# US 2021/0080451 A1 · Nfc glucometer containing rechargeable battery for independed useage

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- Number: US 2021/0080451 A1
- Document ID: US20210080451A1
- Status: Published application
- Kind: A1
- Application number: 16/954,378
- Filed: 2018-07-17
- Published: 2021-03-18
- Earliest claimed: 2017-12-18
- Assignees: Sanofi
- Applicants: Sanofi
- Inventors: Thomas Klemm
- Web page: https://patentgrep.com/patent/US20210080451A1

## CPC

- A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement}
- G01N 33/48785: {Electrical and electronic details of measuring devices for physical analysis of liquid biological material not specific to a particular test method, e.g. user interface or power supply}
- G01N 33/66: involving blood sugars, e.g. galactose
- H01M 10/44: Methods for charging or discharging (circuits for charging H02J7/00)
- H02J 7/40: characterised by the exchange of charge or discharge related data
- H02J 7/82: Control of state of charge [SOC]
- H02J 50/10: using inductive coupling
- H02J 50/20: using microwaves or radio frequency waves
- A61B 5/021: Measuring pressure in heart or blood vessels
- A61B 5/14546: {for measuring analytes not otherwise provided for, e.g. ions, cytochromes}
- A61B 5/1468: using chemical or electrochemical methods, e.g. by polarographic means
- A61B 5/1477: non-invasive
- A61B 5/4839: {combined with drug delivery}
- A61B 2560/0204: of power management
- A61B 2560/0209: adapted for power saving
- A61B 2560/0214: of power generation or supply
- H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop
- H02J 7/345: {using capacitors as storage or buffering devices}
- H02J 2105/46: Medical devices, medical implants or life supporting devices
- Y02E 60/10: Energy storage using batteries
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The disclosure refers to a medical device comprising a measurement unit adapted to measure a value of a physiological parameter, for example a blood glucose level, an energy storage unit providing energy supply for the measurement unit, an NFC antenna, an energy supply unit that controls the NFC antenna such that in the presence of an electromagnetic field of a pre-defined frequency range energy is withdrawn from the electromagnetic field surrounding the NFC antenna and stored in the energy storage unit, a charge control unit adapted to determine the electric charge contained in the energy storage unit, and a communication unit adapted to output a pre-defined visible, audible and/or tactile signal if the electric charge contained in the energy storage unit determined by the charge control unit is equal to or below a pre-defined minimum charge value.

## Claims

### Claim at position 1

1-9. (canceled)

### Claim 10

A medical device comprising
measurement unit adapted to measure a value or values of a physiological parameter;
an energy storage unit connected with the measurement unit providing energy supply for the measurement unit;
an NFC antenna;
an energy supply unit connected to the NFC antenna and to the energy storage unit, wherein the energy supply unit controls the NFC antenna such that in the presence of an electromagnetic field of a pre-defined frequency range, energy is withdrawn from the electromagnetic field surrounding the NFC antenna and stored in the energy storage unit,
a charge control unit, connected to the energy storage unit and adapted to determine an electric charge contained in the energy storage unit, and
a communication unit connected with the charge control unit, wherein the communication unit is adapted to output a pre-defined visible, audible, and/or tactile signal if the electric charge contained in the energy storage unit determined by the charge control unit is equal to or below a pre-defined minimum charge value.

### Claim 11 (depends on 10)

The medical device according to claim 10, wherein the charge control unit comprises a gas gauge.

### Claim 12 (depends on 10)

The medical device according to claim 10, wherein the NFC antenna comprises a ferrit core or disc.

### Claim 13 (depends on 12)

The medical device according to claim 12, wherein the NFC antenna and/or the ferrit core or disc is formed by a structure printed on a PCB.

### Claim 14 (depends on 10)

The medical device according to claim 10, wherein the charge control unit is adapted to determine the electric charge contained in the energy storage unit before one measurement of the physiological parameter is conducted by the measurement unit.

### Claim 15 (depends on 10)

The medical device according to claim 10, wherein the charge control unit is connected to the energy supply unit, wherein the charge control unit activates the energy supply unit for energy withdrawal using the NFC antenna if the electric charge contained in the energy storage unit determined by the charge control unit is equal to or below the pre-defined minimum charge value.

### Claim 16 (depends on 10)

The medical device according to claim 10, wherein the medical device is adapted to administrate a medicament based on the measured value or values of the physiological parameter.

### Claim 17 (depends on 10)

The medical device according to claim 10, wherein the physiological parameter is a blood glucose level.

### Claim 18 (depends on 10)

The medical device according to claim 10, wherein the energy storage unit is a rechargeable battery.

### Claim 19 (depends on 10)

The medical device according to claim 10, further comprising an integrated temperature tracker configured to determine a temperature and prevent measurement of the physiological parameter by the measurement unit based on the determined temperature.

### Claim 20

A method for operating a medical device comprising an NFC antenna configured to withdraw energy from an electromagnetic field surrounding the NFC antenna to store in an energy storage unit of the medical device, wherein the method comprises:
determining, by a charge control unit of the medical device, an electric charge contained in the energy storage unit of the medical device before one measurement of a physiological parameter is conducted by a measurement unit of the medical device;
measuring the physiological parameter using the measurement unit of the medical device if the electric charge contained in the energy storage unit determined by the charge control unit of the medical device is greater than a pre-defined minimum charge value or outputting a pre-defined visible, audible, and/or tactile signal by a communication unit of the medical device if the electric charge contained in the energy storage unit determined by the charge control unit is equal to or below the pre-defined minimum charge value.

### Claim 21 (depends on 20)

The method according to claim 20, further comprising operating the NFC antenna such that, in the presence of an electromagnetic field of a pre-defined frequency range, the energy is withdrawn from the electromagnetic field surrounding the NFC antenna and stored in the energy storage unit.

### Claim 22 (depends on 20)

The method according to claim 20, further comprising activating an energy supply unit of the medical device for energy withdrawal using the NFC antenna of the medical device if the electric charge contained in the energy storage unit determined by the charge control unit is equal to or below the pre-defined minimum charge value.

### Claim 23 (depends on 20)

The method according to claim 20, wherein the NFC antenna comprises a ferrit core or disc.

### Claim 24 (depends on 23)

The method according to claim 23, wherein the NFC antenna and/or the ferrit core or disc is formed by a structure printed on a PCB.

### Claim 25 (depends on 20)

The method according to claim 20, wherein the physiological parameter is a blood glucose level.

### Claim 26 (depends on 20)

The method according to claim 20, wherein the energy storage unit is a rechargeable battery.

### Claim 27 (depends on 20)

The method according to claim 20, further comprising administering a medicament based on a value or values of the physiological parameter measured by the measurement unit of the medical device.

### Claim 28 (depends on 20)

The method according to claim 20, wherein the charge control unit comprises a gas gauge.

### Claim 29 (depends on 20)

The method according to claim 20, further comprising preventing measurement of the physiological parameter if a temperature value detected by a temperature tracker of the medical device is below or equal to a minimum temperature value or above or equal to a maximum temperature value.