WEBSTER, ROBERT JAMES, III,OKAMURA, ALLISON M.,COWAN, NOAH J.,TAYLOR, RUSSELL H.
申请号：
CA2630061
公开号：
CA2630061C
申请日:
2006.11.15
申请国别(地区):
CA
年份:
2015
代理人:
摘要：
Disclosed is a surgical needle, or active cannula, that is capable offollowing a complex path through cavities and tissue within a patient'sanatomy. The needle has a plurality of overlapping flexible tubes, each ofwhich has a pre-formed curvature and a pre-determined flexibility. Each of theplurality of flexible tubes is selected based on their respective pre¬ formedcurvature and flexibility so that a given overlap configuration causes thecombination of overlapping flexible tubes to form a predetermined shape thatsubstantially matches a desired path through the anatomy. By individuallycontrolling the translation and angular orientation of each of the flexibletubes, the surgical needle may be guided through the anatomy according to thedesired path.
