| 摘要 |
A surgical portal apparatus includes a portal housing, an elongated portal member connected to the portal housing and depending therefrom, and a seal member comprising a resilient material and being mounted to the portal housing. The portal housing and the portal member have an axial bore for reception and passage o f a surgical object. The seal member includes leading and trailing faces and has inner portions defining a passage to permit passage of a surgical object. One of the leading and trailing faces defines a plurality of recessed cells formed within interconnected struts. T he interconnected struts are relatively flexible to flex upon radial offset manipulation of the object to permit corresponding movement of the passage while substantially maintaining a seal about the surgical object. At least some of the recessed cells define a generally rectangular arrangement. Preferably, the leading end face of the seal member has the recessed cells.
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