Syringe content indicating device

Details Syringe content indicating device Syringe content indicating device

1982-11-05

1984-06-05

Yasko, John D.

Surgery

Truss

Pad

604111, 116227, A61B 600

Patent

active

044522517

ABSTRACT:
A means for detecting the presence of a transparent liquid in the barrel of a transparent angiography syringe comprising at least one indicator pattern positioned on the exterior of the barrel, the indicator pattern being a discrete, opaque pattern. When the syringe is empty, the indicator pattern is seen as having a first elliptical configuration; however, when the fluid is present in the barrel, the indicator pattern appears to have a second circular configuration, and the difference in apparent configuration is indicative of the presence of the liquid.

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patent: 4001801 (1977-01-01), Moulet
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