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:
In a width dimension decrease portion forming a distal end of an ultrasonic probe, a width dimension decreases from a proximal direction toward a distal direction, so that a sectional area perpendicular to a longitudinal axis decreases from the proximal direction toward the distal direction. An intermediary portion continuous between a probe body portion and the width dimension decrease portion includes a width dimension increase portion in which the width dimension increases and a thickness dimension decreases from the proximal direction toward the distal direction at the same time. In the intermediary portion, the sectional area perpendicular to the longitudinal axis does not increase and does not decrease at a higher decrease rate than in the width dimension decrease portion toward the distal direction.
Abstract:
A vibration generating unit includes a proximal side vibration transmitting section extended from a proximal end of the ultrasonic transducer toward a proximal direction. A proximal end of the proximal side vibration transmitting section is placed at a position apart from a reference antinode position toward the proximal direction by an extending dimension equal to an integral multiple of a half wavelength, when the reference antinode position is the closest to the ultrasonic transducer among antinode positions placed on the proximal direction side with respect to the ultrasonic transducer. The vibration generating unit includes an amplitude increasing section increasing an amplitude of the ultrasonic vibration transmitted toward the proximal direction in the proximal side vibration transmitting section.
Abstract:
An inspection probe includes a vibration transmission portion transmitting an ultrasonic vibration along a longitudinal axis, and a vibration damping portion continuous with a distal direction side of the vibration transmission portion. the vibration damping portion damps the ultrasonic vibration by causing vibration energy of the ultrasonic vibration to be lost and converting the lost vibration energy to heat energy in a state that the vibration damping portion vibrates in a manner to follow the vibration transmission portion. An index section of the inspection probe serves as an index indicating a conversion amount to the heat energy in the vibration damping portion.
Abstract:
An ultrasonic treatment device including, a vibration transmitting portion, an inner surface which defines an internal space, a first tube which extends along the longitudinal axis in an internal space, a path portion which is provided on the inner circumferential side of the first tube, and a first spacer which intervenes between the inner surface and the first tube at a node position of the ultrasonic vibration in a longitudinal axis and which supports the first tube so that the outer circumferential surface of the first tube does not contact the inner surface.
Abstract:
A medical heater includes: a substrate having a first plate surface and a second plate surface; and a conductive portion provided on the first plate surface. The substrate is folded back in a state where the first plate surface forms an outer surface in a longitudinal direction of the substrate, the conductive portion includes: a pair of connecting portions to which wiring members are electrically connected; a heat generating portion; and an electric path portion that is connected from the connecting portions to the heat generating portion, and the heat generating portion has a configuration in which a resistance value of the heat generating portion is higher than resistance values of other parts in the conductive portion, and a thickness measurement of at least a part of the heat generating portion is smaller than thickness measurements of other parts in the conductive portion.
Abstract:
A medical heater includes: a heat generating portion that is made of a material containing nickel, the heat generating portion being configured to generate heat when energized; and a passivation film that is made of nickel fluoride, the passivation film being configured to cover at least a part of a surface of the heat generating portion.
Abstract:
An energy treatment instrument including a first grasping piece including a base plate located on an inner side of the first grasping piece, and a second grasping piece configured to open and close with respect to the first grasping piece. A first opposing face is located on an outer surface of the base plate and on the inner side of the first grasping piece and facing the second grasping piece. A second opposing face is located on an outer surface of the second grasping piece and facing the first grasping piece. A heat generator is embedded inside the first grasping piece and includes a metal component, where the heat generator generates heat based on a current flowing through the metal component that is to the first opposing face.
Abstract:
A surgical treatment device includes: a treatment portion including a treatment surface that treats biological tissue by supplying at least one type of energy; a heat insulation coating that covers at least a part of an outer surface of the treatment portion; and a protection coating that is provided in a manner to cover the heat insulation coating and is higher in coating strength than the heat insulation coating.
Abstract:
In an end effector of a high-frequency treatment instrument, a coating covers an outer surface of an electrode, and formed from a conductive mixture obtained by mixing a non-conductive material and a conductive material. The conductive material contained in the mixture includes first elements and second elements, and each of the first elements has a shape with a higher flatness quotient than each of the second elements.