AUDIOMETRY & SPIROMETRY
219
• 33665 MT10 - HANDHELD TYMPANOMETER
• 33666 MT10 - HANDHELD TYMPANOMETER WITH IPSI-REFLEX
Professional handheld tympanometer for setting fast and
reliable testing in an easy and cost effective way.
Objective analysis
The MT10 automatic tympanometer is fast and easy to operate
and provides objective measures that cannot be obtained by
otoscopy alone.
Easy and fast tympanograms
Results can be obtained with little efforts and with no
response required from the patient. This is especially beneficial
when dealing with difficult-to-test patients or small children.
Clinical application
The MT10 is also suitable for diagnostic use as tympanometer
and (33666 only) reflex responses are all recorded with great
detail. With MT10 you can detect otitis media (a major cause
of temporary or permanent hearing impairment in children), a
perforated eardrum, cholesteotomas and certain neurological
disorders. You can also check tympanostomy tubes and follow
up on post medical treatments.
Ipsilateral Acoustic Reflex (33666 only)
Four different reflex tests at 500, 1,000, 2,000, 4,000 Hz may
be performed per ear using either fixed or automatic intensity
selection. The test is carried out at the correct pressure level
and the actual reflex characteristics are displayed on the screen
for the operator to view and interpret.
30 patients in memory
The MT10 can hold test results of up to 30 patients in its memory.
This makes it possible to screen a large group of patients and
print out the data at a later time.
PC-integration
Full data-transfer to PC through optional infrared USB interface
and software. Supplied with handle, set of 139 disposable
ear-tips (mixed sizes) and 4x1.5 V, manual in GB, DE, FR, IT, ES,
SE, GR, PT, DK, FI, CZ, PL, LT, EE, HU, NL, NO, IS, RO, MK.
• 33667 INTERFACE USB ADAPTER AND SOFTWARE
• 33668 BET55 SET OF DISPOSABLE EAR-TIPS -
box of 139 mixed sizes
• 33669 SANIBEL MPTII PORTABLE THERMAL PRINTER
• 33670 THERMAL PAPER ROLLS - box of 3
Tympanometry
Analysis performed:
Peak compliance; peak pressure, gradient;
equivalent ear canal volume
Probe tone:
226 Hz
Pressure levels:
+200 daPa to -400 daPa
Ear volume measurement range: 0.2 ml to 5 ml
Sweep speed:
Typically 200-300 daPa/sec;
depending on ear & cavity volume
Pressure limits (safety shut off): +600 to -800 daPa
Reflex measuremets (33666 only)
Measurement mode:
ipsilateral
Reflex tone levels:
500 Hz, 1 kHz, 2 kHz, 4 kHz
Four reflex levels:
100 dB with 5 dB or 10 dB steps;
95 dB, 90 dB or 85 dB with 5 dB steps
Reflex analysis:
Reflex pass/refer at each level tested;
Maximum amplitude of each reflex
(seen on printed report and PC report);
Pressure at which reflex was performed
Data management
Data storage:
30 records. Any recording can be stored once
the tympanogram is viewed
Data held:
Patient Initials, Tympanogram and Reflex
graphs and analysis for Left Ear and/or Right
Ear, Time and Date of recording, which ears
were tested, whether or not the record has
been printed and for sent to a PC, parameters
printed and/or sent to a PC, parameters used
for analysis
Other data
Internal backup power supply: >30 days without main batteries fitted
Battery Lifetime:
Approx. 400 tests (Alkaline AA batteries)
Supported printer:
Martel MCP8830 or Sanibel MPTII
Interface:
Infra-red, IrDA hardware, 9600 baud
Information printed:
Space for patient and clinician's details,
Tympanogram analysis parameters,
Tympanogram, Reflex analysis parameters,
Reflex graph, Serial Number of device,
Last and Next Due Calibration dates
Standards:
Safety: IEC 60601-1. EMC: IEC 60601-1-2
Impedance standard: lEe 60645-5, Type 2
Tympanometer
TECHNICAL SPECIFICATIONS
MT 10 - HANDHELD IMPEDANCE TYMPANOMETER
PA5 PEDIATRIC PORTABLE AUDIOMETER
The MT10 is ergono-
mic to hold but also
offers the possibility of
using the included han-
dle to make it even more
stable and lightweight as it
can rest on your arm during
the measurement.
Size: 19x8x4 cm
excluding probe
(length with
probe 22.5 cm)
Weight 285g
without battery
- -400 to +200 daPa
- ipsi-reflex (33666 only)
- 30 patient memory
- PC integration
• 33601 PA5 AUDIOMETER
• 33602 TDH39 AUDIOMETRIC HEAD PHONE
PA5 is a paediatric portable audiometer with air conduction,
free-field and visual stimulation capabilities. By means of a
headphone it can be also used as a regular screening audiome-
ter for adults. PA5 unique features are primarily meant to help
doctors in evaluating the auditory behaviour in neonates and
infants till 24 months of age by means of specific tests:
Auropalpebral Reflex (APR) test
APR test is a startle reflex of the eyelid elicited by relatively
strong sounds that can be performed on neonates from the day
of birth. It is not based on co-operation with the newborn child.
Conditioned Orientation Response (COR) test
COR test is based on the phenomenon called “Orientation
Reflex” which is a natural reflex movement elicited by sound or
visual stimulation. If the visual stimulation elicits a reflex which
is conditioned by a tone, the child will look towards the visual
stimulation as soon as the tone is heard. If the conditioning is
effective the child will look in the direction of the sound source
even before the visual stimulation is presented.
Visual Reinforcement Audiometry (VRA) test
VRA test is an extension and modification of COR, where the
cooperation with the child is less important. Not only the sound
TECHNICAL SPECIFICATIONS
Frequencies:
500, 1,000, 2,000, 3,000, 4,000 Hz
Stimuli:
Warble tone, NB and WN
Intensities:
Distance 50 cm: 20/30-80dB HL in 10dB steps, for
Warble Tone and WN
10/20-70dB for NB
Distance 16 cm: increases intensity by 10 dB
Weight:
360 g
Dimensions:
LxWxH: 25x7x5 cm
Power supply: 3AA batteries (included)
localisation orientation reflex are accepted but also four other
reactions: reflex reactions (body and face), search reactions,
orientation reactions and spontaneous reactions.
Reflex audiometry and maturation of auditory response tests
Different stimuli are presented in terms of intensity, frequency,
duration, direction of sound in order to elicit proper reactions
like waking-up, crying, astonishment, direct sound localization.
Supplied with GB manual and quick guide (GB, US, DE, FR, SE, IT,
PT, DK, FI, ES, GR, CZ, PL, NL, NO, EE, HU, SL).
33669
