Coolstar 3.0 Air stimulator, 230V - 50Hz

The caloric stimulator

The Coolstar air caloric stimulator is a medical device manufactured in Belgium by Instrumentation Difra SA. The air caloric stimulator is a device that delivers a flow of air into the auditory canal at controlled rates of flow and temperature, and is designed to test the vestibular function of a patient's body balance system. Vestibular stimulation of the semicircular canals produces involuntary eye movements.

Coolstar

The Coolstar offers numerous possibilities for caloric testing: ease of use, high-precision temperature regulation and unique cooling options. The handle features an otoscope head where a disposable tip can be attached for easy hygiene management. The otoscope handle is also equipped with a magnifying glass and integrated light to inspect the ear canal and tympanic membrane without interfering with stimulation. Coolstar is ideal when water cannot be used for stimulation (eardrum perforation, ...), when water inlet and outlet are not available in the examination room and when ambient room temperature exceeds 22°C.

Temperature setting

The temperature is selected by a simple rotary switch, each of its four positions allowing a temperature preset to be configured. Each temperature can be set from 10°C to 49.8°C, in 0.2°C steps. Default values are 20°C, 30°C, 44°C and 47°C. The temperature is reached within 40 seconds from start-up or any other temperature. A large display shows the actual temperature.

Stimulation time setting

An internal chronometer allows you to select the stimulation time using a second rotary switch. Five stimulation times are available: 40, 60, 80, 100 and 120 seconds, simply by turning the switch. Visual and audible indications on the display help the examiner to perform the caloric test easily and accurately. During the stimulation period, the reaction period and fixation period will be delimited by these visual and audible indications.

Technical specifications

• Input voltage: 230V/50Hz

• Hot and cold air heat stimulator

• Minimum accessible temperature: 10°C if the water temperature in the jar is below 50°C.

• Maximum accessible temperature: 49.8°C

• Temperature stability: +/- 0.3°C

• Air flow: fixed, from 8 to 10l/min, without earmold

• Stopwatch

• Dimensions: 310 x 455 x 115 mm (W x D x H)

Coolstar complies with the EN 60601-1, with the European Directive 93/42/EEC and is certified by Kiwa Dare B.V., Notified Body 1912

Ver. 1.3 - May 2025