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Increased Low Frequency Gain for Open Fittings Using PVC Foam Filters

IP.com Disclosure Number: IPCOM000199639D
Original Publication Date: 2010-Sep-23
Included in the Prior Art Database: 2010-Sep-23
Document File: 1 page(s) / 138K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

Existing open and closed domes used with life tubes do not provide an adequate gain for severe hearing loss categories. In the following a new solution is introduced which uses foam filter domes made of PVC (Polyvinyl Chloride), as depicted in Figure 1. Those PVC domes are able to filter and to prevent low-mid frequencies.

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Increased Low Frequency Gain for Open Fittings Using PVC Foam Filters

Idea: Ram Bhagvati Subramanium, SG-Singapore; Subramanian Bashkaran, SG-Singapore; Jeffrey

Toh, SG-Singapore

Existing open and closed domes used with life tubes do not provide an adequate gain for severe

hearing loss categories.

In the following a new solution is introduced which uses foam filter domes made of PVC (Polyvinyl

Chloride), as depicted in Figure 1. Those PVC domes are able to filter and to prevent low-mid

frequencies. Thus the foam prevention helps to provide higher amplification; this leads to a better care

for severe hearing losses.

The proposed solution can advantageously be used to provide higher frequency gain. The proposed

system fits in existing tubing systems.

Figure 1: PVC foam filter inside the ear

© SIEMENS AG 2010 file: 2010J15100.doc page: 1

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