MAGNETICALLY ACTUATED FLUID PUMP AND PULSE REDUCING APPARATUS

摘要

An integrated fluid management system is provided with capability to deliver precise flow rate and fluid dosing capability over a wide range of operator set parameters. A magnetically actuated pump head is low cost, affords simple installation, and is potentially disposable. Multiple pump heads may be docked to a single drive module or control module to provide concurrent metering of multiple fluids and to maintain precise volume ratio of the multiple fluids to one another. The magnetic pump head may be integrated with radio frequency Identification devices (RFID) and Hall Effect Sensors to provide customized control and fail safe operation. A pressure pulse reducing apparatus improves pump delivery accuracy and may employ a sensor to monitor pump operation and send an error message to indicate a malfunction has occurred.

主权项

1. A fluid pumping apparatus comprising:
a) a shaft which is operative to rotate at least one drive magnet; b) at least one pump head including a driven magnet carried by a carriage, said carriage reciprocally, linearly movable in a pump head housing, said housing provided with an inlet port, an outlet port and associated inlet and outlet check valves; and c) a drive module housing, including structure for receiving said pump head and arranged such that said driven magnet is located in proximity to the drive magnet so as to create alternating attracting and repelling forces between the drive and driven magnets as the drive magnet is rotated about the axis of said shaft.