Patent ID: 8574215
Filing Date: 2013-11-05
Classification: A61M,F04B,F05C

Abstract:
1. A method of using an apparatus having a housing to deliver a fluid medication to a user, comprising the steps of: subjecting a shape memory wire within the housing to a first material condition, wherein the wire is capable attaining at least two difference material conditions, a first material condition below a transformation temperature and a second material condition above a transformation temperature, and wherein the wire attains a memorized configuration such that the wire can produce a work stroke as a consequence of a transition between the first and second material conditions; and subjecting the wire to a second material condition; wherein the shape memory wire is operatively coupled to a gear within the housing; and the gear comprises teeth and is operatively coupled to a fluid pump within the housing such that when the wire produces the work stroke as a consequence of a transition between the first and second material conditions, the gear is rotated such that the fluid pump generates a fluid flow that delivers the fluid medication from the apparatus to the user.