Flow pulsatility dampening devices

US8366667B2 · kind B2 · utility

Assignees

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

Inventors

• William Chan · Lake in the Hills, US
• Ramiro Castellanos · Waukesha, US
• Reema A. Bhagtani · Milwaukee, US
• Georgios Andrea Bertos · Chicago, US
• Rongsheng Lin · Buffalo Grove, US
• Richard Boyer · Evanston, US
• Jorge DelCastillo · Des Plaines, US
• Gary Schultz · Andover, US

Key dates

• Filing date: Feb 11, 2010
• Grant date: Feb 5, 2013
• Expiry date: Feb 11, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2206/22
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medical fluid infusion system including: a fluid pathway for transporting a pulsatile flow of fluid; a dampening element in communication with the fluid pathway, the dampening element configured to actively dampen pressure fluctuations of the pulsatile flow to smoothen the pulsatile fluid flow, the dampening element operable in any orientation; and a fluid flow sensor disposed along the fluid pathway downstream of the dampening element to measure the flow rate of the smoothened fluid flow.