Wonderful CCAES

The CCAES belongs in prosthetic and orthotic workshops, limb fitting centres and rehabilitation departments where upper limb prostheses are assembled for people with an above elbow amputation. Prosthetists and prosthetic technicians mount it as the elbow and forearm section of the limb, with the upper arm socket above it and the chosen hand below.

Its switch suits wearers who want to set arm position with one clear action. A person lifting a bag onto a table, holding a document against the body or bringing the hand toward the mouth can press the switch on the forearm cylinder to move into flexion, then press again to return to extension. That single control point keeps the sequence easy to teach during early training sessions, when the wearer is still learning to coordinate the prosthesis with the shoulder and trunk.

Adjustable tightness at the elbow lets the fitting team match joint resistance to the individual. A newer wearer with limited shoulder strength may start on a lighter setting, while an experienced user doing steady desk or kitchen work may prefer a firmer hold that keeps the forearm where it was placed. The setting can be revisited at review appointments as strength and routine change.

Free swing serves the time between tasks. Walking through a ward, a home or a workplace, the wearer can let the forearm hang and move with the stride, which keeps the shoulder relaxed and the arm's movement natural.

Hand choice widens the range of cases the unit covers. A cosmetic hand suits a wearer whose priority is appearance, a cable-controlled mechanical hand suits one who wants body-powered grip, and an electric hand suits one moving toward powered grasp, all on the same elbow and forearm assembly.

Position set with one press

Poking the switch on the forearm cylinder moves the arm into flexion or extension. The wearer has one control to learn for arm position, which shortens the early part of prosthetic training.

Elbow resistance tuned to the wearer

Tightness at the elbow joint is adjustable, so the prosthetist can set a light feel for an easy-moving arm or a firm one that holds a placed forearm steady during a task.

Relaxed arm when walking

The elbow joint can swing freely. During walking the forearm moves with the body and hangs naturally, so the limb looks and feels settled between activities.

Forearm turned to the task

Rotation at the elbow lets the forearm be angled to suit the job at hand, from working at a counter to reaching across a desk.

One assembly for the whole section

Forearm cylinder and elbow joint arrive joined. The workshop builds the elbow and forearm portion of the limb around one unit, which keeps assembly and alignment straightforward.

Three routes to a terminal device

The unit mates with a cosmetic hand, a cable-controlled mechanical hand or an electric hand. One elbow and forearm design therefore covers wearers with very different goals for their hand.

Light aluminium build

At 0.55–0.57 kg, the aluminium assembly keeps weight down at the far end of the limb, where every gram is felt by the residual limb and shoulder through a full day of wear.

A simple adjustment to revisit

The one setting that changes over time is elbow tightness. It is reset at review as the wearer gains strength, keeping upkeep focused on a single, familiar adjustment.

Forearm cylinder

The forearm section of the CCAES is a cylinder that carries the switch and links the elbow to the hand. It gives the lower arm its form and provides the mounting end for the terminal device.

Elbow joint

An elbow joint is joined to the forearm cylinder as part of the same assembly. It is where rotation, tightness and free swing all take place.

Switch on the forearm

Set into the forearm cylinder, the switch is poked to perform extension or flexion. Its position on the forearm puts the control on the prosthesis itself.

Flexion and extension selection

Each press moves the arm between its two working positions. Flexion brings the hand up and toward the body, while extension lowers and straightens the arm.

Rotating elbow

The joint rotates, so the forearm can be turned and the hand angled toward the work. Fitting teams use it to place the hand where a task needs it.

Adjustable tightness

Joint tightness can be adjusted at the elbow. The setting governs how much the arm resists being moved, from a light, easy feel to a firm hold.

Free swing

When swinging freely, the elbow lets the forearm move with the body. This state suits walking and standing, when the wearer is not holding anything.

Cosmetic hand compatibility

A cosmetic hand can be mated to the head of the unit for wearers who prioritise a natural appearance.

Mechanical hand compatibility

Mating with a cable-controlled mechanical hand gives the wearer body-powered opening and closing at the terminal device.

Electric hand compatibility

The unit also accepts an electric hand, so a wearer can pair the switch-set elbow with powered grasp.

Aluminium construction

Aluminium forms the unit, giving the forearm and elbow a light, rigid structure suited to daily handling, knocks and carrying loads in the hand.

0.55–0.57 kg mass

The whole assembly weighs 0.55–0.57 kg, or 550–570 g. That figure covers both the forearm cylinder and the elbow joint together.

Item number CCAES

Wonderful identifies this cable control above elbow shell by the item number CCAES, which appears on orders and workshop records.

The CCAES fits the wearer with an above elbow amputation who wants arm position set by one deliberate press and an elbow that can then be held firm, turned or left to swing. It suits prosthetists who build to individual goals, because the same assembly takes a cosmetic, cable-controlled mechanical or electric hand and lets the hand decision follow the person. Its strongest case is in early and mid-stage fittings, where a single switch keeps training simple and adjustable tightness lets the joint grow with the wearer's strength. For the workshop, the forearm cylinder and elbow joint come joined in aluminium at 0.55–0.57 kg, so one light assembly forms the whole elbow and forearm section of the limb.