Patent application number | Description | Published |
20090216257 | SURGICAL TREATMENT APPARATUS - A surgical treatment apparatus includes a first unit including a first vibration transmission member and a first holding member, a second unit including a second vibration transmission member, a second holding member, and an elastic member provided between the second vibration transmission member and the second holding member, configured to be deformed in accordance with a relative arrangement of the second vibration transmission member and the second holding member with respect to the axial direction to give the second vibration transmission member an elastic force in the axial direction, and an adjustment coupling mechanism to couple the first unit and the second unit with each other, arrange the first vibration transmission member and the second vibration transmission member coaxially to abut the end portion of the first vibration transmission member and the end portion of the second vibration transmission member against each other, and adjust a relative arrangement of the first holding member and the second holding member with respect to the coaxial direction to be constant to adjust a deformation amount of the elastic member to be constant. | 08-27-2009 |
20090275863 | SURGICAL TREATMENT APPARATUS - A handpiece of a surgical treatment apparatus includes a vibrating portion having an axial length being a length corresponding to one wavelength or above of the ultrasonic vibration, the vibrating portion includes a vibration generating portion formed on a proximal-end side of the vibrating portion and having an axial length being a length corresponding to a quarter wavelength of the ultrasonic vibration and an outside diameter, and a vibration transmitting portion formed on a distal-end side of the vibrating portion and having an axial length being a length corresponding to a three-quarter wavelength or above of the ultrasonic vibration, the vibration transmitting portion includes a reduced diameter portion arranged on the proximal-end side of the vibration transmitting portion, and an extending portion arranged on the distal-end side of the vibration transmitting portion and having an outside diameter smaller than the outside diameter of the vibration generating portion, and the operating portion is arranged in an accommodation space formed on a radially outer side of the extending portion along the extending portion in the handpiece. | 11-05-2009 |
20100168741 | SURGICAL OPERATION APPARATUS - A surgical operation apparatus includes a probe to which ultrasonic vibration is transmitted, and a flat plate-like blade which is formed at a distal end part of the probe, and can simultaneously output ultrasonic vibration and a high-frequency current, wherein the blade includes a contact area reduction part for reducing an area of contact with the living tissue to thereby increase a current density of the high-frequency current. | 07-01-2010 |
20120101493 | SURGICAL TREATMENT APPARATUS - A surgical treatment apparatus includes a receptacle which is configured to abut onto a treatment section so that a predetermined clearance is formed between an electrode section and the treatment section when a grip member is closed relative to the treatment section. The surgical treatment apparatus includes a regulating section which is provided in the grip member so that a closing-direction end located on a closing-direction side of the grip member does not protrude from the receptacle toward the closing direction, the regulating section being made of a material harder than the receptacle, and a handle unit configured to operate the grip member so that the regulating section is closed up to a position where the regulating section contacts the treatment section except when the receptacle contacts the treatment section. | 04-26-2012 |
20130218185 | ULTRASONIC TREATMENT DEVICE - An ultrasonic treatment device includes a probe in which a hole-shaped portion, being opened at a first opening position placed at a distal end portion of the probe and a second opening position placed at an outer peripheral portion of the probe and allowing the first opening position and the second opening position to communicate with each other, is formed. The ultrasonic treatment device includes a path which is extended in the hole-like portion from the first opening position to the second opening position along the longitudinal axis, and which is extended to an outside of the probe from the second opening position, and the path being extended to the extending position of the fixed handle toward the handle extending direction in the fixed handle. | 08-22-2013 |
20140194868 | SURGICAL APPARATUS - A surgical apparatus includes: a treatment section treating a living tissue; an energy generation section generating energy for providing ultrasound vibration or high-frequency current to the treatment section; a probe provided in the treatment section, for performing the ultrasound vibration; a liquid feeding unit supplying a liquid; a liquid feeding conduit feeding the liquid; a liquid feeding port, provided in the treatment section, for feeding the liquid toward the probe to feed the liquid to between the living tissue and the treatment section; a liquid feeding unit supplying the liquid to the liquid feeding conduit; an impedance detection section detecting an impedance of the living tissue is in contact with the treatment section; and a control section that controls the liquid feeding unit, after the stoppage of the output of the energy, so that as the impedance is larger, a predetermined period of time or a predetermined amount increases. | 07-10-2014 |
20140194871 | SURGICAL DEVICE - A surgical apparatus includes: a treatment section treating a living tissue; an energy generation section providing high-frequency current to the treatment section; a liquid feeding conduit feeding a liquid to the living tissue; a suction conduit suctioning the liquid; an energy control section that outputs a high-frequency output control signal for controlling the energy generation section; a first pump drive section that feeds the liquid from the liquid feeding conduit while the high-frequency current is output, according to a command of the high-frequency output control signal, and stops feeding of the liquid, according to a command of the high-frequency output control signal; and a second pump drive section that suctions the liquid from the suction conduit for a predetermined period of time or in a predetermined amount, according to a command for stopping the high-frequency output control signal, and stops suction of the liquid after the suction. | 07-10-2014 |
20140324084 | TREATMENT ASSEMBLY, TREATMENT DEVICE AND MANUFACTURING METHOD OF TREATMENT DEVICE - A treatment assembly includes: a probe which includes a treatment section at a distal end portion thereof; an inner tube which includes a distal end and into which the probe is inserted in a state that the treatment section of the probe protrudes toward a distal end side with respect to the distal end; an opening which is provided in a side surface of the inner tube and which allows an inner side of the inner tube to communicate with an outer side of the inner tube; a support section which is arranged on the inner side of the inner tube from the outer side of the inner tube through the opening and which is configured to support the probe with respect to the inner tube; and an outer tube which covers the outer side of the inner tube and which is configured to fix the support section. | 10-30-2014 |
20150051516 | TREATMENT INSTRUMENT USING ULTRASONIC VIBRATIONS - In a treatment instrument, a load force center of a load force, which is a sum of gravity acting on the treatment instrument and an external force caused by a connected cable, is positioned between two support members of a handle section, and a location of introduction of the cable is disposed in a manner to extend therebetween. In the treatment instrument, an ultrasonic vibration element unit is attached and rotatably coupled to a handle unit, a power receiving section or a power supply section at the coupling constitutes a rotary electrode structure by a cylindrical electrode and a terminal electrode, and power from an outside is received and transmitted between the handle unit and the ultrasonic vibration element unit. | 02-19-2015 |