Device for manometric measurement of the esophagus
First Claim
1. A device for manometric measurement of the oesophagus (21) comprising a catheter (2) having a pressure sensor, and a recording unit (3) having a light source (9) for emitting monochromatic and coherent light and a counting unit for counting light pulses, wherein the pressure sensor further comprises a pliable optical fiber (5) having first and second ends embedded in an elastic base material (4) and is constructed as a Fabry Perot measuring section which is connected to the recording unit by a fiber-optic light guide (8), wherein said first end (6) of the optical fiber (5) is metal-coated and the second end (7) is partially metal-coated and is connected to the fiber-optic light guide (8), whereby the fiber-optic light guide (8) conveys the light emitted from the light source (9) to the optical fiber (5) and conveys a return light pulse from the optical fiber to the counting unit (18).
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Accused Products
Abstract
A device for manometric measurement of the oesophagus has a catheter with a pressure sensor and a recording unit with a light source for monochromatic and coherent light, and a counting unit for light pulses. The pressure sensor is constructed as a Fabry Perot measuring section and has a pliable optical fiber embedded in elastic base material. The optical fiber is connected via a fiber-optic light guide to the recording unit (3). One end (6) of the optical fiber (5) is metal-coated and the other end (7) is partially metal-coated and connected to the fiber-optic light guide (8). The fiber-optic light guide (8) conveys not only the light from the light source to the optical fiber but also the light pulses from the optical fiber to the counting unit.
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Citations
12 Claims
- 1. A device for manometric measurement of the oesophagus (21) comprising a catheter (2) having a pressure sensor, and a recording unit (3) having a light source (9) for emitting monochromatic and coherent light and a counting unit for counting light pulses, wherein the pressure sensor further comprises a pliable optical fiber (5) having first and second ends embedded in an elastic base material (4) and is constructed as a Fabry Perot measuring section which is connected to the recording unit by a fiber-optic light guide (8), wherein said first end (6) of the optical fiber (5) is metal-coated and the second end (7) is partially metal-coated and is connected to the fiber-optic light guide (8), whereby the fiber-optic light guide (8) conveys the light emitted from the light source (9) to the optical fiber (5) and conveys a return light pulse from the optical fiber to the counting unit (18).
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12. A device for manometric measurement of the oesophagus comprising:
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a pressure sensing catheter; a light source for providing monochromatic and coherent light to said catheter; a light guide for transmitting light between said catheter and said light source; a counting unit for receiving light and counting light pulses; said catheter including a pliable optical fiber embedded in an elastic base material and constructed as a Fabry Perot measuring section optically connected to said counting unit via a fiber-optic light guide, with one end of the optical fiber being metal coated and the other end being partially metal coated; whereby the fiber optic light guide conveys light from the light source to the optical fiber and conveys light pulses from the optical fiber to the counting unit.
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Specification