Surgery – Truss – Pad
Patent
1987-06-18
1988-11-29
Coven, Edward M.
Surgery
Truss
Pad
128675, 128748, 73705, A61B 502
Patent
active
047873965
ABSTRACT:
A miniaturized pressure transducer, particularly suited for intravascular blood pressure measurement, utilizing a single optical fiber for transmitting light both to and from a flexible diaphragm having a light-reflecting surface on one side, the opposite side being exposed to and deflected in accordance with the pressure being measured. The end of the fiber through which light is transmitted to and reflected light received from the diaphragm is ground to form a spherical lens integral with the fiber, whereby light passing through the end of the fiber is focused at a predetermined focal point. The fiber is axially positioned so that the center of the diaphragm, which coincides with the lens axis, is at the focal point when the diaphragm is at maximum deflection, i.e., when its opposite surface is exposed to a predetermined, maximum anticipated pressure.
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Coven Edward M.
Fiberoptic Sensor Technologies, Inc.
McGuire Charles S.
Sykes Angela D.
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