A tubular medical set as main blood flow tubing, a connected, flexible branch tube, a flow restriction device to suppress pressure pulses. The device is positioned to control flow through the branch tube. The flow restriction device permits substantially free, unhindered flow from the branch tube to the main blood flow tubing, while significantly restricting, but not completely blocking, flow from the main blood flow tubing to the branch tube.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation in part of application Ser. No. 09/432,555, filed Nov. 3, 1999, now U.S. Pat. No. 6,517,508.
