BioMedical INF Plus Sine Wave Analog Interferential Device

BioMedical INF Plus Sine Wave Analog Interferential Device





BioMedical INF Plus Sine Wave Analog Interferential Device utilizes microprocessor technology with tolerance levels of less than one percent. This device is used for the symptomatic relief and management of chronic (long-term) intractable pain and as an adjunctive treatment in the management of post-surgical and post-traumatic acute pain problems.The device has a timer for the desired treatment time, and operates on four AA batteries or an optional wall adaptor (wall adaptor is not included).

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Item #DescPkg Price 
KINFP 2.75" x 4.5" x 1.5" (6.9cm x 11cm x 3.8cm) Each $60.00


  • BioMedical INF Plus Sine Wave Analog Interferential Device includes:
    - Lead wires
    - 4 electrodes
    - Batteries
    - Instruction booklet
    - Carrying case
  • Three pre-programmed sweeps:
    - 1 to 10Hz used for edema reduction
    - 80 to 150Hz used for pain relief
    - 1 to 150Hz used for total treatment allow for easy set up and patient instruction
  • Portable device that incorporates a sinusoidal wave form
  • Offers bipolar stimulation using 2 electrodes where the interferential stimulation is already mixed or full interferential stimulation with the use of 4 electrodes

More Information

  • Caution:
    - Federal law (USA) restricts this device to sale by or on the order of a physician so licensed by the State.
  • Contraindications:
    - Interferential Stimulation devices can affect the operation of demand-type cardiac pacemakers. Interferential Stimulation is not recommended for patients with known heart disease without a physicians evaluation of risk. Do not stimulate over the eyes or carotid sinus nerves. Do not apply TENS for 1. undiagnosed pain syndromes until etiology is established, 2. electrode placement that causes current to flow transcerebrally (through the head).
  • Warnings:
    - This device should be used only under the continued supervision of a physician. Interferential Stimulation is ineffective for pain of central origin, (i.e. appendicitis, hepatitis). Interferential Stimulation is of no cura-tive value, it is a symptomatic treatment which suppresses pain sensation which would otherwise serve as a protective mechanism on the outcome of the clinical process. Safety of TENS devices for use during pregnancy or delivery has not been established. For external use only. Electronic equipment such as EKG monitors and EKG alarms may not operate properly when Interferential Stimulation is in use. The user must keep the device out of the reach of children.
  • Precautions:
    - Skin irritation may occur under electrodes in isolated cases following long term application. Consult physician if skin irritation develops. The effectiveness of Interferential Stimulation directly depends upon patient selection. Do not immerse device in water or other liquids.
  • Adverse Reactions:
    - Possible allergic reaction to tape or gel. Possible skin irritation or electrode burn under electrode.
  • Note: Requires prescription.





8.1oz (229gm)



Carrier Frequency

4000 Hz, fixed

Interference Frequency

4001Hz to 4150 Hz, adjustable

Difference Frequency

1-150 beats per second, adjustable

Output Current

0-66 milliamps peak to peak with 500 ohm load

Output Voltage

0-33 Volts peak to peak with 500 ohm load


Symmetrical sinusoidal biphasic (INF)

Pulse Width

125 microseconds for each phase

Max. Charge per Cycle

12.5 microcoulombs

Power Source

4 AA batteries or Nova series wall adaptor

Low Battery Indicator

Indicates when batteries are low

3 Frequency Shifts

Continuous, 1-10 Hz over 6 seconds and 80-150 Hz over 8 seconds and 1-150 Hz over 10 seconds



Intensity (adj.)

0-66 mA

Output parameters are across a 500 ohm resistance

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