RESPIRATOR OR ANESTHESIA SYSTEM

• US 20110240021A1
• Filed: 03/08/2011
• Published: 10/06/2011
• Est. Priority Date: 03/30/2010
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Drager Medical GmbH (FPS Vermögensverwaltung GmbH)
• Inventors: GLAW, Tobias, HANSMANN, Hans-Ullrich, EGER, Marcus, Krüger, Thomas
• Granted Patent: US 9,211,384 B2
• Time in Patent Office: Days
• US Class Current: 128/203.14
• CPC Class Codes: A61M 16/01 specially adapted for anaesthetising A61M16/104, A61M16/18 take precedence
• CPC Class Codes: A61M 16/122 with dilution
• CPC Class Codes: A61M 16/18 Vaporising devices for anaesthetic preparations
• CPC Class Codes: A61M 16/22 Carbon dioxide-absorbing devices ; Other means for removing carbon dioxidecartridges with absorbing substances for respiratory apparatus A62B19/00
• CPC Class Codes: A61M 2205/3561 local, e.g. within room or hospital
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2230/60 Muscle strain, i.e. measured on the user
• CPC Class Codes: A61M 2230/63 Motion, e.g. physical activity
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 7/0013 acting upon several batteries simultaneously or sequentially H02J7/1423 takes precedence
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence

Abstract

A respirator or anesthesia system for respirating a patient (20) includes a gas delivery device (3); at least one gas line (4) for forming a breathing air line system, especially a breathing air circulation system; at least one EMG sensor for detecting the electromyographic muscle activity of the respiratory muscles of a patient (20) being respirated; and a control (9) for controlling and/or regulating the output of the gas delivery device (3) as a function of the detected muscle activity of the respiratory muscles. An adaptation of the part of respiration to the performance capacity of the respiratory muscles of the patient (20) being respirated is made possible without invasive measurement of the electromyographic activity of the respiratory muscles by the at least one EMG sensor being an sEMG sensor (6).

Claims

1. A respirator or anesthesia system for respirating a patient, the respirator or anesthesia system comprising:

a gas delivery means;

at least one gas line for forming a breathing air line system or a breathing air line circulation system;

at least one electromyographic (EMG) sensor for detecting the electromyographic muscle activity of the respiratory muscles of a patient being respirated, the at least one EMG sensor comprising a surface electromyographic (sEMG) sensor; and

a control means for controlling and/or regulating an output of the gas delivery means as a function of the detected muscle activity of the respiratory muscles.

2. A respirator or anesthesia system in accordance with claim 1, further comprising at least one measuring module, the sEMG sensor being arranged at the at least one measuring module.

3. A respirator or anesthesia system according to claim 2, further comprising a main unit with a main housing and wherein the gas delivery means and the at least one measuring module is a portable assembly unit separate from the main unit.

4. A respirator or anesthesia system in accordance with claim 1, wherein the at least one measuring module is provided with an analog-digital conversion unit for converting analog electromyographic muscle activity detected by the sEMG sensor into digital signals.

5. A respirator or anesthesia system in accordance with claim 2, wherein the at least one measuring module has a data processing unit and/or an energy supply unit.

6. A respirator or anesthesia system in accordance with claim 5, wherein the energy supply unit comprises at least one battery and/or a capacitor as an energy storage means.

7. A respirator or anesthesia system in accordance with claim 6, wherein a main unit is provided with a charging unit for charging the energy storage means.

8. A respirator or anesthesia system in accordance with claim 5, wherein the energy supply unit in the at least one measuring module is at least one power cable and the at least one power cable is led to a main unit for sending electric power from the main unit to the at least one measuring module and the power sent by the at least one power cable can be sent, at the main unit, from the main unit to the at least one power cable by means of induction with an induction unit with two coils.

9. A respirator or anesthesia system in accordance with claim 2, further comprising:

two energy storage means for supplying the at least one measuring module with energy, the two energy storage means including at least one battery or a capacitor, and with a charging and switching unit, so that at least one energy storage means is electrically separated from the energy supply of a main unit and is electrically connected to the measuring module during a phase of discharge of the at least one energy storage means and at least one energy storage means is electrically separated from the at least one measuring module and is electrically connected to the main unit during a phase of charging of the at least one energy storage means.

10. A respirator or anesthesia system in accordance with claim 2, wherein the at least one measuring module is provided with at least one MMG sensor and/or at least one acceleration sensor and/or a microphone for detecting the muscle activity of the respiratory muscles.

11. A process for controlling and/or regulating a respirator or anesthesia system, especially a respirator or anesthesia system in accordance with claim 1, the process comprising the steps of:

delivering breathing air through at least one gas line of a breathing air line system with a gas delivery means;

detecting the electromyographic muscle activity of the respiratory muscles of a patient being respirated, wherein the electromyographic muscle activity is detected by at least one sEMG sensor on the skin surface of the patient being respirated; and

controlling and/or regulating the output of the gas delivery means and/or the pressure of the inspiration air as a function of the detected muscle activity of the respiratory muscles.

12. A process in accordance with claim 11, wherein the analog electromyographic muscle activity detected by the at least one sEMG sensor is converted with an analog-digital conversion unit into digital signals.

13. A process in accordance with claim 11, further comprising:

providing at least one measuring module with the sEMG sensor; and

supplying the at least one measuring module with electric energy from a main unit of the respirator or anesthesia system.

14. A process in accordance with claim 13, further comprising at least one of:

sending electric energy through at least one power cable from the main unit to the at least one measuring module wherein current is transmitted at the main unit by induction to reduce the coupling capacity between the at least one measuring module and the main unit;

arranging at least one energy storage means at the at least one measuring module and the at least one measuring module is brought to the main unit after detection of the electromyographic muscle activity with the at least one measuring module at the patient and the at least one energy storage means is charged at the main unit and at least one other measuring module is brought to the patient after charging the at least one energy storage means at the main unit, the at least one other measuring module for detecting the electromyographic muscle activity; and

supplying the at least one measuring module with electric energy with at least two energy storage means and the at least one measuring module is supplied with electric energy from one energy storage means during a phase of discharge of the other energy storage means and the other energy storage means is electrically separated from the main unit during the phase of discharge and/or the energy storage means is charged with electric energy from the main unit during a phase of charging of the energy storage means and the energy storage means is electrically separated from the at least one measuring module during the phase of charging.

15. A process in accordance with claim 12, wherein digital data on the muscle activity of the respiratory muscles are transmitted from the measuring module to the main unit in a wireless or wired manner.

16. A respirator or anesthesia system for respirating a patient, the respirator or anesthesia system comprising:

a gas delivery device;

a breathing air system;

an sEMG sensor for detecting the electromyographic muscle activity of the respiratory muscles of a patient being respirated; and

a control unit controlling and/or regulating an output of the gas delivery device as a function of the detected muscle activity of the respiratory muscles.

17. A respirator or anesthesia system in accordance with claim 16, further comprising a measuring module, the sEMG sensor being arranged as part of the measuring module.

18. A respirator or anesthesia system according to claim 17, further comprising a main unit with a main housing and wherein the gas delivery device and the measuring module is a portable assembly unit separate from the main unit.

19. A respirator or anesthesia system in accordance with claim 17, wherein the measuring module is provided with an analog-digital conversion unit for converting analog electromyographic muscle activity detected by the sEMG sensor into digital signals.

20. A respirator or anesthesia system in accordance with claim 17, wherein the measuring module has a data processing unit and/or an energy supply unit.