Surgery – Truss – Pad
Patent
1992-06-22
1994-08-02
Kamm, William E.
Surgery
Truss
Pad
128731, 128733, A61B 50468
Patent
active
053336151
ABSTRACT:
Apparatus for digitally recording and analyzing electrocardial and other bioelectric signals, includes a port for connecting an external measuring device; first and second differential input channels for receiving a data signal from the measuring device and for amplifying and filtering the data signal; a compression circuit for compressing the data signal from the input channels so that the compressed data signal includes only changes in amplitudes at particular points, along with a measure of elapsed time since a previous change in amplitude at the particular points, thereby omitting redundant points of the data signal; a random access memory for storing the compressed data signal; a microprocessor for controlling the storage of the compressed data signal in the memory; a power management circuit for turning power to the apparatus ON and OFF at predetermined intervals; and a position switch for indicating the position of a person wearing the apparatus relative to a vertical position.
REFERENCES:
patent: 4193393 (1980-03-01), Schlager
patent: 4506678 (1985-03-01), Russell et al.
patent: 4878498 (1989-11-01), Abrams et al.
patent: 5125412 (1992-06-01), Thornton
patent: 5215098 (1993-06-01), Steinhaus et al.
Craelius William
Newby Nicki A.
Getzow Scott M.
Kamm William E.
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