O

• OCTAVE BAND ANALYSER

• OCTOSON

• OESOPHAGEAL PACEMAKER

• OESOPHAGEAL STETHOSCOPE

• OIL HEATING BATH

• OPEN CIRCUIT

• OPEN DROP MASK

• OPHTHALMODYNAMOMETER

• OPHTHALMOMETER

• OPHTHALMOSCOPE

• OPTOKINETIC DRUM

• ORTHOSIS

• ORTHOVOLTAGE X-RAY SET

• OSCILLATING SAW

• OSCILLOMETER

• OSCILLOSCOPE

• OSCILLOTONOMETER

• OSMOMETER

• OTOACOUSTIC EMISSION PROCESSOR / AUDIOMETER

• OTOSCOPE

• OVERHEAD BABY WARMER

• OXIMETER

• OXYGEN ANALYSER

• OXYGEN BYPASS (FLUSH) CONTROL

• OXYGEN CONCENTRATOR

• OXYGEN FAILURE WARNING DEVICE

• OXYGENATOR