Patent ID: 8690860

Claim:
An intravenous infusion tubing fitment, said tubing fitment comprising: a body which defines: a first inlet configured for coupling with a first segment of tubing; a first outlet into a pressure dome; a second inlet from said pressure dome; and a second outlet configured for coupling with a second segment of tubing; a rotatable knob coupled with said body, wherein said knob defines an expansion opening within a surface of said knob; and a pressure dome formed of a flexible elastomeric material, said pressure dome seated within said knob to define a fluid flow path between said first outlet and said second inlet, and said pressure dome configured to expand through said expansion opening in response to fluid pressure in said fluid flow path, said pressure dome having an annular wall that defines a cavity; a vane extending radially inward from said annular wall into said cavity of said pressure dome toward an axis of rotation of said knob, wherein said vane is configured to variably regulate flow through said fluid flow path in response to rotation of said knob as it moves between a first position wherein said vane fully blocks fluid flow through said fluid flow path and a second position wherein said vane does not block fluid flow through said fluid flow path.