Welch Allyn Tm 286 Autotymp Pure Tone Tympanometry Screener

The Welch Allyn TM 286 AutoTymp offers flexible screening for tympanometry, acoustic reflex measurements and audiometry. This lightweight portable AutoTymp is designed to make detection and documentation of the middle ear pathologies fast and accurate.

This device is equipped with LEDs on the probe which guide the tester through the test. The tympanograms and summary information can be viewed on the clear LCD screen when the test is complete. Test results may be printed on the internal printer. If needed, the ASHA normal box can be shown as a guide on the display and printouts.

Tymp and Reflex

Lpsilateral reflex measurements are easily performed with 226 Hz tympanometry. Available frequencies are 500, 1000, 2000 and 4000 Hz. All reflex results may be displayed and printed. Any combination of ipsi reflex measurements up to 4 frequencies may be selected.

Audiometry

Both automated and manual audiometry are available with the Welch Allyn TM 286. When manual audiometry testing is performed, the operator controls the selection of frequencies, signal format (steady, pulsed and FM), intensity, tone presentation and identification of the hearing threshold values per frequency tested. During automated audiometry, the test protocol is selected in the Program mode and includes frequencies to be tested, signal format, intensity range and scoring rules. When the test begins, the test sequence is controlled by the TM 286 based upon the operation of the optional hand switch of the person being tested.

The test results are displayed as an audiogram on the LCD screen as they become available. Test results may be printed in a tabular or audiogram format. It is possible to store the calibration values for both the TDH and insert phones so that a simple button press selects the transducer and its calibration.

Printing, Storing, and Data Transfer

The built-in printer provides the ability to obtain hard copies of all test results. A maximum of 12 test results can be stored in the TM 286 memory. Alternatively, the test results can be sent to an external printer via the built-in USB port. An external inkjet printer which recognizes the PCL3 or PCL3GUI language format may be selected.

Test results may also be transferred via the second built-in USB port to an external computer for data storage.

Features:

• Screens for tympanometry, acoustic reflex measurements and audiometry
• Lightweight and portable
• LEDs on probe guide the tester through the test
• Tympanograms and summary information can be viewed on the clear LCD screen
• Test results may be printed on the internal printer
• ASHA normal box may be shown as a guide on the display and printouts
• Lpsilateral reflex measurements are easily performed with 226 Hztympanometry
• Available frequencies are 500, 1000, 2000 and 4000 Hz
• Reflex results may be displayed and printed
• Both automated and manual audiometry are available
• Any combination of ipsi reflex measurements up to four frequencies may be selected
• Operator controls the selection of frequencies when doing manual testing
• During automated audiometry, the test sequence is controlled by the TM 286 based upon the operation of the optional hand switch of the person being tested
• Test results are displayed as an audiogram on the LCD
• Test results may be printed in a tabular or audiogram format
• Calibration values may be stored for both the TDH and insert phones
• Built-in printer is included
• Maximum of 12 test results can be stored in the TM 286 memory
• Test results can be sent to an external printer via the built-in USB port
• Test results may be transferred to an external computer for data storage

Specifications:

• Tympanometry Mode - Direction of Sweep: Positive to negative
• Tympanometry Mode - Admittance (Compliance) Range: 226 Hz: 0.0 to 1.5 cm3 or 0.0 to 3.0 cm3
• Tympanometry Mode - Harmonic Distortion: < 3%
• Tympanometry Mode - Pressure Range: +200 to -400 daPa
• Tympanometry Mode - Probe Tone: 226 Hz, ± 2%
• Tympanometry Mode - Rate of Sweep: 600 daPa/sec except near tympanogram peak where sweep rate slows to 200 daPa/sec to provide better definition of peak compliance
• Tympanometry Mode - Sound Pressure Level: 226 Hz: 85.5 dB SPL, ± 2.0 dB, measured in a 2.0 cm3 coupler
• Tympanometry Mode - Sound Pressure Level 226 Hz 85.5 dB SPL, ± 2.0 dB, measured in a 2.0 cm3: Probe Tone 226 Hz, ± 2%
• Tympanometry Mode - Tympanogram Test Time: Approximately 1 second
• Tympanometry Mode - Pressure Accuracy: ± 10 daPa or ± 15%, whichever is greater
• Reflex Mode - Pressure: Reflex measures are set automatically to pressure at peak compliance with an offset of -20 daPa if peak pressure is negative and +20 daPa if peak pressure is positive
• Reflex Mode - Reflex Determination: Compliance change of 0.05 cm3 or greater
• Reflex Mode - Reflex Test Time: 1 to 12 seconds depending upon the number of ipsilateral test frequencies selected (4 maximum) and intensity required
• Reflex Mode - Rise/Fall Time: 5 to 10 msec
• Reflex Mode - Total Harmonic Distortion: < 5% for outputs less than 110 dB HL and < 10% at 110 dB HL
• Reflex Mode - Output Levels: Ipsilateral: 500 and 4000 Hz: 80, 90,100 dB HL; 1000 and 2000 Hz: 85, 95, 105 dB HL
• Reflex Mode - Frequencies: 500, 1000, 2000, and 4000 Hz for ipsilateral stimulation
• Audiometry Mode - External Headset Earphones: 125 Hz: -10 to 50 dB HL; 500 to 4000 Hz: -10 to 90 dB HL; 6000 Hz: -10 to 85 dB HL; 250 and 8000 Hz: 10 to 70 dB HL
• Audiometry Mode - Accuracy1: ± 2%
• Audiometry Mode - Accuracy2: 125 to 4000 Hz ± 3 dB; 6000 and 8000 Hz ± 5 dB
• Audiometry Mode - Continuous: Tone is steady when present bar is depressed
• Audiometry Mode - FM (frequency modulated): Tone is frequency modulated at a rate of 5 Hz, ±5%
• Audiometry Mode - Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, 8000 Hz
• Audiometry Mode - Pulsed: Tone is pulsed at 2.5/sec (i.e., 200 msec ON, 200 msec OFF)
• Audiometry Mode - Total Harmonic Distortion: < 2.5% (125 to 3000 Hz measured acoustically at maximum dB HL; 4000 and 6000 Hz measured electrically)
• Audiometry Mode - Audiometric Headset: Pair External earphones Type 51 cushions (60 ohms impedance). Headband force per ANSI S3.6 and IEC 645 (4.5 N ± 0.5)
• Audiometry Mode - Step Size: 5 dB
• Audiometry Mode - Signal-to-Noise Ratio: > 70 dB in 1/3 octave; less than -10 dB HL for levels less than 60 dB HL
• Audiometry Mode - Rise/Fall Time: 20 to 50 msec
• Voltage: 100 VAC - 240 VAC (±10%)
• Standards and Compliance: UL 60601-1 Medical Electrical Equipment Requirements for Safety; IEC/EN 60601-1 General Requirements for Safety; CSA C22.2 No. 601-1-M90; ANSI S3.39-1987 Aural Acoustic Impedance Admittance (Type 3); IEC 60645-5 Aural Acoustic Impedance/Admittance (Type 2); ANSI S3.6-2004 Audiometers (Type 4); IEC 60645-1 Pure Tone Audiometers (Type 4); GL2005-00014 (ASHA 2005) Guidelines for Manual Pure-Tone Threshold Audiometry
• Dimensions (H x W x D): 4.7" x 12.5" x 14.5"
• Weight: 5 lb. (2.3 kg) - unit and probe