Motion Control, Inc.

Harold Hume Sears

Edwin Kay Iversen

Arthur D Dyck

Steven Reese Kunz

James R Linder

Joseph Anthony Jacobs

Peter Karl Strazdins

Shawn L Archer

Reed H Grant

Brent Taylor Jarvis

Jeffry David Christenson

Jeff Robert Welch

Ronald E Madsen, Jr

Steve R Kunz

Kevin B Hays

A prosthetic hand system may include a plurality of prosthetic fingers and a prosthetic thumb. The prosthetic hand system may include a thumb drive mechanism that may be used to actuate the prosthetic thumb. In some examples, the thumb drive mechanism may be configured to enable the prosthetic thumb to perform a pinching or grasping motion and a release motion. The prosthetic hand system may also include a backlock that enables the prosthetic thumb to maintain pinching or gripping pressure after a motor has been disengaged. The prosthetic hand system may also include a gear lock that may be configured to lock a finger joint. The prosthetic hand system may also include an adaptive gripping joint that may be located on each prosthetic finger. In some examples, the adaptive gripping joint may be configured to passively adapt the plurality of prosthetic fingers to one or more differently shaped objects.

Hand prosthesis

Compositions are provided for a prosthetic ankle comprising: a joint housing having a bottom surface, a clevis coupled to the joint housing such that the clevis can rotate about the joint housing, a prosthetic coupling structure that couples the clevis to an amputee, and an articulating joint contained in the joint housing. Additionally, a portion of the bottom surface of the joint housing can be curved allowing a substrate a preset amount of flexion when coupled thereto and flexed in a concave position.

Energy storing foot plate

A device and system is provided for a prosthetic device having an articulating joint for a leg amputee. The device includes a joint housing forming a chamber, and the chamber has a first opening. A rotary hub can be disposed within the joint housing and configured to act as the articulating joint. One or more vanes can extend outwardly from the rotary hub, and the vane is configured to actuate fluid flow through the first opening.

Device and system for prosthetic knees and ankles

A multi-axis wrist device is provided for use with a prosthetic limb. The wrist device includes a base plate that is configured for attachment to a prosthetic limb. A cross piece, having first and second axes, can be coupled to the base plate. A prosthetic attachment can be coupled to the cross piece. The cross piece can enable a user to simultaneously flex the prosthetic attachment in two different axes. A first and second torsional spring can be coupled to the first and second axes, respectively, to enable the prosthetic attachment to be biased toward a center point.

Wrist device for use with a prosthetic limb

Prosthetic foot

A system and method of grip force feedback for use with a prosthetic device is provided in the present invention. The system can include a prosthetic hand having a plurality of digits for use with the prosthetic device. A force sensor can be provided to produce a force signal and the force sensor is configured to be associated with the plurality of digits for the prosthetic hand. In addition, a force feedback controller can receive the force signal from the force sensor. A force feedback actuator is also in communication with the force feedback controller. The force feedback actuator can provide feedback vibrations to a user of the prosthetic device.

System and method for force feedback

A wrist device is provided for use with a prosthetic limb. The wrist device includes a base plate that is configured for attachment to a prosthetic limb and a sliding lock plate that is slidably engaged with the base plate. Both the base plate and the sliding lock plate have openings. Also included in the invention is a semi-cylindrical rotator that is configured for attachment to a prosthetic hand. The semi-cylindrical rotator has slots configured to receive the sliding lock plate and is coupled to the base plate in a manner that allows the sliding lock plate to lock into the slots.

A grip device for an artificial or prosthetic arm, including at least two opposable digits and a drive linkage powered by a drive motor. When the drive motor is powered it enables the two opposable digits to grip. The drive linkage includes a drive and transmission attached to the drive motor. A backlock is connected to the drive and transmission. Surrounding the backlock is a backlock housing which contains the drive, selected transmission elements, and a backlock. A stop element is also included for holding the backlock housing fixed with respect to ground. The stop element can be released to allow the backlock housing to move freely and to avoid power transmission without disrupting the operating structure of the transmission.

Safety clutch for a prosthetic grip

A movable prosthetic limb includes a drive linkage which is configured to move the prosthetic limb. An ultrasonic drive motor is coupled to the drive linkage and powers the drive linkage. The ultrasonic motor is non-backdrivable and has high torque at low speeds. Specifically, a prosthetic limb uses an ultrasonic motor to drive an elbow joint or prosthetic fingers. A movable prosthetic wrist includes a base configured to be coupled to an amputee. An ultrasonic drive motor is attached to the base, and a hand piece is attached to the ultrasonic drive motor to form a wrist joint. In this configuration, the ultrasonic drive motor directly moves the wrist joint. A harmonic drive can also be used for gear reduction in the wrist joint.

Prosthetic arm powered by an ultrasonic motor

The present invention relates to improved controllers for externally powered prosthetic limb devices or similar extension devices such as orthotic devices or a sensor probe device. The improved controller operates a highly-efficient, compact, reliable and low-maintenance tactile force feedback system for translating a sensed pressure force from a prosthesis contacting an object or surface into a tactile sensory feedback pressure force to the user. The tactile force feedback system comprises at least one contact-responsive transducer which translates a sensed contact pressure from a portion of an extension device which contacts an object or surface into a corresponding electrical signal. The electrical signal is received by a microprocessor and processed into a proportional output voltage for producing a proportional torque from a motor. The motor is connected to a backdrivable planetary gearbox having a rotatable shaft connected to one end of a lever such that the gearbox output causes the lever to move in an arc segment. The opposite end of the lever has an attached tip member positioned to contact, and slightly depress, the user's skin when the shaft is forwardly rotated. The contact pressure of the tip member is, thus, applied to the user's skin with a contact pressure force proportional to the contact pressure force sensed by the contact-responsive transducer. In addition, the improved controller may permit the user to initiate self-calibration of various selected user-dependent operating parameters whenever desired and an adaptive filter for permitting user control of the rate of movement of the device such that smooth and steady control of either slow or more rapid prosthesis movement is achieved. The improved controller may also recognize multiple trigger patterns from signal input generated from either a single or from multiple control sites to effect switching between modes of operation, i.e., degrees of freedom, and/or functions.

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Salt Lake City, UT, United States of America

Harold Hume Sears