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4.1 general characteristics

4.1.1 Sensor BcSs-PICNIW-1000

Table 4.1

...

.1 Sensor Technical Specifications

Sensor

Value

Supply Voltage

3.7 Vdc

Power

2

1

Average: 0.120W | Maximum: 0.6 W

Dimensions (H x W x D)

75

.6

x 51

.5 x 27.7

x 27 mm

Weight

88g

1 Estimated average power considering the fully charged internal battery and average component consumption. Maximum power considered with the internal battery fully discharged.

4.1.2 Sensor BcSs-PICNIW-2000

Table 4.1.2-1 Sensor Technical Specifications

Sensor

Valor

Supply Voltage

3.7 Vdc

Power 1

Média: 0.120W | Máxima: 0.6 W

Dimensions (H x W x D)

50 x 35 x 30 mm

Weight

86.5g

64g

2 1 Estimated average power considering the fully charged internal battery and average component consumption. Maximum power considered with the internal battery fully discharged.

4.1.3 Receiver BcAc-DG-1000

Table 4.1.3-

...

1 Receiver technical characteristics

Dongle

Value

Supply Voltage

4 - 8 Vdc

Power

3

2

Average: 0.038W | Maximum: 0.135 W

Dimensions (H x W x D)

94 x 17.5 x 15 mm

Weight

57.5g

3 2 Estimated average and maximum power considering the monitor’s 5 V supply voltage.

4.2 environmental

Table 4.2.1 environmental specification

Item 

Condition

Range

Temperature range

Operational 3

-

10 °C to 60 °C

4 °F to 140 °F

32 °F to 95 °F 4

In operation while charging the battery

0 °C to 45 °C

32 °F to 113 °F

32 °F to 113 °F 4

Storage

-10 °C to 45 °C

14 °F to 113 °F

32 °F to 104 °F 4

Humidity range

Operational

15% to 80%

Storage

15% to 85%

Atmospheric pressure range

Operational

525 mm Hg to 795 mmHg

Storage

525 mm Hg to 795 mmHg

3 Considering the use of the system without the battery being charged and without the use of the support cart, please refer to the respective temperatures listed in the table.

4Condition for sensor BcSs-PICNIW-2000

ATTENTION - If the BcSs-PICW-2000 sensor model is stored in locations of up to 40 ºC, it is recommended that the sensor be used in a location with a temperature within the operating range and wait until the sensor cools down. If the operating environment is at 20 ºC, the sensor takes approximately 6 minutes to cool down and reach the operating temperature (35 ºC).

4.3 connectivity

The wireless system uses radio frequency services to perform its functionalities. A brief description of the functionalities performed by the system and the Radio Frequency services required are summarized in the table below.

Table 4.3

...

.1 Wireless Functionalities

Functionality 

RF service

Data sending from sensor to App

Bluetooth

Bluetooth device pairing

Bluetooth

Sending data from sensor to receiver

Bluetooth

App account Login 

Wifi / GPRS / EDGE / 3G / HSPA/HSPA+ / 4G / Other internet connection

Data transmission to cloud and report generation

Wifi / GPRS / EDGE / 3G / HSPA/HSPA+ / 4G / Other internet connection

Table 4.3-2 Technical characteristics of sensor

Brain4care Wireless System uses Bluetooth Low Energy technology to communicate with the wireless sensor, receiver and mobile device with brain4care application.

The Bluetooth connection in the wireless sensor and receiver has the following specifications:

Table 4.3.2 Technical characteristics of sensor

Bluetooth

Bluetooth version

Bluetooth 5 low energy, Concurrent Central & Peripheral, 2M LE PHY, 1M LE PHY, Advertising Extensions

Security

brain4care proprietary protocol - Auto refuse third part connections

LE connections

Concurrent central, observer, peripheral, and broadcaster roles allowing concurrent connections between 1 sensor and a receiver and b4c  app

Radio

Frequency

2.360 GHz to 2.500 GHz

Modulations

GFSK at 1 Mbps, 2 Mbps data rates

Transmit power

+4 dBm maximum

Receiver sensitivity

–96 dBm (Bluetooth low energy mode)

The wireless Quality of Service is continuously monitored by B4C app in order to guarantee the required communication performance. If a minimum quality is not achieved, data loss may occur during transmission and the user is warned in the app. If it occurs, bring the sensor closer to the mobile device and check if the minimum quality has been achieved. Also, verify the existence of other wireless devices in the same room and check if the recommended separation distances described at Table 3-3 are maintained. In the event of lost network connection, user interaction may be required to reconnect. In accordance with AAMI TIR69 Risk Management of Radio-frequency Wireless Coexistence for Medical Devices and Systems, the B4C System was not required to undergo wireless coexistence testing.

The B4C application requires internet connection to login, send patient monitoring sessions data to the cloud and to receive the ICP reports. Any technology available on the mobile device that can provide internet connection (typically wifi 802.11 or LTE network) can be used. It is recommended that the mobile device should be used only in secured and encrypted networks.

4.4 batteries

4.4.1 Internal Battery of BcSs-PICNIW-1000 sensor

The sensor has an internal Li-Ion, 3.7 Vdc, 240mAh battery, with a recharge time of approximately three hours and a discharge of approximately five hours, allowing the external battery to be charged alone and without pausing monitoring.

Warning

WARNING - Do not expose the sensor to heat sources. Excessive temperature can cause leaks and excessive heat can cause physical injury.

Table 4.4-.1 Internal battery technical characteristics

Internal Battery

Value

Rated Voltage

3.7 V

Max Loading Voltage

4.2 V

Capacity

240 mAh

Composition

Lithium ion

Max charging current

120 mA

Max discharge current

240 mA

Info

ATTENTION - Only use Brain4care authorized accessories and parts

4.4.2

...

External Battery of BcSs-PICNIW-1000 sensor

The sensor is powered by a removable external battery, which is also responsible for recharging the internal battery. Battery composition is Li-Ion, 3.7 Vdc, 1000mAh. The sensor allows for patient transport both inside and outside the hospital.

Warning

WARNING - Do not expose the sensor to heat sources. Excessive temperature can cause leaks and excessive heat can cause physical injury.

Table 4.4

...

.2 External battery technical characteristics

External Battery

Value

Rated Voltage

3.7 V

Max Loading Voltage

4.2 V

Capacity

1000 mAh

Composition

Lithium ion

Max charging current

1000 mA

Max discharge current

2000 mA

Note

...

PRECAUTION:

  • If the electrolyte comes into contact with the skin, eyes or others parts of body, the electrolyte shall be flushed immediately with fresh water. Seek medical advice from a physician.

  • Do not use the battery if any leakage, smell or deformation is noticed.

  • The batteries used in the B4C wireless sensor and inside B4C external battery module must be replaced at brain4care or authorized service centers only

  • The batteries shall never be soaked with liquids such as water, sea water, drinks such as soft drinks, juices, coffee or others.

  • Do not dump batteries into fire

  • Do not try to disassemble the batteries. In case of problems, please contact brain4care technical support

  • Do not insert conductive or metallic objects in contact with the external battery connector. It may result in short circuit

4.4.3 Internal Battery of BcSs-PICNIW-2000 sensor

The sensor has an internal Li-Ion, 3.7 Vdc, 350mAh battery, with a recharge time of approximately two hours and a discharge of approximately ten hours, monitoring with the sensor is not possible while the battery is being charged.

Warning

WARNING - Do not expose the sensor to heat sources. Excessive temperature can cause leaks and excessive heat can cause physical injury.

The wireless charging system may warm up and heat the sensor while charging to temperatures slightly above the ambient temperature. The sensor features overheating technology to prevent damage. However, it's important to check the product temperature before operating the sensor.

Table 4.4.3 Internal battery technical characteristics

Internal Battery

Value

Rated Voltage

3.7 V

Max Loading Voltage

4.2 V

Capacity

350 mAh

Composition

Lithium ion

Max charging current

120 mA

Max discharge current

240 mA

Info

ATTENTION - Only use Brain4care authorized accessories and parts

4.5 Sensor chargers

4.5

...

.1 External battery charger of BcSs-PICNIW-1000 sensor

The B4C external battery charger has the following characteristics:

Table 4.5

...

.1 - External battery charger settings

Parameter

Specification (typical)

Battery voltage regulation

4.2 V

Current during fast charge

0.979 A

Pre-charge to fast-charge transition threshold

3 V

Termination current

96.8 mA

Timers

Pre-charge: 1800s

Safety timer: 18000s

Battery temperature regulation

Charging suspension: 45°C

Charging resumption: 40°C

4.5.2 Charger of BcSs-PICNIW-2000 sensor

The B4C external battery charger has the following characteristics:

Table 4.5.2 - External battery charger settings 

Parameter

Specification (typical)

Charger type

Wireless - Qi

Type of conector

USB-C

Maximum power charge

15 W

Transmission frequency

115-205 kHz

Input

5V⎓2A

Operation temperature

0ºC até 35ºC

Note

PRECAUTION:

  • Do not attempt to use the charger to charge other devices besides the BcSs-PICNIW-2000 sensor.

  • Use only the original product AC adapter.

  • Keep the sensor properly positioned on the charger. Incorrect positions may result in battery charging failure. Always check if the charging lights are on to ensure the sensor is charging.

  • Do not use the charger with the sensor if you notice any leakage, odor, or deformation in the sensor.

  • Batteries used in the B4C wireless sensor should only be replaced by Brain4Care or authorized service centers.

  • Batteries should never be soaked with liquids such as water, seawater, beverages, sodas, juices, coffee, or others.

  • Do not dump batteries into fire

  • Do not try to disassemble the batteries. In case of problems, please contact brain4care technical support

  • Do not insert conductive or metallic objects in contact with the external battery connector. It may result in short circuit

Warning

WARNING - The wireless charging system may warm up and heat the sensor while charging to temperatures slightly above the ambient temperature. The sensor features overheating technology to prevent damage. However, it's important to check the product temperature before operating the sensor.