Method and system for adaptive communication transmission

• US 9,566,383 B2
• Filed: 10/18/2009
• Issued: 02/14/2017
• Est. Priority Date: 10/16/2008
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Yodfat, Ofer, Keret, Avihoo P., Man, Zohar, Mor, Tsabar
• Primary Examiner(s): Bouchelle, Laura
• Assistant Examiner(s): Bui, Anh
• Application Number:
  US13/124,194
• Publication Number:
  US 20110264035A1
• Time in Patent Office: 2,676 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 5/150862 intermediate range, e.g. within room or building
• CPC Class Codes: A61B 5/15087 short range, e.g. between console and disposable using implanted devices A61B5/150877
• CPC Class Codes: A61B 5/150877 with implanted devices
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/3592 using telemetric means, e.g. radio or optical transmission
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/40 for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 80/00 ICT specially adapted for facilitating communication between medical practitioners or patients, e.g. for collaborative diagnosis, therapy or health monitoring
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 52/20 using error rate
• CPC Class Codes: H04W 52/22 taking into account previous information or commands
• CPC Class Codes: H04W 52/221 : using past power control commands
• CPC Class Codes: H04W 52/226 : using past references to control power, e.g. look-up-table
• CPC Class Codes: H04W 52/228 : using past power values or information
• CPC Class Codes: H04W 52/243 : taking into account interferences
• CPC Class Codes: H04W 52/248 : where transmission power control commands are generated based on a path parameter

Abstract

Disclosed are methods, systems, devices and articles, including method for adaptive wireless communication transmissions between units of an ambulatory portable medical device. The method includes obtaining data relating to wireless transmissions between the units of the medical device, and setting one or more attributes of wireless transmission of one or more messages between the units of the medical device based, at least in part, on the obtained data.

Claims

1. A medical system comprising at least two of:

a dispensing unit to dispense therapeutic fluid to a body of a patient;

a sensor to monitor analyte concentration levels in the body of the patient; and

a remote control to control operations of the at least one of the dispensing unit and the sensor;

wherein a first unit from at least one of the dispensing unit, the remote control and the sensor is configured to;

obtain transmission quality data relating to wireless transmission of one or more prior transmissions between the first unit and a second unit from the at least one of the dispensing unit, the remote control and the sensor;

set or adjust one or more wireless transmission attributes based, at least in part, on the obtained transmission quality data, wherein the one or more wireless transmission attributes include a transmission power level at at least one of a first frequency and a first band determined based on the obtained transmission quality data;

wirelessly transmit a message at a first power level using the one or more wireless transmission attributes;

increase, via the first unit, the transmission power level to a second power level at the at least one of the first frequency and the first band when an acceptable acknowledgement in response to the transmission is not received such that an acknowledgement in response to the transmission is not received within a predetermined time period or when the acknowledgement is received but includes a predetermined number of errors or a predetermined number of corrupted messages;

wirelessly transmit the message at the second power level; and

compare the second power level to a maximum power level threshold and, when the second power level exceeds the maximum power level threshold, determine one or more additional power levels at at least one of a second, different frequency and a second, different band until the acceptable acknowledgement in response to the transmission is received.

2. The system of claim 1, wherein the one or more wireless transmission attributes include a plurality of transmission frequencies determined based on the obtained transmission quality data.

3. The system of claim 2, wherein at least one of the determined frequencies is configured as one of the Industrial, Scientific, and Medical (ISM) radio frequencies.

4. The system of claim 2, wherein the first unit is further configured to determine at least one different frequency if the first unit does not receive an acknowledgement in response to the transmitted message within a predetermined time period.

5. The system of claim 1, wherein the first unit is further configured to transmit additional messages to the second unit.

6. The system of claim 1, wherein the first unit is further configured to determine one or more transmission related values based on one or more of:

data transmitted from an external data source and measured data.

7. The system of claim 6, wherein the one or more transmission related values including values computed using mathematical relations between the one or more wireless transmission attributes and at least one of the one or more of:

the data transmitted from the external data source and the measured data.

8. The system of claim 6, wherein the one or more transmission related values comprise one or more of:

availability of transmission frequencies, frequency hopping schedules, pairing status of at least the first unit and the second unit of the medical system, radio-frequency interference (RFI) level in an area in which the at least the first unit and the second unit of the medical system are located, signal-to-noise ratio (SNR) of a first one or more previous transmissions communicated between the at least the first unit and the second unit of the medical system and Received Signal Strength Indication (RSSI) data of a second one or more previous transmissions.

9. The system of claim 1, wherein the therapeutic fluid comprises insulin and the analyte comprises glucose.

10. The system of claim 1, wherein the dispensing unit comprises an insulin pump being securable to the skin of the patient.

11. A medical system comprising at least two of:

a dispensing unit to dispense therapeutic fluid to a body of a patient;

a sensor to monitor analyte concentration levels in the body of the patient; and

a remote control to control operations of the at least one of the dispensing unit and the sensor;

wherein a first unit from at least one of the dispensing unit, the remote control and the sensor is configured to;

obtain transmission quality data relating to wireless transmission of one or more prior transmissions between the first unit and a second unit from the at least one of the dispensing unit, the remote control and the sensor;

set or adjust one or more wireless transmission attributes based, at least in part, on the obtained transmission quality data, wherein the one or more wireless transmission attributes include a transmission power level at at least one of a first frequency and a first band determined based on the obtained transmission quality data; and

wirelessly transmit a message at a first power level using the one or more wireless transmission attributes;

increase, via the first unit, the transmission power level to a second power level at the at least one of the first frequency and the first band when an acceptable acknowledgement is response to the transmission is not received such that an acknowledgement in response to the transmission is not received within the predetermined time period or when the acknowledgement is received but includes a pre-determined number of errors or a predetermined number of corrupted messages; and

wirelessly transmit the message at the second power level; and

compare the second power level to a maximum power level threshold and, when the second power level exceeds the maximum power level threshold, determine one or more additional power levels at at least one of one or more different frequencies and different bands until the first of the acceptable acknowledgement in response to the transmission is received or a pre-determined threshold counter value indicative a number of permissible communication linking attempts has been reached.

12. The system of claim 11, wherein the first unit is further configured to determine one or more transmission related values based on one or more of:

data transmitted from an external data source and measured data.

13. The system of claim 12, wherein the one or more transmission related values including values computed using mathematical relations between the one or more wireless transmission attributes and at least one of the one or more of:

the data transmitted from the external data source and the measured data.

14. The system of claim 12, wherein the one or more transmission related values comprise one or more of:

availability of transmission frequencies, frequency hopping schedules, pairing status of at least the first unit and the second unit of the medical system, radio-frequency interference (RFI) level in an area in which the at least the first unit and the second unit of the medical system are located, signal-to-noise ratio (SNR) of a first one or more previous transmissions communicated between the at least the first unit and the second unit of the medical system and Received Signal Strength Indication (RSSI) data of a second one or more previous transmissions.

15. The system of claim 12, wherein the therapeutic fluid comprises insulin and the analyte comprises glucose.

16. The system of claim 12, wherein the dispensing unit comprises an insulin pump being securable to the skin of the patient.

17. A medical system comprising at least two of:

a dispensing unit to dispense therapeutic fluid to a body of a patient;

a sensor to monitor analyte concentration levels in the body of the patient; and

a remote control to control operations of the at least one of the dispensing unit and the sensor;

wherein a first unit from at least one of the dispensing unit, the remote control and the sensor is configured to;

obtain transmission quality data relating to wireless transmission of one or more prior transmissions between the first unit and a second unit from the at least one of the dispensing unit, the remote control and the sensor;

set or adjust during a pairing between the first unit and the second unit one or more wireless transmission attributes based, at least in part, on the obtained transmission quality data, wherein the one or more wireless transmission attributes include a transmission power level determined based on the obtained transmission quality data, wherein the one or more wireless transmission attributes include a transmission range that is set during the pairing at a first transmission range level sufficient to prevent mispairing;

increase, via the first unit, the transmission power level to a second power level after the pairing, and wherein, after the pairing, and via the first unit, the transmission range is increased to a second, longer transmission range level;

wirelessly transmit the message at the second power level; and

increase, via the first unit, the transmission power level until an acceptable acknowledgement to the transmission is received such that at least one of an acknowledgement in response to the transmission is received within a predetermined time period, the acknowledgement is received with less than a predetermined number of errors, and the acknowledgement is received with less than a predetermined number of corrupted messages.

18. The system of claim 17, wherein the one or more wireless transmission attributes include at least one transmission frequency determined based on the obtained transmission quality data that is set or adjusted during the pairing.

19. The system of claim 18, wherein the determined frequency-is configured as one of the Industrial, Scientific, and Medical (ISM) radio frequencies.