Abstract:
The disclosed technology is directed to a treatment tool having a blade. The blade includes a treatment surface configured to engage with a treatment target. A heater is configured to be coupled to the blade. The heater includes respective first and second heat generating surfaces each of which extending in a direction transverse to the treatment surface. Respective first and second thermally conductive members each of which is interposed between the respective first and second heat generating surfaces and the blade so as to thermally engage the respective first and second heat generating surfaces and the blade to one another. The respective first and second thermally conductive members includes respective first and second thermal conductivity anisotropies each of which being higher in longitudinal directions of the blade and each of which being lower in widthwise directions of the blade that are transverse to the longitudinal directions.
Abstract:
A treatment system includes a treatment tool and an energy source apparatus used to supply electrical energy to the treatment tool. The treatment tool includes a heater and bipolar electrodes to grip a treatment target. The energy source apparatus includes a processor to control the output to the bipolar electrodes and the heater, respectively. The processor directs the output to the bipolar electrodes and detects an initial value of the impedance of the treatment target. The processor determines whether or not the impedance has reached a minimum value and then retrieves a parameter that is detected before the minimum value of the impedance is detected. The processor performs a first process and/or a second process based on the acquired parameter after the minimum value is detected. The first process determines whether or not the output to the heater is required. The second process sets a target value.
Abstract:
A treatment device includes, a probe that conveys ultrasonic vibration and a high-frequency current; a treatment section that comprises a first treatment surface provided at a distal end of the probe for treating body tissue and a second treatment surface opposed to the first treatment surface, and treats the body tissue with the ultrasonic vibration and the high-frequency current conveyed to the first treatment surface and the second treatment surface via the probe; and an electrically-insulating coating portion that covers at least one of the first treatment surface and the second treatment surface.
Abstract:
A coating material and a medical device. The medical device having an end effector and a coating to cover the end effector. The coating having one or more of: a plurality of hollow particles; and projections and depressions.
Abstract:
In an ultrasonic probe, a curved portion gravity center of a probe curved portion located on a first perpendicular direction side with respect to a longitudinal axis. A boundary position between a probe relay portion and a probe main body portion is located on a distal side with respect to a reference antinode position which is located most distally among antinode positions of a longitudinal vibration located on a proximal direction side with respect to the probe curved portion. By a cross-section changing portion located at the boundary position, a cross section gravity center in a cross section of the probe relay portion perpendicular to the longitudinal axis is away from the longitudinal axis toward a second perpendicular direction opposite to the first perpendicular direction.
Abstract:
A treatment device includes a probe having a treatment portion to treat a biological tissue by using the ultrasonic vibration generated in an ultrasonic transducer; an action portion being able to be close to and away from the treatment portion and including a pressing portion that presses the biological tissue to the treatment portion; and a vibration damping portion disposed in a part of the pressing portion in a state of facing the treatment portion, moving following the treatment portion to which the ultrasonic vibration is transmitted when abutting on the treatment portion in a state where the ultrasonic vibration is transmitted to the treatment portion, and prevented from being grinded by the treatment portion to which the ultrasonic vibration is transmitted.
Abstract:
A manufacturing method of an ultrasonic generating device includes calculating performance value based on a first electromechanical coupling factor in thickness directions and a second electromechanical coupling factor in diametrical directions for each of existing piezoelectric elements, calculating, for each of temporary conditions, a temporary influence value on the basis of a deviation of temporary amplitude of the ultrasonic vibrations, generated by the supply of the current having the predetermined current value, from a target amplitude in a target condition. The manufacturing method includes selecting the corresponding mounted piezoelectric element to be mounted on each of the element mounting portions from the existing piezoelectric elements so that the sum of actual influence values of all the element mounting portions is within a predetermined range with respect to the target amplitude.
Abstract:
The disclosed technology is directed to a treatment system comprises a power supply apparatus and a treatment instrument configured to communicate electrically with the power supply apparatus so as to perform a treatment on a biological tissue. The treatment instrument includes an end effector that transmits a high-frequency current delivered by a first electrical energy to the biological tissue. An electric element is configured to operate the end effector by being actuated using second electric energy. The power supply apparatus includes a processor configured to receive a stop command to cutoff the supply of the first electric energy and the second electric energy in a state in which the first electric energy and the second electric energy are supplied and determine whether or not the end effector is in contact with the biological tissue based on a parameter related to the first electric energy after receiving the stop command.
Abstract:
A treatment instrument including a heat transmitter that includes a treating surface and an installation surface, a substrate attached to the installation surface, and a heat generator formed on a surface of the substrate. The substrate surface and heat generator together form an uneven surface. First and second adhesion layers formed of a material having thermal conductivity and electrical insulation are provided between the installation surface and the substrate. The first adhesion layer is in close contact with the installation surface, and the second adhesion layer is in close contact with the heat generator and the substrate surface. The second adhesion layer is inserted into a recess in the uneven surface formed by the heat generator on substrate surface so as to increase the contact area between the second adhesion layer and the uneven surface.
Abstract:
A treatment system includes a treatment tool and an energy source apparatus used to supply electrical energy to the treatment tool. The treatment tool includes a heater and bipolar electrodes to grip a treatment target. The energy source apparatus includes a processor to control the output to the bipolar electrodes and the heater, respectively. The processor directs the output to the bipolar electrodes and detects an initial value of the impedance of the treatment target. The processor determines whether or not the impedance has reached a minimum value and then retrieves a parameter that is detected before the minimum value of the impedance is detected. The processor performs a first process and/or a second process based on the acquired parameter after the minimum value is detected. The first process determines whether or not the output to the heater is required. The second process sets a target value.