Thymatron System IV

Electroconvulsive Therapy, Brand: Somatics, LLC. Model: Thymatron System IV. Products of the United States

For treating patients with certain psychiatric diseases that cannot be treated with medicine.

Purpose of Use

For treating patients with certain psychiatric diseases that cannot be treated with medicine.

General Features
·      4 channels of operation.
·      The machine can measure two channel EEG, EMG, ECG and Heart Rate.
·      The dose can be set according to age threshold or physiological response. It is a percentage of energy or mC stimulus charge.
·      Provides maximum stimulation efficiency of 0.5 ms pulse width (or 0.25 ms or 0.3 ms Ultra-Brief) by a program within the machine that automatically adjusts the pulse width and frequency at every dose and the user can choose to control the work themselves.
·      There is an automatic safety warning system. The user can hear the sound while stimulating.

·      Postictal suppress index and seizure are measured to provide information about the seizure and time immediately.

 Technical Features

1.      Built-in 4-channel hard-copy monitor/printer (two channel EEG, ECG, EMG) with frequency, coherence, asymmetry and Power Spectral Analysis.

2.      Continuous display of the Anesthesia Depth Monitor both in the Proposal section and in the section related to the seizures. The Thymatron System IV will display the values ​​of all 3 types of EEG that are significantly related to anesthesia depth level up to 95% Spectral Edge Frequency, Relative Delta power and Median Frequency

3.      Unilateral ECT can be programmed to control the amount of electrical stimulation delivered using the Ultra-Brief progressive therapy of 0.25 ms. or 0.3 ms. pulse width for up to 8 seconds.

4.      Measure EEG Coherence of maximum sustained coherence and time to peak coherence.

5.      Measure EEG Amplitude for sustained EEG power and average seizure energy by separating early, mid- and postictal seizure phase values.

6.      Measure Heart Rate including peak heart rate.

7.      It has a 32-Bit operating system and possible to store EEG data within the machine for up to 10 minutes and can forward data to a computer


EXTENDED LOWER STIMULUS RANGE - ULTRABRIEF STIMULATION

Pulse-width and frequency settings down to Ultrabrief and 20 Hz allow you to deliver stimuli up to 8 seconds long across the entire dosage range, to optimize treatment in accordance with research showing greater efficacy of short-pulse width, low-frequency, extended-duration stimuli (Isenberg et al, 1996; Chanpattana, 2001).

STATE-OF-THE-ART MONITOR/PRINTER

Allows you to monitor EEG1, EEG2, EKG, and EMG (or, choose 4 channels of EEG), plus 2 derived channels: digital heart rate and anesthesia depth index, while providing hard-copy documentation for the patient's chart.

IMPROVED FRONT-PANEL FLEXDIAL© SELECTOR

Lets you select all the traditional Thymatron® functions plus important new ones, including Ultrabrief pulse stimulation and programs that automatically set the most effective combination of stimulus parameters at any stimulus dose you have selected.

EXPANDED, COMPREHENSIVE END-OF-TREATMENT REPORT

Now includes, in addition to the familiar Thymatron® DGx measures, your choice of the following measures unique to the Thymatron® System IV:

·      EEG Coherence measures of maximum sustained coherence and time to peak coherence.

·      EEG Amplitude measures of maximum sustained EEG power, and time to peak power.

·      Heart rate measures, including peak heart rate, a key measure of cerebral seizure duration and quality that reflects the autonomic (brainstem) response to ECT. This is supplemented by continuous digital heart rate monitoring for safety and seizure generalization, with the result printed each second on the recording strip.

EXTENDED SEIZURE ALERT

Because longer seizures generate more cognitive side-effects, may clinicians prefer to terminate seizures that exceed 120 to 180 seconds on the EEG (Abrams, 2002). To advise the clinician that this point has been reached, the Thymatron® System IV provides an intermittent click tone when a user-selected interval has elapsed after the stimulus and monitoring has not been terminated.

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