Fiber optic endoscopic gastrointestinal probe
First Claim
Patent Images
1. A balloon catheter comprising:
- an inflatable balloon having an inner surface;
a catheter having a longitudinal axis and a bore, said bore in communication with said balloon; and
an optical fiber, positioned within said bore, and having a lens positioned at a distal end of said optical fiber, said lens positioned at a working distance from said inner surface of said balloon and said distal end oriented substantially at an acute angle as measured from said longitudinal axis of said catheter to said inner surface of said balloon;
wherein said fiber is capable of transmitting light having a predetermined distribution of wavelengths, and wherein said balloon is transparent to at least a portion of said distribution of wavelengths of light.
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Abstract
A fiber optic probe and a balloon catheter used in conjunction with optical imaging systems, in particular with systems which deliver and collect a single spatial mode beam, such as a single photon, a multiphoton, confocal imaging and ranging systems, such as fluorescence imaging systems.
227 Citations
10 Claims
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1. A balloon catheter comprising:
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an inflatable balloon having an inner surface;
a catheter having a longitudinal axis and a bore, said bore in communication with said balloon; and
an optical fiber, positioned within said bore, and having a lens positioned at a distal end of said optical fiber, said lens positioned at a working distance from said inner surface of said balloon and said distal end oriented substantially at an acute angle as measured from said longitudinal axis of said catheter to said inner surface of said balloon;
wherein said fiber is capable of transmitting light having a predetermined distribution of wavelengths, and wherein said balloon is transparent to at least a portion of said distribution of wavelengths of light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A balloon catheter comprising:
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an inflatable balloon having an inner surface, a lumen, and a diameter between about 2.5 mm and 20 mm when inflated;
a catheter having a bore in communication with said lumen of said balloon; and
an optical fiber, positioned within said bore, and having a GRIN lens positioned at a distal end of said optical fiber, said GRIN lens positioned within about 1.0 mm to about 5.0 mm from said inner surface of said balloon when inflated, said optical fiber being rotatably and translationally moveable relative to said catheter;
wherein said fiber is capable of transmitting light having a predetermined distribution of wavelengths, wherein said balloon is transparent to at least a portion of said distribution of wavelengths of light, and wherein said optical fiber, when moved translationally and rotationally, focuses said light onto and receives backscatter from structures substantially adjacent to the exterior of said balloon.
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Specification