Ultrasonic surgical instrument and processing method for ultrasonic surgical device
AssigneeOlympus Corporation
InventorsYasuo Tanigami, Moe Goto, Koji Kimoto
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Abstract
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.
Claims11
An ultrasonic surgical instrument comprising:
- 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 product of a pressing force when the living tissue is a cartilage and an amplitude of the vibration of the ultrasonic transducer;
- a comparing circuit configured to compare the pressing force detected by the detector with the predetermined value stored in the memory;
- and
- a notification circuit configured to perform a notification in response to a comparison result obtained by the comparing circuit,
- wherein a lower limit value of the predetermined value is 100 (N·μm), which is a value at which the cartilage is melted to excise, and an upper limit value of the predetermined value is 300 (N·μm), which is a value at which heat invasion due to frictional heat is suppressed.
An ultrasonic surgical instrument comprising:
- 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 product of a pressing force when the living tissue is a cartilage and an amplitude of the vibration of the ultrasonic transducer;
- and
- an output generating circuit configured to control the amplitude of the ultrasonic vibration generated by the ultrasonic transducer so that the pressing force detected by the detector becomes a predetermined value of a pressing force in accordance with the living tissue,
- wherein a lower limit value of the predetermined value is 100 (N·μm), which is a value at which the cartilage is melted to excise, and an upper limit value of the predetermined value is 300 (N·μm), which is a value at which heat invasion due to frictional heat is suppressed.
Dependencies are inferred from the claim text.