A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/32 (2006.01) A61N 7/02 (2006.01)
Patent
CA 2471296
This invention relates to an improved method and apparatus (10) for generating profiled pulses of ultrasonic frequency vibratory energy at a distal surface of an ultrasonic applicator (13) of an ultrasonic surgical instrument for application to tissues of a patient, including the providing of a profiled pulse signal with a first profile and a maximum magnitude (20) during a first time portion (21) and a second profile and a minimum magnitude (22) during a second time portion (23), the second time portion (23) being greater than or equal to the duration of the first time portion (21), the first time portion being (21) between one millisecond and fifty milliseconds in duration, and the maximum magnitude in the range between two and twenty times the minimum magnitude.
L'invention concerne un procédé et un appareil améliorés de production d'impulsions d'énergie vibratoire ciblées à fréquences ultrasonores sur la surface distale d'un instrument chirurgical ultrasonore devant être appliqué sur les tissus d'un patient. Ce procédé consiste à attribuer à un signal d'impulsions ciblées un premier profil et une amplitude maximum au cours d'une première période, et un second profil et une amplitude minimum au cours d'une seconde période. La seconde période est supérieure ou égale à la durée de la première période et la première période se situe entre une milliseconde et cinquante millisecondes. L'amplitude maximum est de deux à vingt fois l'amplitude minimum.
Robic
Sound Surgical Technologies Llc
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