Fluid delivery system with autoconnect features

US7955295B2 · kind B2 · utility

Assignees

• Baxter International Inc. · US
• Baxter Healthcare SA · CH

Inventors

• Patrick Lee · Long Grove, US
• John A. Biewer · Waltham, US
• Robert W. Childers · Holiday, US
• Mark W. Foohey · Austin, US
• Richard R. Gilbert, II · Clearwater, US
• Andrey Kopychev · North Aurora, US
• Randy Murphey · Pleasant Prairie, US
• Austin Orand · Portland, US
• Douglas Reitz · Libertyville, US
• Rodolfo Roger · Clearwater, US
• John E. Steck · Round Lake, US

Key dates

• Filing date: Jul 5, 2007
• Grant date: Jun 7, 2011
• Expiry date: Apr 5, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/6116
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A fluid dispensing machine, such as a peritoneal dialysis or hemodialysis machine, includes a dispenser or cassette that pumps a medical fluid for dialysis or other treatments for patients. The machine includes and uses an autoconnect device for connecting containers of liquid, such as bags of dialysis fluid or medication fluids, to the machine, while maintaining the sterility of the connection. The autoconnect device removes the cap from the fluid bag and pierces the scaling membrane on tubing from the bag. This makes it easier for patients to receive treatment, especially home treatment. Other embodiments are useful for dispensing other liquids from other types of dispensing or pumping machines.