DERUNTZ, OTTO DANIEL,FOCHT, KENNETH ALLEN,JACOBS, ALEXANDER THOMAS,JOHANSEN, ELIZABETH WHITNEY,JUDSON, JARED ALDEN
申请号：
PL04778024
公开号：
PL1656170T3
申请日:
2004.08.09
申请国别(地区):
PL
年份:
2019
代理人:
摘要：
A medication dispensing apparatus that provides a mechanical advantage. During dose preparing, a nut rotating element ( 410 ) and a screw element ( 368 ) are in a first axial arrangement such that a screwing motion of the nut rotating element and screw element relative to the apparatus housing that moves the elements a first axial distance from a home position screws a nut ( 364 ) along a drive member threaded shaft ( 362 ) a second axial distance different than the first axial distance. During dose dispensing, the nut rotating element and the screw element are in a second axial arrangement, whereby a screwing motion of the screw element relative to the housing back toward the home position advances a plunger ( 366 ) in the distal direction to axially advance the nut and thereby the drive member and a fluid container piston to dispense medicine.
