Flint Rehabilitation Devices, LLC

University of California

Daniel K Zondervan

Nizan Friedman

David J Reinkensmeyer

Mark Bachman

Brendan Smith

An exercise cycle includes a crankshaft, cranks mounted to the crankshaft, a drive mechanism including a ferromagnetic flywheel that rotates in response to rotation of the crankshaft, and a non-contact force adjustment mechanism with which a force required to rotate the flywheel can be adjusted, the force adjustment mechanism including a pivotable member to which magnets are mounted, wherein the magnets can be moved closer to the flywheel when the pivotable member is pivoted toward the flywheel to increase the force required to rotate the flywheel and can be moved farther away from the flywheel when the pivotable member is pivoted away from the flywheel to decrease the force required to rotate the flywheel.

Exercise cycle

In one embodiment, an exercise system includes a user interface device sized and configured to fit within a user's hand, the user interface device including a microcontroller configured to control operation of the device, a first sensor configured to sense movements of the device, a second sensor configured to sense forces applied to the device, and a communication device configured to communicate data concerning the sensed movements and forces to a separate device.

Systems and methods for facilitating rehabilitation and exercise

User interface device

Hand-worn user interface device

In one embodiment, a wheelchair drive mechanism adapted to mount to a wheelchair includes a drive lever adapted to be rotated forward and rearward by a user of the wheelchair, a clutch mechanism associated with the drive lever, wherein actuation of the clutch mechanism causes the drive lever to be coupled to a wheel of the wheelchair such that they rotate together, and a clutch actuation device provided on the drive lever that is operable by the wheelchair user to actuate the clutch mechanism.

Lever-operated wheelchair

In one embodiment, an exercise apparatus for exercising an arm includes a lever adapted to attach to a wheel of a wheelchair, a forearm support pivotally mounted to the lever that is adapted to support a forearm of a wheelchair user during exercise, and a resilient member attached to the lever that is adapted to resist movement of the lever by the user.

Growing community of inventors

Long Beach, CA, United States of America

Daniel K Zondervan