Corometrics Model 128 Fetal Monitor - Refurbished

Offering every monitoring need for both the mother and fetus, the Corometrics 128 is a hospital grade twin fetal monitor. The GE Corometrics Series Maternal and Fetal Monitors help clinicians manage labor, delivery, and the recovery for their patients.

Includes Fetal HR for twins, Fetal ECG, Uterus Activity, Fetal SpO₂ (optional), Maternal BP, Maternal SpO2, 3 ea Serial Interface. 

Not Included:

*Available Upon Request*  

Features

• Smart BP Feature: Delays auto determination during contractions.
• Displays Maternal SpO2 (MSpO2) waveforms.
• Vital Signs History feature saves maternal information in memory for quick review or print summary.
• Recovery mode sets the recorder to standby allowing delivery to print only the vital signs and save paper.
• Keyboard option for detailed annotations.
• Software Utility upgrade program to install future feature enhancements.
• Song Player serenades both mother and family to celebrate the new arrival.
• Interface with 340 Telemetry for ambulatory monitoring and Hydrotherapy when used with the Nautilus Watertight Transducers.
• Interface capability with the OxiFirst Fetal Pulse Oximetry system.
• Interface capability with QS Information Systems.
• Weight: 24 lbs (10.9 kg) approximately

Dimensions

• Height: 6.7”, 17 cm
• Width: 16.4”, 41.9 cm
• Depth: 17.3”, 43.9 cm
• Weight: 24 lbs (10.9 kg) approximate

Ultrasound Mode

• Technique: pulse Doppler with autocorrelation processing
• Transducer type: 9-crystal
• Pulse reception frequency: 4 kHz single ultrasound mode, 2 kHz dual ultrasound mode
• Pulse duration: 92 µs
• Transmitter frequency: 1.151 MHz
• Intensity: <5mW/cm²
• Heart rate counting range: 50-210 BPM
• Leakage current: <10 µA at 120-240 VAC, isolated by transducer

FECG Mode

• Technique: peak detecting, beat-to-beat cardiotachometer
• Heart rate counting range: 30-240 BPM
• Heart rate resolution: ±1BPM
• Artifact elimination: switch selectable, ±25 BPM artifact rejection
• Countable input signal range: 15 µV to 2mV peak-to-peak
• Offset voltage tolerance (differential): ±300 mVDC maximum
• Maximum common mode voltage: 20V peak-to-peak
• Preamplifier bandwidth: 1-100 Hz
• Common mode rejection: balanced > 120 dB at mains frequency, with patient cable, unbalanced = 5 kΩ RA or LA: > 110 dB at mains frequency
• Input equivalent noise: < 10µV peak-to-peak
• Input impedance: differential > 10 MΩ, common mode > 20MΩ
• Mains frequency rejection: > 40 dB
• Leakage current: < 60µA at 254 VAC, electrically isolated. Isolation, mains-to-patient: > 4 kVAC
• Leg plate tester jack: simulated r-wave at 120 ± 1 BPM

Fetal Alarms

• (for ultrasound or FECG modes) Audio: alternating 1.5 second chimes (773 Hz and 523 Hz)
• Visual: flashing heart rate numeric
• Limits: user selectable high and low fetal heart rate
• Technical: signal quality
• Tachycardia response time: 5 minutes at 100% limit violation
• Bradycardia response time: 30 seconds at 100% limit violation
• Signal quality response time: 100% signal loss – 1.25 minutes, 70% signal loss – 5 minutes, 65% signal loss – 10 minutes

Fetal Pulse Oximeter Mode

• Technique: spectrophotometry and plethysmography
• Saturation range: 10-100%
• Saturation accuracy: reproducibility is one standard deviation = 4.7%. Nominally, 67 of the measurements across the population will be within ± standard deviation
• Wavelengths: red: 735 µM, nominal; infrared: 890µM, nominal
• Response time: user-selectable: slow and fast averaging modes
• Transmitter frequency: 1.151 mHz

Uterine Activity Mode

• Range: 0-100 mmHg strain gauge, 0-100 relative units tocotransducer
• Resolution: 1 mmHg stain gauge, 1 relative unit tocotransducer
• Bandwidth: dc to 0.5 Hz strain gauge and tocotransducer
• Excitation voltage: strain gauge +4.0 VDC

Maternal BP Mode

• Technique: oscillometric. Blood pressure range: 20-255 mmHg (2.7 – 34 kPa)
• Pulse rate range: 40-240 BPM
• Blood pressure accuracy: ±5 mmHg with a standard deviation no greater than 8 mmHg
• Pulse rate accuracy: ±2 BPM or ± 2% , whichever is greater
• Display/record: systolic, diastolic, and mean pressure; pulse rate

Maternal Pulse Oximeter Mode

• Saturation range: 0-100%
• Pulse rate range: 30-250 BPM
• Saturation accuracy: %SpO2 ± 1 SD: 70-100% ±2 digits, 50-69% ± 3 digits. 0-49% unspecified
• Pulse rate accuracy: ±3BPM

MECG Mode

• Leads: II, III, and I
• Heart rate counting range: 30-240 BPM
• Heart rate resolution: ± BPM
• Heart rate averaging: 1 sec
• Maximum common mode voltage: 20 Vp-p
• Preamplifier bandwidth: 0.6 to 40 Hz
• Common mode rejection: balanced > 80 dB at mains frequency, with patient cable; unbalanced 5 k RA or LA > 50 dB at mains frequency
• Input impedance: differential > 2.5 MΩ; common mode > 10 MΩ
• Mains frequency rejection: >40 dB
• Leakage current: < 60 µA at 254 VAC, with cable, electrically isolated
• Alarms: Audio: alternating 1.5 seconds chimes, Visual: flashing heart rate numeric or message, Limits: user-selectable high and low maternal heart rate, technical: leads off

Power Requirements

• Line voltage: 100/120/220/230/240 VAC
• Line frequency: 50/60 Hz
• Power consumption: 100W/0.4 A maximum

Literature

• Corometrics 120 Series Manual