PATCH-LIKE INFUSION DEVICE

摘要

A system and method for a patch-like, self-contained substance infusion devi ce (100) which provides one or more substantially hidden patient needles (141) which can be placed in fluid communication with a fluid reservoir assembly that includes a rigid bladder portion (151) used in conjunction with a non- distensible bladder film (151), such as a metallized film. The device (100) can be attached to a skin surface via an adhesive contact surface and a push button (105) activation assembly can then be used to remove an interlock (135), allowing a disk, or Belleville spring (130) assembly to apply an essentially even and constant pressure to the contents of a fluid reservoir assembly. The push button activation assembly further allows the release of one or more spring-loaded patient needles (141) into the skin surface, and establishes a fluid communication path between the patient needles (141) and the pressurized fluid reservoir contents (150) thereby delivering an infusio n into the skin. The push button activation assembly further allows the releas e of one or more improved safety mechanisms after use.