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Honda Makes Public New Robotic Walking Assist Device

November 7th, 2008 Medgadget Editors Geriatrics, Rehab


Honda is clearly committed to robotic assist devices for the elderly and patients with neurological disorders as they announce their second iteration of a walking assist machine that automatically adds strength into patient’s step. Looking back on the last version, Honda went ahead and extended the concept in the new device to help with lifting of the legs, and supporting of body weight, not just adding energy to the step at the hip.
Key features of the yet to be named device from Honda:

1. Convenient sitting-type device
· The user simply needs to wear the shoes and raise the seat into place.
· The user can benefit from the assist without need of a belt to fasten the device to their body.
· The structure to position the device between the user’s legs minimizes the required footprint, therefore making it easier for them to maneuver.
2. Method to assist bodyweight support
· The device will support a portion of the person’s bodyweight by lifting the seat as the frame between the shoe and seat bends and extends, just like knees, with the force from the motor. As a result, the load on leg muscles and joints (in the hip, knees, and ankles) is reduced.
· Honda developed a unique mechanism where the seat and frame follow the movement of the body and legs. The assisting force will be directed toward the user’s center of gravity, just as with human legs, which enables the device to provide assistance in various movements and postures including walking, going up and down stairs, and in a semi-crouching position.
3. Natural control of the assisting force
· Natural walking is achieved by changing the amount of assisting force applied to the right and left legs through the control of two motors based on the information obtained though sensors imbedded in the shoes of the device.
· The effectiveness of the device was increased in those motions and postures which put increased load on knees, such as going up and down stairs and in a semi-crouching position. This was achieved by adjusting the assisting force in accordance with the bending and stretching motion of the knees.
Key specifications of experimental walking assist device with bodyweight support system
Weight 6.5kg (including shoes and batteries)
Drive system Motor X 2
Battery pack Lithium ion battery
Operating time per charge 2 hours (including walking and in a semi-crouching posture, etc.)
Suitable height of the user Within plus or minus 5cm of the set height
(Example: set height for Medium size is 170cm)

Press release: Honda Unveils Experimental Walking Assist Device With Bodyweight Support System …
Flashbacks: Honda Walking Assist Device Update: Feasibility Testing ; Walking Assistant From Honda ; Mystery Robotic Assist Walking Device

Medgadget Editors

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

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