Foreword; Product Description; Construction And Function; Definition Of Terms - Otto Bock AxonArm Ergo 12K501 Series Instructions For Use Manual

1 Foreword

INFORMATION
Date of last update: 2022-07-07
► Please read this document carefully before using the product and observe the safety notices.
► Instruct the user in the safe use of the product.
► Please contact the manufacturer if you have questions about the product or in case of problems.
► Report each serious incident related to the product to the manufacturer and to the relevant authority in your
country. This is particularly important when there is a decline in the health state.
► Please keep this document for your records.
The 12K501 AxonArm Ergo is referred to simply as the AxonArm or the product below.
These instructions for use provide you with important information on the use, adaptation and handling of the
product.
Only put the product into use in accordance with the information contained in the accompanying documents sup­
plied.

2 Product description

2.1 Construction and Function

The 12K501 AxonArm Ergo is a myoelectrically locked elbow joint. Locking and unlocking is controlled myoelectric­
ally by means of electrode signals or with a switch.
The AxonArm Ergo helps the patient perform everyday tasks in combination with other prosthetic components of
the Axon-Bus prosthesis solution, such as the 8E500 Michelangelo hand.
A lithium-ion battery integrated into the product provides the required energy.
If the elbow joint is switched off or the battery is depleted, the pull cable can be used to lock and unlock the elbow
joint in any position, even when loaded.

2.2 Definition of terms

AFB (Automatic Forearm Balance)
AFB is a flexion assist in the form of a mechanical gear mechanism in the forearm of the elbow joint. The Automatic
Forearm Balance provides for harmonious movement control, free swing and reduction of energy consumption. It
stores the energy that is released when the arm is extended and uses this to assist with flexion. The degree of flex­
ion assistance can be adjusted to the individual weight of the prosthetic forearm and to different clothing by means
of a dial.
The free swing of the forearm corresponds to the natural movement behaviour of the upper limb while walking.
After extension of the forearm, the vario-gear automatically decouples the forearm from the drive unit so it can
swing freely. The AFB slightly dampens the free swing, thereby making a close approximation of the forearm's
physiological movement behaviour possible.
The product does not consume electrical energy during the free swing. A short muscle signal to flex the product
ends the free swing.
Easy Plug
The Easy Plug is a through-connection for myoelectrically controlled prostheses that is integrated in the elbow
joint.
The connecting cables of the electrodes, switches and batteries are connected to the Easy Plug. Its interior cable
routing minimises the risk of cable breaks.
With the AxonArm, only the 13E500 AxonMaster is connected in the area of the elbow ball. All other plug connec­
tions have no function and are therefore closed with cover caps.
Forearm cable
The forearm cable establishes the electrical connection between the product and the terminal device. The cable is
rolled up in the forearm of the elbow joint on delivery and can be replaced in case of damage.
Lock
Releasing and locking the elbow joint is automated according to operating situations, the applied load and the con­
trol signal generated by the patient by means of the electronically controlled locking drive.
AxonArm Ergo 12K501=*
Foreword
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