Patent Number: 8,876,710

Title: Surgical portal apparatus with expandable cannula

Abstract: A surgical portal apparatus includes a housing and a portal member extending from the housing. The portal member is dimensioned for insertion within tissue to access an underlying tissue site and defines a longitudinal axis. The portal member includes an outer wall having a longitudinal opening for reception of a surgical object. The outer wall includes first and second peripheral segments extending along the longitudinal axis. The first peripheral segment includes a substantially rigid material and the second peripheral segment includes a substantially elastomeric material. The first peripheral segment and the second peripheral segment cooperate to permit the outer wall to radially expand from a first condition where the outer wall defines a first internal dimension to a second condition where the outer wall defines a second internal dimension greater than the first internal dimension upon insertion of the surgical object.

Inventors: Ferreira; Daniel P. (Milford, CT)

Assignee: Covidien LP

International Classification: A61B 1/32 (20060101)

Expiration Date: 2019-11-04 0:00:00