Patent ID: 11911070
Assignee: COVIDIEN LP
Field: Chemical engineering (Chemistry)
Classification: CPC A  B | IPC A  B

Claim 0:
1. A surgical cannula assembly comprising:
a seal housing including at least one seal configured to engage a surgical instrument in a sealing relation, the seal housing including a distal housing component defining a plurality of flow channels radially spaced relative to a central axis of the seal housing, the seal housing further including an intermediate housing component configured for at least partially enclosing an object seal, the intermediate housing component defining a plurality of flow openings that communicate with the plurality of flow channels;
a cannula extending distally from the seal housing; and
a filter attachable to the seal housing, the filter disposed in a flow path extending between a distal end of the cannula and an ambient environment through the plurality of flow channels, the filter being proximal of the at least one seal.