Ultrasonic medical instrument
Реферат: 1445469 Ultrasonic insert SOC MINERVE SA 23 Oct 1973 49369/73 Heading A5R An ultrasonic instrument comprises a hollow handle 6, a device supported in said handle and comprising an ultrasonic transducer and a probe 3 having a bore along the longitudinal axis, defining a fluid flow path, said transducer having a joining stem 2 and a probe holder 2a protruding from said handle 6 for connecting said ultrasonic transducer to said probe 3. probe 3 having a bulbous end 12 with an outlet orifice 12a communicating with said bore, said end 12 producing cavitation in fluid discharged from outlet orifice 12a. The hollow handle defining a fluid flow path for delivery of said fluid to said transducer to cool said transducer a flexible tube 11 being connected between said flow paths in said handle and in said probe. The device comprises a plurality of magnetostrictive reeds 1 connected at one end of the joining stem 2, a hollow sleeve 4 extending over this end of stem 2 and having an orifice 8. Adjacent sleeve 4 is a hollow body 5 with an interior chamber 9 through which stem 2 extends, having an exit channel 10, the flexible tube 11 extending from said channel to an end 3a of the probe. Probe 3 is rigidly fixed to probe holder 2a to ensure mutual action, although probe 3 may be removed and laterally shifted parallel to the axis of joining stem 2. A fluid channel 7 contains leads to a solenoid (not shown), surrounding reeds 1. In alternative embodiments, the buttons end 12 has a plurality of orifices 12a, the probe 3 is fixed with its longitudinal axis inclined to that of stem 2 or alternatively there are orifices, e.g. 8, in sleeve 4.
Medical instrument
Номер патента: US09987026B2. Автор: Katsuhiko Shimizu,Youichirou Kuwano. Владелец: Terumo Corp. Дата публикации: 2018-06-05.