Pressure monitor
First Claim
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1. An apparatus for directly monitoring the pressure of a liquid in a catheter, the apparatus comprising:
- a light emitting device;
a photo sensitive device spaced from said light emitting device; and
a catheter having a light transmissible measuring zone, said measuring zone being disposed between said light emitting device and said photo sensitive device;
wherein said photo sensitive device receives light from said light emitting device transmitted through said measuring zone of said catheter, said photo sensitive device transforms the received light into electric signals reflecting an amount of light transmitted through said measuring zone of said catheter.
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Abstract
The present invention is a pressure monitor for measuring the pressure in a liquid in catheter, comprising a light emitting device, a photosensitive device receiving the light from the light emitting device and transforming the light received into electric signals. The invention also includes a measuring zone. The light transmitted through the measuring zone varies in accordance with the pressure in the catheter.
179 Citations
10 Claims
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1. An apparatus for directly monitoring the pressure of a liquid in a catheter, the apparatus comprising:
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a light emitting device; a photo sensitive device spaced from said light emitting device; and a catheter having a light transmissible measuring zone, said measuring zone being disposed between said light emitting device and said photo sensitive device; wherein said photo sensitive device receives light from said light emitting device transmitted through said measuring zone of said catheter, said photo sensitive device transforms the received light into electric signals reflecting an amount of light transmitted through said measuring zone of said catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification