Patent ID: 7753879
Filing Date: 2010-07-13
Classification: A61M,B05C

Abstract:
1. A disposable, wearable medicine dispensing device comprising a housing; means for attaching said housing to the skin of a user of said device, a medicine container disposed in the housing; a flexible piston rod having an outer thread pattern on at least a portion thereof, wherein the piston rod moves from a flexed configuration in the housing toward a forward longitudinal direction to force medicine from the medicine container; a ratchet wheel having an inner thread pattern on a central aperture to mate with the outer thread pattern of the flexible piston rod such that rotation of said ratchet wheel in a forward rotational direction displaces the flexible piston rod in the forward longitudinal direction; a pivotable body disposed in the housing and adjustable between a forward position and a reset position, wherein adjustment of the pivotable body from the reset position to the forward position causes the ratchet wheel to rotate in said forward rotational direction; a spring device to bias said pivotable body toward the forward position; and an actuation system to controllably adjust the pivotable body toward the reset position, the actuation system comprising: