Technical Service and Care

If you are having a medical emergency, call 911 or the local emergency # in your locale.

Instruction Manual

Please click here if you would like a copy of our Instruction Manual


Antenna Care

Antennas are used to transfer radiofrequency (RF) energy from the external transmitter through the skin to the implanted receivers and electrodes. The system will not work unless the antennas are affixed to the patient’s skin, directly over the implanted receivers.

Antennas are a durable disposable item. They are warranted for a period of 90 days from the date of shipment, but proper care and gentle handling will make them last longer. It is recommended that antennas be replaced every six months.

It is recommended that patients always have a spare pair of antennas available.

Antennas can be held in place using hypoallergenic adhesive tape. A suggested method for taping is shown to the right. It is recommended that tape location be changed frequently to avoid skin irritation.

A thin layer of polypropylene or similar material may help alleviate skin irritation due to perspiration when placed directly beneath the antenna. Amplitude settings may need to be adjusted accordingly to maintain adequate ventilation.

Alternatively, elastic netting that conforms to body shape, abdominal binders, elastic bandages, or gas permeable dressings such as Tegaderm® can be used.

Antennas that are discolored, damaged, or perform intermittently should be discarded as they cannot be repaired. The following suggestions should help maximize the useful life of an antenna:

  • Antenna wires should be run in a straight line or gently looped between the receiver and the transmitter. Do not bend or kink the wire.
  • The point of greatest stress is where the antenna wire meets the metal connector. Keep this area free from bending or pulling.
  • Wash antennas periodically with warm soap and water, but do not soak. Rinse and allow to dry thoroughly before use.
  • Do not allow the metal connector to become wet.
  • Adhesive buildup from tape or other dressings can be removed with a cloth dampened in rubbing alcohol.
  • Accumulation of dirt or other debris in the antenna connector or antenna socket on the transmitter may affect operation of the system.

Replacement Antenna Orders

Online ordering of antennas is no longer an option. To order replacement antennas, please call 631-864-1600 during normal business hours and select option ’3′ when prompted. Generally speaking, antennas are reimbursable as durable medical equipment. Depending on your policy, prior authorization may be required. If a HCPCS code is requested, please use code E1399.



Antennas are not repairable, however, they may be returned for evaluation. Any antennas which pass visual and electrical inspection will be returned for further use by the patient. Any antennas which fail visual or electrical inspection will be discarded.


There is no scheduled maintenance required for transmitters. The technical services department can provide a backup transmitter for use while the patient’s permanent transmitter is returned for repair. These backup transmitters are provided at no charge during the warranty period and can be rented after the warranty is expired.

Due to production variances, differences in amplitude settings may be evident between a backup transmitter and the patient’s permanent transmitter. It may be necessary to redetermine thresholds following the procedure outlined in the Instruction Manual

Depending on the nature of the repair, a patient’s permanent transmitter may also require a small revision in amplitude settings.

When returning equipment for evaluation or repair:

  • Include the patient’s name and address where the equipment is to be returned.
  • Include a brief description of the problem.
  • Use adequate packing material to prevent damage from occurring during shipment.
  • It is strongly recommended to use a courier which provides tracking information for all shipments. Insurance for the package may be prohibitively expensive and redundant if the equipment is covered under existing insurance, such as a homeowner’s policy.
  • If a transmitter needs repair due to exposure to water or other fluids, please contact our technical services department for special instruction.
  • If equipment is being shipped from outside the United States, please contact our technical services department in advance in order to prevent delays due to customs.

When returning a transmitter for repair, please include the antennas in use when the problem occurred. This will permit complete system evaluation and ensure proper repair.

All shipments should be sent to the following address:

Avery Biomedical Devices, Inc.
Attn: Technical Services Department
61 Mall Drive
Commack, NY 11725 USA


Engineers are available by telephone to assist with troubleshooting and technical support during normal business hours (8 AM to 4 PM Eastern Time, Monday through Friday). At other times, please leave a message and someone will return your call at the earliest opportunity. Requests of a non-urgent nature can be sent to

Refer to the Instruction Manual provided with each system for complete instructions on the operation and troubleshooting of the Avery Breathing Pacemaker System.

For patients experiencing a loss of function or intermittent operation:

  • Use the battery indicator lights on the transmitter front panel to determine if battery replacement is required. The battery indicators should flash during inspiratory periods. If the battery indicator fails to flash after the installation of a battery known to be good, contact ABD for evaluation and repair of the transmitter.
  • Use the antenna indicator lights on the transmitter front panel to determine if the antennas are good and sufficient transmitter output is present. Use a spare, working antenna to troubleshoot between a suspected defective antenna and transmitter output.

Antenna indicators may not flash at very low stimulus amplitudes even though the transmitter and antenna may be functioning properly.


For patients experiencing a decrease in tidal volume:

  • See if effective pacing can be restored at a slightly increased amplitude setting. If the patient is experiencing a temporary increase in threshold, the current amplitude settings may be ineffective.
  • Check for an infection (such as fever, pain, swelling or redness) anywhere in the body. Diaphragm pacing may become ineffective when a patient has any type of infection. Pacing at slightly increased amplitude settings during treatment of the infection may be sufficient to maintain adequate ventilation.
  • Ensure that the patient has not suffered any trauma or other accident which may have caused mechanical damage to the implanted components.