Optical Sensing Catheter System
First Claim
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1. An implantable medical device comprising:
- a) an elongated sheath, b) a waveguide disposed within said sheath, c) at least one multi-wavelength light source for illuminating said waveguide, d) at least one multi-wavelength photo-detection means to receive light from said waveguide, e) two or more optical sensors in optical communication with said light source and photo-detection means via said waveguide wherein each sensor is operative to modulate the propagation of light of a different wavelength in said waveguide.
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Abstract
An optical sensing catheter system for physiological measurements of vascular or arterial parameters at plurality of location deploys wavelength division multiplexing in a common optical fiber to communicate with each optical sensor. The sensors are preferably passive planar waveguide type devices disposed to interact with the environment external to the catheter or other medical device.
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Citations
20 Claims
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1. An implantable medical device comprising:
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a) an elongated sheath, b) a waveguide disposed within said sheath, c) at least one multi-wavelength light source for illuminating said waveguide, d) at least one multi-wavelength photo-detection means to receive light from said waveguide, e) two or more optical sensors in optical communication with said light source and photo-detection means via said waveguide wherein each sensor is operative to modulate the propagation of light of a different wavelength in said waveguide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification