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Below is a color-coded side-by-side comparison of the use of the
Thumper Model 1007 to the use of standard Manually-administered
Chest Compressions. |
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Compression: |
Duration
(Min. 50% systole extremely important for effective resuscitation)(1,
2,
3) |
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Very difficult to maintain 50% systole
because of need to hold force on chest.
(4) |
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Operates consistently at programmed
Systole: Diastole ratio (factory preset at 50:50)
regardless of operator size or physical condition. |
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Magnitude of Sternal Deflection |
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Difficult to measure and control. |
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Consistent and clearly prescribed and measured.
(6) |
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Direction of Force |
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May vary from perpendicular |
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Automatically perpendicular |
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Rhythm and Amount |
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Variable |
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Constant |
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Mattress Deflection |
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Absorbs compressive force, even with a backboard, resulting in
reduced heart compression and output. |
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Base remains stable against the spine as the compressor depresses
the sternum, thus eliminating the effect of the mattress. Thus
all piston compression observed is transferred to the patient, not
the mattress.
(7) |
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Patient Size |
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Difficult if not impossible to effectively compress the obese
patient. |
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4.3" maximum compression stroke and 200 lbs. maximum force allow
resuscitation of obese patients who could not otherwise be
successfully resuscitated. |
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Ventilation: |
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Bag-mask or other volume-limited units typically under-ventilate,
provide little airway pressure control.
(5) |
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Oxygen enriched time-cycled, constant flow ventilator. Blood
pO2 is increased quickly and at safe airway pressures. |
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Compression/Ventilation Synchronization: |
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Excellent coordination between operator required |
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Optimum and automatic |
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Trauma: |
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Cracked ribs and vomitus aspiration common |
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Controlled chest compression and time-cycled, constant flow
ventilation reduce traumatic risks.
(8) |
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Monitoring and Defibrillation: |
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Interruptions necessary for ECG monitoring and defibrillation |
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Thumper need not be removed for monitoring and defibrillation |
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Operators: |
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Number required |
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Typically two |
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One |
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Fatigue |
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Unavoidable |
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Non-existent |
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Safety |
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Operator in ambulance must stand unrestrained and is unprotected. |
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Operator can sit with safety belt fastened. |
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Thumper
Model 1007CC
