Virtual ligament balancing
    32.
    发明授权

    公开(公告)号:US12080014B2

    公开(公告)日:2024-09-03

    申请号:US17953737

    申请日:2022-09-27

    CPC classification number: G06T7/60 G06T7/0014 G06T2207/30008

    Abstract: A method of generating a correction plan for a knee of a patient includes obtaining a ratio of reference bone density to reference ligament tension in a reference population. A bone of the knee of the patient may be imaged. From the image of the bone, a first dataset may be determined including at least one site of ligament attachment and existing dwell points of a medial femoral condyle and lateral femoral condyle of the patient on a tibia of the patient. Desired positions of contact in three dimensions of the femoral condyles of the patient with the tibia of the patient may be obtained by determining a relationship in which a ratio of bone density to ligament tension of the patient is substantially equal to the ratio of reference bone density to reference ligament tension.

    Injection molding feedstock delivery system

    公开(公告)号:US12005491B2

    公开(公告)日:2024-06-11

    申请号:US17154370

    申请日:2021-01-21

    CPC classification number: B22D17/2015 B22F3/003 B22F3/225 B29C45/18 B29C45/53

    Abstract: A feedstock delivery system for injection molding includes a vessel unit that includes a vessel with an internal volume and an inlet for receipt of a feedstock. First and second dispensing units are alternatively connectable to the vessel unit and each include first and second ends, first and second valves, and a buffer chamber. The first end is connectable to the dispensing unit such that the buffer chamber is in communication with the internal volume of the vessel. The second end is connectable to an injection mold and defines an outlet of the feedstock delivery system. The outlet is in communication with the buffer chamber, and the buffer chamber is positioned between the first and second valves. The buffer chamber of the first dispensing unit defines a first chamber volume, and the buffer chamber of the second dispensing unit defines a second chamber volume greater than the first chamber volume.

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