Rebreathing methods including oscillating, substantially equal rebreathing and nonrebreathing periods

US7135001B2 · kind B2 · utility

Assignee

• RIC Investments LLC · US

Inventors

• Joseph Orr · Park City, US
• Kai Kuck · Hamburg, DE
• Lara Brewer · Bountiful, US

Key dates

• Filing date: Mar 20, 2001
• Grant date: Nov 14, 2006
• Expiry date: Apr 7, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/432
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A differential Fick technique including a first phase in which baseline breathing parameters may be established and a second phase in which a change in the effective ventilation of a patient is induced. The durations of the first and second phases may be substantially the same and may be abbreviated relative to the durations of comparable phases of previously known differential Fick techniques. The disclosed differential Fick technique also lacks a recovery period in which the respiratory parameters of a patient are permitted to return to “normal” levels.