Patent ID: 7819957

Claim:
A filter for use during and after surgical procedures to receive the surgical waste gas generated during a medical procedure comprising: a trocar for venting a surgical waste gas from a body cavity, wherein the surgical waste gas includes both moisture and carbon monoxide; a particle filter connected to said trocar; an inlet for receiving a surgical waste gas and an outlet for discharging the surgical waste gas; a carbon monoxide filter media positioned to cause the surgical waste gas to flow therethrough thereby removing carbon monoxide from the surgical waste gas before the surgical waste gas is discharged into the operating room; a moisture absorbent filter media for removing moisture from the surgical waste gas, said moisture absorbent material located downstream of said inlet and upstream of said carbon monoxide filter media to absorb moisture in the surgical waste gas prior to the surgical waste gas flowing through said carbon monoxide filter media to thereby inhibit moisture saturation of said carbon monoxide filter, said moisture absorbent material contained on one side by a first gas permeable screen and on an opposite side by a second gas permeable screen; a carbon filter media, said carbon filter media located upstream of said carbon monoxide filter media for removal of odors from the surgical waste gas prior to removal of moisture from the surgical waste gas.