Fat burning analyzer

• US 10,667,722 B2
• Filed: 11/29/2017
• Issued: 06/02/2020
• Est. Priority Date: 11/29/2016
• Status: Active Grant

• Current Assignee: ETH Zurich
• Original Assignee: ETH Zurich
• Inventors: Guntner, Andreas T., Pratsinis, Sotiris E.
• Primary Examiner(s): Patel, Nimeshkumar D
• Assistant Examiner(s): Nath, Suman K
• Application Number:
  US15/825,671
• Publication Number:
  US 20180146888A1
• Time in Patent Office: 916 Days
• Field of Search: 73 233
• 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 5/0833 Measuring rate of oxygen consumption
• CPC Class Codes: A61B 5/0836 Measuring rate of CO2 production
• CPC Class Codes: A61B 5/0873 using optical means
• CPC Class Codes: A61B 5/0878 using temperature sensing means
• 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 33/497 of gaseous biological material, e.g. breath

Abstract

The fat burning analyzer includes a sampling part, an analysis unit and a processing unit. The sampling part collects a breath sample from the user, information on the conditions of the breath sample collection, and provides a sampling signal correlated to the collection condition of the breath sample. The analysis unit provides a detection signal corresponding to an acetone concentration in the collected breath sample and, as such, provides information on the breath acetone of the user (during exercise or resting). The processing unit receives the sampling signal and/or detection signal, and evaluates the sampling signal and/or the detection signal. The evaluation provides information correlated to the fat burning intensity of the user. These information can be provided as an output signal by the processing unit. Accordingly, the processing unit is equipped to provide an output signal correlated to the fat burning intensity of the user.

Claims

1. A portable fat burning analyzer for monitoring a fat burning intensity of a user from a user'"'"'s breath, the analyzer comprising:

a sampling part,

an analysis unit and

a processing unit;

wherein the sampling part is equipped for collecting a breath sample from the user,

wherein the sampling part is equipped for collecting information on the conditions of the breath sample collection,

wherein the sampling part is equipped to provide a sampling signal correlated to the collection condition;

wherein the sampling signal is capable of indicating the beginning of an end-tidal portion of the breath sample;

wherein the analysis unit is equipped to provide a detection signal corresponding to an acetone presence in the collected breath sample of the end-tidal portion of the breath sample; and

wherein the sampling part and the analysis unit are spatially separated and equipped to guide the breath sample from the sampling part to the analysis unit; and

wherein the analysis unit is configured to receive the end-tidal portion of the breath sample due to triggered guidance upon indication of the beginning of the end-tidal portion of the breath sample by the sampling signal;

wherein the processing unit is equipped to receive the sampling signal and/or detection signal and to evaluate the sampling signal and/or the detection signal and to provide an output signal correlated to the fat burning intensity of the user.

2. The portable fat burning analyzer according to claim 1, wherein the fat burning intensity of the user is provided reproducibly based on the information of the collection condition provided by the sampling signal.

3. The portable fat burning analyzer according to claim 1, wherein the sampling signal is capable of triggering the detection signal.

4. The portable fat burning analyzer according to claim 1, wherein the sampling signal is capable of indicating a breath sample.

5. The portable fat burning analyzer according to claim 1, wherein the sampling signal comprises information on at least one of the following quantities:

pressure, time/duration of the breath sample, volume of the breath sample, flow of the breath sample, temperature, CO₂-concentration and/or humidity of the breath sample.

6. The portable fat burning analyzer according to claim 1, wherein the processing unit can be equipped to recognize the breath sample due to the sampling signal and its comparison with corresponding target values.

7. The portable fat burning analyzer according to claim 1, wherein the sampling part is equipped for enabling the user to reach and/or maintain a target value and/or target duration for collection of a breath sample of the user.

8. The portable fat burning analyzer according to claim 1, wherein the sampling part comprises a sampling chamber for collecting the breath sample.

9. The portable fat burning analyzer according to claim 1, wherein the sampling part comprises a sampling chamber equipped for buffering the breath sample.

10. The portable fat burning analyzer according to claim 1, wherein the sampling part comprises an inlet and/or an outlet,

wherein the user breathes through the inlet into the sampling part and the breath flowing through the sampling part is guided to the outlet and allowing air to be pushed out of the sampling part and to allow mixed end-tidal portion of the breath sample to remain in the sampling part.

11. The portable fat burning analyzer according to claim 1, wherein the sampling part comprises a sensor equipped for providing information on the condition of the breath sample collection.

12. The portable fat burning analyzer according to claim 11, wherein the sensor is designed as a pressure sensor, a humidity sensor, a temperature sensor, a flow sensor and/or a CO₂ sensor.

13. The portable fat burning analyzer according to claim 11, wherein the sensor is designed as at least one of:

a pressure sensor being arranged in the sampling part and capable of providing information on the exhalation intensity and/or exhalation volume of the user;

a humidity sensor being arranged in the sampling part and capable of providing information on the sampling condition of the breath sample; and

a CO₂ sensor being arranged in the sampling part and capable of providing information on the portion of the breath sample to be analyzed;

a flow sensor being arranged in the sampling part and capable of providing information on the flow of the breath sample,

a temperature sensor being arranged in the sampling part and capable of providing information on the temperature of the breath sample.

14. The portable fat burning analyzer according to claim 11, wherein the sensor is designed as pressure sensor and wherein the pressure sensor is arranged close to an orifice, wherein the orifice is arranged at an inlet of the sampling chamber.

15. The portable fat burning analyzer according to claim 11, wherein the sensor is designed as humidity sensor and wherein the humidity sensor provides a sampling signal on the collection of the breath sample.

16. The portable fat burning analyzer according to claim 11, wherein the sensor is designed as CO2 sensor and wherein the CO2 sensor is capable of indicating the portion of the breath sample to be detected.

17. The portable fat burning analyzer according to claim 11, wherein the sensor is capable of triggering the duration and/or starting point of the detection of the breath sample.

18. The portable fat burning analyzer according to claim 1, wherein the analysis unit comprises an acetone sensor, wherein the acetone sensor is capable of detecting the acetone presence in the breath sample,

wherein the acetone sensor is capable of providing the detection signal upon exposure to acetone present in the breath sample.

19. The portable fat burning analyzer according to claim 18, wherein the acetone sensor is a chemical sensor.

20. The portable fat burning analyzer according to claim 1, wherein the processing unit is equipped to receive the sampling signal and/or the detection signal, said signals comprising information on the flow, the relative humidity, the pressure, the time/duration, temperature, CO₂-concentration and/or acetone concentration of the breath sample.

21. The portable fat burning analyzer according to claim 1, wherein the processing unit further comprises a memory unit, wherein the processing unit is capable of comparing the detection signal to a reference signal stored in the memory.

22. The portable fat burning analyzer according to claim 1, wherein the output signal is notified on a monitor, by an audio signal, visual signal and/or by vibration indicating the fat burning intensity.

23. The portable fat burning analyzer according to claim 1, wherein the fat burning analyzer is equipped to enable the user to control the conditions of the breath sample exhalation by monitoring the sampling signal and by providing a feedback loop enabling the user to reach and/or maintain a target value for the sampling.

24. The portable fat burning analyzer according to claim 1, wherein at least part of the sampling part and the analysis unit is heated.

25. A method of using a fat burning analyzer according to claim 1, comprising the step of:

monitoring a fat burning rate of the user during exercise or during rest,

monitoring the fat burning metabolism of the user,

tailoring a diet based on a monitored fat burning rate of the user,

supporting user on a diet based on the fat burning rate of the user, and/or

providing information of diagnosis related to the breath sample collected in the fat burning analyzer.

26. A mouth piece compatible with a fat burning analyzer according to claim 1.

27. A method for monitoring fat burn with a portable fat burning analyzer according to claim 1, wherein the method comprises the following steps:

providing the fat burning analyzer according to claim 1;

letting the user exhale into the fat burning analyzer;

collecting a breath sample;

providing the sampling signal from the sampling part;

guiding the breath sample from the sampling part to the analysis unit;

detecting presence of acetone in the breath sample with an acetone sensor in the analysis unit,

providing a detection signal from the analysis unit,

calculating the fat burning intensity from the sampling signal and/or the detection signal;

generating an output signal corresponding to the fat burning intensity;

displaying the output signal as a measure of the fat burning intensity.