Surgical access assembly having pre-filled air chamber
AssigneeCovidien LP
InventorsSabastian K. George, Oksana Buyda
Life of this patent
Estimating the term…
Abstract
A surgical access assembly includes an elongated cannula member having a proximal end portion and a distal end portion, a balloon anchor coupled to the distal end portion of the elongated cannula member, a sleeve of the balloon anchor extending proximally along an outer surface of the elongated cannula member, a chamber defined between the sleeve of the balloon anchor and the outer surface of the elongated cannula member, and a first collar is coupled to the elongated cannula member. The first collar is slidable along the elongated cannula member and engageable with the sleeve of the balloon anchor.
Claims14
A surgical access assembly comprising:
- an elongated cannula member having a proximal end portion and a distal end portion;
- a balloon anchor coupled to the distal end portion of the elongated cannula member, a sleeve of the balloon anchor extending proximally along an outer surface of the elongated cannula member;
- a chamber defined between the sleeve of the balloon anchor and the outer surface of the elongated cannula member;
- and
- a first collar coupled to the elongated cannula member, the first collar slidable along the elongated cannula member and engageable with the sleeve of the balloon anchor.
A method of actuating a balloon anchor of a surgical access assembly comprising:
- sliding a first collar distally along an elongated cannula member of the surgical access assembly, the surgical access assembly including a balloon anchor disposed in a distal region thereof, the balloon anchor having a sleeve extending proximally along an outer surface of the elongated cannula member defining a chamber therebetween;
- and
- engaging the first collar with the sleeve such that a fluid in the chamber is transferred to the balloon anchor thereby expanding the balloon anchor.
Dependencies are inferred from the claim text.