| 摘要 |
PROBLEM TO BE SOLVED: To provide instruments and cannula or port assemblies for the performance of surgical procedures, particularly including laparoscopic procedures entirely through the umbilicus. SOLUTION: A laparoscopic port unit includes three cannulas each extending at an acute angle relative to a base. The cannulas are flexible for receiving respective angulated laparoscopic instruments. The cannula unit is rotatingly received in a port holder for rotation about a longitudinal axis of the holder, the holder being disposable in an opening in a patient's skin. COPYRIGHT: (C)2011,JPO&INPIT
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