Inspired-volume-dependent gas dosage

• US 20030172929A1
• Filed: 10/23/2002
• Published: 09/18/2003
• Est. Priority Date: 12/18/1999
• Status: Abandoned Application

• Current Assignee: Rainer Muellner
• Original Assignee: Rainer Muellner
• Inventors: Muellner, Rainer
• Application Number:
  US10/149,616
• Publication Number:
  US 20030172929A1
• Time in Patent Office: Days
• US Class Current: 128/204.18
• CPC Class Codes: A61M 16/12 by mixing different gases
• CPC Class Codes: A61M 16/202 electrically actuated
• CPC Class Codes: A61M 2016/0021 with a proportional output signal, e.g. from a thermistor
• CPC Class Codes: A61M 2016/0039 in the inspiratory circuit
• CPC Class Codes: A61M 2202/0275 Nitric oxide [NO]

Abstract

The gas-supply system for the inhalation treatment of humans or mammals, entailing controlled dosing of at least one gas, characterized by a tidal volume-dependent regulation of the gas dosing.

Claims

1. A gas-supply system for the inhalation treatment of humans or mammals, entailing controlled dosing of at least one gas, characterized by a tidal volume-dependent regulation of the gas dosing.

2. The gas-supply system according to claim 1, characterized in that the gas-supply system has an additional gas line (6) fitted with a sensor (8) for purposes of measuring the respiratory pressure or breathing gas flow.

3. The gas-supply system according to claim 1 or 2, characterized in that a pressure sensor or flow sensor (8) is present for purposes of measuring a tidal volume curve.

4. The gas-supply system according to one of claims 1 through 3, characterized in that the sensor (8) is part of a control means of the gas dosing.

5. The gas-supply system according to one of claims 1 through 4, characterized in that the gas-supply system comprises a control means (12) that is connected to the sensor (8) and adjustable valves (3, 4) for dosing the gas.

6. The gas-supply system according to one of claims 1 through 5, characterized in that the gas-supply system comprises a gas source (1, 2) for oxygen and a gas containing NO;

a gas containing NO and hydrogen;

oxygen and hydrogen;

oxygen and helium;

oxygen, a gas containing NO and hydrogen;

oxygen, a gas containing NO and helium;

oxygen, carbon dioxide and helium;

or oxygen, a gas containing NO, carbon dioxide and hydrogen.

8. The method according to claim 7, characterized in that a gas-supply system according to one of claims 1 through 6 is employed.

11. The use of a gas-supply system according to one of claims 1 through 6 for purposes of supplying gas to ventilated or spontaneously breathing patients.

12. The use according to claim 11 in order to supply gas to COPD patients.

13. The use according to claim 11 or 12, characterized in that oxygen and gas containing NO;

oxygen, gas containing NO and helium;

oxygen, gas containing NO, carbon dioxide and helium;

oxygen, carbon dioxide and helium;

or oxygen, gas containing NO and hydrogen are dosed.

7. A method for operating gas-supply systems to supply gas to humans or mammals, characterized in that a sensor (8) is employed to measure a tidal volume curve and a controlled gas dosing takes place as a function of a measured tidal volume curve.

9. The method according to claim 7 or 8, characterized in that a tidal volume curve is interpolated from measured pressure values and the interpolated tidal volume curve serves to regulate the dosing of at least one gas or aerosol.

10. The method according to one of claims 7 through 9, characterized in that the gas dosing is inspiration-synchronized and it takes place by means of program control, sensor control or combined program-sensor control, or else in sequences.