Patent ID: 8257286

Claim:
A tube set for use in making discriminating fluid connection between a source of fluid and a fluid receiving object, the tube set comprising medical tubing, a first connector in sealing connection with the tubing at a first end thereof, the first end of the tubing sealing with a first end of the connector, the first connector including at least one sealing surface and at least one non-sealing surface, the non-sealing surface being located closer to a free end of the first connector than the sealing surface, the non-sealing surface being sized and shaped for engaging a sealing surface of another connector simultaneously at least at three points and at a second end of the connector opposite the first end, each point being spaced at least 90 degrees from the other two points, the engagement between the non-sealing surface of the first connector and the sealing surface of said another connector preventing the formation of a fluid tight seal between the tubing and the source of fluid, the at least one non-sealing surface comprising at least one longitudinal channel in the connector at the second end of the connector, the channel having a length greater than a width of the sealing surface of said another connector that prevents the fluid tight seal with the sealing surface, the at least one longitudinal channel having a closed bottom located for opposing the sealing surface of said another connector upon engagement of the first connector with said another connector.