Abstract: A method for treating cartilage of a human being includes bringing an excision unit which ultrasonically vibrates into contact with a predetermined portion of the cartilage, heating the predetermined portion of the cartilage to a temperature of 120° C. or higher by the excision unit and excising, by the excision unit, the predetermined portion of the cartilage that has been heated to the temperature of 120° C. or higher while pressing the predetermined portion.

Abstract: A method for treating cartilage of a human being includes, bringing an excision unit which ultrasonically vibrates into contact with a predetermined portion of the cartilage, heating the predetermined portion of the cartilage to a temperature of 120° C. or higher by the excision unit within 2.2 seconds and excising, by the excision unit, the predetermined portion of the cartilage that has been heated to the temperature of 120° C. or higher while pressing the predetermined portion.

Abstract: An ultrasonic treatment system for a joint has an ultrasonic transducer configured to generate ultrasonic vibration at a predetermined frequency, a treatment unit configured to treat a bone or a cartilage with the ultrasonic vibration, a frequency measurement unit configured to measure the frequency of the ultrasonic vibration of the treatment unit, a calculation unit configured to calculate a tilt indicating change, in a predetermined time, of the frequency measured with the frequency measurement unit, and a controller configured to determine whether change of absolute value of the tilt is equal to or larger than predetermined absolute value of the tilt.

Abstract: The ultrasonic treatment instrument for articulations according to the embodiment of the present invention includes, at the distal end of the probe, the treatment section which performs a desired treatment on the treated target part. The treatment portion is provided with an edge which extends in a direction crossing, or a direction parallel to, the longitudinal direction of the probe; a first ultrasonic transducer which generates ultrasonic vibration in a direction crossing the edge; and a second ultrasonic transducer which generates ultrasonic vibration in a direction parallel, to the edge.

Abstract: The treatment section integrally includes, on the distal side of a probe, a cortical bone abrasion portion which abrades a living body tissue or a bone among treated target parts by mechanical abrasion by ultrasonic vibration, and a cartilage abrasion portion which generates heat by ultrasonic vibration and abrades a cartilage among the treated target parts by dissolutive abrasion.

Abstract: A treatment method which treats a living tissue using an ultrasonic device includes making the ultrasonic device come in contact with the living tissue in a state where the product of a pressing force of the ultrasonic device to the living tissue, an amplitude of an ultrasonic vibration caused by the ultrasonic device, and a resonance frequency of the ultrasonic device becomes a predetermined value, and excising the living tissue in a state where the ultrasonic device is in contact with the living tissue.

Abstract: An arthroscopical surgical method including administering a fluorescent chemical agent into a joint, which is a treatment target, allowing the fluorescent chemical agent to be adsorbed by a degenerated region that has degenerated from a normal region in a cartilage inside the joint, which is the treatment target, displaying and observing an emission of fluorescence from the degenerated region, which has adsorbed the fluorescent chemical agent, by infrared excitation light on a display through an arthroscope, and allowing a surgeon to recognize the degenerated region in the cartilage inside the joint, which is the treatment target.

Abstract: A surgical system for treating cartilage includes an output unit, a transducer, an excision unit, and a controller. The output unit generates a driving power. The transducer is connected to the output unit. The transducer converts the driving power into ultrasonic vibration. The excision unit is in contact with a predetermined portion of the cartilage. The excision unit heats the predetermined portion of the cartilage by energy converted based on the driving power. The excision unit excises the cartilage by receiving pressure by an operator while being in contact with the cartilage. The controller controls the driving power output from the output unit so that the predetermined portion of the cartilage is heated to a temperature of 120° C. or higher within 2.2 seconds.

Abstract: An ultrasonic treatment instrument for articulations has a bone abrasion mode in which vibration is performed at a first frequency and a first amplitude, and a cartilage dissolution mode in which vibration is performed at a second frequency which is higher than the first frequency, and a second amplitude which is less than the first amplitude, wherein a first vibration velocity, which is a product of the first frequency and the first amplitude, and a second vibration velocity, which is a product of the second frequency and the second amplitude, coincide or substantially coincide.

Abstract: In an arthroendoscopical surgical method, a resection target area, and a freshening treatment area which becomes repair surfaces with bleeding, are identified, and a resection line and a freshening line are drawn on a tear site in a meniscus, which is emphasized by fluorescence with use of a fluorescent medicine under excitation light. Using an ultrasonic treatment tool and an arthroscope, the resection target area is resected by a probe which generates ultrasonic vibrations, based on the resection line and freshening line under visible-light illumination. Thus, an inclined resection surface is formed, and planar repair surfaces with bleeding are joined and repaired.

Abstract: An arthroscopical surgical method using an ultrasonic treatment device for a joint includes: transmitting ultrasonic vibration to a treatment portion of the ultrasonic treatment device, removing an injured region of an articular cartilage so that a subchondral bone is exposed, and forming a cartilage edge which is nearly angled at 90° with the exposed surface of the subchondral bone to form a pool-shaped depression; forming a hole which pierces up to a cancellous bone of the subchondral bone through the depression, and scratching blood vessels in the cancellous bone; causing bleeding from the blood vessels so that blood is retained in the depression via the hole.

Abstract: A treatment method which treats a living tissue using an ultrasonic device includes making the ultrasonic device come in contact with the living tissue in a state where the product of a pressing force of the ultrasonic device to the living tissue, an amplitude of an ultrasonic vibration caused by the ultrasonic device, and a resonance frequency of the ultrasonic device becomes a predetermined value, and excising the living tissue in a state where the ultrasonic device is in contact with the living tissue.

Abstract: A surgical system for treating cartilage includes an output unit, a transducer, an excision unit, and a controller. The output unit generates a driving power. The transducer is connected to the output unit. The transducer converts the driving power into ultrasonic vibration. The excision unit is in contact with a predetermined portion of the cartilage. The excision unit heats the predetermined portion of the cartilage by energy converted based on the driving power. The excision unit excises the cartilage by receiving pressure by an operator while being in contact with the cartilage. The controller controls the driving power output from the output unit so that the predetermined portion of the cartilage is heated to a temperature of 120° C. or higher within 2.2 seconds.

Abstract: An ultrasonic surgical includes an output unit, a transducer, a probe, an excision unit, and, a controller. The output unit generates a driving power. The transducer is connected to the output unit. The transducer converts the driving power into ultrasonic vibration. The probe transmits the ultrasonic vibration. The excision unit is provided in the probe. The excision unit is in contact with a predetermined portion of the cartilage. The excision unit heats the predetermined portion of the cartilage by ultrasonic vibration converted based on the driving power. The excision unit excises the cartilage by receiving pressure by an operator while being in contact with the cartilage. The controller controls the driving power output from the output unit so that the predetermined portion of the cartilage is heated to a temperature of 120° C. or higher within 2.2 seconds.

Abstract: In an arthroendoscopical surgical method, a resection target area, which is emphasized by fluorescence with use of a fluorescent agent under excitation light, is identified on a meniscus, and a resection line or an imaginary resection line is drawn. Using an ultrasonic treatment tool and an arthroscope, the resection target area is resected by a probe which generates ultrasonic vibrations, based on the resection line or imaginary resection line under visible-light illumination, and an inclined resection surface is formed.

Abstract: A treatment method is a treatment method for cutting cartilage of a human body by an ultrasonic device including a cutting section that ultrasonically vibrates. The treatment method includes cutting the cartilage with a product of an amplitude of the cutting section and a pressing force for pressing the cutting section against the cartilage being 100 (N·?m) or larger.

Abstract: An arthroscopical surgical method using an ultrasonic treatment device for a joint includes: transmitting ultrasonic vibration to a treatment portion of the ultrasonic treatment device, removing an injured region of an articular cartilage so that a subchondral bone is exposed, and forming a cartilage edge which is nearly angled at 90° with the exposed surface of the subchondral bone to form a pool-shaped depression; forming a hole which pierces up to a cancellous bone of the subchondral bone through the depression, and scratching blood vessels in the cancellous bone; causing bleeding from the blood vessels so that blood is retained in the depression via the hole.

Abstract: In an arthroendoscopical surgical method, a resection target area, and a freshening treatment area which becomes repair surfaces with bleeding, are identified, and a resection line and a freshening line are drawn on a tear site in a meniscus, which is emphasized by fluorescence with use of a fluorescent medicine under excitation light. Using an ultrasonic treatment tool and an arthroscope, the resection target area is resected by a probe which generates ultrasonic vibrations, based on the resection line and freshening line under visible-light illumination. Thus, an inclined resection surface is formed, and planar repair surfaces with bleeding are joined and repaird.

Abstract: In an arthroendoscopical surgical method, a resection target area, which is emphasized by fluorescence with use of a fluorescent agent under excitation light, is identified on a meniscus, and a resection line or an imaginary resection line is drawn. Using an ultrasonic treatment tool and an arthroscope, the resection target area is resected by a probe which generates ultrasonic vibrations, based on the resection line or imaginary resection line under visible-light illumination, and an inclined resection surface is formed.

Abstract: In An energy treatment system, a judgment section judges whether a vicinity of a treated target, with which an end effector is in contact, is filled with a liquid, in a state that the end effector is in contact with the treated target and a driving current is being output from an output section. In the energy treatment system, a controller executes at least one of stopping an output of the driving current from the output section and issuing an alert to an effect that the liquid is not filled, based on a fact that the judgment section judged that the vicinity of the treated target is not filled with the liquid.