Positional feedback system for medical mattress systems

Details Positional feedback system for medical mattress systems Positional feedback system for medical mattress systems

1994-05-09

1997-03-18

Trettel, Michael F.

Beds

Invalid bed or surgical support

Sectional user supporting surface

5710, 5713, 5715, 5424, A61G 704

Patent

active

056110960

ABSTRACT:
An apparatus adjusts the pressures of a therapeutic mattress surface in accordance with the angular position of that surface. The apparatus comprises an angular position sensor and a rotation sensor which are housed together in an enclosure having a top surface in the form of a circular plate. The circular plate mounts either on the surface of the mattress or on the bottom of a bed frame supporting the mattress. The angular position and rotation sensors measure the horizontal plane referenced perpendicular to the direction of the force of gravity. The apparatus further comprises a controller blower valve assembly which processes data received from the angular position and rotation sensors to maintain, increase, or decrease the pressures within the mattress.

REFERENCES:
patent: 4628556 (1986-12-01), Blackman
patent: 4708249 (1988-09-01), Goodwin
patent: 4745647 (1988-05-01), Goodwin
patent: 5003654 (1991-04-01), Vrzalik
patent: 5029352 (1991-07-01), Hargest et al.
patent: 5181288 (1993-09-01), Heaton et al.
patent: 5220698 (1993-06-01), Hannant

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