PS320 Fetal Simulator

The PS320 Fetal Simulator simulates fetal and maternal ECG as well as uterine activity to test and troubleshoot fetal electronic monitors and to train clinical staff.

The unit is battery operated and small enough to fit in a pocket so mobile technicians and clinical instructors can take it anywhere.

The PS320 simulates several fetal parameters including twins, and it simulates a wide range of clinical scenarios for training labor-and-delivery staff in how to recognize normal and abnormal responses. An optional mechanical heart creates fetal heart sounds for testing fetal monitors' ultrasound cables and transducers.

PS320 offers an easy user interface providing a 2 x 16-character LCD display with adjustable contrast. The unit operates on a 9-volt battery with low-battery monitoring or functions with the supplied battery eliminator.

Key Features

Mechanical heart for ultrasound simulation TOCO simulation (External or IUP) Ultrasound simulation (including twins) Maternal ECG simulation Fetal ECG (tracks ultrasound #1) Internal (DECG) and external fetal ECG Uterine-activity selections Fetal beat-to-beat variability Periodic and non-periodic fetal ECG changes Arrhythmia selections Compact, lightweight, pocket-size plastic housing Battery operated with status indications Special kits available with all required accessories and cables to test fetal monitors for specified manufacturers

Specifications

Fetal ECG
Static Rates:	30, 60, 90, 120, 150, 180, 210,  and 240 BPM
ECG Sensitivity:	50 µV, 100 µV, 200 µV, 0.5 mV, 1 mV, and 2 mV  US-1 tracks primary fetal ECG rates. US-2 tracks secondary fetal activity for either independent “normal” or “twins” simulation, US-2 rate fixed at 140 BPM
Fetal Patterns:	Note: US-1 fetal ECG track these selections. US-2 is in normal pattern, except during TREND #1 selection.
Variability selections (added to fetal ECG)	Absent variability, low variability, mild variability, high variability, severe variability, and long-tern variability
Note:	These patterns repeat and toco channel will perform toco wave selected
Optional mechanical fetal heart	Provides a mechanical interface to the ultrasound transducer; can be connected to either ultrasound channels. This option, due to its power consumption, requires an ac power adapter to be connected.

Trend #1: Twin Fetal Patterns
NORMAL:	Normal pattern
TACHYCARDIA:	Tachycardia pattern
BRADYCARDIA:	Bradycardia pattern
ARRHYTHMIAS:	Arrhythmia pattern
LATE DECELERATION:	Late deceleration
EARLY DECELERATION:	Early deceleration
MODERATE DECELER:	Moderate variable deceleration
ACCELERATION #1:	Acceleration wave #1
ACCELERATION #2:	Acceleration wave #2
SINUSOIDAL (HIGH):	Sinusoidal pattern, large change
SINUSOIDAL (LOW):	Sinusoidal pattern, small change
SEVERE VAR. DEC. #1:	Severe deceleration wave #2
SEVERE VAR. DEC. #2:	Severe variable deceleration
PROLONGED DECELERATION:	Prolonged deceleration
BIPHASIC DECELERATION:	Biphasic deceleration
EXAGGERATED DECELERATION:	Exaggerated deceleration
NON-UNIFORM DECELERATION:	Non-uniform deceleration
VAR. DECELERATION (U):	Variable deceleration "U" shaped
VAR. DECELERATION TACH:	Variable deceleration with high-rate BPM
VAR. DECELERATION (V):	Variable deceleration "V" shaped
VAR. DECELERATION (POST):	Variable deceleration post exaggerated
VAR. DECELERATION:	Variable deceleration
DECELERATION (POSITION):	Variable deceleration with position changes
LONG DECELERATION:	Long deceleration
COMPENSATORY ACCELATION:	Compensatory acceleration

Maternal ECG
ECG Static Rates:	60, 80, 100, 120, 140, 160 BPM
ECG Sensitivity:	0.5 mV, 1 mV, and 2 mV
Note:	Pattern selected during Trend #1 selection

Uterine Activity
Note:	Toco waveform selection not available during Trend #1
EXECUTE WAVEFORM:	Start toco waveform
UTERINE WAVE OFF:	Stop toco waveform
ANALOG 0 TO 1 VOLT:	Analog range 0 to 1 V (1 V = 100 mmHg)
ANALOG 0 TO -1 VOLT:	Analog range 0 to -1 V (1 V = 100 mmHg)
UTERINE WAVE 0 TO 25:	Range of toco waveform
UTERINE WAVE 0 TO 50:	Range of toco waveform
UTERINE WAVE 0 TO 100:	Range of toco waveform
SHORT DURATION:	Toco waveform of short duration
NORMAL DURATION:	Normal duration of toco waveform
INCREASED DURATION:	Long duration of toco waveform
UTERINE LEVEL = ZERO:	Zero toco channel (automatic on power up)
UTERINE STATIC + 20:	Increase toco static level by 20 mmHg (0 to 100 mmHg)
INCR. RESTING TONE:	Resting tone increases
COUPLING:	2 close toco waves
TRIPLING:	3 close toco waves
UTERINE PRESSURE SENSITIVITY:	5 or 40 µV on power up
Important Notes:	US-1 tracks the fetal ECG rates.  US-2 is the second ultrasound channel with a  normal fetal ECG pattern.  On the fetal and maternal ECG, the fetal ECG  is 1/4 the size of the maternal ECG.  The PS-320 turns on in the following state:  • Fetal ECG static rate @ 150 BPM  • US-1 tracks @ 150 BPM  • US-2 normal pattern  • Pressure sensitivity @ 5 µV/mmHg  • Pressure/Toco set to zero  • Maternal ECG rate @ 80 BPM  • ECG sensitivity @ 1 mV  • Toco wave is normal duration @ 0 to 50 divisions (i.e. 0 to 50 mmHg)

Controls
Display:	2-line x 16-character LCD with keypad
RS232:	Bidirectional interface, 9600 Baud

General Information
Power:	9V battery/battery eliminator; low battery indication set at 6 V
Housing:	Plastic case
Dimensions:	6.1 " L x 3.7 " W .x 1.3 " H (15.6 cm L 9.4 cm W x 3.4 cm H)
Weight:	0.9 lb (0.4 kg)
Temperature:	59 to 95 ˚F (15 to 35 ˚C), operating; 32 to 122 ˚F (0 to 50 ˚C), storage