Importance

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Abstract

A medical apparatus includes a trocar assembly including a cannula and a trocar, wherein (1) the cannula has a lumen defined therein, (2) the trocar is positionable between a first trocar position and a second trocar position, (3) the trocar is positioned within the lumen of the cannula when the trocar is positioned at the first trocar position, and (4) the trocar is completely removed from the lumen of the cannula when the trocar is positioned at the second trocar position. The medical apparatus also includes a sleeve having a passageway extending therethrough, and a number of sealing members extending therefrom, wherein (1) the cannula is positionable between a first cannula position and a second cannula position, (2) the cannula is positioned within the passageway of the sleeve when the cannula is positioned at the first cannula position, and (3) the cannula is completely removed from the passageway of the sleeve when the cannula is positioned at the second cannula position. The medical apparatus further includes an actuator secured to the sealing members and having a chamber defined therein, the actuator further defining a port through which fluid may be advanced into or withdrawn from the chamber. A medical procedure utilizing the medical apparatus is also disclosed.

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First Claim