发明授权

    公开(公告)号:US10034782B2

    公开(公告)日:2018-07-31

    申请号:US14858693

    申请日:2015-09-18

    申请人: Össur hf

    发明人: David Sandahl

    IPC分类号: A61F2/66 A61F2/50

    摘要: Prosthetic feet that provide for variable and adjustable stiffness are provided. A foot element can include a tongue portion defined or formed by a slot in the foot element that at least partially separates the tongue portion from a remainder of the foot element. The tongue portion can be operably connected to the remainder of the foot member to increase the stiffness of the foot member or operably disconnected from the remainder of the foot member to increase the flexibility of the foot member. The prosthetic foot further includes a mechanism for adjusting whether the tongue portion is operably connected or disconnected from the remainder of the foot member. The mechanism can be selectively actuated to adjust the stiffness of the foot element in dorsiflexion and/or plantarflexion and/or to adjust the degree to which the tongue portion is allowed to flex relative to the remainder of the foot member.

    Tapered flex plate for prosthetic foot

    公开(公告)号:US09968467B2

    公开(公告)日:2018-05-15

    申请号:US15139047

    申请日:2016-04-26

    IPC分类号: A61F2/66

    摘要: Prosthetic feet that provide improved rollover and performance are provided. A prosthetic foot can include a lower foot member extending from a heel end to a toe end, a second foot member disposed above the lower foot member, and an optional third foot member disposed above the second foot member. The second foot member is tapered such that its thickness decreases toward the proximal end. Optionally, the second foot member can taper toward its distal end as well as toward its proximal end from an intermediate location on the second foot member. The third foot member can be tapered such that its thickness decreases toward the distal end. There can be a gap between a distal end of the third foot member and the second foot member that closes during dorsiflexion of the prosthetic foot during use and provides dynamic stiffness control to the prosthetic foot.

    Prosthetic foot with hybrid layup
    78.
    发明授权

    公开(公告)号:US09907676B2

    公开(公告)日:2018-03-06

    申请号:US14737219

    申请日:2015-06-11

    申请人: Össur hf

    IPC分类号: B32B41/00 A61F2/50 A61F2/66

    摘要: A prosthetic foot has a plate-like foot member with a core section substantially defined by one or more layers comprising a first material fiber, an upper section disposed above the core section, the upper section substantially defined by one or more layers comprising a second material fiber, and a lower section disposed below the core section, the lower section substantially defined by one or more layers comprising a third material fiber, where the upper, lower and core sections together define a total thickness of the plate-like elongate foot member. An idealized ratio of the cross sectional area of each section can be determined such that under an applied load provided to the hybrid layup, the ratio of maximum stress of a given section over the flexural strength of that given section is approximately equal for all sections of the hybrid layup. The hybrid layup arrangement can be configured to have a greater strength, but generally the same stiffness, as a similar foot member made of carbon fiber.