Particular surface replacement prosthesis
    1.
    发明授权
    Particular surface replacement prosthesis 失效
    特殊表面置换假体

    公开(公告)号:US4911720A

    公开(公告)日:1990-03-27

    申请号:US474179

    申请日:1983-03-10

    Inventor: John P. Collier

    Abstract: An articular surface prosthesis composed of a porous material that is substantially noncorrodible and nonbiodegradible by body fluids. The prosthesis serves as a replacement of, for example, a femoral cap. The prosthesis fits over the femur which is shaped, typically, to a right circular cylinder outline, to receive the replacement which has a similarly shaped cavity. The prosthesis fits snugly over the femur and presents at the bone prosthesis interface coarse pores (e.g., 100 to 500 micrometers) to permit bone ingrowth; the pores are graded toward smaller or fine sizes (e.g.,

    Abstract translation: 由多孔材料组成的关节表面假体,其基本上是非可矫治的,并且被体液不可生物降解。 假体用作例如股骨帽的替代物。 该假体适合于通常成形为右圆形圆柱轮廓的股骨,以接收具有类似形状的腔的置换。 假体紧贴在股骨上方并呈现在骨假体界面处的粗糙孔(例如,100至500微米)以允许骨向内生长; 孔被分级为较小或精细的尺寸(例如,<50微米),以防止骨向内生长并允许软骨在假体的关节侧向内生长。

    T CELL RECEPTOR-DEFICIENT T CELL COMPOSITIONS

    公开(公告)号:US20250002852A1

    公开(公告)日:2025-01-02

    申请号:US18762762

    申请日:2024-07-03

    Abstract: The invention is directed to modified T cells, methods of making and using isolated, modified T cells, and methods of using these isolated, modified T cells to address diseases and disorders. In one embodiment, this invention broadly relates to TOR-deficient T cells, isolated populations thereof, and compositions comprising the same. In another embodiment of the invention, these TOR-deficient T cells are designed to express a functional non-TOR receptor. The invention also pertains to methods of making said TCR-deficient T cells, and methods of reducing or ameliorating, or preventing or treating, diseases and disorders using said TOR-deficient T cells, populations thereof, or compositions comprising the same.

    APPARATUS AND METHOD FOR SURGICAL MARGIN ASSESSMENT USING BIOIMPEDANCE SENSING ARRAY

    公开(公告)号:US20240268698A1

    公开(公告)日:2024-08-15

    申请号:US18568940

    申请日:2022-06-10

    CPC classification number: A61B5/0536 A61B5/6843 A61B5/7264

    Abstract: A bioimpedance device for surgical cavities has pick-up electrodes surrounded by driving electrodes, each driving electrode having greater area than the pick-up electrodes, the electrode array coupled through an adjacent connector to an electronics module. The electronics module fits through laparoscopic ports. The electronics module includes a voltage controlled current source, multiplexing for driving electrodes, a force sensor, and voltage buffers, and couples to a data acquisition system coupled to a processor. The processor uses the apparatus to perform bioimpedance mapping of tissue. A method of mapping bioimpedance includes contacting tissue with the electrode array, sequentially driving at least one of the driving electrodes with an alternating current at frequencies between 100 and 1000000 hertz while reading the sense electrodes through analog to digital converters into the processor; using readings of the sense electrodes to generate a bioimpedance map of the tissue; the electrode array fitting through laparoscopic ports.

    Method and apparatus for quantitative hyperspectral fluorescence and reflectance imaging for surgical guidance

    公开(公告)号:US12061328B2

    公开(公告)日:2024-08-13

    申请号:US18144767

    申请日:2023-05-08

    CPC classification number: G02B21/06 A61B1/063 G02B21/36

    Abstract: An imaging system includes an illumination device for illuminating a target. A surgical microscope receives light from the target, the surgical microscope comprising at least one optical output port at which at least a portion of the received light is provided as an output from the surgical microscope. A tunable filter receives the portion of the received light provided as the output from the surgical microscope, the tunable filter being tunable to pass a filtered portion of the received light, the filtered portion of the received light having a plurality of wavelengths selected by the tunable filter and provided as output from the tunable filter. A high-resolution, broad-bandwidth electronic camera receives the light of a plurality of wavelengths selected by the tunable filter, the electronic camera converting the light of a plurality of wavelengths selected by the tunable filter to a plurality of electrical signals. A processor processes the plurality of electrical signals to form an image of the target.

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