Dual frequency control for a physiologic monitor

• US 10,736,509 B2
• Filed: 07/30/2018
• Issued: 08/11/2020
• Est. Priority Date: 07/30/2018
• Status: Active Grant

• Current Assignee: Biosense Webster Incorporated (Johnson & Johnson)
• Original Assignee: Biosense Webster Incorporated (Johnson & Johnson)
• Inventors: Govari, Assaf, Ephrath, Yaron, Altmann, Andres Claudio
• Primary Examiner(s): Manuel, George
• Application Number:
  US16/048,542
• Publication Number:
  US 20200029812A1
• Time in Patent Office: 743 Days
• CPC Class Codes: A61B 2560/0209 adapted for power saving
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/686 Permanently implanted devices, e.g. pacemakers, other stimulators, biochips A61B5/6861 takes precedence
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A physiologic monitoring device is configured to detect and record signals from the sensor and to wirelessly communicate via the communication interface with a transmitter and a receiver that are disposed outside the housing, and to receive via the communication interface transmissions of commands and data from the transmitter. The device operates in a standby mode and an active mode Transmissions comprise control signals to change the mode of operation that are transmitted by the transmitter at a first frequency in a range of 1-10 GHz, and transfers of recorded data from the sensor to the receiver in a range of 400-450 MHz.

Claims

1. A physiologic monitoring device comprising:

a housing that is adapted for implantation in a body of a patient and containing;

a communication interface;

a sensor responsive to a physiologic event;

a processor, which is configured to detect and record signals from the sensor and to wirelessly communicate via the communication interface with a transmitter and a receiver that are disposed outside the housing, and to receive via the communication interface transmissions of commands and data from the transmitter;

a memory accessible to the processor;

a battery for powering the device,

wherein the device operates in one of a standby mode and an active mode that consumes more power from the battery than the standby mode, and wherein the transmissions comprise;

control signals that are transmitted by the transmitter at a first frequency in a first range of 1-10 GHz; and

transfers of recorded data from the sensor to the receiver at a second frequency in a second range of 400-450 MHz;

wherein the housing is adapted to be implanted by injection into subcutaneous tissue of the patient, or is adapted to be secured within a wall of the left ventricle of the heart of the patient.

2. The device according to claim 1, wherein the control signals comprise a wakeup command to terminate the standby mode and to begin operation in the active mode.

3. The device according to claim 1, wherein the control signals comprise a command to enter the standby mode of operation.

4. The device according to claim 1, wherein the control signals comprise a command to receive program modifications.

5. The device according to claim 1, wherein the control signals comprise a command to initiate or terminate monitoring of signals from the sensor.

6. The device according to claim 1, wherein the control signals comprise a signal to transfer data from the memory to the receiver.

7. The device according to claim 1, wherein the first frequency is 2.4 GHz.

8. The device according to claim 1, wherein the second range is 402-MHz-405-MHz.

9. The device according to claim 1, wherein the second range is 433-MHz-434-MHz.

10. The device according to claim 1, wherein the physiologic event is an electrical signal from a heart of the patient.

11. The device according to claim 1, further comprising battery charging circuitry linked to the battery.

12. The device according to claim 11, wherein the control signals comprise a command to activate the battery charging circuitry to charge the battery.

13. A method of physiologic monitoring comprising:

providing a device that is adapted for implantation in a body of a patient, comprising;

a housing;

a communication interface;

a sensor responsive to a physiologic event;

a processor, which is configured to detect and record data from the sensor;

a memory accessible to the processor; and

a battery for powering the device;

implanting the device by injection into subcutaneous tissue of the patient, or securing the device to a wall of the left ventricle of the heart of the patient;

operating the device in one of a standby mode and an active mode that consumes more power from the battery than the standby mode;

wirelessly exchanging signals via the communication interface with a transmitter and a receiver that are disposed outside the housing, wherein wirelessly exchanging signals comprises;

when the device is in the standby mode receiving control signals from the transmitter at a first frequency in a first range of 1-10 GHz to terminate the standby mode and to begin operation in the active mode;

when the device is in the active mode at a second frequency transferring the recorded data in a second range of 400-450 MHz from the sensor to the receiver; and

receiving program instructions from the transmitter to operate the processor.

14. The method according to claim 13, further comprising:

responsively to the control signals charging the battery by activating battery charging circuitry.

15. The method according to claim 13, further comprising:

responsively to the control signals terminating the active mode and entering the standby mode of operation.

16. The method according to claim 13, further comprising:

responsively to the control signals receiving program modifications.

17. The method according to claim 13, further comprising:

responsively to the control signals initiating or terminating monitoring of signals from the sensor.

18. The method according to claim 13, further comprising:

responsively to the control signals transferring the recorded data from the memory to the receiver.

19. The method according to claim 13, wherein the first frequency is 2.4 GHz.

20. The method according to claim 13, wherein the second range is 402-MH-405-MHz.

21. The method according to claim 13, wherein the second range is 433-MHz-434-MHz.

22. The method according to claim 13, wherein the physiologic event is an electrical signal from a heart of the patient.