Model 1025T Monitoring & Gating System for non-MR Imaging Systems

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The Model 1025T monitoring and gating system was designed to meet the physiological monitoring and gating needs for anesthetized mice, rats and larger animals in the laboratory, PET, CT, SPECT, Optical and some MR environments. The system consists of data acquisition and processing module located near the animal which is connected to a PC located near the operator console. The PC displays multiple waveforms, measured values, trends and gating pulses. The data Acquisition module is controlled by menu driven software from the PC. Options are available to measure the following parameters:  ECG, respiration (two ways), temperature (two ways), pressure including invasive blood pressure, pulse oximetry and end-tidal CO2. Small Animal Monitoring and Gating System

        MONITORING                        GATING
  • ECG
  • Temperature
  • Respiration
  • Optional parameters
  • ECG
  • Respiratory
  • ECG & Respiratory
  • Auxiliary gate Inputs
 Temperature Control Waveform and Trend Data Acquistion


The animal’s electrocardiograph (ECG) waveform is measured using three leads with sub-dermal needle electrodes, gold disk surface electrodes or radio translucent pads. The waveform is processed to detect R-waves and determine the heart rate.Temperature is measured using a small rectal temperature probe. The temperature measurement can be used in conjunction with a Heater System to regulate the temperature of the animal.  Both air and fluid heater systems are available.  Temperature variations of ±0.2 oC can typically be obtained. A respiration waveform is measured using a small pneumatic pillow placed next to the animal’s abdomen. The waveform is automatically processed to detect inspiration, expiration and respiration rate. Optional modules can be used with the 1025T to provide pulse oximetry, capnography, invasive blood pressure, fiber optic temperature, minimally invasive pressure and ventilation. Auxiliary TTL input channels allow the user to gate from user generated pulses.  Optionally, auxiliary analogue input channels allow the user to acquire, record, display and gate from user generated waveforms. A sophisticated user configured gating algorithm allows gates generated from each measured waveform to be combined to supply a trigger to the imager. The user can control the start, stop and width of each gate. Power is supplied from an external 12 VDC power supply which operates from 100-230 VAC, 50-60 Hz.



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