Philips Avalon CTS M1351a Features The Avalon Cordless Transducer System (CTS) helps transform labor and delivery, offering mothers and care teams the flexibility they seek by allowing comfortable, continuous fetal and maternal monitoring with exceptional mobility. Avalon CTS helps provide a constant and clear picture of patient status for confident decision-making. Cordless toco transducer: externally measures uterine activity Cordless ultrasound transducer: measures fetal movement and heart rate Bed identifier: matches transducers and base stations for each bed Base station receives transducer signals: and recharges plugged-in transducers Transducer plug and play with automatic screen layout, in combination with Philips fetal monitors, allows focus on patient care, not the system Transducer status indicators: shows how clearly system is working at all times Slot position indicator: helps ensure each transducer is returned to its proper home position Cordless ECG transducer: measures direct fetal ECG or maternal ECG Battery charge indicator: shows status of charge (Batteries operate at least 16 hours Philips Avalon CTS M1351a Specifications Base Dimensions Size mm/(in): width x depth x height 350 x 240 x 75 (13.8 x 9.5 x 3.0 in) Weight 2.5kg/5.5 lbs without transducers Transducer Dimensions Size (diameter) < 10 cm/3.94 in Weight < 140 g/4.8 oz Power Supply Voltages 100 VAC to 240 VAC ± 10% Supply Frequency Range 50 Hz to 60 Hz Consumption 15 VA Base Station Type of Protection Against Electrical Shock: Class I equipment Input Sensitivity Input Sensitivity -110 dBm @ 30dB Signal-to-Noise Ratio Image Rejection Image Rejection > 80dB Ranges Receiving Range (line of sight) approximately 100m/300 ft Antenna Input Impedance 50 Ω Water Ingress Protection Code IP X1 (protection only against vertically falling water drops) Monitor Interface Toco Output Accuracy ± 0,5% per 100 mmHg (not including transmitter) Offset ± 5 Units (not including transmitter) Range 0 to 4V Voltage Range US Voltage range 4mVpp to 4Vpp ECG Voltage range 0.1Vpp to 4Vpp Battery Type Lithium Ion Capacity > 16 hours (> 700mAh) Life > 500 charge/discharge cycles (with new battery, at 25°C/77°F) Transducer Storage Time ≥ 1 year at 25°C/77°F (battery full) ≥ 1 month at 25°C/77°F (battery empty) Recharging Time 100% charged < 3h 66% charged ≤ 1h Forced discharge current approx. 45mA Discharge leakage current in shutdown @ Vbat = 3V, 25°C 20 µA (typical), 70 µA (max) RF Unit Nominal RF Output Power -12 dBm ± 6 dB ERP Carrier Frequency Range See Frequency Bands Minimum Frequency Band Span Per Option 10 MHz Channel spacing 25kHz or 12.5kHz General Transducer Specifications Shock Resistance Withstands a 1m drop to concrete surface with possible cosmetic damage Usability Underwater 0.5m/1.64 ft Water Ingress Protection Code IP 68 (0.5m/1.64 ft immersion for 5 hours) Environmental Temperature Range Charging 0°C to 45°C (32°F to 113°F) Operating 0°C to 45°C (32°F to 113°F) Storage (without battery) -20°C to +60°C (-4°F to 158°F) Storage with battery Depends on initial charge level and temperature (storage time decreases significantly at high (> 45°C/ 113°F) temperatures Humidity Range Operating 5% to 95% relative humidity @ 40°C/104°F Storage 5% to 85% relative humidity @ 50°C/122°F Altitude Range Operating ≤ 3000m/9800 ft Storage ≤ 15000m/49000 ft
General Information About Fetal Monitors Fetal Monitoring Fetal monitoring is extensively used in birthing facilities for measuring fetal well being and assessing labor progress. Electronic Fetal Monitors are used to detect and trace the fetal heart rate and uterine contractions. These are usually monitored at the same time however, each one can be obtained separately. Terminology used for Fetal Monitors Ultrasound(U/S Transducer): A transducer is placed on the abdomen to direct an ultrasonic beam towards the fetal heart and to sense Doppler shifted echoes created by moving cardiac structures. Uterine Activity(Toco or U/A Transducer): Uterine contractions are recorded from a pressure-sensitive device that is placed on the abdomen and held by a lightweight stretchable band or belt. Different features in Fetal Monitors Monitoring Modes: Antepartum: occurring or existing before birth; "the prenatal period”. Parameters to be considered: Fetal Heart Rate(U/S) Uterine Activity(U/A) Intrapartum: Occurring during labor and delivery. Parameters to be considered: Fetal ECG Intrauterine Pressure Catheter (IUPC)