Computer aided prescription of specialized seats for wheelchairs

Details Computer aided prescription of specialized seats for wheelchairs Computer aided prescription of specialized seats for wheelchairs

1988-07-14

1989-12-26

MacDonald, Allen

Boots, shoes, and leggings

364473, 36441301, 364579, 297458, 297DIG4, 264222, 264313, G06F 1546

Patent

active

048902357

ABSTRACT:
A system for generating a prescription wheelchair or other seating or body support arrangement includes a deformable seat portion. A patient to be fitted with the wheelchair is placed upon the seat deforming a surface thereof. A signal representative of force distribution resultant from the patient along the seat is generated. In accordance with this signal, the seat surface may be selectively varied by a plurality of pneumatic actuators. An updated force distribution signal is generated. In this fashion, a means and method is provided for arriving at preselected force distribution of the patient on the wheelchair seat. This data is made available for transmission to a fabrication unit from which a permanent seat cushion with the desired characteristics may be fabricated.

REFERENCES:
patent: 4637789 (1987-01-01), Netznik
patent: 4828325 (1989-05-01), Brooks
S. I. Reger, et al., Computer Aided Prescription of Specialized Seats for Wheelchairs (Aug. 31, 1987).
S. I. Reger, et al., Shape and Pressure Distribution on Wheelchair Cushions, pp. 341-343 (9185).
S. I. Reger, et al., Instrumented, Adjustable Seat for Evaluating Posture and Body Contours, pp. 335-337 (1985).
D. A. Hobson, Research and Development Considerations and Engineering Perspective, pp. 122-129 (1986).
S. I. Reger, et al., Weightbearing Tissue Contour and Deformation by Magnetic Resonance Imaging, pp. 387-389 (1986).
G. W. McGrew, et al., Clinical Application of the Adjustable "Computer Chair", pp. 568-570 (1987).
K. C. Chung, et al., Comparative Evaluation of Pressure Distribution on Flat Foams, etc., pp. 323-325 (1987).
K. C. Chung, et al., Body Contours and Pressure Distributions of Normal and Sci Subjects, etc., pp. 515-517 (1987).
K. C. Chung, et al., Analysis of Compression, Shear and Surface Tension on Seat Cushions, pp. 269-271 (1987).
D. M. Brienza, et al., Design of a Computer Aided Manufacturing System for Custom Contoured Wheelchair Cushions, pp. 312-313 (1988).
K. C. Chung, et al., Effect of Contoured Support Surface on Pressure Distribution, pp. 314-315 (1988).
O. Nwaobi, et al. HIP Angle and Upper Extremity Movement Time in Children with Cerebral Palsy, pp. 39-41 (1985).

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