The Specification of physical electronic isolation defibrillator battery electromagnetic compatibility and rhythm recognition performance will be described in this section:
Data Acquisition and Analysis
The Defi® Xpress is no longer automatically configured to a certain frequency response. There are two diagnostic frequency options: 0.05-150 Hz
Diagnostic Frequency Filter and 0.05-40 Hz Filtered Diagnostic
Frequency filter. See chapters 7 on switching between these two options.
Defibrillator
Waveform Details:
The tables below provide details of the waveforms delivered by the Defi® Xpress when connected to resistive loads of 25 50 and 100 Ohms and set to its maximum output.
The waveforms are characterized by DEFI XPRESS values for peak current (Ip) for biphasic: duration of The first output phase (tphase1) and duration of the second output phase (tphase2).
The values shown are within 10%.
Waveform: Truncated Exponential Biphasic
Output Energy Accuracy:
+/- 10% or 1J (whichever is greater) at 50 ohms
+/- 15% or 1J (whichever is greater) at 25 to 100 ohms
Energy Select:
External: 2 5 7 10 20 30 50 70 100 150 200 300 360 J.
Charge Time:
< 06 seconds @ 200 J (with a Ni-MH 12 volt - MEDITECH battery ).
< 12 seconds @ 360 J (with a Ni-MH 12 volt - MEDITECH battery after15discharges).
< 15 seconds @ 360 J (no battery 90% AC mains voltage)
Charge Indicator: Audible and graphic.
Output :
Adult paddles pediatric adapter and multipurpose hands-free adapter available.
Synchronizer: Delivers energy within 60 msec.
Disarm: Front panel switch.
Monitor/Display
Input:
3-lead 5-lead patient cable
Size: 7 inches (16.5 cm) diagonal non-fade.
Type: color (TFT)
Display Resolution: 800 x 600 pixels.
Sweep Speed: 12.5mm/s25mm/s50mm/s
Lead Selections: I II III AVR AVL AVF V.
Frequency Response: (User-selectable).
0.7 to 20 Hz operation mode
0.3 to 40 Hz Monitoring mode
0.05 to 150 Hz Analysis mode
0.5 to 30 Hz AED mode
Common Mode Rejection:>=60dB
Heart Rate Meter: 20 to 300 BPM.
Heart Rate Alarms: User-selectable.
Size: 0.125 0.25 0.5 1 2 4 cm/mv and auto-ranging.
ECG Output: 1 V/mV.
Heart Rate Response to Irregular Rhythm: (AAMI EC13-1992 section 4.1.2.1.e.)
Alarms
Heart Rate Spo2 Alarm:
Audible: 5 pulse 800 tone with a PW of 150 msec a PRI of 225 msec and a repetition interval of 10 seconds.
Visual: Heart Rate Alarm causes the displayed heart rate to flash at 2 Hz. This display is located at the top of the display and is 0.4" high and 0.28 to 0.840" wide depending on num-ber of digits in the heart rate. Is amber black white or whatever the color the display text is.
Lead Fault Alarm:
Audible: 3 pulse 500 Hz triplet tone with a PW of 200 msec a PRI of 310 msec. When the HR alarm is set or the pacer is on the lead fault tone repeats at a repetition interval of 20 seconds.
Visual: Lead Fault condition causes a "LEAD FAULT" message to be displayed on the trace along with a dashed line the width of the trace. The text is 0.18" high and is the color of the display text. The dashed line is 5" Long the width of the display. The signal is not modulated.
Physiological Alarms (Spo2):
Audible: See Heart Rate Alarm
Visual: Physiological alarms cause the displayed parameter to flash at 2 Hz. Color is amber white or the same as the display colored text.
Mute Duration: 90 seconds.
End-tidal CO2 (EtCO2):
Safety ETCO2：BF type
Power Requirements 12.0V±0.2V DC
Power Consumption 100mA (typical with pump on) 200mA (extreme status)
Operating Temperature Range 5～50℃
Shipping/Storage Temperature Range -20～+70℃
Relative Humidity 0-85% (non-condensing)
Dimensions 96×91×36mm
CO2 Range 0 to 13%（0－98.8mmHg@BTPS）
CO2 Accuracy <5.0% CO2 (at BTPS) ± 3 mmHg
>5.0% CO2 (at BTPS) < 10% of reading
Breath Rate 3～60 BPM
Measurement Accuracy ±1BPM
Warm-up Time 10 seconds
Response Time Detector: 10mS，
System: Dependent Upon Implementation, Pneumatics
and Water Separation Technique
Flow Control 50～250ml/min
Interface Highly configurable serial digital interface (TTL/RS232)
Automatic Offset Calibration Time and temperature based, as well as on-demand
Pacemaker
Type: VVI
Pulse Type: rectangular,constant current
Pulse Amplitude: 0 to 180 mA ± 10% or 5 mA (whichever is greater).
Pacing Rate: Variable from 30 ppm to 180 ppm ±1.5% (increments or decrements by a value of 2 ppm)
Multi-Function Electrode: (MFE) Pads: multipurpose defibrillation/pacing electrodes
Pause: Pacing pulse frequency reduced by a factor of 4 when activated
Refractory Period: NC(VVI demand do not have this specification)
Pulse Width: (20+ 1.5 ms)
Output Protection: Fully defibrillator protected and isolated
Recorder
Type: High-resolution thermal array.
Annotation: Time date ECG lead ECG gain heart rate defibrillation and treatment summary ACLS events.
Paper Width: 50 mm.
Paper Speed: 25 mm/sec 50 mm/sec 12 Lead 50 mm/sec
Delay: 6 seconds.
Frequency Response:
Automatically set to monitor's frequency response.
Battery
High Capacity Type: Ni-MH 12V volt - MEDITECH
Up to 4 hours ECG monitoring or 110 full-energy dis-charges or 3 hours combined ECG Spo2 and monitor-ing
Proper battery care is required to maintain maximum avail-able capacity.
Low Battery Indicator:
Flashing low battery icon on display and flashing LED on front panel..
Recharge Rate: 80% in 7.5 hours. 100% in 9 hours.
General
Weight: 10 pounds (4.95 kg) (basic configuration).
Size: 13 x 12.5 x 5.3 inches (33 x 31.8 x 13.5 cm).
Operating:
Temperature*: 0 to 45° C
Humidity* (NC): 15 to 95% RH (30 to 90% with CO2 probe)
Vibration*: MIL-STD 810E
Shock / Drop*: MIL-STD 810E
Altitude: Up to 4572 M (15000 feet)
Transport and Storage:
Temperature: -30 to 70°C (-20 to 70°C with CO2 probe)
Humidity: 15 to 95% RH (non-condensing)
Atmospheric pressure: 860 to 1060 hPa
Shock/vibration: ISTA 1A
Enclosure Protection*:
Solid Foreign object: IEC 529 IP2X
Water: IEC 529 IPX4.
All tests performed per AAMI DF-2 Defibrillation Standard.
Operating Power:
SAED Rhythm Recognition Performance
The DEFI XPRESS SAED algorithm exceeds the requirements of ANSI/AAMI
