Physiotherapeutic chair like device

Chairs and seats – Bottom or back with means to alter contour

Patent

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Details

5191, 5236B, 128 44, 128 49, 128 58, 297441, 297457, A47C 746, A61H 700

Patent

active

047984147

ABSTRACT:
A special chair with embodiments providing means for prevention and treatment of back disorders by both static and dynamic operational modes comprising an integral seat and back assembly composed of multiple articulating hard surfaced segments floating on and supported by a plurality of elastic tension cords, some having oval shaped cams attached thereto. The elastic tension cords are suspended in parallel and attached to transverse members which are connected to left and right chair sides all of which are assembled in an arrangement to automatically adjust contoured and proper support to the lower and middle back regions in accordance with the weight and body bulk distribution of the occupant. A motor drive arrangement and cam spool assembly are concealed within the body of the chair to activate the hard surface elongated segments of said integral seat and back assembly in an alternating translatory and articulating motion to result in passive exercise to the lower and middle back muscles and vertebrae of the occupant.

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