ProMed EMT-4 Instrucciones De Empleo página 36

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INTRODUCTION
We differentiate between two fundamental types of
pain:
• Acute pain
as a chief symptom can often help the doctor with diagnosis and
the acute pain has a protective function for the patient.
• Chronic pain
can often become part of the illness in itself. A patient suffering from
chronic pain will often suffer for years and experiences changes in
his/her personality structure.
The term "stimulation current therapy" serves as an
umbrella term for the electrical stimulation of nerves
and muscles.
Basic terms in electrical pain therapy
Pulse frequency
Number of pulses per second, measured in Hertz (Hz).
Tens works between 1 and 200 Hz.
Pulse width
The duration of an individual pulse, measured in microseconds.
1µsec. corresponds to 1/1.000.000 second.
Current intensity
Measured in milliamperes 1mA = 1/1000 A.
Tens units work with a maximum of 50 mA.
Modulation
Pulse intensity, pulse frequency and pulse duration are simultaneous-
ly varied.