Surgery – Truss – Pad
Patent
1986-11-17
1989-02-21
Smith, Ruth S.
Surgery
Truss
Pad
128771, 340573, 604318, A61B 500
Patent
active
048056324
ABSTRACT:
A urine specimen container for providing information verifying passage of a donor's urine directly from the urinary tract into the container. The urine specimen container is provided with a plurality (e.g., three) electrical contacts within the container body each spaced at a different distance above the bottom member of the container. A splash shield protects the contacts from the direct impingement of the urine stream. The exterior of the container has a conductive coating applied over at least a portion thereof whereby the hand of a donor will contact this coating. An electrical circuit having two portions is connected between the electrical contacts and the conductive coating. The first circuit portion is connected between the conductive coating and the contact closest to the bottom member of the container, and is responsive to a resistive input corresponding to the resistance from the donor's hand through the body and the urine stream to the contact. This first portion has a first selected time delay. The second portion is connected to the upper two of the three electrical contacts and is responsive to the resistance of urine connecting those two contacts. This second portion has a second selected time delay that is shorter than the first time delay. Interconnection between the circuit portions gives rise to a "true" specimen signal when the first time delay of the first circuit portion expires before any output signal is derived from the second circuit portion. The circuits may utilize integrated chips and are powered by a very low voltage battery.
REFERENCES:
patent: 2626387 (1953-01-01), Berry
patent: 3020528 (1962-02-01), Swanson, Jr. et al.
patent: 4654299 (1986-01-01), Ehrenkranz
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