Importance

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Abstract

A valve mechanism for a suction or irrigation instrument, that includes a first tubular housing provided with at least one first distal conduit assembly for coupling to the instrument, and a conduit for communicating with a suction or irrigation source. The conduit assembly includes at least first and second proximal conduits, and a first piston movably arranged in the first tubular housing between first and second positions. The first piston has a first through-opening intersecting the longitudinal axis of the first piston, wherein upon movement of the first piston into the first position the first through-opening opens a pathway between the at least one first distal conduit and the first proximal conduit, and upon movement of the first piston into the second position the first through-opening opens a pathway through the at least one first distal conduit and the second proximal conduit.

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First Claim