Secure wireless communications between a glucose monitor and other devices

Patent metadata

Field	Value
Publication number	US-2025082850-A1
Application number	US-202418892775-A
Country	US
Kind code	A1
Filing date	Sep 23, 2024
Priority date	Sep 30, 2020
Publication date	Mar 13, 2025
Grant date	—

Abstract

The exemplary embodiments may provide a secure framework for devices in a drug delivery system to wirelessly communicate. The secure framework may use encrypted keys to carry credentials and to specify the rights of the devices presenting the credentials. The devices in the drug delivery system present the keys at the time that they wish to wirelessly communicate with other devices in the drug delivery system. The devices receiving such keys, decrypt the keys and verify if the credentials are valid. If the credentials are valid, a wireless communication session between devices may be established.

First claim

1 - 20 . (canceled)

21 . A glucose monitor, comprising:
a wireless transceiver for transmitting and receiving wireless communications; and a processor configured to:
receive a secure package via a wireless communication from a device when the glucose monitor is uninitialized,
extract contents of the secure package, including an initialization code and
a key,
validate the key as valid or not,
where the key is valid,
permitting the device to conduct wireless communications with the
validate the initialization code as valid or not,
where the initialization code is valid, initialize the glucose monitor,
where the initialization code is not valid, not initialize the glucose monitor, and

where the key is not valid, not permitting the device to conduct wireless communications with the glucose monitor.

22 . The glucose monitor of claim 21 , wherein the extracting the contents of the secure package comprises at least one of decrypting the secure package, applying an inverse hash function to the secure package, or reversing an obfuscation of the secure package.

23 . The glucose monitor of claim 21 , wherein the extracting of the contents of the secure package comprises extracting a timestamp from the secure package.

24 . The glucose monitor of claim 23 , wherein the validating of the key comprises using the timestamp to determine if the key has expired.

25 . The glucose monitor of claim 21 , wherein the extracting of the contents of the secure package comprises extracting information regarding rights to be granted to the device as to wireless communications.

26 . The glucose monitor of claim 21 , where in the glucose monitor is a continuous glucose monitor.

27 . A wearable device, comprising:
a wireless transceiver for transmitting and receiving wireless communications; and a processor configured to:
compose a secure package that includes a key and an initialization code,
transmit the secure package to a glucose monitor that is uninitialized to initialize the glucose monitor,
where the key is valid and the initialization code is valid, receiving an indication from the glucose monitor that the key is valid and the initialization code is valid, and
otherwise receiving an indication that attempt to wirelessly communicate with the glucose monitor and initialize the glucose monitor has failed.

28 . The wearable device of claim 27 , wherein the wearable device is one of a smartwatch, a smart bracelet, or a smart ring.

29 . The wearable device of claim 27 , wherein the wireless transceiver is an near field communication (NFC) transceiver.

30 . The wearable device of claim 27 , wherein the secure package is encrypted, hashed, and/or obfuscated.

31 . The wearable device of claim 27 , wherein the secure package includes a timestamp.

32 . The wearable device of claim 27 , wherein the secure package includes an indication of rights to be granted to the wearable device as to wireless communications with the glucose monitor.

33 . The wearable device of claim 32 , wherein the rights to be granted are viewing only rights.

34 . The wearable device of claim 27 , wherein the glucose monitor is a continuous glucose monitor (CGM).

35 . A medicament delivery device, comprising:
a wireless transceiver for transmitting and receiving wireless communications; and a processor configured to:
receive a secure package from a requesting device,
extract contents of the secure package, including a key and an indication of rights of the requesting device,
validate the key as valid or not,
where the key is valid, in view of contents of the secure package, grant only viewing rights to the requesting device so that the requesting device can read information from the medicament delivery device but is prohibited from changing values stored at the medicament delivery device and from issuing commands to the medicament delivery device; and
where the key is not valid, not permit wireless communications between the medicament delivery device and the requesting device.

36 . The medicament delivery device of claim 35 , wherein the extracting the contents of the secure package comprises at least one of decrypting the secure package, applying an inverse hash function to the secure package or reversing an obfuscation of the secure package.

37 . The medicament delivery device of claim 35 , wherein the extracting the contents of the secure package comprises at least one of extracting a timestamp.

38 . The medicament delivery device of claim 37 , wherein the validating the key comprises using the timestamp to determine whether the key has expired.

39 . The medicament delivery device of claim 35 , wherein the requesting device is a wearable device.

40 . The medicament delivery device of claim 39 , wherein the requesting device is a smartwatch.

Assignees

• Insulet Corp

Inventors

• Nazzaro David

Classifications

• H04W12/06

  Authentication · CPC title

• H04W12/03

  Protecting confidentiality, e.g. by encryption · CPC title

• G06F21/6245

  Protecting personal data, e.g. for financial or medical purposes · CPC title

• A61M2205/3553

  remote, e.g. between patient's home and doctor's office · CPC title

• A61M5/14244

  adapted to be carried by the patient, e.g. portable on the body · CPC title