Computer aided fabrication of wheelchair seats or other body sup

Details Computer aided fabrication of wheelchair seats or other body sup Computer aided fabrication of wheelchair seats or other body sup

1989-01-17

1990-11-20

MacDonald, Allen

Boots, shoes, and leggings

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

Patent

active

049723510

ABSTRACT:
A system is provided for generating prescription wheelchair seats or specialized seating or body supports. The system includes a deformable seat portion which is formed to specialized dimensions of a seated patient. A planar, linear, array of linear transducers is stepped across the form in one dimension forming a series of signals representative of generally planar cross sections of the form. This series of cross-sectional signals is provided as an input to a numerically controlled cutting device which cuts a series of sheet stock foam in accordance with each cross-sectional area measured. These cross-sectional pieces are then assembled into the prescription seat.

REFERENCES:
patent: 4637789 (1987-01-01), Netznik
patent: 4828325 (1989-05-01), Brooks
S. I. Reger, et al., Shape and Pressure Distribution on Wheelchair Cushions, pp. 341-343, (1985).
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 of 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).
S. I. Reger, et al., Computer Aided Prescription of Specialized Seats for Wheelchairs (Aug. 31, 1987).

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