Products

ACR Myoelectric Hand Controllers

ACR prosthetic hand control systems use pattern recognition technology to discriminate between the "shape" of different patterns detected from electrodes sited on the stump. The patterns are independent of the strength of the signal and therefore require low levels of cognitive effort. Each system is trained to recognise the specific pattern of individual users, and signal strength is employed to provide proportional control of hand speed.

The Single Electrode System A pattern recognition control system that operates from a single electrode for voluntary proportional open and close hand actions.	Two training patterns from a single electrode
The Dual Electrode System A pattern recognition control system that operates from two electrodes for voluntary proportional open and close hand actions together with voluntary proportional wrist rotation in both directions.	Four training patterns from two electrodes

Both controllers are able to drive powered hands currently sold in the marketplace

Advantages of ACR Controllers over Conventional Control Systems

Multiple actions obtained from either one or two electrodes without the need for co-contraction
Low cognitive effort by the user ensures easy use
Full proportional control on all actions

Clinical Software

The ACR clinical software sits on a laptop or PC and is connected to the controller via an opto- isolated serial interface unit. The software has been designed for ease of use by the prosthetist.

Once the suitable patterns have been saved the system is programmed in a matter of seconds to recognise them. A simulation mode allows the user to practice on the system and can see at a glance how close their real-time patterns match the training data and when recognition is achieved.

Pattern recognition simulation

The simple tool allows the prosthetist to ascertain the suitability of the patient to use this technology prior to purchase of the prosthetic hardware.

Electrodes

The ACR controllers require specially designed and developed ACR electrode(s) to be fitted.

Under Development

Portable Early Warning Diagnostic System for Predicting Heart Attacks

The Portable Early Warning Diagnostic System uses pattern recognition technology to identify and respond to subtle changes in the body's normal parameters leading up to a heart attack or coronary problem.

Non-invasive miniature sensors are attached to parts of the body and monitor vital bodily parameters and communicate wirelessly to a pattern recognition unit also located on the body.

The system is trained to recognise normal conditions but will provide early warning if combinations of parameters indicate a coronary risk such as potential heart attack or arrhythmia situation. The system provides a warning which can range from an audio signal through to automatic call up of the emergency services.