1975-05-09
1976-05-25
Kamm, William E.
Surgery
Truss
Perineal
128 21E, 128DIG4, A61B 504
Patent
active
039585646
ABSTRACT:
An improved electrical contact is configured to provide more accurate eleical potential readings. Electrocardiograms and electroencephlograms, for example, require that a monitoring electrode be firmly held on a creature's body to give valid readouts. To that end, a suction cup is cast integrally from a resilient compound to create a sufficient suction when it is pressed against a surface. An annular shoulder portion molded in the suction cup engages a projection from the electrode and holds the electrode firmly on the surface. The suction cup's relatively wide lip ensures the continued creation of the vacuum while the biasing force of the annular shoulder on the extension ensures responsive operation over a prolonged period of time.
REFERENCES:
patent: 1487998 (1924-03-01), Woolf
patent: 2045672 (1936-06-01), Oliveri
patent: 2580628 (1952-01-01), Welsh
patent: 3534733 (1970-10-01), Phipps
patent: 3568663 (1971-03-01), Phipps
patent: 3735753 (1973-05-01), Pisarski
Johnston Ervin F.
Kamm William E.
Keough Thomas Glenn
Sciascia Richard S.
The United States of America as represented by the Secretary of
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