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PATHWAY

MR-20 OPERATOR’S GUIDE

CHAPTER 1: PHYSICAL/MECHANICAL OVERVIEW

Connecting Pathway

Electrode(s) to Pathway

Preamplier(s): The Pathway

Preampliers (Part #2583) have three female snap on electrode positions: two labeled

(ACT) for active electrodes and one (GND) for the ground electrode. Verify the male

tabs of the Pathway

Electrodes (Part #6750) are snapped into the corresponding

female snaps of the Pathway

Preamplier (Part #2583).

Skin Preparation: Prepare the skin with an alcohol pad to avoid high impedance

artifact. Wipe dry with a tissue or cloth.

Pathway

Electrode Preparation: With the Pathway

Electrode (Part #6750)

attached to the Pathway

Preamplier (Part #2583), use the white tab on the Pathway

Electrode (Part #6750), to carefully remove the mylar backing being cautious to keep

the hydrogel adhesive strips intact on the surface of the electrode.

Pathway

Electrode Placement: Place the two active (ACT) electrodes over the bulk

of the muscle. Make sure the length of the Pathway

Electrode (Part #6750) is placed

parallel with the muscle bers as shown in Figure 1 below.

Figure 3. Figure 4.

Cable Connections for Orthopedic: Connecting the Pathway

Preamplier(s) (Part #2583) to Pathway

Electrodes (Part #6750)

Example: Electrode Placements for VMO / VL Deciency

Back of Electrode

Hydrogel Strips

Figure 1. The preferred electrode location is between the

motor point (or innervation zone) and the tendinous insertion,

with the detection surfaces arranged so that they intersect as

many muscle bers as possible.

Tendinous insertion

Electrode

Muscle Fibers

GND ACT ACT

Sensing Surfaces of Pathway

Electrode (Part #6750)

Figure 2. Back of Pathway

Electrode (Part #6750) showing

placement of sensing surfaces

and adhesive gel strips.

EMG A Placement

The electrode for EMG A is placed

over the bulk of the VMO

(Vastus Medialis Oblique)

and runs parallel to

the muscle bers.

Leg - Head on view

(Primary Muscle)

EMG B Placement

The electrode for

EMG B is placed over the bulk

of the VL (Vastus Lateralis)

and runs parallel to the

muscle bers.

(Secondary Muscle)

Leg - Side prole view

Brand	PROMETHEUS
Model	PATHWAY MR-20
Category	Control Systems
Language	English

PROMETHEUS PATHWAY MR-20 User Manual

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PROMETHEUS PATHWAY MR-20 Specifications