Patent ID: 8613727

Claim:
A trocar adapted to receive an instrument along a working channel, the trocar comprising: a cannula having an axis extending between a proximal end and a distal end; a valve housing having a proximal end having an opening therethrough, and a distal end coupled to the proximal end of the cannula; a valve support having a distal end, a proximal end coupled to the valve housing, and a lumen extending between the proximal end and the distal end; a valve suspended by the valve support along the working channel in proximity to the distal end of the valve support, and in proximity to the distal end of the valve housing; a guidance structure at least partially within the lumen of the valve support for facilitating alignment of the valve with the instrument; and a zero seal disposed in the valve housing along the working channel, wherein the valve support has a floating relationship with the valve housing so that the valve is free to swing in an angular relationship to the axis.