Patient monitoring system and method configured to suppress an alarm

• US 9,965,945 B2
• Filed: 09/30/2016
• Issued: 05/08/2018
• Est. Priority Date: 09/30/2016
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Grubis, Matthew George
• Primary Examiner(s): Singh, Hirdepal
• Application Number:
  US15/282,441
• Publication Number:
  US 20180096590A1
• Time in Patent Office: 585 Days
• Field of Search: 340506
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: G08B 21/02 Alarms for ensuring the safety of persons
• CPC Class Codes: G08B 29/185 Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 50/70 for mining of medical data, e.g. analysing previous cases of other patients

Abstract

Patient monitoring system includes a master unit. The master unit is configured to receive signal data of the patient from a plurality of acquisition devices. The master unit is also configured to receive a warning signal from a triggered acquisition device of the plurality of acquisition devices. The warning signal is communicated by the triggered acquisition device upon determining that corresponding physiological signals of the triggered acquisition device satisfy a designated condition. In response to receiving the warning signal from the triggered acquisition device, the master unit is configured to analyze the signal data from another acquisition device of the plurality of acquisition devices to determine whether the warning signal is clinically relevant or clinically irrelevant or unreliable. The master unit may permit a patient alarm or suppress the patient alarm based on the signal data from another acquisition device.

Claims

1. A patient monitoring system comprising:

a plurality of acquisition devices, wherein the acquisition devices have sensors configured to detect physiological signals from a patient and device circuitry configured to determine whether the corresponding physiological signals satisfy a designated condition;

a master unit having a processor configured to execute programmed instructions stored in memory, the master unit configured to communicatively couple to the plurality of acquisition devices, the master unit, when executing the programmed instructions, configured to;

receive signal data of the patient from the acquisition devices, wherein the signal data is based on the physiological signals detected by one or more of the sensors of the corresponding acquisition devices;

receive a warning signal from a triggered acquisition device of the plurality of acquisition devices, the warning signal being communicated by the triggered acquisition device upon determining, at the triggered acquisition device, that the corresponding physiological signals of the triggered acquisition device satisfy the designated condition;

wherein, in response to receiving the warning signal from the triggered acquisition device, the master unit is configured to analyze the signal data from another acquisition device of the plurality of acquisition devices to determine whether the warning signal is clinically relevant or clinically irrelevant or unreliable, the master unit permitting a patient alarm associated with the triggered acquisition device to issue after determining the warning signal is clinically relevant, the master unit suppressing the patient alarm associated with the triggered acquisition device after determining that the warning signal is clinically irrelevant or unreliable;

wherein the triggered acquisition device is configured to confirm that a communication line exists between the triggered acquisition device and the master unit, the device circuitry of the triggered acquisition device causing the patient alarm to issue or another patient alarm to issue after determining that the communication line is insufficient for communicating the warning signal, the other patient alarm being indicative of a health-related event that is monitored by the triggered acquisition device.

2. The patient monitoring system of claim 1, wherein the master unit is configured to log the physiological signals of the triggered acquisition device when the warning signal was communicated and the signal data of the other acquisition device after determining that the warning signal is clinically irrelevant or unreliable.

3. The patient monitoring system of claim 1, wherein the signal data of the other acquisition device at least one of:

(a) is the same type of signal data communicated by the triggered acquisition device;

(b) corresponds to a patient parameter that is substantially related to the patient parameter of the signal data communicated by the triggered acquisition device;

or (c) provides an explanation as to why the signal data of the triggered acquisition device is clinically irrelevant or unreliable.

4. The patient monitoring system of claim 1, wherein the signal data from the other acquisition device has a signal quality index and wherein the determination by the master unit as to whether the warning signal is clinically relevant or clinically irrelevant or unreliable is based on the signal quality index of the other acquisition device.

5. The patient monitoring system of claim 4, wherein the signal quality index is a first signal quality index, the signal data from the triggered acquisition device has a second signal quality index and wherein the determination by the master unit as to whether the warning signal is clinically relevant or clinically irrelevant or unreliable is based on the first and second signal quality indexes of the other acquisition device and the triggered acquisition device.

6. The patient monitoring system of claim 1, wherein the determination by the master unit as to whether the warning signal is clinically relevant or clinically irrelevant or unreliable is based on data from a clinical source, wherein the data from the clinical source changes the designated condition that was satisfied at the triggered acquisition device.

7. The patient monitoring system of claim 1, wherein the warning signal includes the signal data that caused the warning signal and additional data that instructs the master unit to issue the patient alarm.

8. A method of monitoring a patient, the method comprising:

communicatively coupling a master unit with a plurality of acquisition devices that are operably coupled to a patient, the acquisition devices having sensors configured to detect physiological signals from the patient and device circuitry configured to determine whether the corresponding physiological signals satisfy a designated condition, the acquisition devices being separate and distinct with respect to the master unit;

receiving, at the master unit, a warning signal from a triggered acquisition device of the plurality of acquisition devices, the warning signal being communicated by the triggered acquisition device upon determining, at the triggered acquisition device, that the corresponding physiological signals of the triggered acquisition device satisfy the designated condition, the warning signal informing the master unit that a patient alarm should be issued;

receiving, at the master unit, signal data from another acquisition device of the plurality of acquisition devices, the signal data being based on the physiological signals detected by the other acquisition device, and

analyzing at the master unit, in response to receiving the warning signal from the triggered acquisition device, the signal data from the other acquisition device to determine whether the warning signal is clinically relevant or clinically irrelevant or unreliable, wherein the method also includes permitting the patient alarm associated with the triggered acquisition device to issue after determining that the warning signal is clinically relevant or suppressing the patient alarm associated with the triggered acquisition device after determining that the warning signal is clinically irrelevant or unreliable; and

wherein the triggered acquisition device is configured to confirm that a communication line exists between the triggered acquisition device and the master unit, the device circuitry of the triggered acquisition device causing the patient alarm to issue or another patient alarm to issue after determining that the communication line is insufficient for communicating the warning signal, the other patient alarm indicative of a health-related event monitored by the triggered acquisition device.

9. The method of claim 8, wherein the warning signal includes the signal data that caused the warning signal and additional data that instructs the master unit to issue the patient alarm.

10. The method of claim 8, wherein the signal data from the other acquisition device has a signal quality index and wherein the determination as to whether the warning signal is clinically relevant or clinically irrelevant or unreliable is based on the signal quality index of the other acquisition device.

11. The method of claim 8, further comprising receiving data from a clinical source, wherein the determination as to whether the warning signal is clinically relevant or clinically irrelevant or unreliable is based on the data from a clinical source, wherein the data from the clinical source changes the designated condition that was satisfied at the triggered acquisition device.

12. The method of claim 8, wherein the acquisition devices are located in a patient room, the master unit being located outside of the patient room.

13. The method of claim 10, wherein the signal quality index is a first signal quality index, the signal data from the triggered acquisition device has a second signal quality index and wherein the determination by the master unit as to whether the warning signal is clinically relevant or clinically irrelevant or unreliable is based on the first and second signal quality indexes of the other acquisition device and the triggered acquisition device.

14. The method of claim 8, wherein determining, at the device circuitry, that the communication line is insufficient includes determining that the communication line is compromised.

15. A patient monitoring system comprising:

a plurality of acquisition devices having sensors configured to detect physiological signals from a patient;

a master unit having a processor configured to execute programmed instructions stored in memory, the master unit being separate and distinct with respect to the plurality of acquisition devices and configured to communicatively couple to the plurality of acquisition devices, the master unit, when executing the programmed instructions, configured to;

receive signal data of the patient from the acquisition devices, wherein the signal data is based on the physiological signals detected by the sensors of the corresponding acquisition devices, the acquisition devices including a primary acquisition device and one or more secondary acquisition devices;

analyze the signal data of the primary acquisition device and at least one secondary acquisition device to determine whether a health-related event has been detected, wherein determining whether the health-related event has been detected includes;

determining whether the signal data from the primary acquisition device satisfies a designated condition associated with the health-related event; and

in response to determining that the signal data from the primary acquisition device satisfies the designated condition, determining whether the signal data from the at least one secondary acquisition device indicates the signal data of the primary acquisition device is clinically relevant or clinically irrelevant or unreliable; and

wherein a patient alarm is permitted to issue if the signal data from the at least one secondary acquisition device indicates the signal data of the primary acquisition device is clinically relevant, wherein the patient alarm is suppressed from issuing if the signal data from the at least one secondary acquisition device indicates the signal data of the primary acquisition device is clinically irrelevant or unreliable;

wherein the primary acquisition device has device circuitry configured to determine whether the corresponding physiological signals satisfy the designated condition, the primary acquisition device being permitted to cause the patient alarm to issue or another patient alarm to issue after determining that a communication line between the master unit and the primary acquisition device is insufficient and determining that the physiological signals have satisfied the designated condition, the other patient alarm indicative of the health-related event monitored by the primary acquisition device.

16. The patient monitoring system of claim 15, wherein the master unit is configured to log the signal data of the primary acquisition device and the at least one secondary acquisition device when the signal data from the at least one secondary acquisition device indicates the signal data of the primary acquisition device is clinically irrelevant or unreliable.

17. The patient monitoring system of claim 16, wherein the health related event is a first health-related event and the primary acquisition device is a first primary acquisition device, the master unit also configured to:

analyze the signal data of a different second primary acquisition device and at least one secondary acquisition device to determine whether a different second health-related event has been detected, wherein determining whether the second health-related event has been detected includes;

determining whether the signal data from the second primary acquisition device satisfies a designated condition associated with the second health-related event; and

in response to determining that the signal data from the second primary acquisition device satisfies the designated condition, determining whether the signal data from the at least one secondary acquisition device indicates the signal data of the second primary acquisition device is clinically relevant or clinically irrelevant or unreliable.

18. The patient monitoring system of claim 17, wherein the second primary acquisition device is one of the secondary acquisition devices that provides signal data to determine whether the first health-related event occurred.

19. The patient monitoring system of claim 16, wherein the determination by the master unit as to whether the signal data from the primary acquisition device satisfies the designated condition associated with the health-related event is based on data from a clinical source.

20. The patient monitoring system of claim 19, wherein the data from the clinical source changes the designated condition associated with the health-related event.