Amplivox Portable High Frequency Tympanometer Otowave 202-H
A portable high frequency tympanometer with a comprehensive range of test functions including user defined 226Hz and 1000Hz probe tone impedance measurements and a user programmable range of both ipsi and contra lateral reflex test measurements at 500Hz, 1kHz, 2kHz and 4kHz.
- Fast, accurate impedance measurements
- 1000Hz tympanometry probe tone (202-H)
- Programmable ipsilateral reflex tests
- Programmable contralateral reflex tests
- Separate admittance, susceptance and conductance measurements (202-H)
- Totally portable
- Intuitive use
- Large graphics display
- User defined results recording options
Features
- Ease of Use: When testing neonates and children, very fast, accurate middle ear measurements are essential. The advanced technology within the Otowave 202-H makes this possible. The Otowave 202-H is also very intuitive to use with on-screen information displayed before, during and after the automatic test
Tympanometry
When using the Otowave 202-H in 226Hz probe tone mode, the compliance peak, compliance peak pressure, gradient and ear canal volume can be measured within seconds. When using the Otowave 202-H in 1000Hz probe tone mode, users can easily select a preferred display by simply pressing the probe function key to switch between:
- Scalar mode: a traditional admittance tympanogram, as above (Y only compensation)
- Vector mode: a tympanogram displaying B-G compensation
- Component mode: the separate admittance (Y), susceptance (B) and conductance (G) measurements are displayed for clinical review
Acoustic reflex measurements
User-defined ipsi and contra lateral reflex test measurements can be easily added to the test sequence to ensure a comprehensive test routine that is completed in the minimum amount of time.
This user programmable acoustic reflex function includes reflex frequency selection, levels and sensitivity. The large display area facilitates a graphical display of the reflex response and a pass/no response result.
Recording results
Results are displayed for review on a large high-resolution graphics display. Results can be:
- Saved within internal memory with a patient identifier
- Printed via an infra-red connection to the optional portable printer or PC designated printer via Tympview PC application
- Transferred via USB to a PC/NOAH database using the optional Amplivox impedance module
- Usage and portability - Lightweight and compact, the Otowave 202-H is designed to be used as a totally portable ‘go anywhere’ tympanometer and can be used with either alkaline or rechargeable batteries. Additionally the Otowave 202-H can be mains powered if preferred. The Otowave 202-H can also easily be used in a static clinical setting, where its small size is of great benefit when clinic space is at a premium.
Tympanometry measurements
- Probe tone level and accuracy: 226Hz +/-2%; 85dBSPL +/-2dB 1000Hz +/- 2%; 79dBSPL +/-2dB (202-H only) over ear canal volume range
- Pressure range and accuracy: +200daPa to -400daPa +/-10daPa or +/-
10% (whichever is larger) over range 0.1ml
to 5m
Specifications
- Power - Mains: 100-240Vac; 50/60Hz
via Amplivox mains adapter
(approved to medical safety standards)
Batteries: 4 x AA (either Alkaline or
NiMH, the latter recharged external to
the instrument)
- Dimensions: Base unit: 190 long x 85 wide x 40 high (excluding connections) Probe: 130 long x 25 (max) diameter
- Direction of sweep: Positive to negative
- Volumetric range and accuracy: 226Hz: 0.2ml to 5ml 1000Hz: 0.1ml to 5ml +/-0.1ml or +/-5% (whichever is larger)
- Analysis performed: Admittance peak level in ml (226Hz) or mΩ (1000Hz) & pressure at peak; Gradient
in daPa (for 226Hz); Ear Canal Volume (ECV) @ 200daPa
Standard
- Test cavities
- Starter pack of disposable ear tips
- Contralateral transducer
- 4 x 1.5V Alkaline AA batteries
- Operating manual and Tympview PC application
- Amplivox NOAH impedance module
- USB cable
- Carrying case
- Mains adapter
