Other

Arizona State University

Dignity Health

Arizona Board of Regents, a Body Corporate

Springactive, Inc.

Thomas G Sugar

Kevin L Hollander

Pham Huy Nguyen

Saivimal Sridar

Jeffrey A Ward

Thierry Flaven

Jason A Kerestes

Matthew Aaron Holgate

Joseph Karl Hitt

Luis Jesus Lopez

Kurt Bauernfeind

Jeremy Palmiscno

Omik Save

Ammon Lovell

Sudhanshu Katarey

Ryan Borneman

Yashaswy Govada

Harshit Dangaich

George Wolf

Lee Griffith

Abhishu Patel

Benjamin Shuch

Robin Parmentier

Will Meredith

Alex Boehler

Chaitanya Kulkarni

Dhiraj R Nahar

A soft wearable medical device may comprise a force actuation system at least partially disposed in a glove assembly. The force actuation system may be a passive or active actuation system. The force actuation system may be configured to adjust a grip of a patient during use of the soft wearable medical device. The soft wearable medical device may further comprise a force indication system including a plurality of force sensors and a light array, each force sensor disposed in a finger of the glove assembly and the light array mounted to the glove assembly.

Assistive device for patients with somatosensation deficiency

Disclosed herein are various embodiments of a soft robotic device for assisting hemiparetic patients. In embodiments, the soft robotic device includes an inflatable actuator capable of assisting hemiparetic patients with their gait cycle via application of a force on the gluteus muscle.

Soft hip extension device to aid hemiparetic gait

An orthosis for increasing a range of motion of an ankle is disclosed. In various embodiments, the orthosis includes a frame including a ball shell and a heel shell; a first actuator disposed on the ball shell and configured to apply a first force against a ball region of a foot, resulting in a moment being applied at the ankle; and a first rod connecting the heel shell and the ball shell, the first rod being slidably connected to at least one of the heel shell or the ball shell. In various embodiments, a second actuator is disposed on the heel shell and configured to apply a second force against a heel region of the foot. In various embodiments, a calf shell is configured to support a calf region of a leg that is connected to the ankle.

Soft wearable robotic device to treat plantar flexion contractures

A phase oscillating device for affecting movement of a limb or a primary body includes a sensor coupled to the primary body. A physical state of the primary body is measured using the sensor. A phase angle of the primary body is determined based on the physical state measurement. The physical state measurement includes position, velocity, or acceleration. The phase angle of the primary body is filtered using a sine function. An actuator is coupled to the primary body. The actuator is triggered based on the phase angle of the primary body to provide a force or torque to assist or resist movement of the primary body. A secondary body is coupled to the primary body. The secondary body is oscillated using the actuator, which is triggered in phase with a gait step. Alternatively, a fan is coupled to the primary body and actuator to provide the oscillating force.

Systems and methods for adding or subtracting energy to body motion

A system and method for controlling a prosthetic limb are provided. A sensor component receives input from a wearer's muscle and provides a signal to a control component. The sensor component may be a force sensing resistor placed inside a socket of a prosthetic limb between a residual limb and the hard side of the socket. The control component processes the signal and provides instructions to an actuation component. In this manner, an actuation component may move a joint, or may change the velocity of a joint, or may change other characteristics of the prosthetic limb.

Joint control systems and methods utilizing muscle activation sensing

A method for harvesting energy from ankle motion includes coupling a generator module across an ankle joint, the generator module including a generator and an elastic member. The generator is affixed to the leg shank and at least one of the generator and the elastic member is continuously coupled to the foot across the ankle joint. Energy may be harvested in the elastic member while generating electricity with the generator from motion of the ankle joint. Alternatively, or in addition, electricity may be generated with the generator from energy harvested in the elastic member after the energy is harvested.

Method and apparatus for harvesting energy from ankle motion

The present invention is a mechanical element, commonly referred to as a 'Jack Spring' that is based upon the concept of adding and subtracting coils from a spring. In particular, with the method and apparatus of the present invention, by changing the number of coils in a spring, the actual or intrinsic stiffness of the spring is structurally changed. A very simple and practical method is used to adjust the number of coils. The Jack Spring actuator of the present invention is based upon adjusting the effective structure of a spring.

Adjustable stiffness Jack Spring actuator

Adjustable stiffness jack spring actuator

Constant force mechanisms and adjustable constant force mechanisms are described having two movable sliders constrained along two perpendicular axes and each abutting a resilient member. The mechanisms are adapted to produce an output force that is constant for a given input force. However, when an equilibrium position of one of the two resilient members is adjusted for a given mechanism, a different output force will result. Micro-compliant mechanisms are also described in which the resilient members may be made from one or more different elastomers.

Adjustable compliant mechanism

The present invention is a spring based actuator with a leaf spring having a length, width and thickness and a coil spring positioned over the leaf spring. The coil spring further comprises: a first end; a second end; and at least one force generator acting on either the first end of the coil spring and the second end of the coil spring to deflect the coil spring and the leaf spring.

Adjustable stiffness leaf spring actuators

Treadmills are generally discussed herein with specific discussion to Omni-directional treadmills that incorporate powered offset casters to move a belt in the X, Y, and theta directions. The belt is positioned over a frame and the frame includes a plurality of rollers for allowing the belt to turn about the frame. The powered offset casters can be mounted under the belt or on top of the belt and are controlled by a control system, which controls the translational motion and rotational motion of the belt.

Omni-directional treadmill

Growing community of inventors

Tempe, AZ, United States of America

Thomas G Sugar