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MedRx Avant Polar HIT User Manual

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Summary of Contents for MedRx Avant Polar HIT

  • Page 1 USER MANUAL...

  • Page 2: Table Of Contents

    #0086 www.medrx-usa.com 1200 Starkey Rd., #105, Largo FL 33771 Toll Free: (888) 392-1234 • (727) 584-9600 Fax: (727) 584-9602 • Email: medrx@medrx-usa.com MedRx's Authorized Representative in Europe (Regulatory affairs only) Emergo Europe, Molenstraat 15 2513 BH The Hague, The Netherlands Tel: (31) (0) 70 345-8570 •...

  • Page 3: Introduction

    Please refer to the MedRx Avant Polar HIT Installation Manual for assistance. The scope of this manual is to get you “up and running” with the AVANT Polar HIT System. Please consult the interactive Help System within the software for more detailed information of features and functionality.

  • Page 4: Avant™ Polar Hit™ Software Overview

    NOAH and TIMS 1. Double click the AVANT HIT shortcut 1. Launch NOAH on your Windows Desktop 2. Click the Module Selection icon 3. Click the Measurement Tab 4. Double click the AVANT icon MedRx Avant Polar HIT AH-I-MPHITU-3 – Effective 05/31/2011...

  • Page 5: Avant™ Polar Hit™ Software Options

    HIT measurements. Note: HIT functionality is available in several MedRx products. These screens may vary slightly depending on the product. Consult the interactive help system in the product you are using the HIT MedRx Avant Polar HIT AH-I-MPHITU-3 –...
  • Page 6 Advanced Options The Advanced Options screen allows you to configure your system to meet your individual clinical needs. It also provides MedRx Technical Support with tools for helping you technical issues. Access this screen from the File Menu on the Avant Main Screen as shown to the right.

  • Page 7: Preparing For Testing

    ITE adapter (see figure 2). Ensure that the black o-ring is installed in the 2cc coupler and snap the ITE adapter in place (see Figure 3). Figure 1 Figure 2 Figure 3 MedRx Avant Polar HIT AH-I-MPHITU-3 – Effective 05/31/2011...
  • Page 8 2. Attach the button receiver to the Coupler Adapter and seal with putty (see Figure 6). 3. Snap the Button Receiver Coupler Adapter onto the 2cc Coupler (see Figure 7). Figure 6 Figure 7 MedRx Avant Polar HIT AH-I-MPHITU-3 – Effective 05/31/2011...
  • Page 9 Positioning Hearing Instruments to the Test Chamber The AVANT Polar HIT chamber utilizes two speakers positioned 90 apart. When placing hearing instruments in the chamber, it is critical to place the hearing instrument microphone adjacent to the reference microphone. The center of the sound inlet of the hearing instrument microphone should be between 2mm and 8mm from the center of the reference microphone.

  • Page 10: Making Hit Measurements

    8. Click OK to close this window. After setting your default preferences, simply place the hearing instrument into the test chamber as described in the Avant Polar HIT Installation Manual and click the Auto button then click Start. MedRx Avant Polar HIT...

  • Page 11: Sample Hit Measurements

    Sample HIT Measurements The screenshots below illustrate the Avant Polar HIT representations of the ANSI S3.22-2003 Hearing Instrument Test Battery. The system also supports the IEC 60118-7 2005. OSPL90 Full-On Gain Reference Test Gain Frequency Response Equivalent Input Noise Total Harmonic Distortion...

  • Page 12: Testing Directional Hearing Instruments (Polar Plots)

    Testing Directional Hearing Instruments (Polar Plots) The Avant Polar HIT is unique in its ability to produce manufacturer-quality Polar Plots in your office. This is accomplished using the Avant Polar HIT software and the unique Rotating Test Pad. Attaching Hearing Instruments to the Coupler ITE (In The Ear), ITC (In The Canal) and MIC (Mini Canal) Hearing Instruments Seal acoustic vents.
  • Page 13 Positioning Hearing Instruments to the Test Chamber The AVANT Polar HIT chamber utilizes two speakers positioned 90 apart. When placing hearing instruments in the chamber, it is critical to align them so the primary hearing instrument microphone is perpendicular to the grille of the primary speaker. The Primary Speaker is on your right. Proper positioning for ITE, and BTE hearing instruments are shown below.
  • Page 14 Please refer to the figure below for reference. 7. Follow the screen prompts (circled in red below) to complete the test. NOTE: When the rotational cycle is complete, the button replaces the button. MedRx Avant Polar HIT AH-I-MPHITU-3 – Effective 05/31/2011...
  • Page 15 (180 ), the system is significantly less sensitive to sounds in this position. This type of microphone configuration will provide a patient with noticeable improvement in speech discrimination in noise. MedRx Avant Polar HIT AH-I-MPHITU-3 – Effective 05/31/2011...
  • Page 16 Performing Polar Plot Testing (Automated Directionality Test) The MedRx Polar HIT system uses a unique rotating base to allow the creation of Polar Plots of directional hearing instrument sensitivity. Prior to beginning a Directionality test, place the hearing instrument in the Test Chamber as described in the...
  • Page 17 Note: While in Go To motion, the table can be stopped by clickinng Stop button. The control is available for any test, except the Directionality Test. The Directionality Test controls the table rotation automatically. MedRx Avant Polar HIT AH-I-MPHITU-3 – Effective 05/31/2011...

  • Page 18: Clinical Use Of Polar Plots

    Testing each hearing instrument upon receipt in the Avant Polar HIT chamber provides you with the confidence to know that one of the key features in each patient’s hearing instrument fitting is functioning according to specification before the appointment is made.

  • Page 19: Limited Warranty

    MedRx, Inc is not responsible for problems resulting from installation of unapproved software or hardware. In the event of unapproved software or hardware installed on the system causing a conflict with the AVANT POLAR HIT TM functions, MedRx will service the problem for a fee to be determined at the time of service.

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