1. Introduction
The Chattanooga Primera TENS/NMES Unit with HAN Waveform is a versatile device designed to provide both Transcutaneous Electrical Nerve Stimulation (TENS) and Neuromuscular Electrical Stimulation (NMES) therapies. This unit facilitates a comprehensive approach to pain management and muscle rehabilitation.
TENS therapy utilizes small electrical currents to stimulate nerves, encouraging the body to produce natural pain-relieving endorphins. NMES therapy delivers electrical pulses to stimulate muscle contraction, aiding in the reduction of muscle spasms, toning of weak muscles, and acceleration of the healing process.
The unique HAN TENS Waveform system integrates Dense-and-Disperse modes of stimulation, alternating between 2 Hz and 15 or 70 Hz every three seconds. This method is optimized for maximum opioid peptide dispersion, enhancing pain control.
2. Important Safety Information
This device is intended for purchase and use by Healthcare Professionals Only.
- Cardiac Pacemakers: Do not use this device if you have a cardiac pacemaker, implanted defibrillator, or any other metallic or electronic device.
- Medical Conditions: Individuals with heart conditions should consult with their physician before using this device.
- Pregnancy: Consult a healthcare professional before use if pregnant.
- General Precautions: Always read and understand all precautions and contraindications detailed in the labeling of this device before use to ensure safe and effective application.
3. Package Contents
Upon opening your Chattanooga Primera TENS/NMES Unit package, please verify that all the following components are included:
- Primera TENS/NMES Unit
- Carrying Case
- 9V Battery (1 included)
- Leadwires (set)
- Dura-Stick Electrodes (set)
- Back Support Belt
- User's Manual (this document)
Figure 3.1: The Chattanooga Primera unit packaging, showing key features and benefits.
4. Product Overview
The Chattanooga Primera unit is a compact, handheld device designed for ease of use. It features a clear digital display and intuitive controls for adjusting therapy parameters.
- Program Options: The unit offers an extensive range of pre-set programs, including 8 programs specifically for TENS therapy and 6 programs for NMES therapy.
- Amplitude Range: Both TENS and NMES functions have an amplitude range of 0-80 mA, allowing for precise intensity control.
- Proven Circuitry: This device incorporates a reliable circuit design with over 10 years of proven performance.
Figure 4.1: Front view of the Primera TENS/NMES unit.
Figure 4.2: The Primera unit demonstrating its compact size when held.
5. Setup
5.1 Battery Installation
- Locate the battery compartment on the back of the Primera unit.
- Open the compartment cover.
- Insert the included 9V battery, ensuring correct polarity.
- Close the battery compartment cover securely.
Figure 5.1: Back view of the Primera unit, showing the battery compartment.
5.2 Electrode Connection and Placement
- Connect the leadwires to the Primera unit's output ports.
- Attach the Dura-Stick electrodes to the ends of the leadwires.
- Clean and dry the skin area where electrodes will be placed.
- Apply the electrodes firmly to the skin, ensuring good contact. Refer to your healthcare professional for specific electrode placement guidelines for your condition.
Figure 5.2: Example of electrode placement on the upper back.
6. Operating Instructions
6.1 TENS Therapy (Transcutaneous Electrical Nerve Stimulation)
TENS therapy is used for temporary relief of pain associated with sore and aching muscles in the lower back, upper extremities (arms), and lower extremities (legs) due to strain from normal activities, including exercise.
- Program Selection: The Primera unit offers 8 distinct TENS programs. Consult your healthcare professional to determine the most appropriate program for your needs.
- HAN TENS Waveform: This unique waveform alternates between 2 Hz and 15 or 70 Hz every three seconds, designed to maximize the body's natural opioid peptide dispersion for enhanced pain control.
- Intensity Adjustment: Use the '+' and '-' buttons to adjust the intensity (amplitude) of the electrical current to a comfortable yet effective level. The amplitude range is 0-80 mA.
Figure 6.1: TENS electrode placement on the upper back.
6.2 NMES Therapy (Neuromuscular Electrical Stimulation)
NMES therapy is used to stimulate healthy muscles in order to improve and facilitate muscle performance, including muscle tone.
- Program Selection: The Primera unit provides 6 dedicated NMES programs. Your healthcare professional will guide you on selecting the optimal program for muscle re-education or strengthening.
- Intensity Adjustment: Adjust the intensity using the '+' and '-' buttons to achieve a strong but comfortable muscle contraction. The amplitude range is 0-80 mA.
Figure 6.2: NMES electrode placement on the bicep.
Figure 6.3: NMES electrode placement on the lower back.
7. Maintenance and Care
- Cleaning: Wipe the unit with a soft, damp cloth. Do not use abrasive cleaners or immerse the unit in water.
- Electrode Care: Replace electrodes when they lose their adhesiveness or become dirty to ensure optimal conductivity and hygiene.
- Storage: Store the Primera unit and its accessories in the provided carrying case in a cool, dry place when not in use.
- Battery Replacement: If the battery symbol flashes on/off once every second, it indicates that the battery voltage has fallen below 6.9 volts +/- 0.2 volts, and the battery should be replaced promptly.
8. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Battery symbol flashing | Battery voltage is low (below 6.9V) | Replace the 9V battery. |
| No sensation or weak sensation | Electrodes not making good contact, leadwires loose, or intensity too low. | Ensure electrodes are firmly applied. Check leadwire connections. Increase intensity gradually. Replace old electrodes. |
| Unit does not turn on | Battery is dead or incorrectly installed. | Check battery installation and replace if necessary. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | 36038 |
| Product Dimensions | 10.75 x 7 x 2.5 inches |
| Weight | 0.01 ounces (unit only) |
| Power Source | 1 x 9V battery (included) |
| TENS Programs | 8 |
| NMES Programs | 6 |
| Amplitude Range | 0-80 mA |
| Manufacturer | DJO Consumer LLC |
| Date First Available | July 31, 2016 |
Figure 9.1: Unit dimensions for reference.
10. Warranty and Support
This product is an "Over the Counter" (OTC) device and is not a covered Medicare benefit. Neither Medicare nor private payors will reimburse for the product. It is a "cash-pay" item only.
For specific warranty information or technical support, please refer to the documentation included with your purchase or contact DJO Consumer LLC directly. As this device is intended for healthcare professionals, further support may be available through your medical supplier.
You can also visit the official Chattanooga store on Amazon for additional product information: Chattanooga Store
