OPTICAL PROBE, DRIVE CONTROL METHOD THEREFOR, AND ENDOSCOPE APPARATUS
First Claim
Patent Images
1. An optical probe, comprising:
- a sheath to be inserted into a body cavity;
an optical fiber inside the sheath;
an optical component attached to a distal end portion of the optical fiber inside the sheath;
wherein a light beam transmitted through the optical fiber is emitted from the optical component toward a body tissue in the body cavity, andwherein the sheath comprisesa plurality of balloons spaced at predetermined intervals on a part on the distal end portion side of an outer periphery and capable of inflating/deflating in a radial direction orthogonal to a longitudinal axis,a suction inlet located between the plurality of balloons to draw the body tissue at the part on the distal end portion side of the outer periphery by suction,a balloon inflation port connected to the balloons, anda suction port connected to the suction inlet, andthe plurality of balloons are airtightly locked to an body cavity inner wall by supplying a fluid or a gas through the balloon inflation port to pressurize and inflate the balloons, and pressure in a space formed between the plurality of locked balloons and the body cavity inner wall is reduced through the suction port to cause the body tissue to adhere strongly to the part on the distal end portion side of the outer periphery by suction.
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Abstract
An optical probe, comprising:
- a sheath to be inserted into a body cavity;
- an optical fiber inside the sheath;
- an optical component attached to a distal end portion of the optical fiber inside the sheath;
- wherein a light beam transmitted through the optical fiber is emitted from the optical component toward a body tissue in the body cavity, and
- wherein the sheath comprises
- a plurality of balloons spaced at predetermined intervals on a part on the distal end portion side of an outer periphery and capable of inflating/deflating in a radial direction orthogonal to a longitudinal axis,
- a suction inlet located between the plurality of balloons to draw the body tissue at the part on the distal end portion side of the outer periphery by suction,
- a balloon inflation port connected to the balloons, and
- a suction port connected to the suction inlet, and
- the plurality of balloons are airtightly locked to an body cavity inner wall by supplying a fluid or a gas through the balloon inflation port to pressurize and inflate the balloons, and pressure in a space formed between the plurality of locked balloons and the body cavity inner wall is reduced through the suction port to cause the body tissue to adhere strongly to the part on the distal end portion side of the outer periphery by suction.
25 Citations
14 Claims
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1. An optical probe, comprising:
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a sheath to be inserted into a body cavity; an optical fiber inside the sheath; an optical component attached to a distal end portion of the optical fiber inside the sheath; wherein a light beam transmitted through the optical fiber is emitted from the optical component toward a body tissue in the body cavity, and wherein the sheath comprises a plurality of balloons spaced at predetermined intervals on a part on the distal end portion side of an outer periphery and capable of inflating/deflating in a radial direction orthogonal to a longitudinal axis, a suction inlet located between the plurality of balloons to draw the body tissue at the part on the distal end portion side of the outer periphery by suction, a balloon inflation port connected to the balloons, and a suction port connected to the suction inlet, and the plurality of balloons are airtightly locked to an body cavity inner wall by supplying a fluid or a gas through the balloon inflation port to pressurize and inflate the balloons, and pressure in a space formed between the plurality of locked balloons and the body cavity inner wall is reduced through the suction port to cause the body tissue to adhere strongly to the part on the distal end portion side of the outer periphery by suction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14)
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12. A drive control method for an optical probe which comprises an optical fiber and an optical component attached to a distal end portion of the optical fiber inside a sheath to be inserted into a body cavity and emits a light beam transmitted through the optical fiber from the optical component toward a body tissue in the body cavity, the optical probe further comprising a longitudinal drive section which drives the optical component in a longitudinal direction of a longitudinal axis of the sheath in the sheath, the sheath comprising a plurality of balloons spaced at predetermined intervals on a part on the distal end portion side of an outer periphery and capable of inflating/deflating in a radial direction orthogonal to the longitudinal axis, a suction inlet located between the plurality of balloons to draw the body tissue at the part on the distal end portion side of the outer periphery by suction, a balloon inflation port connected to the balloons, and a suction port connected to the suction inlet, comprising the steps of:
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a locking step of airtightly locking the plurality of balloons to an body cavity inner wall by supplying a fluid or a gas through the balloon inflation port to pressurize and inflate the balloons, and an adhesion step of reducing pressure in a space formed between the plurality of locked balloons and the body cavity inner wall through the suction port to cause the body tissue to adhere strongly to the part on the distal end portion side of the outer periphery by suction. - View Dependent Claims (13)
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Specification