A fluid infusion pump driver device for pumping fluid from the chamber of a disposable cassette. The pump driver includes a reciprocatable plunger which is driven by a stepping motor. The motor and plunger are coupled through a universal joint which provides a threaded connection translating the incremental angular movements of the motor into incremental linear movements of the plunger, and the plunger is coupled directly to the frame through a flexible leaf spring to prevent wear in the threaded connection from generating undue noise or creating accuracy problems.
申请公布号
DE3680886(D1)
申请公布日期
1991.09.19
申请号
DE19863680886
申请日期
1986.10.30
申请人
OXIMETRIX, INC., MOUNTAIN VIEW, CALIF., US
发明人
PASTRONE, GIOVANNI, LOS GATOS CALIFORNIA 95030, US;CHAMNESS, LELAND D., MOUNTAIN VIEW CALIFORNIA 94040, US