Surface pressure distribution detecting element

Details Surface pressure distribution detecting element Surface pressure distribution detecting element

1990-10-16

1992-01-14

Cuchlinski, Jr., William A.

Measuring and testing

Orthopedic pressure distribution

738657, 338 99, A61B 5103

Patent

active

050799495

ABSTRACT:
A detecting element for sensing surface pressure distributions comprising a substantially rigid insulating substrate, a plurality of scanning row electrodes, formed by metal deposition on said substrate, etched to form a pattern of substantially parallel electrodes which are spaced apart and oriented along a first axis, a thin resistive film, deposited on said substrate, having a resistance which varies as a function of contact area, a substantially resilient deformable surface layer, a plurality of scanning column electrodes, formed by metal deposition on said surface layer, etched to form a pattern of substantially parallel column electrodes which are spaced apart, said surface layer being bonded to said substrate by an anisotropic adhesive so that said column electrodes are oriented along a second axis which is perpendicular to said first axis, said surface layer transmitting pressure distribution to said row electrodes, resistive film, and column electrodes to form a matrix of variable contact resistances to provide analog information relating to the distribution of surface pressure applied to said surface layer.

REFERENCES:
patent: 3850034 (1974-11-01), Tsuchiya et al.
patent: 4492949 (1985-01-01), Peterson et al.
patent: 4570149 (1986-02-01), Thornburg et al.
patent: 4644801 (1984-02-01), Kustanovich
patent: 4734034 (1988-03-01), Maness et al.
patent: 4856993 (1989-08-01), Maness et al.

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