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23 条记录 (耗时 0.04 秒)

    Suture anchor
    4.
    发明授权
    Suture anchor 有权

    公开(公告)号：US11452515B2

    公开(公告)日：2022-09-27

    申请号：US15057077

    申请日：2016-02-29

    申请人： Parcus Medical LLC

    发明人： Mark D. Brunsvold

    IPC分类号： A61B17/04

    摘要： An anchor device and system for coupling soft tissue to osseous tissue includes a stopper member that supports a loop of suture material. A fixing member includes features that allow it to be rigidly coupled to surrounding bone and thus hold the stopper member in a cavity within the bone. The loop of suture material, in turn, supports a second suture device, which is coupled to, and thus retains, the soft tissue. In certain embodiments, the stopper member includes a mechanical linkage for coupling it to the fixing member, and surface features that resist withdrawal of the fixing member from the bone.

    Therapeutic back support and stabilization
    5.
    发明授权
    Therapeutic back support and stabilization 有权

    公开(公告)号：US10271659B2

    公开(公告)日：2019-04-30

    申请号：US14853814

    申请日：2015-09-14

    申请人： ACCESS ENTERPRISE, LLC

    发明人： Mark Powicki

    IPC分类号： A47C7/40 ,  A47C1/023 ,  A47C7/44 ,  A47C7/46

    摘要： A therapeutic back support device including a back support portion that automatically and repeatedly moves forward to maintain engagement with a user's back as the user moves forward with respect to a chair seat. The back support portion substantially resists backward motion and provides substantially continuous therapeutic support to the user's spine pending a release signal.

    Complex mass trajectories for improved haptic effect
    6.
    发明授权
    Complex mass trajectories for improved haptic effect 有权

    公开(公告)号：US11465175B2

    公开(公告)日：2022-10-11

    申请号：US17074559

    申请日：2020-10-19

    申请人： VIBRANT COMPOSITES INC.

    发明人： Pratheev Sabaratnam Sreetharan ,  Andrew Baisch ,  Michael Karpelson

    IPC分类号： B06B1/04

    摘要： A haptic actuator includes mechanical links defining a first J-trajectory and mechanical links defining a second J-trajectory as well as a motor coupled to the mechanical links so as to synchronously accelerate a first mass over the first J-trajectory and a second mass over the second J-trajectory. During a first time interval, reactive forces of the first mass accelerating substantially balance reactive forces of the second mass accelerating and during a second time interval reactive forces of the first mass accelerating do not substantially balance reactive forces of the second mass accelerating. This un-balanced condition results in a tap signal being produced.

    Doping and trap profile engineering in GaN buffer to maximize AlGaN/GaN HEMT EPI stack breakdown voltage
    8.
    发明授权
    Doping and trap profile engineering in GaN buffer to maximize AlGaN/GaN HEMT EPI stack breakdown voltage 有权

    公开(公告)号：US11031493B2

    公开(公告)日：2021-06-08

    申请号：US16431151

    申请日：2019-06-04

    申请人： Indian Institute of Science

    发明人： Mayank Shrivastava ,  Vipin Joshi

    IPC分类号： H01L29/778 ,  H01L29/20 ,  H01L29/205 ,  H01L29/207

    摘要： The present invention proposes a set of impurity doping configurations for GaN buffer in an AlGaN/GaN HEMT device to improve breakdown characteristics of the device. The breakdown characteristics depend on a unique mix of donor and acceptor traps and using carbon as a dopant increases both donor and acceptor trap concentrations, resulting in a trade-off in breakdown voltage improvement and device performance. A modified silicon and carbon co-doping is proposed, which enables independent control over donor and acceptor trap concentrations in the buffer, thus potentially improving breakdown characteristics of the device without adversely affecting the device performance.