Patent ID: 8852085

Claim:
A surgical system comprising: a first instrument defining a fluid flow channel; a second instrument receivable by the first instrument fluid flow channel; and a valve coupled to the first instrument fluid flow channel to control fluid flow through the first instrument fluid flow channel; wherein the valve includes a housing and a body moveable within the housing, the body defining an opening and being moveable within the housing between a first position in which the opening is not aligned with the first instrument fluid flow channel, and a second position in which the opening is aligned with the first instrument fluid flow channel, and wherein the opening provides a first predefined impedance to fluid flow through the valve when the body is in the first position and the opening provides a second predefined impedance to fluid flow through the valve when the body is in the second position, and wherein fluid is permitted to flow through the opening defined by the body of the valve to and through the first instrument fluid flow channel when the body is in the first position and when the body is in the second position.