Mechanical drive system for a medication infusion system

Details Mechanical drive system for a medication infusion system Mechanical drive system for a medication infusion system

A - Human Necessities

61

M

128/91

A61M 5/14 (2006.01) F04B 7/00 (2006.01) F04B 9/04 (2006.01) F16H 25/12 (2006.01)

Patent

CA 1319069

MECHANICAL DRIVE SYSTEM FOR A MEDICATION INFUSION SYSTEM ABSTRACT OF THE DISCLOSURE A mechanical drive system for use in driving a disposable cassette containing a reciprocating fluid pump and active valves from a main pump unit is disclosed which utilizes a single power module cam to drive both the reciprocating pump and the valves. By using a unitary power module cam, the system completely eliminates the possibility of a timing error between the operation of the reciprocating pump and the valve. A one-way clutch is used to prevent the system from slipping into a reverse operation, and the operation of the valve actuators prevents the possibility of free flow through a cassette installed onto the main pump unit.

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