| 摘要 |
<p>A clamp and related method provides for a stable fluid flow rate through a flexible tubing. The clamp comprises a body having an anvil and a tube-constricting cam that cooperates with the anvil to pinch together diametrically opposed sections of the tubing to provide a reduced flow passageway. The cross-sectional area of this passageway, and hence the fluid flow rate, is varied by rotating the cam to change the transverse extent of the pinched off portions. The reduced flow passageway is constrained at each adjustment of the clamp to prevent variations in flow rate due to displacement of the material of the tubing wall.</p> |
