Combination sensor for physiological parameters

• US 7,883,463 B2
• Filed: 09/28/2004
• Issued: 02/08/2011
• Est. Priority Date: 11/11/2003
• Status: Expired due to Fees

• Current Assignee: Draeger Safety Incorporated (Dragerwerk AG)
• Original Assignee: Draeger Safety Incorporated (Dragerwerk AG)
• Inventors: Dowson, Michael, Koch, Jochim, Sattler, Frank, McWilliams, Robin, Meyer, Jörg-Uwe
• Primary Examiner(s): Nasser; Robert L
• Application Number:
  US10/952,321
• Publication Number:
  US 20050101872A1
• Time in Patent Office: 2,324 Days
• Field of Search: None
• US Class Current: 600/300
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/6815 Ear
• CPC Class Codes: A61B 5/6838 Clamps or clips
• CPC Class Codes: A61B 7/04 Electric stethoscopes microphones, acoustic transducers therefor H04R
• CPC Class Codes: G01K 13/20 Clinical contact thermometers for use with humans or animals

Abstract

A compact combination sensor is provided for physiological parameters, which can be worn behind the ear. The combination sensor has a heat flux sensor (1) for detecting two temperatures (Th1, Th2) for determining the body core temperature (T_c), an acoustic sensor (2) for measuring the heart rate (HR) and for detecting speech signals, as well as a measured signal evaluating unit (4, 5, 7). A communications interface (8) is provided for transmitting the processed data from the measured signal evaluating unit (4, 5, 7) to a communications unit (9) are located in the sensor carrier (11).

Claims

1. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a heat flux sensor for detecting a first temperature and a second temperature, said first temperature being the temperature at or below the skin of a person and said second temperature being the temperature of the environment;

an acoustic sensor for measuring the heart rate and for detecting speech signals;

a first measured signal evaluating unit and a second measured signal evaluating unit, said first measured signal evaluating unit determining a body core temperature using said first detected temperature and said second detected temperature; and

a communications interface for transmitting the processed data from said first measured signal evaluating unit to said communications unit, said heat flux sensor, said acoustic sensor, said first measured signal evaluating unit and said second measured signal evaluating unit and said communications interface being each located at closely spaced locations in said sensor carrier to form a compact arrangement of compact sensors, wherein said sensor carrier is embedded in a pliable plastic material and is adapted to the shape of the human ear.

2. A combination sensor in accordance with claim 1, wherein an additional measured signal evaluating unit is provided for calculating a characteristic number for the physiological stress from the body core temperature and the heart rate and for transmission to the communications unit.

3. A combination sensor in accordance with claim 1, wherein said communications unit sends signals to a receiving unit, which is equipped with a downstream display unit for displaying the heart rate, the body core temperature and/or a characteristic number for the physiological stress.

4. A combination sensor in accordance with claim 1, wherein said sensor carrier has a loudspeaker or alarm which is connected with the communications interface and/or with the measured signal evaluating unit and can be activated when said processed data deviates from a preset limit value.

5. A combination sensor in accordance with claim 1, wherein said data transmission between the communications interface and the communications unit is wireless transmission.

6. A combination sensor in accordance with claim 1, wherein said heat flux sensor is shaped for being in contact with skin of the person.

7. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a temperature sensor for detecting two temperatures at or near the user and for the determination of a body core temperature;

an acoustic sensor for measuring the heart rate of the user and for detecting speech signals of the user;

a measured signal evaluating means for receiving signals from said temperature sensor and said acoustic sensor and providing one or more processed data signals;

a loudspeaker connected with the communications interface and/or with the measured signal evaluating means, said measured signal evaluating means comparing said signals with a preset value, said measured signal evaluating means activating said loudspeaker when the processed data is above or below said preset value; and

a communications interface for transmitting the processed data from said measured signal evaluating means to said communications unit, said heat flux sensor, said acoustic sensor, said measured signal evaluating means, said filter and said communications interface being each located in said sensor carrier, wherein said sensor carrier is embedded in a pliable plastic material of silicone, and is adapted to the shape of the human ear.

8. A combination sensor in accordance with claim 7, wherein said measured signal evaluating means provides a processed data signal based on a signal received from said temperature sensor, provides a processed data signal based on a signal received from said acoustic sensor and calculates a characteristic number relating to physiological stress based on the body core temperature and the heart rate to provide a physiological stress processed data signal, wherein each of said processed data signal based on a signal received from said temperature sensor, said processed data signal based on a signal received from said acoustic sensor and said physiological stress processed data signal being transmitted to said communications unit.

9. A combination sensor in accordance with claim 7, further comprising a downstream display unit, wherein said communications unit sends signals to a receiving unit, which is equipped with said downstream display unit for displaying the heart rate, the body core temperature and/or the characteristic number for the physiological stress.

10. A combination sensor in accordance with claim 7, wherein said data transmission between the communications interface and the communications unit is wireless transmission.

11. A combination sensor in accordance with claim 7, wherein said measured signal evaluating means provides a processed data signal based on a signal received from said temperature sensor, provides a processed data signal based on a signal received from said acoustic sensor and calculates a characteristic number relating to physiological stress based on the body core temperature and the heart rate to provide a physiological stress processed data signal, wherein each of said processed data signal based on a signal received from said temperature sensor, said processed data signal based on a signal received from said acoustic sensor and said physiological stress processed data signal being transmitted to said communications unit.

12. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a heat flux sensor for detecting two temperatures for the determination of a body core temperature;

an acoustic sensor for measuring the heart rate and for detecting speech signals, said heat flux sensor and said acoustic sensor having a skin engaging portion in contact with skin of a patient;

a measured signal evaluating unit; and

a communications interface for transmitting the processed data from said measured signal evaluating unit to said communications unit, said heat flux sensor, said acoustic sensor, said measured signal evaluating unit and said communications interface being each closely arranged at spaced locations in said sensor carrier to form a compact arrangement of compact sensors, wherein said skin engaging portions has means for contacting the skin of a patient in an area adjacent to an ear of the patient.

13. A combination sensor in accordance with claim 12, wherein said sensor carrier is embedded in a pliable plastic material of silicone, and is adapted to the shape of the human ear.

14. A combination sensor in accordance with claim 12, further comprising a downstream display unit, wherein said communications unit sends signals to a receiving unit, which is equipped with said downstream display unit for displaying the heart rate, the body core temperature and/or the characteristic number for the physiological stress.

15. A combination sensor in accordance with claim 12, wherein said sensor carrier has a loudspeaker which is connected with the communications interface and/or with the measured signal evaluating unit and can be activated.

16. A combination sensor in accordance with claim 12, wherein said sensor carrier is shaped for being located in a space defined between an earlobe and skull of a patient.

17. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a heat flux sensor for detecting a first temperature and a second temperature, said first temperature being the temperature at or below the skin of a person and said second temperature being the temperature of the environment;

an acoustic sensor for measuring the heart rate and for detecting speech signals;

a first measured signal evaluating unit and a second measured signal evaluating unit, said first measured signal evaluating unit determining a body core temperature using said first detected temperature and said second detected temperature; and

a communications interface for transmitting the processed data from said first measured signal evaluating unit to said communications unit, said heat flux sensor, said acoustic sensor, said first measured signal evaluating unit and said second measured signal evaluating unit and said communications interface being each located at closely spaced locations in said sensor carrier to form a compact arrangement of compact sensors, wherein said sensor carrier is embedded in a pliable plastic material and is adapted to the shape of the human ear, said pliable plastic material being silicone.

18. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a heat flux sensor for detecting two temperatures for the determination of a body core temperature;

an acoustic sensor for measuring the heart rate and for detecting speech signals, said heat flux sensor and said acoustic sensor having a skin engaging portion in contact with skin of a patient;

a measured signal evaluating unit; and

a communications interface for transmitting the processed data from said measured signal evaluating unit to said communications unit, said heat flux sensor, said acoustic sensor, said measured signal evaluating unit and said communications interface being each closely arranged at spaced locations in said sensor carrier to form a compact arrangement of compact sensors, wherein said skin engaging portions has means for contacting the skin of a patient in an area adjacent to an ear of the patient, said sensor carrier having a shape such that said sensor carrier conforms to a contour the skin of the patient in an area adjacent to an ear of a patient.

19. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a heat flux sensor for detecting two temperatures for the determination of a body core temperature;

an acoustic sensor for measuring the heart rate and for detecting speech signals, said heat flux sensor and said acoustic sensor having a skin engaging portion in contact with skin of a patient;

a measured signal evaluating unit; and

a communications interface for transmitting the processed data from said measured signal evaluating unit to said communications unit, said heat flux sensor, said acoustic sensor, said measured signal evaluating unit and said communications interface being each closely arranged at spaced locations in said sensor carrier to form a compact arrangement of compact sensors, wherein said sensor carrier is embedded in a pliable plastic material of silicone, and is adapted to the shape of the human ear.

20. A combination sensor for physiological parameters, the combination sensor comprising:

a communications unit;

a sensor carrier;

a heat flux sensor for detecting two temperatures for the determination of a body core temperature;

an acoustic sensor for measuring the heart rate and for detecting speech signals, said heat flux sensor and said acoustic sensor having a skin engaging portion in contact with skin of a patient;

a measured signal evaluating unit; and

a communications interface for transmitting the processed data from said measured signal evaluating unit to said communications unit, said heat flux sensor, said acoustic sensor, said measured signal evaluating unit and said communications interface being each closely arranged at spaced locations in said sensor carrier to form a compact arrangement of compact sensors, said sensor carrier being shaped for being located in a space defined between an earlobe and skull of a patient.