Joint play quantification and analysis

    公开(公告)号:US10506951B2

    公开(公告)日:2019-12-17

    申请号:US15173157

    申请日:2016-06-03

    Applicant: ERMI, Inc.

    Abstract: A method includes obtaining rotational data and translational data for a joint, the rotational and translational data being indicative of rotational and translational movement of the joint during rotational and translational joint testing, respectively, the rotational and translational joint testing being implemented by a robotic testing apparatus applied to the joint. A quantity indicative of joint play of the joint is computed. The quantity is computed via a function of the rotational data and the translational data. The method includes determining whether the computed quantity exceeds a joint play threshold and, if the computed quantity exceeds the joint play threshold, comparing the rotational data and the translational data with preset rotational data and preset translational data for the rotational and translation joint testing, respectively.

    Joint Play Quantification and Analysis
    6.
    发明申请

    公开(公告)号:US20170347924A1

    公开(公告)日:2017-12-07

    申请号:US15173157

    申请日:2016-06-03

    Applicant: ERMI, Inc.

    Abstract: A method includes obtaining rotational data and translational data for a joint, the rotational and translational data being indicative of rotational and translational movement of the joint during rotational and translational joint testing, respectively, the rotational and translational joint testing being implemented by a robotic testing apparatus applied to the joint. A quantity indicative of joint play of the joint is computed. The quantity is computed via a function of the rotational data and the translational data. The method includes determining whether the computed quantity exceeds a joint play threshold and, if the computed quantity exceeds the joint play threshold, comparing the rotational data and the translational data with preset rotational data and preset translational data for the rotational and translation joint testing, respectively.

    Off-axis motion-based analysis of joints

    公开(公告)号:US10596057B2

    公开(公告)日:2020-03-24

    申请号:US15266721

    申请日:2016-09-15

    Applicant: ERMI, Inc.

    Abstract: A method includes obtaining test data for a joint, the test data being indicative of motion of the joint during joint testing implemented by a robotic testing apparatus applied to the joint to impart force oriented in a first degree of freedom for the joint, generating first data indicative of movement of the joint in the first degree of freedom based on the test data, generating second data indicative of concomitant movement of the joint in a second degree of freedom for the joint based on the test data, the concomitant movement arising from the imparted force, and determining a condition of the joint based on an analysis of the first data and the second data.

    Multiple test knee joint analysis
    10.
    发明授权

    公开(公告)号:US10595751B2

    公开(公告)日:2020-03-24

    申请号:US15266627

    申请日:2016-09-15

    Applicant: ERMI, Inc.

    Abstract: A method includes obtaining test data during a plurality of joint tests, the test data being indicative of respective motion during each test, each test being implemented by a robotic testing apparatus that applies, during each test, a respective force oriented in a respective plane. Respective primary data indicative of respective movement in a respective degree of freedom disposed within the respective plane for each test is generated based on the test data. Secondary data indicative of concomitant movement during a first test of the plurality of tests is generated based on the test data, the concomitant movement being in a secondary degree of freedom other than the respective degree of freedom disposed within the respective plane for the first test, the concomitant movement arising from the respective applied force. A joint condition is determined based on the primary data for each test and the secondary data.

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