Intelligent medication delivery systems and methods for dose setting and dispensing monitoring

Patent metadata

Field	Value
Publication number	US-11878151-B2
Application number	US-202217846406-A
Country	US
Kind code	B2
Filing date	Jun 22, 2022
Priority date	May 8, 2018
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

Systems, devices, and techniques are disclosed for administering and tracking medicine to patients and providing health management capabilities for patients and caregivers. In some aspects, an intelligent medicine administering system includes a medicine injection device having a multi-channel encoder that detects fault conditions (e.g., such as open or short circuits) and a patient user's companion device including a software application operable to implement algorithms for detecting faults and communication loss and alerting the patient user for safety and fail-safes of the medicine injection device.

First claim

What is claimed is:

1. A multi-channel pattern encoder for an insulin injection device, comprising:
a processing unit;
a voltage source electrically coupled to an input of the processing unit via a pull-up resistor configured to pull the input of the processing unit to a high logic signal;
a conductive pattern having a plurality of contact pads electrically coupled to ground; and
an electrically conductive sweeping contact electrically coupled to the input of the processing unit and to the voltage source via the pull-up resistor, the sweeping contact configured to rotate relative to the conductive pattern about a shared axis to move into contact and out of contact with the conductive pattern, wherein:
the sweeping contact is electrically grounded when the sweeping contact is contacting at least one contact pad of the plurality of contact pads such that current flows from the voltage source to ground through the pull-up resistor and no voltage is detected at the input of the processing unit; and
a voltage is detected at the input of the processing unit when the sweeping contact is not contacting at least one contact pad of the plurality of contact pads such that there is no current flow from the voltage source to ground through the pull-up resistor.

2. The multi-channel pattern encoder according to claim 1 , wherein the voltage source is a +2V voltage source.

3. The multi-channel pattern encoder according to claim 2 , wherein the voltage detected at the input of the processing unit is 2V.

4. The multi-channel pattern encoder according to claim 1 , wherein the sweeping contact is spring-loaded.

5. The multi-channel pattern encoder according to claim 1 , wherein the sweeping contact and the conductive pattern are coupled to each other by at least one electrically conductive spring extending therebetween.

6. The multi-channel pattern encoder according to claim 1 , wherein the sweeping contact and the conductive pattern are annular rings surrounding the shared axis.

7. The multi-channel pattern encoder according to claim 1 , wherein the sweeping contact is configured to contact more than one contact pad at a time.

8. A multi-channel pattern encoder for an insulin injection device, comprising:
a processing unit;
a pull-up resistor electrically coupled to an output of the processing unit and configured to pull the output of the processing unit to a high logic signal;
a conductive pattern having a plurality of contact pads electrically coupled to ground; and
an electrically conductive sweeping contact electrically coupled to an input of the processing unit and to the output of the processing unit via the pull-up resistor, the sweeping contact configured to rotate relative to the conductive pattern about a shared axis to move into contact and out of contact with the conductive pattern, wherein:
the sweeping contact is electrically grounded when the sweeping contact is contacting at least one contact pad of the plurality of contact pads such that current flows from the output of the processing unit to ground through the pull-up resistor and no voltage is detected at the input of the processing unit, and
a voltage is detected at the input of the processing unit when the sweeping contact is not contacting one of the plurality of contact pads such that there is no current flow from the output of the processing unit to ground through the pull-up resistor.

9. The multi-channel pattern encoder according to claim 8 , wherein the output of the processing unit is a switchable output set to a positive voltage to enable an encoder channel of the multi-channel pattern encoder.

10. The multi-channel pattern encoder according to claim 9 , wherein the positive voltage is +2V.

11. The multi-channel pattern encoder according to claim 8 , wherein the output of the processing unit is configured to be disabled such that there is no current flow from the output of the processing unit to ground through the pull-up resistor when the sweeping contact is contacting at least one contact pad of the plurality of contact pads.

12. The multi-channel pattern encoder according to claim 8 , wherein the sweeping contact is spring-loaded.

13. The multi-channel pattern encoder according to claim 8 , wherein the sweeping contact and the conductive pattern are coupled to each other by at least one electrically conductive spring extending therebetween.

14. The multi-channel pattern encoder according to claim 8 , wherein the sweeping contact and the conductive pattern are annular rings surrounding the shared axis.

15. The multi-channel pattern encoder according to claim 8 , wherein the sweeping contact is configured to contact more than one contact pad at a time.

16. A multi-channel pattern encoder for an insulin injection device, comprising:
a processing unit;
a voltage source electrically coupled to an input of the processing unit via a pull-up resistor configured to pull the input of the processing unit to a high logic signal;
a conductive pattern having a plurality of contact pads electrically coupled to the input of the processing unit and to the voltage source via the pull-up resistor; and
an electrically conductive sweeping contact electrically coupled to ground, the sweeping contact configured to rotate relative to the conductive pattern about a shared axis to move into contact and out of contact with the conductive pattern, wherein:
the conductive pattern is electrically grounded when the sweeping contact is contacting at least one contact pad of the plurality of contact pads such that current flows from the voltage source to ground through the pull-up resistor and no voltage is detected at the input of the processing unit; and
a voltage is detected at the input of the processing unit when the sweeping contact is not contacting one of the plurality of contact pads such that there is no current flow from the voltage source to ground through the pull-up resistor.

17. The multi-channel pattern encoder according to claim 16 , wherein the sweeping contact is spring-loaded.

18. The multi-channel pattern encoder according to claim 16 , wherein the sweeping contact and the conductive pattern are coupled to each other by at least one electrically conductive spring extending therebetween.

19. The multi-channel pattern encoder according to claim 16 , wherein the sweeping contact and the conductive pattern are annular rings surrounding the shared axis.

20. The multi-channel pattern encoder according to claim 14 , wherein the voltage source is a +2V voltage source.

Assignees

• Medtronic Minimed Inc

Inventors

• Saint Sean
• Pryor Jack
• Holmquist Arnold

Classifications

• A61M5/3155 Primary

  by rotational movement of dose setting member, e.g. during setting or filling of a syringe · CPC title

• G08B21/02

  Alarms for ensuring the safety of persons · CPC title

• G08B21/182

  Level alarms, e.g. alarms responsive to variables exceeding a threshold · CPC title

• G08B21/185

  Electrical failure alarms · CPC title

• A61K38/28

  Insulins · CPC title