| 摘要 |
<p>A flow-control device for medical products comprises two or more tubes (1, 2) associated, in parallel, with a common inlet and common outlet for their connection to the supply line of a substance to be infused, each of the said tubes having a precision gauging element (3, 4), one of which has a much smaller flow than the other or others, respective tube-closure devices (15) being associated with the tube or tubes (1) carrying the larger-capacity gauging elements, to permit optional opening or closure thereof.</p> |
