Patch-like infusion device

US7250037B2 · kind B2 · utility

Assignee

• Becton, Dickinson and Company · US

Inventors

• Charles D. Shermer · Raleigh, US
• Kenneth G. Powell · Raleigh, US
• Alexander G. Lastovich · Raleigh, US
• P. Spencer Kinsey · Sandy Hook, US
• Chad C. Smutney · Watertown, US
• John M. Polidoro · Coventry, US
• Ed Browka · Oakland, US
• Carl R. Sahi · Coventry, US
• James Fentress · Morrisville, US
• David S. Chapin · Raleigh, US
• Daniel M. Stipe · Raleigh, US
• Jeff M. Moss · Golden, US
• Melody M. H. Kuroda · Durham, US

Key dates

• Filing date: Jul 22, 2003
• Grant date: Jul 31, 2007
• Expiry date: Apr 2, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/14506
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system and method for a patch-like, self-contained substance infusion device which provides one or more substantially hidden patient needles which can be placed in fluid communication with a fluid reservoir subassembly that includes a rigid bladder portion used in conjunction with a non-distensible bladder film, such as a metallized film. Simple removal of an interlock allows a disk, or Belleville spring assembly to apply an essentially even and constant pressure to the contents of the fluid reservoir assembly, and allows the device to then be attached to a skin surface via an adhesive contact surface. A push button activation assembly is provided which can then be used to release and seat one or more spring-loaded patient needles into the skin surface, and establish a fluid communication path between the patient needles and the pressurized fluid reservoir contents thereby delivering an infusion into the skin.