Amplifiers and preamplifiers including multi-channel amplifiers and preamplifiers, computer controlled amplifiers and preamplifiers; signal processing apparatus, including digital apparatus; computer programs and computer software; computer memory devices including non-volatile memory devices, flash and disc memories, discrete memory devices including memory cards; communication interface apparatus including modems, apparatus for interfacing ISDN (Integrated Systems Digital Network), PSTN (Public Switched Telephone Network), SCSI (Small Computer System Interface), ethernet, HIS (Hospital Information System), RIS (Radiology Information System); video monitoring and/or recording apparatus including video cameras and recorders, infra red cameras, time link video recorders

Scientific instrumentation and electronic apparatus for medical use, medical apparatus; patient monitoring, analysing and/or recording apparatus including digital apparatus; apparatus for investigating, monitoring, analysing, diagnosing and/or recording sleep, sleep related and respiratory disorders, respiratory function and respiration including portable monitoring apparatus; apparatus for investigating, monitoring, analysing, diagnosing and/or recording electrophysiological variables including variables relating to the nervous system, neurology, cardiology and physiology; apparatus for sleep staging; filters including low pass, high pass and notch filters, interface apparatus and sensors for monitoring patient variables including EEG (electroencephalogram), MEG (magnetoencephalogram), CT (computed tomography), EOG (electrooculorgram), EMG (electromyogram), Sa02 (oxygen saturation), CO2 (carbon dioxide), nasal air flow, patient movement including leg movement, thoracic and abdominal respiratory movement, heart rate, body temperature including rectal temperature, blood pressure, pH level, oesophagel pressure, snoring noises, CPAP (continuous positive air pressure) mask pressure, CPAP mask air flow, CPAP titration; radiology imaging apparatus including MRI (magnetic resonance imaging), fMRI (functional magnetic resonance imaging), remote imaging and transmitting apparatus; telemedicine apparatus including equipment for teleradiology, video conferencing, teleconsultation and tele-echo-cardiology; computer goods being goods for medical purposes included in class 10, apparatus for monitoring and/or displaying graphical and/or other data, including plotters and display monitors, video display monitors including CRT (Cathode Ray Tube), and flat panel displays including liquid crystal, TFT (Thin Film Transistor), and plasma displays; testing and/or calibrating apparatus for the above including apparatus for emulating physiological variables; parts and accessories thereof and therefore