Wireless monitoring of a mobile magnet

• US 6,621,413 B1
• Filed: 08/16/2000
• Issued: 09/16/2003
• Est. Priority Date: 08/16/2000
• Status: Expired due to Term

• Current Assignee: GE Medical Systems Global Technology Company LLC (GE Healthcare Technologies, Inc.)
• Original Assignee: GE Medical Systems Global Technology Company LLC (GE Healthcare Technologies, Inc.)
• Inventors: Davenport, David M., Roman, James P., Josephson, Sean S.
• Primary Examiner(s): Crosland, Donnie L.
• Application Number:
  US09/639,698
• Time in Patent Office: 1,126 Days
• Field of Search: 340/539, 340/531, 340/825.36, 340/825.49, 701/29, 701/30, 379/37, 379/38, 455/575, 455/426, 128/903, 128/904, 128/922, 430/39, 600/300, 600/410, 600/411, 324/318, 324/307, 324/309
• US Class Current: 340/539.12
• CPC Class Codes: G01R 33/28 Details of apparatus provided for in groups G01R33/44 - G01R33/64
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

A system and method of servicing a mobile magnet by wireless monitoring is provided. The mobile magnet has a sensor configured to sense a characteristic of the mobile magnet and a computer coupled to the sensor configured to receive sensor data representative of the sensed characteristic. The method includes receiving the sensor data at a remote monitoring station via a wireless communication link with the computer; determining whether the mobile magnet needs service based on the sensor data; and dispatching a service technician to the mobile magnet when the mobile magnet needs service.

Claims

1. A method of servicing a mobile magnetic resonance imaging magnet, the mobile magnetic resonance imaging magnet having a sensor configured to sense a characteristic of the mobile magnetic resonance imaging magnet and a computer coupled to the sensor configured to receive sensor data representative of the sensed characteristic, comprising:

receiving the sensor data at a remote monitoring station via a wireless communication link with the computer that is coupled to the sensor of the mobile magnetic resonance imaging magnet;

determining whether the mobile magnetic resonance imaging magnet needs service based on the sensor data; and

dispatching a service technician to the mobile magnetic resonance imaging magnet when the mobile magnetic resonance imaging magnet needs service.

2. The method of claim 1, further comprising receiving location data at the remote monitoring station via the wireless communication link, wherein the location data is representative of the location of the mobile magnet.

3. The method of claim 1, wherein the sensor data is received periodically.

4. The method of claim 1, wherein the sensor data is received only when the computer detects a need for service of the mobile magnetic resonance imaging magnet.

5. The method of claim 1, wherein the wireless communication link includes a satellite network.

6. The method of claim 1, wherein the sensor data is representative of at least one of coolant level, coolant temperature, and coolant pressure.

7. The method of claim 1, wherein the step of determining includes comparing the received sensor data to a predetermined parameter.

8. The method of claim 7, wherein the received sensor data is representative of a level of consumable coolant of the mobile magnetic resonance imaging magnet and the predetermined parameter includes a minimum consumable coolant level.

9. The method of claim 1, further comprising transmitting data via the wireless communication link from the remote monitoring station to the computer.

10. The method of claim 1, wherein the sensor data is generated by at least one of a compressor run state/temperature sensor, a magnet heater state sensor, a magnet pressure sensor, a magnet temperature sensor, and a magnet quench detector.

11. A wireless monitoring system for a mobile magnetic resonance imaging magnet installed on a mobile vehicle, comprising:

a mobile magnetic resonance imaging magnet;

a sensor configured to sense a characteristic of the mobile magnetic resonance imaging magnet;

a computer coupled to the sensor configured to store mobile magnetic resonance imaging magnet data representative of the sensed characteristic;

a wireless transmitter coupled to the computer configured to receive the mobile magnetic resonance imaging magnet data from the computer, to convert the mobile magnetic resonance imaging magnet data to a format suitable for wireless transmission, and to transmit the converted mobile magnetic resonance imaging magnet data wirelessly;

a wireless receiver located remotely from the mobile magnetic resonance imaging magnet configured to receive the transmitted mobile magnetic resonance imaging magnet data; and

a central computer coupled to the wireless receiver configured to store the mobile magnetic resonance imaging magnet data and to provide an indication whether the mobile magnetic resonance imaging magnet needs service.

12. The wireless monitoring system of claim 11, wherein the sensor is at least one of a compressor run state/temperature sensor, a magnet heater state sensor, a magnet pressure sensor, a magnet temperature sensor, and a magnet quench detector.

13. The wireless monitoring system of claim 11, further comprising a location signal generation circuit configured to generate location data representative of an approximate location of the mobile magnetic resonance imaging magnet, wherein the wireless transmitter is configured to transmit the location data wirelessly.

14. The wireless monitoring system of claim 13, wherein the location signal generation circuit includes a global positioning system receiver.

15. The wireless monitoring system of claim 11, wherein the wireless transmitter includes a circuit switched satellite data terminal.

16. The wireless monitoring system of claim 11, wherein the stored mobile magnetic resonance imaging magnet data is representative of at least one of coolant level, coolant temperature, and coolant pressure.

17. The wireless monitoring system of claim 11, wherein the wireless transmitter is configured to transmit the mobile magnetic resonance imaging magnet data when service of the mobile magnetic resonance imaging magnet is needed.

18. The wireless monitoring system of claim 17, wherein the wireless transmitter is configured to transmit the mobile magnetic resonance imaging magnet data periodically.

19. The wireless monitoring system of claim 11, wherein the central computer is configured to provide data to the wireless receiver, wherein the wireless receiver includes an associated wireless transmitter configured to receive the data and to transmit the data wirelessly, wherein the wireless transmitter includes an associated wireless receiver configured to receive the data and to provide the data to the computer.

20. A mobile magnetic resonance imaging magnet system, comprising:

a mobile magnetic resonance imaging magnet adapted for use in a medical diagnostic application;

a coolant system configured to provide a coolant to the mobile magnetic resonance imaging magnet;

a plurality of sensors coupled to the coolant system configured to sense characteristics of the coolant system;

a data recorder coupled to the sensors configured to store sensor data based on the sensed characteristics; and

a wireless transmitter coupled to the data recorder configured to receive the sensor data, to convert the sensor data to a format suitable for wireless transmission, and to transmit the sensor data wirelessly to a remote central computer.

21. The mobile magnetic resonance imaging magnet system of claim 20, further comprising a location signal generation circuit configured to generate location data representative of the approximate location of the mobile magnetic resonance imaging magnet system, wherein the wireless transmitter is configured to receive the location data, to convert the location data to a format suitable for wireless transmission, and to transmit the location data wirelessly to the remote central computer.

22. The mobile magnetic resonance imaging magnet system of claim 20, wherein the wireless transmitter is configured to transmit the sensor data both periodically and when the data recorder determines that service of the mobile magnetic resonance imaging magnet system is needed.