【摘要】 Ⅰ型白内障超声乳化吸出器由三部分组成.磁致伸缩超声换能器和包括钛针尖在内的半波长变幅杆构成超声乳化头;超声发声器采用动态阻抗桥反馈电路,使发生器的频率能自动跟踪机械谐振频率;灌注吸引系统由两只蠕动泵担任.该机临床试用210例,效果良好.更多还原

【Abstract】 Ultrasonic Phacoemulsifier Aspirator Model I made up of three parts has recently been developed.The handpiece consists of a transdu- cer of the magnetostrictive type and a horn with a titanium tip of about hall a wavelength.The frequency of ultrasonic generator can trace the transducer mechanical resonance frequency with the help of motional bridge feed-back circuits.The irrigation/aspiration system is operated by two peristaltic pumps.The instrument has been clinically used in 210 cases with satisfactory results.更多还原