POWER
Operating voltage 100–240 V
Line frequency 50/60 Hz
Power consumption 35 W typical
ENVIRONMENT
Operating temperature 10–40°C
Relative humidity 30–75% non-condensing
Atmospheric pressure range 700–1060 hPa
CHARACTERISTICS
Main unit:
Dimensions (w x d x h) 420x143x334 mm
Weight 9 kg
Transducers:
Leg plate 2.5 m cable
TOCO transducer, IPX7 2.7 m cable
US transducer, IPX7 2.7 m cable
IUP adapter 2.1 m cable
Event marker hand held, patient operated
DISPLAY
TFT Display:
15.0” viewable image size, resistive touch
Active matrix thin film transistor (TFT)
RGB vertical stripe colour filter arrangement
Characteristics:
Resolution 1024x768
Response time 25 ms (typical)
Viewable angle ±160° horizontal/vertical
Light intensity 250 cd/m²
DATA PRESENTATION
Dual heartrate 50–240 bpm (US)
30–240 bpm (FECG)
Fetal ECG T/QRS ratio –0.30 to +0.90
Fetal ECG average with automatic ST segment analysis
Uterine activity 0–100 relative units (TOCO)
0–100 mmHg (IUP)
Dual heartbeat and signal quality indication
Signal and system status
On-screen traces:
HR 50–210 bpm (20 bpm/cm)
30–240 bpm (30 bpm/cm)
T/QRS –0.12 to +0.50
UA 0–100 relative units (TOCO)
0–100 mmHg (IUP)
Biphasic ST, date, time and connected transducers
Trace speed 1, 2 and 3 cm/min
Browse window for on-screen analysis of the entire recording
Event log information with ST changes, operator notes and signal quality
Real-time FECG signal
Configurable Audible and
Visual Indications
FECG generated heartbeat beep
US generated heart sounds
Audible alarm signal for heart rate and ST events and signal loss
DIGITAL DATA STORAGE
USB storage device
Network storage (FTP or HTTP)
EXTERNAL INTERFACES
Keyboard
Three serial RS232 ports
Network (Ethernet twisted pair, isolator required)
Two USB ports
EXTERNAL EQUIPMENT
Thermal recorder
Network printer
Vital signs monitor
Telemetry system
FETAL ECG RECORDING
Maximum electrode potential difference ±0.75 VDC
Input range ±10 mV
Pre-amplifier bandwidth 0.05–100 Hz (-3dB)
Mains frequency rejection >40dB
Beat-to-beat HR detection
HR range 30–240 bpm
HR accuracy ±1 bpm (≤180 bpm), ±2 bpm (>180 bpm)
30-beat ECG averages
T/QRS ratio range –0.30 to +0.90
T/QRS accuracy ±0.02
Biphasic ST segment indication Grades 1, 2 and 3
US RECORDING
Operating frequencies 1.0 and 1.5 MHz
Intensity <20 mW/cm²
HR range 50–240 bpm
HR accuracy ±2 bpm (≤180 bpm), ±3 bpm (>180 bpm)
TOCO RECORDING
Max load 500 g
Range 0–100 units
Sensitivity 0.32 units/g (nominal, adjustable)
Manual output offset 5 units
Resolution 1 unit
Accuracy ±10% of reading
IUP RECORDING
Range 0–100 mmHg (0–13.33 kPa)
Resolution 1 mmHg (0.13 kPa)
Accuracy ±5% of reading
REGULATORY COMPLIANCE
The STAN™ S31 complies with the IEC/EN 60601-1 safety standard. The CE label indicates that it meets the requirements of European Council Directive 93/42/EEC concerning medical devices. Neoventa Medical operates a quality management system certified to the requirements of ISO 13485:2003.
We reserve the right to make further technical improvements in our products and the specifications can therefore change at any time without prior notice.
This system is protected by UK patent no. 2342449.
STAN is approved by the FDA.