Phoenix Interferential Features

Key Features

  • Digital, precise, robust – repeatable and exact control of therapy modes, frequency and amplitude allows effective stimulation

  • Advanced digital electronic circuitry – efficient and powerful – accurately delivers prescribed therapy

  • Powerful – up to 25 volts (50mA) of output controlled by the patient for reassurance and comfortable therapy

  • Most up-to-date, sophisticated electronic engineering – produces a clean and comfortable waveform without spikes or interference to aid patient compliance

  • Use of Texas Instruments Ultra Low Power Microprocessors conserves battery life

  • Multiple pre-programmed therapy protocols – 15 for Duet, 20 for Quartet – allow convenient, optimal care selection by the clinician

  • Multi-lingual – English, Spanish or French – aids patient compliance and understanding

  • Compliance Meter – records therapy sessions and time

Safety Features:

  • System Shutdown – advanced microprocessors monitor device functions and will shut unit down in event of any system failure.  System failure message displayed.

  • Hardware and Software Overload Protection – redundant electronic hardware protects patient from – and constant “polling” of components by operating system detects – unsafe energy levels.

  • Therapy Lockout feature prevents unwanted changes to selected therapy protocol

  • Therapy amplitude (intensity) remains constant as battery power ebbs – maximizing therapy times, useful life of batteries and minimizing amplitude changes

  • Amplitude Limit lock allows clinician to set maximum possible amplitude

  • Amplitude lock (intra-therapy) prevents accidental increase of therapy intensity increasing patient reassurance

  • Mini-USB connector on Eaze™ Cable Lead Wire Assembly shields patient from any accidental external electrical energy

  • Automatic shut down at session’s end prevents accidental overuse

  • Low power warning provides alert

Convenience and Compliance Features:

  • With Therapy Lockout feature patient may start therapy with just “one touch”

  • Pause and resume allows a short interruption without any loss of therapy parameters

  • Uses 2 AA batteries or UL approved AC adapter to reduce cost and maximize convenience with wide availability

  • Optional use of rechargeable AA batteries (rechargeable NiMH batteries and charger included with Duet+ and Quartet)

  • Single cable lead wire(s) - easy patient use, limits tangles with convenient, common 2 mm pin distally

  • Large, easy to read LCD display creates comfortable, satisfied patient

  • Small size and low weight – unobtrusive and portable

Duet and Quartet:  15 Preset Therapy Protocols

·      3 Abrupt Shift Interferential Stimulation Protocols

ό     (1)  1 Hz - 10 Hz / 2 sec.;   (2)  1 Hz - 20 Hz / 6 sec.;   (3)  1 Hz - 30 Hz / 9 sec.

·      2 Ramped Shift Interferential Stimulation Protocols

ό     (1)  1 Hz - 30 Hz / 6 sec.;   (2)  80 Hz - 150 Hz / 15 sec.

·      2 Full Sweep Interferential Stimulation Protocols

ό     (1)  1 Hz - 150 Hz / 6 sec.;   (2)  1 Hz - 150 Hz / 15 sec.

·      3 Dual Therapy (Abrupt Shift/Ramped Shift) Interferential Stimulation Protocols

ό     (1)  1 Hz - 6 Hz / 6 sec. & 80 Hz - 150 Hz / 6 sec.;   (2)  1 Hz - 10 Hz / 6 sec. & 80 Hz - 150 Hz / 6 sec.;   (3)  10 Hz - 20 Hz / 6 sec. & 100 Hz - 150 Hz / 6 sec.

·      4 Neuromuscular Stimulation (NMS) Protocols

ό     Frequency fixed at 50 Hz.  (1)  3 sec. relax (off) & 3 sec. contract (on);  (2)  6 sec. relax & 3 sec. contract;    (3)  6 sec. relax & 6 sec. contract;   (4)  5 sec. relax & 10 sec. contract

·      Continuous Interferential Stimulation Protocol

ό    Frequency adjustable by patient.

Technical Data and Specifications

Therapy Output Channels:          2 Channel (Duet and Duet+) or 4 Channel (Quartet)

Therapy Output Modes:              True Interferential Stimulation and Conventional Muscle Stimulation; and (Quartet only) Russian Muscle Stimulation and Sequential Stimulation

Waveform:                                 Symmetrical biphasic square wave w/ zero net DC component

Carrier Frequency:                     4000Hz (1000Hz or 2500Hz in Russian Stimulation)

Interference Frequency (IF):        4001Hz to 4150Hz adjustable in 1 Hz increments

Net Interferential Frequency:       1 to 150Hz – verifiable

Output Voltage:                         • Duet:  0 - 22.5 volts peak / 0 - 45 volts peak-to-peak, adjustable in 1/10th volt increments

                                             • Duet+:  0 - 25 volts peak / 0 - 50 volts peak-to-peak, adjustable in 1/10th volt increments 

                                             • Quartet:  0 - 25 volts peak / 0 - 50 volts peak-to-peak, adjustable in 1/10th volt increments

Output Current:                          • Duet:  0 - 45 milliamps, adjustable

                                                • Duet+:  0 - 50 milliamps, adjustable

                                                • Quartet:  0 - 50 milliamps, adjustable

Pulse Width:                             125 micro seconds

Preset Therapy Protocols:          15 (Duet and Duet+) and 20 (Quartet)

Power System:                          • Duet:  2 AA alkaline batteries

                                                • Duet+:  2 AA alkaline or 2 rechargeable NiMH or NiCAD batteries; Duet+ supplied with 4 rechargeable NiMH batteries

                                                • Quartet:  2 AA alkaline or 2 rechargeable NiMH or NiCAD batteries; Quartet supplied with 8 rechargeable NiMH batteries

Wall Adapter:                            Includes a UL approved AC adapter; Duet+ and Quartet also include a UL approved AA battery charger

Dimensions:                              3.2” Wide  x  4.8” Long  x  1.1” Thick

Weight:                                     5.9 oz. (Duet and Duet+) and 6.2 oz. (Quartet) including batteries