An instrument for aspirating and irrigating unwanted material from all regions of the capsule of the eye, especially suitable for cataract removal, including an instrument having a hooked tip portion at the operative end thereof. The hooked tip portion is capable of being deformed into a straightened...http://www.google.com.tw/patents/US5084012?utm_source=gb-gplus-share專利 US5084012 - Apparatus and method for irrigation and aspiration of interior regions of the human eye
