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ENSEMBLES TRANSDUCTEUR ET AIGUILLES À ULTRASONS FORMÉS DE MATÉRIAUX NON MÉTALLIQUES OU D'UNE COMBINAISON DE MATÉRIAUX
专利权人:
Bausch & Lomb Incorporated
发明人:
申请号:
EP16783613.9
公开号:
EP3291778A4
申请日:
2016.04.13
申请国别(地区):
EP
年份:
2019
代理人:
摘要:
A phacoemulsification needle includes a hub for connection to an ultrasonic handpiece. An elongated shaft is formed with the hub and extends from the hub. A distal end of the shaft breaks-up tissue when the distal end is caused to be vibrated by the handpiece. At least a distal portion of the shaft is formed of a material that has properties providing advantages compared to a metal needle. Example properties include a substantially lower density, a substantially higher electrical resistivity, a substantially lower thermal conductivity, a substantially lower mechanical lateral stiffness, a substantially higher efficiency of converting electrical energy powering the handpiece into motion of the distal end, a substantially lower acoustical impedance, a substantially higher Poisson's ratio, and a substantially higher mechanical gain.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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