GAS ANALYZER

• US 20140247130A1
• Filed: 05/08/2014
• Published: 09/04/2014
• Est. Priority Date: 01/28/2010
• Status: Active Grant

• Current Assignee: Nihon Kohden Corporation
• Original Assignee: Nihon Kohden Corporation
• Inventors: Matsubara, Isao, Uchiyama, Yutaka
• Granted Patent: US 9,417,222 B2
• Time in Patent Office: Days
• US Class Current: 340/603
• CPC Class Codes: A61B 5/082 Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath A61B5/083, A61B5/091 take precedence
• CPC Class Codes: A61B 5/083 Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
• CPC Class Codes: A61B 5/091 Measuring volume of inspired or expired gases, e.g. to determine lung capacity
• CPC Class Codes: A61B 5/097 Devices for facilitating collection of breath or for directing breath into or through measuring devices
• CPC Class Codes: G01N 33/0004 Gaseous mixtures, e.g. polluted air gaseous biological material G01N33/497; exhaust gas of internal combustion engines G01M15/102
• CPC Class Codes: G01N 33/0014 by eliminating a gas G01N33/0013 and G01N33/0024 take precedence
• CPC Class Codes: G01N 33/497 of gaseous biological material, e.g. breath
• CPC Class Codes: G08B 21/18 Status alarms G08B21/02 takes precedence

Abstract

A gas analyzer includes: a gas measuring portion which performs a measurement on a gas; a case which houses the gas measuring portion; a liquid separator which includes a reservoir for storing a liquid component separated from the gas; a holder portion which holds the liquid separator; and a rotation mechanism which mounts the holder portion to the case.

Claims

1. A gas analyzer comprising:

a gas measuring portion which performs a measurement on a gas;

a case which houses the gas measuring portion;

a liquid separator which includes a reservoir for storing a liquid component separated from the gas, and which guides the gas from which the liquid component is separated, to the gas measuring portion; and

a holder portion connectable to the case and the liquid separator, the liquid separator being configured for manual connection to the holder portion in one of a plurality of attitudes, which are different from one another in steps of 90 degrees, the holder portion being configured to enable a determination by a sensor as to whether the liquid separator is connected to the holder portion in an attitude such that the reservoir is positioned in a lowermost portion in a direction of a gravitational force in the liquid separator.

2. The gas analyzer according to claim 1, wherein the holder portion includes a main flow path through which the gas is flown from the liquid separator to the gas measuring portion, and sub flow paths for applying a sucking operation on the reservoir.

3. The gas analyzer according to claim 2, wherein, in a face of the holder portion which is opposed to the liquid separator, a flow path port of the main flow path, and sub flow path ports of the sub flow paths are formed, the sub flow path ports being symmetrically placed about the flow path port of the main flow path.

4. The gas analyzer according to claim 1, wherein the sensor detects an attitude of the liquid separator with respect to the direction of the gravitational force.

5. The gas analyzer according to claim 4, further comprising:

an alarm unit which generates an alarm in a case where the attitude of the liquid separator detected by the sensor is not in a predetermined attitude in which the reservoir is positioned in the lowermost portion in the direction of the gravitational force in the liquid separator.

6. The gas analyzer according to claim 4, further comprising:

a transmitting unit which transmits a detection signal in a case where the attitude of the liquid separator which is detected by the sensor is not in a predetermined attitude in which the reservoir is positioned in the lowermost portion in the direction of the gravitational force in the liquid separator.

7. The gas analyzer according to claim 1, wherein the holder portion includes a rotation mechanism configured such that movement of the holder portion causes a gravitational force to rotate the holder portion along an axis so that the reservoir is positioned in a lowermost portion in the direction of the gravitational force in the liquid separator.

8. A gas analyzer comprising:

a gas measuring portion which performs a measurement on a gas;

a case which houses the gas measuring portion;

a liquid separator which includes a reservoir for storing a liquid component separated from the gas;

a suction pipe which is disposed on the liquid separator, and which includes a suction port that is configured to be connected to a sampling tube that receives respiratory air to be analyzed;

a holder portion which holds the liquid separator; and

a rotation mechanism which mounts the holder portion to the case, wherein the holder portion is rotatable with respect to the case so that the reservoir is positioned in a lowermost portion in a direction of a gravitational force in the liquid separator.

9. The gas analyzer according to claim 8, wherein the rotation mechanism is configured such that movement of the holder portion causes a gravitational force to rotate the holder portion along an axis so that the reservoir is positioned in a lowermost portion in the direction of the gravitational force in the liquid separator.

10. A gas analyzer comprising:

a gas measuring portion which performs a measurement on a gas;

a case which houses the gas measuring portion;

a holder portion that holds a liquid separator which includes a reservoir for storing a liquid component separated from the gas, and which guides the gas from which the liquid component is separated, to the gas measuring portion;

a suction pipe which is disposed on the liquid separator, and which includes a suction port that is configured to be connected to a sampling tube that receives respiratory air to be analyzed; and

a holding unit which is configured to hold the liquid separator in one of a plurality of attitudes which are different from one another in steps of 90 degrees, wherein the liquid separator is movable with respect to the holder portion so that the reservoir is positioned in a lowermost portion in a direction of a gravitational force in the liquid separator.

11. The gas analyzer according to claim 10, wherein the holder portion includes a rotation mechanism configured such that movement of the holder portion causes a gravitational force to rotate the holder portion along an axis so that the reservoir is positioned in a lowermost portion in the direction of the gravitational force in the liquid separator.