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Cleveland Medical Devices, Inc.
4415 Euclid Avenue, Cleveland, Ohio 4415 , tel: 1-877-clevemed, www.clevemed.com
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BioRadio 150 consists of two hardware components (User Unit and Computer Unit) and
a software component (BioRadio Capture Lite). The User Unit is carried by the person
(on the belt) and is responsible for acquiring the physiological signals from sensors
attached on the body. The User Unit processes the physiological signals and wirelessly
transmits it to the Computer Unit using CleveMed’s proprietary telemetry protocol. The
Computer Unit receives the data from the User Unit and forwards it to a PC. The
BioRadio Capture Lite software displays and stores the data on the PC.
User Unit (Figure 2):
The User Unit has a total of 12 acquisition channels.
It acquires data from up to 11 external physiological sensors (placed on the User’s body)
and from one internal sensor that measures motion or position of the User Unit itself.
The User Unit incorporates state-of-the-art wireless technology in the Industrial Scientific
Medical 902 – 926 MHz (ISM) band. The User Unit is battery powered (2 AA) that lasts
for at least 12 hours continuous use. The User Unit is turned on / off with a toggle switch
located on the side of the enclosure.
11 external sensors: The eleven external sensors can be placed on various locations on
the body to sense various types of physiological signals. The eleven external sensors can
be further divided into four categories of sensors:
Category 1: 8 biopotential signals such as Electroencephalogram (EEG), Electromyogram
(EMG) and Electrocardiogram (ECG). Figure 1 illustrates an example where 4
bioptential signals are connected to the User Unit: 2 EMG (arms), 1 ECG (chest), 1 EEG
(head).
Category 2: 1 oxygen saturation sensor (SpO2).
Category 3: 1 airflow sensor (differential).
Category 4: 1 auxiliary DC input.
The first category of sensors, biopotential sensors, are off-the-shelf electrodes such as
snap-type electrodes or gold cup electrodes that attach to the body on one end and plug
directly into the User Unit on the other end (Figure 1). The second category, oxygen
saturation sensor, is specific to the BioRadio 150 system and wraps on the User’s index.
The airflow sensor uses off-the-shelf nasal cannula that can monitor the User’s breathing.
The last category of external sensors, Auxiliary DC, can be used to hookup to other
monitors such as blood pressure monitors capable of producing an analog output voltage
(0-2 V).
1 Internal Sensor:
The internal position sensor can be used to sense the position or
movement of the User Unit; therefore the internal sensor can be used to detect the
movement of the USER provided the User wears the User Unit (as shown in Figure 1).
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