System and method of non-invasive continuous level sensing...

Details System and method of non-invasive continuous level sensing... System and method of non-invasive continuous level sensing...

2011-06-07

2011-06-07

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C128S897000, C606S001000, C606S004000

Reexamination Certificate

active

07956341

ABSTRACT:
Embodiments of the present invention provide a system and method for detecting the level of a fluid in a surgical cassette by projecting light from a linear light source into a wall of a cassette. Depending on the amount a light reflected or refracted in the cassette (i.e., due to the cassette material/fluid interface or cassette material/air interface (or other interface)) various portions of a linear sensor array will be more or less illuminated. By examining the illumination of the linear sensor array, the level of fluid in the chamber can be determined.

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