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IMPROVED NEEDLE TIP FOR SURGICAL INSTRUMENT
专利权人:
发明人:
MORLET NIGEL
申请号:
IN9274/DELNP/2012
公开号:
IN2012DN09274A
申请日:
2012.10.26
申请国别(地区):
IN
年份:
2014
代理人:
摘要:
A needle (10) for a surgical instrument for removal of diseased or unwanted tissue comprises a hollow elongate needle shaft (12) having a needle tip (14) for cutting tissue at a distal end of the needle shaft (12). The needle tip (14) is flared in at least one plane and has a flattened posterior lip (16) and a curved anterior lip (18) to produce a substantially D shaped tip mouth (20) in a plane that is substantially orthogonal to a central longitudinal axis C O C (the needle axis) of the needle (10). A major axis A A of the tip mouth (20) is larger than an outer diameter of the needle shaft 12 and a minor axis B B is smaller than the major axis A A . The asymmetry of the tip mouth provides improved cutting action during phacoemulsification.
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中国工程科技知识中心
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http://www.ckcest.cn/home/

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