Medical ultrasound system and handpiece and methods for...

A - Human Necessities – 61 – B

Patent

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A61B 8/14 (2006.01)

Patent

CA 2625876

Several embodiments of medical ultrasound handpieces are described each including a medical ultrasound transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system includes a medical ultrasound handpiece having a medical ultrasound transducer assembly and includes an ultrasonically-vibratable medical-treatment instrument which is attachable to a distal end of the transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system has a handpiece including a medical ultrasound transducer assembly and including a housing or housing component surrounding the transducer assembly. A method for tuning a medical ultrasound handpiece includes machining at least a distal non-threaded portion of an instrument- attachment stud of the transducer assembly to match a measured fundamental frequency to a desired fundamental frequency to within a predetermined limit. A method for making a medical ultrasound transducer assembly determines acceptable gains for gain stages of the transducer assembly.

L~invention comprend plusieurs modes de réalisation d'instruments à main médicaux à ultrasons comportant chacun un ensemble de transducteur médical à ultrasons. L~invention concerne un mode de réalisation d'un système médical à ultrasons, caractérisé en ce que le système médical à ultrasons contient un instrument à main médical à ultrasons doté d~un ensemble de transducteur médical à ultrasons et comporte un instrument de traitement médical à vibrations par ultrasons que l~on peut fixer à une extrémité distale de l'ensemble de transducteur. L~invention concerne un mode de réalisation d'un système médical à ultrasons, caractérisé en ce que le système médical à ultrasons possède un instrument à main comprenant un ensemble de transducteur médical à ultrasons et comprenant un logement ou un composant de logement entourant l'ensemble de transducteur. Un procédé de réglage d~un instrument à main médical à ultrasons consiste à usiner au moins une portion distale non filetée d~un goujon de fixation d~instrument de l'ensemble de transducteur pour faire correspondre une fréquence fondamentale mesurée et une fréquence fondamentale désirée dans une limite prédéterminée. Un procédé de fabrication d~un ensemble de transducteur médical à ultrasons détermine des gains acceptables pour les phases de gain de l'ensemble de transducteur.

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