Arrangement and method for controlling operational characteristics of medical equipment

• US 7,487,775 B2
• Filed: 01/31/2007
• Issued: 02/10/2009
• Est. Priority Date: 03/22/2005
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Mashak, James N.
• Primary Examiner(s): Bianco; Patricia M
• Assistant Examiner(s): PATEL, NIHIR B
• Application Number:
  US11/700,658
• Publication Number:
  US 20070125381A1
• Time in Patent Office: 741 Days
• Field of Search: 128/200.24, 128/204.18, 128/204.21, 128/204.23, 128/202.22, 128/205.23, 128/202.28, 128/202.29, 128/203.11
• US Class Current: 128/204.23
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/01 specially adapted for anaesthetising A61M16/104, A61M16/18 take precedence
• CPC Class Codes: A61M 16/022 Control means therefor
• CPC Class Codes: A61M 16/1015 using a gas flush valve, e.g. oxygen flush valve
• CPC Class Codes: A61M 2205/3561 local, e.g. within room or hospital
• CPC Class Codes: A61M 2209/084 Supporting bases, stands for equipment

Abstract

An arrangement and method is provided for controlling operational characteristics of medical equipment. A pressure sensor associated with the caregiver is arranged to sense changes in air pressure that correspond to breathing activity of the caregiver. The pressure sensor may comprise a neckband, headset, or the like. In the arrangement shown, a headset that is worn by the caregiver includes a disposable tube connected to a pressure transducer such that the pressure sensor senses changes in air pressure in the tube. An open end of the tube is positioned near the mouth of the caregiver to receive changes in airflow from the caregiver'"'"'s mouth. The pressure sensor is in communication with a controller associated with the ventilator. The controller is arranged to control at least one operational parameter of the ventilator, such as the delivery of respiratory support to the patient pr actuation of an oxygen flush valve on the ventilator, based upon the changes in air pressure sensed by the pressure sensor.

Claims

1. An arrangement for controlling a ventilator, the arrangement comprising:

a ventilator configured to provide respiratory therapy to a first person patient;

a pressure sensor device configured to sense changes in air pressure corresponding to breathing activity of a second person caregiver, wherein the pressure sensor device senses an increase in air pressure caused by an exhaled breathing action of the second person caregiver; and

a controller coupled with the ventilator and the pressure sensing device and configured to provide inspiratory support to the first person patient when the pressure sensor device senses an increase in air pressure caused by the exhaled breathing action of the second person caregiver.

2. The arrangement of claim 1, wherein the controller controls a characteristic of the inspiratory support based on the duration of the sensed exhaled breathing action.

3. The arrangement of claim 1, wherein the controller controls a characteristic of the inspiratory support based on the magnitude of the change in air pressure caused by the sensed exhaled breathing action.

4. The arrangement of claim 1, wherein the inspiratory support comprises a supply of breathing gas provided to the first person patient.

5. The arrangement of claim 1, wherein the pressure sensor device comprises a tube receiving the exhaled breathing action of the second person caregiver.

6. The arrangement of claim 5, wherein the pressure sensor device comprises a retainer retaining the tube in proximity to the mouth of the second person caregiver.

7. The arrangement of claim 1, wherein the pressure sensor device further comprises means for providing a perceptible indication of an operational parameter of the ventilator.

8. The arrangement of claim 7, wherein the means for providing a perceptible indication of an operational parameter of the medical equipment comprises an audio speaker.

9. The arrangement of claim 1, wherein the pressure sensor device has a sensitivity to changes in the breathing activity of the second person caregiver that is adjustable.

10. The arrangement of claim 9, wherein the sensitivity is automatically adjustable in accordance with an operational condition of the ventilator.

11. An arrangement for controlling a ventilator, the arrangement comprising:

a ventilator configured to provide respiratory therapy to a first person patient;

a pressure sensor device configured to sense changes in air pressure corresponding to breathing activity of a second person caregiver, wherein the pressure sensor device senses a decrease in air pressure caused by a sipping action of the second person caregiver;

a controller coupled with the ventilator and the pressure sensing device and configured to open a flush valve associated with the ventilator when the pressure sensor device senses a sipping action of the second person caregiver.

12. The arrangement of claim 11, wherein the controller controls the ventilator to open the flush valve for a duration that is based on the duration of the sensed sipping action.

13. The arrangement of claim 11, wherein the controller controls the ventilator to open the flush valve for a duration that is based on the magnitude of the change in air pressure caused by the sensed sipping action.

14. The arrangement of claim 11, wherein the flush valve is located on a breathing circuit located between the first person patient and the ventilator.

15. The arrangement of claim 11, wherein the flush valve is an oxygen flush valve.

16. The arrangement of claim 13, wherein the pressure sensor device comprises a tube for receiving a sipping action of the second person caregiver.

17. The arrangement of claim 16, wherein the pressure sensor device comprises a retainer for retaining the tube in proximity to the mouth of the second person caregiver.

18. The arrangement of claim 13, wherein the pressure sensor device further comprises means for providing a perceptible indication of an operational parameter of the ventilator.

19. The arrangement of claim 18, wherein the means for providing a perceptible indication of an operational parameter of the ventilator comprises an audio speaker.

20. The arrangement of claim 13, wherein the pressure sensor device has a sensitivity to changes in the breathing activity of the second person caregiver that is adjustable.

21. An arrangement for controlling a ventilator to provide respiratory support to a patient, the arrangement comprising:

a pressure sensor device configured to sense changes in air pressure that correspond to breathing activity of a caregiver;

a ventilator configured to provide respiratory support to the patient, the ventilator comprising pneumatic circuitry configured to provide inspiratory support to the patient and a flush valve;

a controller coupled with the ventilator to provide inspiratory support and to open the flush valve; and

means for communicating changes in air pressure sensed by the pressure sensor device to the controller;

the controller coupled with the ventilator and the pressure sensing device and configured to provide inspiratory support when the pressure sensor device senses an increase in air pressure and to open the oxygen flush valve if the pressure sensor device senses a decrease in air pressure.