0

DIGITAL PEDIATRIC FREE FIELD AUDIOMETER MODEL AP - 2

DIGITAL PEDIATRIC FREE FIELD AUDIOMETER MODEL AP - 2
DIGITAL PEDIATRIC FREE FIELD AUDIOMETER MODEL AP - 2
Price And Quantity
  • 1
  • Pack/Packs
    Product Specifications
    • ENT Surgical Instrument
    Product Description

    DIGITAL PEDIATRIC FREE FIELD AUDIOMETER MODEL AP - 2 

    •  DIGITALLY controlled tones and attenuation 
    • Testing of children from the age of three months
    • can also be used for adults for "Quick-check"
    • Free-free-filed screening audiometry.
    • Available with testing levels from 90dB to 30dB or 80dB to 20dB free filed
    • Warble tone for easy analysis
    • Fully calibrated for free-filed audiometry
    • COR and VRA tests
    • Touch-switches for light and tone
    • L.E.D. indication of attention and frequency
    • one hand operation
    • Automatically switches off if left unused, thus extending battery life.
    • Uses ordinary standard penlite batteries replaceable in the filed by anyone
    • Also works on 220v (OR 110V) AC mains with an ordinary battery eliminator
    • Light weight, hand-held design 
    • Tough vaccum-formed ABS housing for rough handing   
    • Drop-proof
    • Heat-proof

    DESCRIPTION OF THREE TESTS WITH THE PEDIATRIC AUDIOMETER AP - 2

     

    CORAUDIOMETRY

    The DIGITAL pediatric audiometer AP-2 can perform conditioned orientation reflex based on a technique describe by suzuki and ogiba (1961). The phenomenon called "orientation reflex" is not a learned response, but a natural reflex movement elicited by sound or visual stimulation. if the sound visual stimulation elicits a reflex, and the reflex is conditioned by a tone, the child will look towards the visual stimulation, e.g.flashing light; as soon as the tone is heard. if the co conditioning effective the child will look in the direction of the sound source, even before the visual stimulation is presented. the COR method is based on co-operation with the child.

    VRATEST

    The DIGITAL pediatric audiometer AP-2 can perform visual reinforcement audiometry (Liden and kankkunen 1969), which is extension and modification of COR, where the co-operation with the child is less important. Liden and kankkunen accept not oniy the sound localization orientation reflex but also four other reactions; reflex reactions (body and face), search reaction, orientation and spontaneous reactions.

    APRTEST

    The DIGITAL pediatric audiometer AP - 2 can also elicit the Auro palperal reflex (APR) which is a contraction of the muscles surrounding the eyes. The preferred stimulation is 4000 Hz warble tone. 80 db HL intensity level is normal sufficient for most sleeping infants (Downs and steritt, 1967)

    INSTRUMENT CONDITIONING

    When the child has reached age of two to three years, the so called instrument conditioning in testing children can be used i.e.teaching the child to react in certain way on sound stimuli. For this purpose ARPHI has "peep-show" toy based on play-audiometry.

    TECHNICAL SPECIFICATIONS

     Digital selection of frequencyDigital selection of Attenuation 
     LIGHT stimulation3 LEDs arranged in a triangle, flash-speed 5 Hz  
     FREQUENCIES500,1000,2000,4000 Hz warble tone 
     IDENTITIES90,70,50 And 30db free filed hearing loss at 16 cms. and 80,60,40 and 20db free filed hearing loss at 50 cms.  
     WARBLE FREQUENCY5 Hz +- 5% 
     SOUND SOURCEBuilt in loud speaker 
     MAINS OPERATIONcan be operated with an optional 12v battery eliminator  
     BATTERY OPERATION8 standard penlite cells. 
     AUTOMATIC SWITCHES-OFFFor battery conservation and economy 
     TONE AND LIGHT STIMULATIONSilent touch switches 
     

    Trade Information
    • Cash Advance (CA)
    • Contact us for information regarding our sample policy
    • All India
    Contact Us

    Happy Home, 1st floor, B/H RMC, Kanak Road, 23, Karanpara, Rajkot, Gujarat, 360001, India
    Phone :91-281-2232871