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    PROSTHETIC KNEE JOINT WITH ELECTRONICALLY-CONTROLLED TRANSMISSION
    41.
    发明申请
    PROSTHETIC KNEE JOINT WITH ELECTRONICALLY-CONTROLLED TRANSMISSION 有权

    公开(公告)号：US20230092812A1

    公开(公告)日：2023-03-23

    申请号：US17798627

    申请日：2021-02-22

    Applicant: Vanderbilt University

    Inventor： Michael Goldfarb ,  Steven C. Culver

    IPC: A61F2/64 ,  A61F2/70

    Abstract: A knee prosthesis or orthosis includes at least one moveable joint and a torque modulating unit. The torque modulating unit is configured to impose a controllable torque on the at least one moveable joint. The torque modulating unit includes at least one of a motor or brake. The at least one of the motor or brake is coupled to the at least one moveable joint via an electronically-controlled transmission. The electronically-controlled transmission is a two-speed transmission.

    PROSTHETIC KNEE WITH SWING ASSIST
    42.
    发明申请
    PROSTHETIC KNEE WITH SWING ASSIST 有权

    公开(公告)号：US20230055765A1

    公开(公告)日：2023-02-23

    申请号：US18046447

    申请日：2022-10-13

    Applicant: Vanderbilt University

    Inventor： Michael Goldfarb ,  Almaskhan Baimyshev ,  Harrison Bartlett ,  Jantzen Lee

    IPC: A61F2/64 ,  A61F2/70

    Abstract: The present disclosure provides for a device and method of control for an artificial prosthetic knee. A prosthetic knee according to the present disclosure relies on strictly passive means of providing support during weight bearing and supplements a resistive swing-phase mechanism with a small powered actuator. This actuator adds power to the knee, exclusively during swing phase, to improve swing-phase behavior. In particular, the knee still relies on the resistive swing-phase mechanism to provide nominal swing-phase knee motion, but supplements that motion as needed with the small powered actuator.

    METHOD FOR DETECTING INTENT IN AN ADAPTIVE LOWER LIMB DEVICE
    43.
    发明申请
    METHOD FOR DETECTING INTENT IN AN ADAPTIVE LOWER LIMB DEVICE 有权

    公开(公告)号：US20230051598A1

    公开(公告)日：2023-02-16

    申请号：US17797320

    申请日：2021-02-16

    Applicant: Vanderbilt University

    Inventor： Michael Goldfarb ,  Jantzen T. Lee

    IPC: A61F2/70

    Abstract: A method for detecting a user's intent in an adaptive lower limb device includes providing the adaptive lower limb device. The lower limb device includes a device control unit. The device control unit includes activity controllers and at least one accelerometer. The acceleration features are measured via the at least one accelerometer. The measured acceleration features are determined whether they correspond to a tapping movement initiated by a user with an intent to switch from a first one of the plurality of activity controllers to a second one of the plurality of activity controllers. If the measured accelerating features correspond to the tapping movement, the control unit of the adaptive lower limb device is switched from the first one of the activity controllers to the second one of the activity controllers.

    System and method for providing biomechanically suitable running gait in powered lower limb devices
    44.
    发明授权
    System and method for providing biomechanically suitable running gait in powered lower limb devices 有权

    公开(公告)号：US11318028B2

    公开(公告)日：2022-05-03

    申请号：US16383052

    申请日：2019-04-12

    Applicant: VANDERBILT UNIVERSITY

    Inventor： Michael Goldfarb ,  Amanda Shultz ,  Brian Lawson

    IPC: A61F2/70 ,  A61F2/68 ,  A61F2/60 ,  A61F2/64 ,  A61F2/76 ,  A61F2/66 ,  A61F2/50

    Abstract: Systems and methods for a running controller for a lower limb device including at least a powered knee joint are provided. The method includes collecting real-time sensor information for the lower limb device and configuring the lower limb device to a first state in a finite state model for an activity mode including the running mode. The method further includes, based on the sensor information, transitioning the lower limb device from a current state to a subsequent state in the finite state model for the detected mode when a pre-defined criteria for transitioning to the subsequent state is met, and repeating the transitioning until the activity mode changes. In the system and method, the finite state model includes at least one stance state and at least one swing state, where the at least one stance state includes at least one absorption state and at least one propulsion state.

    Cylinder actuator
    45.
    发明授权
    Cylinder actuator 有权

    公开(公告)号：US11131192B2

    公开(公告)日：2021-09-28

    申请号：US16963939

    申请日：2019-02-01

    Applicant: Vanderbilt University

    Inventor： Michael Goldfarb ,  Harrison Bartlett ,  Beau Johnson

    IPC: F01B7/16

    Abstract: A cylinder actuator includes a body assembly and a piston assembly. The body assembly includes a first cylinder nested concentrically within a second cylinder. The piston assembly slides linearly within the first and second cylinders. The piston assembly includes a first piston assembly end and a second piston assembly end. The first piston assembly end includes first and second pistons. The first piston moves within the first cylinder. The second piston moves within the second cylinder. The piston assembly includes first and second piston rods. The first piston rod extends from the first piston through a first end of the first cylinder. The second piston rod extends from the second piston through a first end of the second cylinder. The piston rods are joined at the second end of the piston rod assembly located outside of the first and second cylinders.

    Spool and body architectures for three-position directional control valves
    46.
    发明授权
    Spool and body architectures for three-position directional control valves 有权

    公开(公告)号：US10788133B2

    公开(公告)日：2020-09-29

    申请号：US15794074

    申请日：2017-10-26

    Applicant: VANDERBILT UNIVERSITY

    Inventor： Michael Goldfarb ,  Jason Mitchell

    IPC: F16K11/07 ,  F16K31/06 ,  F15B13/04

    Abstract: A directional-control valve is typically comprised of a valve spool that slides linearly within a valve body. The valve body typically includes five internal ports, which are covered or exposed as the spool slides within the body. The typical five-internal-port architecture precludes certain combinations of port connectivity when the spool is in the center position. For example, when the spool is in the center position, providing connectivity between the actuator ports, while simultaneously providing fluid isolation of the supply and exhaust ports, is not directly achievable with a standard five-port architecture. This application describes three embodiments that enable the aforementioned port connectivity when the spool is in the center position.

    Coordinating operation of multiple lower limb devices
    47.
    发明授权
    Coordinating operation of multiple lower limb devices 有权

    公开(公告)号：US10137010B2

    公开(公告)日：2018-11-27

    申请号：US15054381

    申请日：2016-02-26

    Applicant: Vanderbilt University

    Inventor： Michael Goldfarb ,  Brian Lawson

    IPC: A61F2/60 ,  A61F2/70 ,  A61F2/64 ,  A61F2/66 ,  A61F2/68 ,  A61F2/76 ,  A61F2/50

    Abstract: Systems and methods for operating autonomous lower limb devices, including at least one adjustable joint and configured for at least supporting a body are provided. A method includes collecting real-time sensor information associated with the autonomous lower limb device. The method also includes receiving, over a communications link, remote data for at least one other lower limb device configured for supporting the body. The method further includes generating control data for transitioning the autonomous lower limb device from a current state in a current finite state model for operating the autonomous lower limb device to a different state in the current finite state model, where the different state is selected based on the real-time sensor information and the remote data.

    Parallelogram load cell
    48.
    发明授权
    Parallelogram load cell 有权

    公开(公告)号：US10111762B2

    公开(公告)日：2018-10-30

    申请号：US15180617

    申请日：2016-06-13

    Applicant: Vanderbilt University

    Inventor： Michael Goldfarb ,  Jason Mitchell ,  Huseyin Atakan Varol ,  Brian Edward Lawson ,  Don Truex

    IPC: A61F2/60 ,  A61F2/66 ,  A61F2/70 ,  A61F2/68 ,  G01L1/22 ,  G01L1/14 ,  A61F2/64 ,  A61F2/76

    Abstract: A device includes a first member and a second member disposed in series along a longitudinal axis. The device also includes links coupling first joints of the first member to second joints of the second member. The first and second members and the links arranged to define a planar parallelogram linkage. The devices also include a resilient element disposed between the first member and the second member, the first member and the second member preloaded against the resilient element. The first member and the second member are preloaded to provide an arrangement of the first and the second joints in which a motion of the first joints with respect to the second joints is constrained to a direction substantially parallel to the longitudinal axis. The devices further include a sensor for generating a signal indicating a separation between the first member and the second member.

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