Light treatment system and light treatment method
AssigneeOlympus Corporation
InventorsKoji Matsumoto, Mitsuru Namiki
Life of this patent
Estimating the term…
Abstract
A light treatment system includes: a probe configured to be inserted into a body cavity, the probe including an optical fiber configured to propagate light, and a light emitter that is provided at a distal end of the optical fiber, the emitter being configured to emit the light; a balloon catheter into which the probe is inserted, the balloon catheter including a distal end portion that is to be inserted into the body cavity and that is to be dilated by being supplied with a liquid including air bubbles; and an air bubble generator configured to generate the air bubbles to be included in the liquid and change a property of the air bubbles.
Claims15
A light treatment system, comprising:
- a probe configured to be inserted into a body cavity, the probe including an optical fiber configured to propagate light, and a light emitter that is provided at a distal end of the optical fiber, the emitter being configured to emit the light;
- a balloon catheter into which the probe is inserted, the balloon catheter including a distal end portion that is to be inserted into the body cavity and that is to be dilated by being supplied with a liquid including air bubbles;
- and
- an air bubble generator configured to generate the air bubbles to be included in the liquid, the air bubble generator further being configured to change a property of the air bubbles,
- wherein the air bubble generator includes an air generator configured to generate air with variable pressure, and
- the air bubble generator is configured to vary the pressure of the air to be generated from the air generator to thereby change a concentration of the air bubbles in the liquid.
A light treatment method, comprising:
- inserting a balloon catheter and a probe into a body cavity, the balloon catheter including a distal end portion that is dilatable, the probe being configured to propagate light for treatment and emit the light propagated, the probe being configured to be inserted into the balloon catheter;
- fixing the distal end portion in the body cavity by circulating a liquid through the distal end portion to dilate the distal end portion;
- starting a process of generating air bubbles and causing the air bubbles to be included in the liquid, the process comprising:
- measuring diameters and a concentration of air bubbles in the liquid that have passed through the balloon catheter;
- and
- by at least one processor, based on a result of the measurement of the diameters and the concentration of the air bubbles and on diameters and a concentration that have been preset for the air bubbles, performing feedback control of at least one of a flow rate and a pressure at which the liquid is to be circulated and of diameters and a concentration of the air bubbles to be generated;
- and
- irradiating inside of the body cavity with the light from the probe.
A light treatment system, comprising:
- a probe configured to be inserted into a body cavity, the probe including an optical fiber configured to propagate light, and a light emitter that is provided at a distal end of the optical fiber, the emitter being configured to emit the light;
- a balloon catheter into which the probe is inserted, the balloon catheter including a distal end portion that is to be inserted into the body cavity and that is to be dilated by being supplied with a liquid including air bubbles;
- and
- an air bubble generator configured to generate the air bubbles to be included in the liquid, the air bubble generator being further configured to change a property of the air bubbles,
- wherein the air bubble generator includes a plurality of air feeding pipes, each of the plurality of air feeding pipes having a distal end provided with multiple holes through which air passes to generate the air bubbles,
- the multiple holes of each of the plurality of air feeding pipes have diameters varying from one air feeding pipe to another, and
- the air bubble generator is configured to selectively feed the air into the plurality of air feeding pipes to change diameters of the air bubbles.
Dependencies are inferred from the claim text.