| 摘要 |
<p>An apheresis system (10) is disclosed which may include a separation chamber (20); a suspension flow path which communicates at one end with the separation chamber and includes a connector (16) at the other end for connecting to a source of cellular suspension; an anticoagulant flow path which communicates at one end with the suspension flow path and includes a connector (26) at the other end for connecting to an anticoagulant source (22); and a return flow path which communicates at one end with the separation chamber and communicates at the other end with a connector (18) for connection directly to the suspension source or to the suspension flow path for returning one or more suspension components to the source. The anticoagulant flow path includes a flow restriction, such as an internal flow restriction, which limits the free flow of anticoagulants into the suspension flow path while preferably not completely stopping the flow of anticoagulant. The restriction may take various forms, but the preferred construction comprises a tubing segment (49) of reduced inside diameter, providing resistance to the free flow of anticoagulant in the event of operator error or mechanical failure.</p> |
