zmpczm019000.12.01 emg sensor attachment

EMG Sensor Attachment Manual Sup.doc of 6

Using the Active Electrode with AE-131 DisposableElectrodesAttaching the Active Electrode EMG sensor is easy using the AE-131disposable foam pad. The basic procedure is as follows:

1. Clean the skin site with alcohol.

• You can use an alcohol prep pad or a gauze pad soaked in alcohol.

2. Allow the skin to dry in the air or wipe dry with a tissue.


The Active Electrode has 3 snap contacts on the bottom.

The contact closest to the cable is called the “Common” contact. (It isalso sometimes called the “reference” or “ground”.) The other twocontacts are called “Active” contacts.

An icon on the AE-131 foam pad with a blue circle and a line representingthe sensor cable shows the orientation for the snap connections (seepicture above).

• When the EMG sensor is attached to the foam pad using this guide,then the long blue arrows on the pad show how the foam pad should beattached to the skin over the muscle fibers of the muscle you want tomonitor.

3. Snap the AE-131 foam pad onto the Active Electrode as shown above.


4. For the highest quality recordings, place a thin film of GE-127electrode gel (or other electrode gel specifically intended for EMG,EKG, of EEG recording – do not use ultrasound gel) on the flat side ofthe silver contacts that are going to be placed against the skin.

More gel is not better! Too much gel will squeeze out onto the adhesive.


5. Remove the paper backing from the AE-131 disposable.

6. Affix the disposable to the skin site. Press down with a light, but firm,pressure all around the top side of the white foam backing to makesure that the disposable is in good contact with the skin.

7. With the sensor in place, connect the other end of the cable to theEMG unit.


Using the Active Electrode with NeuroDyne AE-128 SnapLeads and AE-178 TripleStix Disposable Electrodes

The AE-128L Snap Leads are approximately 8” long and have male snapconnectors at one end and female snap connectors at the other. The maleends “snap” into the Active Electrode.

The snap leads allow the Active Electrode to be used with the AE-178TripleStix strip style disposable electrodes or with other electrodesusing industry standard snap connections.

Snap leads are normally supplied in sets with the head of one lead being adifferent color from the other two leads. This “odd” snap is normally usedfor the “ground” or “common” connection that is located closest to wherethe sensor cable connects to the Active Electrode (see picture below).

The AE-128L Snap Leads are approximately 8” long and have a malesnap connector on one end and a female snap connector on the other.

It is often easiest to attach the snap leads to the AE-178 (or otherdisposable electrode) and affix the disposable to the skin beforeconnecting the snap leads to the Active Electrode.

Use the same skin preparation procedure as for the AE-131 disposable:

• Clean the skin site with alcohol.

• Allow the skin to dry in the air or wipe dry with a tissue.

• Attach the snap leads to the disposable electrode, using the “odd”colored snap for the “ground” or “common” contact point. (When thedisposable is configured with three contacts in a row, the “common” isthe middle contact.)

• For the highest quality recordings, place a thin film of GE-127electrode gel (or other electrode gel specifically intended for EMG,


EKG, of EEG recording – do not use ultrasound gels) on the flat sideof the silver contact that is going to be placed against the skin.

• Remove the paper backing from the AE-178 disposable.

• Affix the disposable to the skin site. Press down with a light, but firm,pressure all around the top side of the white foam backing to makesure that the disposable is in good contact with the skin.

• Attach the male end of the snap leads to the Active Electrode sensor.

• To keep the Active Electrode from “flopping around”, a strip ofhospital tape can be draped across the sensor cable where it attaches tothe sensor and affixed to a convenient location on the patient.

• Connect the sensor to the EMG instrument.

AE-128 Snap Leads connected to an AE-178 strip style disposable.Notice that the “odd” colored snap in the middle is used for the“ground” or “common” position between the two active contact points.

The AE-178 foam strip has perforations so that the 3 electrodes may beseparated and spaced independently for situations where a widerplacement or different configuration is desired.

zmpczm019000.12.01 emg sensor attachment

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