Respiration system

• US 9,968,749 B2
• Filed: 02/21/2013
• Issued: 05/15/2018
• Est. Priority Date: 02/22/2012
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Inventors: Hansmann, Hans-Ullrich, Eger, Marcus, Bach, Peter, Van Eykern, Leenderd
• Primary Examiner(s): Scherbel, Todd J
• Assistant Examiner(s): Heffner, Ned T
• Application Number:
  US13/772,687
• Publication Number:
  US 20130213399A1
• Time in Patent Office: 1,909 Days
• Field of Search: 12820423, 12820421, 12820014, 12820312, 12820313
• CPC Class Codes: A61B 5/02405 Determining heart rate variability
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/33 specially adapted for cooperation with other devices
• CPC Class Codes: A61B 5/389 Electromyography [EMG]
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: A61M 16/00 Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes stimulating the respiratory movement by mechanical, pneumatic or electrical means, iron lungs combined with gas breathing means A61H31/00
• CPC Class Codes: A61M 16/024 including calculation means, e.g. using a processor
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2230/04 Heartbeat characteristics, e.g. ECG, blood pressure modulation
• CPC Class Codes: A61M 2230/60 Muscle strain, i.e. measured on the user

Abstract

A respiration system for noninvasive respiration includes a respiration drive, which is controlled by a control device, and includes a patient module (4) with electrodes for picking up electrode signals from the surface of the chest of a patient. The control device is set up to suppress ECG signals in the electrode signals in order to obtain electromyographic signals (EMG signals) representing the breathing effort and to control the respiration drive as a function of the EMG signals. Provisions are made for deriving ECG signals from the electrode signals before said ECG signals are suppressed and for making data representative of the ECG available for display.

Claims

1. A respiration system for noninvasive respiration, the respiration system comprising:

a respirator with a display and a respiration drive;

a patient module with electrodes for picking up electrode signals from the surface of the chest of a patient, the electrode signals including electrocardiogram (ECG) signals and electromyographic (EMG) signals; and

a control device controlling the respiration drive, the control device comprising a microprocessor, the control device being configured to receive patient module signals, based on the electrode signals and including the ECG signals and the EMG signals, from the patient module, to suppress the ECG components in the patient module signals in order to obtain the EMG signals representing the breathing effort and to control the respiration drive as a function of the EMG signals, the control device picking up the ECG signals from the patient module signals before the ECG signal component is suppressed and making data representative of the ECG signals, picked up from the patient module signals before the ECG signal component is suppressed, available for display, the control device further being configured to form an envelope for the EMG signals, after separation of the ECG signals, and to display the envelope for the EMG signals on the display of the respirator, to determine a heart rate as a measured value from the ECG signal and to display the heart rate together with the ECG signal on the respirator or to make the heart rate together with the ECG signal available at outputs for separate monitor display;

wherein the patient module comprises circuits to separate the ECG signals from the patient module signals and to make the separated ECG signals available for display in the digital and/or analog form.

2. A respiration system in accordance with claim 1, further comprising:

connection lines wherein the patient module is connected with the respiration drive and the control device by the connection lines, the connection lines supplying energy for the patient module and providing data transmission between the patient module and at least one of the respiration drive and the control device.

3. A respiration system in accordance with claim 1, wherein the patient module is provided with a battery for energy supply and is in radio connection with the respiration drive and the control device in a wireless manner.

4. A respiration system in accordance with claim 1, further comprising a separate monitor for displaying the ECG signals made available at the outputs.

5. A respiration system in accordance with claim 1, wherein a single display is provided for displaying the EMG signals and the ECG signals.

6. A respiration system in accordance with claim 5, wherein the single display provides a window of the display of the ECG signals.

7. A respiration system comprising:

a respirator with a respiration drive;

a patient module with electrodes for picking up electrode signals from the surface of the chest of a patient, the patient module providing an output of module electrode signals including electrocardiogram (ECG) signals and electromyographic (EMG) signals formed from the electrode signals; and

a control device controlling the respiration drive, the control device comprising a microprocessor, the control device receiving the module electrode signals including electrocardiogram (ECG) signals and electromyographic (EMG) signals, the control device extracting the electrocardiogram (ECG) signals from the module electrode signals and forming data representative of the ECG signals for display and the control device suppressing electrocardiogram (ECG) components in the module electrode signals to obtain the electromyographic signals (EMG signals) representing the breathing effort and the control device controlling the respiration drive as a function of the EMG signals, the control device further forming an envelope for the EMG signals, after separation of the ECG signals, and forming EMG envelope display signals, from the formed envelope for the EMG signals, for display on the respirator, and determining a heart rate as a measured value from the ECG signal and displaying the heart rate together with the ECG signal on the respirator or making the heart rate together with the ECG signal available at outputs for separate monitor display;

wherein the control device includes circuits at the patient module to separate the ECG signals from the module electrode signals and to make the separated ECG signals available for display in the digital and/or analog form.

8. A respiration system in accordance with claim 7, further comprising:

connection lines wherein the patient module is connected with the control device by the connection lines, the connection lines supplying energy for the patient module and providing data transmission between the patient module and the control device.

9. A respiration system in accordance with claim 7, wherein the patient module is provided with a battery for supplying energy and is in radio connection with the control device in a wireless manner.

10. A respiration system in accordance with claim 7, further comprising a separate monitor for displaying the ECG signals made available at the outputs.

11. A respiration system in accordance with claim 7, wherein a single display is provided for displaying the EMG signals and the ECG signals.

12. A respiration system comprising:

a respirator comprising a main unit, a respiration drive one or more separate monitor display outputs and a respirator display;

a patient module with electrodes picking up module electrode signals from a surface of a chest of a patient, the module electrode signals including electrocardiogram (ECG) signals and electromyographic (EMG) signals; and

a control device controlling the respiration drive, the control device comprising a microprocessor, the control device receiving module electrode signals from the electrodes, the control device separating electrocardiogram (ECG) signals from the module electrode signals and forming data representative of the ECG signals for display on the respirator display and the control device obtaining electromyographic signals (EMG signals), representing the breathing effort, from the module electrode signals by suppressing electrocardiogram (ECG) components in the module electrode signals from the electrodes, wherein the control device forms the data representative of the ECG signals for display from the module electrode signals before the ECG signal component is suppressed and the control device controls the respiration drive as a function of the EMG signals obtained, the control device further forms an envelope for the EMG signals after separation of the ECG signals and displays the envelope for the EMG signals on the respirator display, and determines a heart rate as a measured value from the ECG signal and at least one of;

displays the heart rate together with the ECG signal on the respirator display; and

makes available the heart rate together with the ECG signal at the one or more separate monitor display outputs for display of the heart rate together with the ECG signal;

wherein the control device includes circuits at the patient module to separate the ECG signals from the module electrode signals and to make the separated ECG signals available for display in the digital and/or analog form.

13. A respiration system in accordance with claim 12, further comprising:

connection lines wherein the patient module is connected with the control device by the connection lines, the connection lines supplying energy for the patient module and providing data transmission between the patient module and the control device.

14. A respiration system in accordance with claim 12, wherein the patient module is provided with a battery for supplying energy and is in radio connection with the control device in a wireless manner.

15. A respiration system in accordance with claim 12, further comprising a separate monitor for displaying the ECG signals.

16. A respiration system in accordance with claim 12, wherein a single display is provided for displaying the EMG signals and the ECG signals.