Larry Bohanan, the inventor of the Quadriciser, was raised in Knoxville, Tennessee, and worked 28 years at the Oak Ridge National Laboratory and the Y-12 National Security Complex. He supported prominent scientists and engineers in their patent and invention endeavors there.
Tragedy struck when his father Wallace suffered several mini-strokes and a major stroke, which left him immobile and with decreasing circulation that presented new problems. The doctor advised amputation due to gangrene, but Larry was determined to help. He created a motorized machine that mimicked a walking motion, allowing Wallace to move all four limbs and improve circulation. After using the machine, Wallace opened his eyes for the first time in two days, and the new device facilitated much-needed circulation.
The device was so successful that Larry’s cousin Colin, paralyzed for 11 years after a motorcycle accident, asked to use it. After just nine days of use, Colin was reflexively able to catch his hat when it blew off his head – representing a remarkable improvement that marked the beginning of the Quadriciser in 1996.
Pictured using the first Quadriciser invented
Shown with the second Quadriciser invented
The Quadriciser is a medical device that helps individuals with minimum to severe disabilities receive rehabilitative therapy. It achieves this by moving all four limbs simultaneously in a natural motion with high repetitions to help reconnect nerve pathways in the brain.
This motorized machine has a timer, speed control, grip assist gloves, foot cradles, adjustment bar, adjustable trapeze cords, gait wedge, and a reverse function. The bars at the top allow for multiple ranges of motion in the arms. The foot cradles are designed to give a natural walking motion while increasing flexion in the foot with specialized wedges that increase or decrease flexion.
The Quadriciser is a in-home physical therapy tool that allows multiple ranges of motion in the arms while providing mass practice. Praised for gentle therapy, the Quadriciser team has spent years working with the medical community to develop the ultimate physical therapy device. View the diagram to see an image of the Adult Quadriciser Unit and learn more about the Quadriciser features offered.
Located in the foothills of the Great Smoky Mountains in Loudon, TN, we are an FDA-registered, ISO 13485-certified medical device engineering , manufacturing, and technical services company supplying both military and commercial markets. In our years of operation, we have earned a strong reputation as the “can-do” company, innovating new products and technical services to meet the ever-changing demands of medical devices and equipment.
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FDI is the manufacturer and distributor of the Quadriciser Robotic Therapy System.
