Patent ID: 9724462
Date: 2017-08-08
CPC Classifications: A61M,F04C

Claim:
1. A selectively activatable patch-pump assembly comprising: a sealed prefilled drug-reservoir containing a drug to be delivered; a fluid-passageway in connection therewith, wherein the fluid-passageway is free of the drug; a selectively activatable penetrator which penetrates said sealed prefilled drug-reservoir and facilitates drug access to said fluid-passageway; and a selectively activatable, associated, cannula-containing assembly for delivering a drug subcutaneously to a subject, in fluid connection with said fluid-passageway; a first spring-based mechanism, wherein a selective activation-step initiates penetration of said sealed prefilled drug-reservoir; a structure preventing the inadvertent activation of said selectively activatable patch-pump assembly, the structure configured such that: removing or releasing the structure from said selectively activatable patch-pump assembly is the selective activation-step, and removing or releasing the structure from said selectively activatable patch-pump assembly automatically causes the first spring-based mechanism to propel said selectively activatable penetrator through said fluid-passageway to penetrate said sealed prefilled drug-reservoir, establishing fluid communication between said sealed prefilled drug-reservoir and said fluid-passageway; wherein said sealed prefilled drug-reservoir is stationary relative to a central longitudinal axis defined by the cannula-containing assembly during initiation of penetration and during penetration of the sealed prefilled drug-reservoir by the selectively activatable penetrator.