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    Patient specific stemless prosthesis anchor components
    4.
    发明授权
    Patient specific stemless prosthesis anchor components 有权

    公开(公告)号：US11974925B2

    公开(公告)日：2024-05-07

    申请号：US16648128

    申请日：2018-09-21

    Applicant: HOWMEDICA OSTEONICS CORP.

    Inventor： Kevin P. Knox ,  Shawn M. Gargac ,  Markus Scheibel

    IPC: A61F2/40 ,  A61F2/30 ,  A61F2/46

    CPC classification number: A61F2/4003 ,  A61F2/30942 ,  A61F2/4059 ,  A61F2/4612 ,  A61F2/4637 ,  A61F2002/30011 ,  A61F2002/30289 ,  A61F2002/30408 ,  A61F2002/30574 ,  A61F2002/3093 ,  A61F2002/4062

    Abstract: A stemless humeral anchor (10) includes a first end (12) configured to be embedded in a proximal portion of a humerus and a second end (14); a mating portion (16) for an articular component; a transversely extending collar (20); and a rotation control feature (22, 22A) for resisting rotation when the stemless humeral anchor is implanted. A void filling protrusion (24) can extend circumferentially from rotation control feature and can include a porous shell (26), in which a void filling component (28) can be disposed. The rotation control feature can comprise arms. One or more arms (22A) can have a larger radial extent than the others (22). A prosthesis assembly includes a base member (104) that has a helical structure (224) and one or more pathways (300). The pathway is accessible from a proximal end and is directed distally through the helical structure. The pathway is located inward of an outer periphery of the helical structure. The pathway extends in a space between successive portions of the helical structure. The prosthesis assembly includes a locking device (108) that has a support member (132) and an arm (110) that projects away from the support member. The arm is disposed in the pathway when the support member is disposed adjacent to the proximal end of the base member. The arm is disposed through bone in the space between successive portions of the helical structure when the prosthesis assembly is implanted.

    Method for manufacturing a patient-specific prosthesis for a fractured long bone
    6.
    发明授权
    Method for manufacturing a patient-specific prosthesis for a fractured long bone 有权

    公开(公告)号：US11266503B2

    公开(公告)日：2022-03-08

    申请号：US16268336

    申请日：2019-02-05

    Applicant: HOWMEDICA OSTEONICS CORP.

    Inventor： Vincent Coulange ,  Céline Courtade-Jouanicq ,  Shawn M. Gargac ,  Marine Godelu ,  Guillaume Rognin

    IPC: A61F2/30 ,  A61F2/40 ,  A61B17/72

    Abstract: The invention concerns a method for manufacturing a prosthesis (11) for a fractured long bone of a patient, the method comprising the steps of: A) providing data representative of the fractured long bone, the fractured long bone comprising a diaphyseal fragment (2) comprising a medullary cavity (8); B) based on said data, designing the prosthesis specifically to the patient, the prosthesis comprising a stem part (12) configured to be inserted into the medullary cavity, step B) comprising: a sub-step of choosing, specifically to the patient, a contact zone (40) of the medullary cavity onto which a respective chosen mechanical stress is planned to be applied by the stem part, and a sub-step of designing the stem part so that the stem part may be inserted into the medullary cavity and thus apply the chosen mechanical stress to said contact zone; and C) manufacturing the prosthesis designed at step B).

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