Combo unit: Viola - Inventis
Viola is a combo unit that integrates a screening middle ear analyzer offering ultrafast and reliable tympanometry and reflex tests with a diagnostic audiometer capable of performing threshold and speech examinations in AC and BC.
THE MODELS
Viola has a very small footprint, just 2 kg of weight that allows to carry the entire diagnostic station in a small suitcase. Viola is available in two models: Basic and Plus. The following table is an overview of the tests available on each version.
EMBEDDED SPEECH MATERIAL
No more external player headaches! Viola Plus features an integrated flash memory for storing your speech material. The screen displays the word currently being pronounced.
| BASIC | PLUS | |
|---|---|---|
| Automatic tympanometry | Yes | Yes |
| Automatic acoustic reflex thresholds | Yes (Ipsi/Contra) | Yes (Ipsi/Contra) |
| Reflex test with fixed intensity | Yes (Ipsi/Contra) | Yes (Ipsi/Contra) |
| Reflex test with increasing intensity | Yes (Ipsi/Contra) | Yes (Ipsi/Contra) |
| Quick tests (tymp. + reflex tests) | Yes (2 tests) | Yes (2 tests) |
| Acustic reflex decay | No | Yes (Ipsi/Contra) |
| Pure tone audiometry | Yes | Yes |
| Speech audiometry | No | Yes |
| AVAILABLE TESTS |
Only Viola Plus
|
|---|---|
| MIDDLE EAR ANALYZER SPECIFICATIONS | |
| PROBE TONE | Frequency: 226 Hz Level: 85 dB SPL (@ 226 Hz) |
| COMPL. RANGE | 0.2 ÷ 8.0 ml (@ 226 Hz) |
| PRESSURE SYSTEM | Rotary type pump with endless flow |
| TYMPANOMETRY | Viewing mode: absolute or compensated Single scan User selectable pressure range Maximum range: -600 to +400 daPa Safety limits: -800 daPa and +600 daPa Available rates: 50, 100, 200, 300 daPa/sec and AUTO (100-300 daPa/sec) Auto start feature |
| ACOUSTIC REFLEX TEST | Ipsilateral and contralateral stimulation Stimulus ON-Time: selectable from 0.5s to 2.5s Stimulus OFF-Time: selectable from 0.5s to 2.5s Three different tests available:
|
| ACOUSTIC REFLEX DECAY (VIOLA PLUS ONLY) | Ipsilateral and contralateral stimulation Test duration: 10 sec or 20 sec (selectable) |
| QUICK TESTS | Two user programmable Quick tests available Each test consists of a sequence of
|
| AVAILABLE STIMULI AND MAXIMUM LEVELS | Attenuator step: 5 dB Stimuli: 250, 500, 1k, 2k, 3k, 4k Hz |
| AUDIOMETER SPECIFICATIONS | |
| AVAILABLE SIGNALS |
Only Viola Plus:
|
| SIGNALS SPECIFICATION | Attenuator step: 5 dB Presentation: Continuous, Pulsed (0.5, 1 and 2 Hz) Warble: 5 Hz sin wave modulating signal |
| AVAILABLE OUTPUTS AND TRASDUCERS | AC: TDH-39 / DD45 headphones, ER-3C/ IP30 insert earphones BC: B-71 bone vibrator Insert masking earphone: IME-100 |
| PATIENT-OPERATOR COMMUNICATION | Talk over: built-in or external microphone Talk back (Viola Plus only): through built-in speaker or monitor headset (included); patient microphone included Patient response trigger |
| MONITOR SIGNAL (ONLY VIOLA PLUS) | Both channels monitored through the built-in speaker or monitor headset (included) |
| DEVICE SPECIFICATIONS | |
| PRINTER | Optional integrated thermal printer Paper size: 112 mm |
| CALIBRATION | Validity: 12 months All the parameters set through the device software |
| COMPUTER INTERFACE | Connection: USB (driverless) Compatible software: Inventis Maestro |
| DISPLAY | Type: Graphical color TFT LCD Size: diagonal 4.3”, 95 mm x 54 mm Resolution: 480 x 272 |
| POWER SUPPLY | Without integrated printer: With integrated printer: |
| MECHANICS | Without integrated printer: With integrated printer: |
| FREIGHT PACKING | Size (WxDxH): 47 x 42 x 35 cm / 18.5 x 15.8 x 13.8 in Gross weight (without printer): 4.3 Kg / 9.48 lbs Gross weight (with printer): 4.8 Kg / 10.58 lbs |
