公开(公告)号：AU2003237402A1

公开(公告)日：2004-01-06

申请号：AU2003237402

申请日：2003-06-05

Applicant: BAXTER INT

Inventor： JACOBSON JAMES D ,  BUI TUAN ,  GARCHOW STEPHEN R ,  YARDIMCI ATIF ,  SLEPICKA JAMES S

IPC: A61M5/168 ,  A61M5/172

Abstract: A fluid delivery system having a closed-loop control process for delivering a medical fluid to a patient. A fluid infusion system includes a pump for delivering a fluid to a patient via an administration tube. A flow sensor associated with the administration tube provides an indication of the actual flow rate of fluid in the administration tube. Such a flow sensor may comprise a positive displacement flow sensor constructed using micro-fabrication and/or micro-molding techniques. A reader reads the actual flow rate signal and provides an indication to a controller for controlling the pump. The flow rate information can also be used for providing status information, such as the existence of a blockage in the fluid delivery system.