Ultrasound treatment tool, ultrasound treatment system, and endoscopic surgery system
AssigneeOlympus Corporation
InventorsYasuyuki MATSUMURA, Takamitsu SAKAMOTO, Ken FUJISAKI, Naoyuki SUIDO
Life of this patent
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Abstract
An ultrasound treatment tool that includes: a probe that includes a main body and a treating portion; and a first tubular portion. The first tubular portion includes at least one through hole that is formed in a wall of the first tubular portion so as to be in fluid communication with a liquid channel in the first tubular portion, and an opening that is formed at a distal end of the first tubular portion. A total opening area of the through hole(s) is larger than a cross-sectional opening area of the liquid channel at the opening.
Claims17
An ultrasound treatment tool comprising:
- a probe that includes a main body and a treating portion, the main body being configured to transmit ultrasonic vibration input from a proximal end side of the main body to a distal end side of the main body, the treating portion being arranged on the distal end side of the main body and being configured to treat a target site by transmitting the ultrasonic vibration in a state in which the target site is in a liquid;
- and
- a first tubular portion that is formed in a tubular shape and includes an inner lumen through which the probe is inserted, the first tubular portion including:
- at least one through hole that is formed in a wall of the first tubular portion and extends between an inner circumferential surface and an outer circumferential surface of the first tubular portion so as to be in fluid communication with a liquid channel in the inner lumen of the first tubular portion, and
- an opening to the inner lumen that is formed at a distal end of the first tubular portion,
- a total opening area of the at least one through hole being larger than a cross-sectional opening area of the liquid channel at the opening.
An ultrasound treatment tool comprising:
- a probe that includes a main body and a treating portion, the main body extending along a central axis from a proximal end side to a distal end side and being configured to transmit ultrasonic vibration input from the proximal end side to the distal end side of the main body along the central axis, the treating portion being arranged on the distal end side of the main body and being configured to treat a target site with the transmitted ultrasonic vibration in a state in which the target site is in a liquid;
- and
- a first tubular portion that is formed in a tubular shape with the probe being inserted therein, the first tubular portion including:
- at least one through hole that is formed in a wall of the first tubular portion and extends between an inner circumferential surface and an outer circumferential surface of the first tubular portion so as to be in fluid communication with a liquid channel of the first tubular portion, and
- an opening that is formed at a distal end of the first tubular portion,
- an antinode position of a standing wave of the ultrasonic vibration being positioned at the treating portion, and
- the at least one through hole being formed at a position along the central axis that corresponds to a node position nearest to the antinode position, or formed on a distal end side relative to the node position nearest to the antinode position.
Dependencies are inferred from the claim text.