Olympus Corporation

Yasuo Tanigami

Chie Onuma

Keiko Murasawa

Satoshi Takekoshi

Ken Fujisaki

Kiichiro Sawada

Kazuhiro Yoshida

Takamitsu Sakamoto

Sohei Ueda

Masashi Yamada

Noriko Kuroda

Yusuke Otsuka

Koji Kimoto

Yoshitaka Honda

Kunihide Kaji

Kazue Tanaka

Hideto Yoshimine

Hiroto Nakamura

Hideyuki Kasahara

Norihiro Yamada

Yuji Kishimoto

Takami Shibazaki

Koichiro Watanabe

Tomonori Nagaoka

Ryo Miyasaka

Moe Goto

Kazue Nakajima

Takaaki Igarashi

A heat invasion observation apparatus that observes a heat invasion to a biological tissue, the heat invasion observation apparatus includes a fluorescence image generation circuit configured to obtain an image pickup signal generated by picking up an image of fluorescence generated from a heat invasion area in the biological tissue irradiated with exciting light for exciting a substance contained in the heat invasion area, and generate fluorescence image data based on the obtained image pickup signal. The substance contained in the heat invasion area is a substance generated when the biological tissue is thermally processed.

Heat invasion observation apparatus, endoscope system, heat invasion observation system, and heat invasion observation method

A medical system can include a light source configured to generate excitation light; and a processor including a memory, the processor: controlling energy supplied to an energy device, the light source generating the excitation light to generate fluorescence from the living body tissue heat treated by the energy device; generating a fluorescence image based on an image pickup signal obtained by imaging the living body tissue; and generating a control signal that restricts energy supply to the energy device and output the control signal to the energy control apparatus when a pixel value of at least one pixel in the fluorescence image exceeds a first threshold value.

Medical system, energy control method, and processor

An ultrasonic surgical system includes an ultrasonic transducer, a probe, and at least one circuit. The ultrasonic transducer is designed to ultrasonically vibrate. The probe is coupled to the ultrasonic transducer and is designed to treat a living tissue by the ultrasonic vibration. The circuit performs functions including detecting a pressing force of the probe against the living tissue, calculating a value of a product of the pressing force, an amplitude of the ultrasonic vibration, and a resonance frequency of the probe, comparing the calculated value with a predetermined product value, and generating a predetermined signal based on a result of the comparison.

Ultrasonic surgical system and method of operating ultrasonic surgical system

An ultrasound probe includes a probe body, and a treatment unit. The treatment unit includes: a cutter that is provided at a distal end part of the treatment unit and that cuts the bone according to move of the treatment unit along a longitudinal axis in a state where ultrasonic vibration is being transmitted to the probe body; and a path that is provided in the treatment unit and through which debris of a bone that is cut by the cutter are discharged along the longitudinal axis toward a proximal end side with respect to the cutter. The path includes a first opening that is provided in a distal end surface of the cutter; and a second opening that is provided in a side surface part of the treatment unit, wherein the path allows the first opening and the second opening to communicate.

Ultrasound probe and ultrasound treatment tool

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.

Ultrasonic treatment instrument for articulations, and ultrasonic treatment system for articulations

An ultrasonic surgical instrument includes an ultrasonic transducer configured to vibrate ultrasonically, a probe configured to treat a living tissue by the ultrasonic vibration, a detector configured to detect a pressing force of the probe against the living tissue, a memory configured to store a predetermined value related to a pressing force in accordance with the living tissue, a comparing section configured to compare the pressing force detected by the detector with the predetermined value stored in the memory, and a notification section configured to perform a notification in response to a comparison result obtained by the comparing section.

Ultrasonic surgical instrument and processing method for ultrasonic surgical device

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.

Ultrasonic treatment instrument for articulations, and treatment method thereof

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.

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&#xb0; C. or higher within 2.2 seconds.

Ultrasonic surgical system

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.

Ultrasonic treatment system for joint

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&#xb7;&#x3bc;m) or larger.

Treatment method

A method for treating cartilage of a human being includes, bringing an excision unit into contact with a predetermined portion of the cartilage, heating the predetermined portion of the cartilage to a temperature of 120&#xb0; 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&#xb0; C. or higher while pressing the predetermined portion.

The therapeutic method of an arthroscopic surgery method for osteochondritis dissecans or osteochondral lesion of a talus of the embodiment carries out the cutting treatment safely, without being able to avoid non-treatment target region, being able to reach a treatment target region and doing damage to any peripheral tissues, when performing a treatment since an ultrasonic treatment device is used.

Arthroscopic surgery method for osteochondritis dissecans of talus

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&#xb0; 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&#xb0; C. or higher while pressing the predetermined portion.

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&#xb0; 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&#xb0; C. or higher while pressing the predetermined portion.

Growing community of inventors

Hachioji, Japan

Yasuo Tanigami