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Global Audiological Devices Industry


Major Distribution Channels for Hearing Aid Manufacturers II-34

Amplifon Dominates the Hearing Aid Retail Market II-34

Table 16: Leading Suppliers of Hearing Aids to Amplifon

(2011): Percentage Breakdown of Volume Shipments for

Siemens, GN ReSound and Others (includes corresponding

Graph/Chart) II-35

Table 17: Amplifon's Share in Manufacturer Shipments inPercentage: 2011 (includes corresponding Graph/Chart) II-35Key Public Distribution Contracts for Hearing Devices Worldwide II-35Still Room for Further Consolidation II-35Table 18: Leading Retailers of Hearing Aids Worldwide (2011):Percentage breakdown of Sales for Independent Retail Stores,Public Health Schemes, Manufacturers' Retail Stores, andRetail Chains (includes corresponding Graph/Chart) II-36


Audiology: A Prologue II-37

Human and Technical Aids II-37

Audiological Devices II-37

Classification of Audiological Devices II-37

Hearing Aids II-38

History of Hearing Aids II-38

Types of Hearing Aids II-39

Behind-The-Ear (BTE) II-39

Advantages II-39

Disadvantages II-39

Open-Fit Mini Behind-The-Ear II-39

In-the-Ear (ITE) II-39

Advantages II-40

Disadvantages II-40

In-the-Canal (ITC) II-40

Advantages II-40

Disadvantages II-40

Completely-in-the Canal (CIC) II-40

Advantages II-41

Disadvantages II-41

Broader Classification of Hearing Aids II-41

Conventional Hearing Aids II-41

Programmable Hearing Aids II-41

Digital Hearing Aids II-42

Technology - Analog Vs. Digital II-42

Disposable Hearing Aids II-42

Hearing Aids Batteries II-42

Common Problems Associated with Use of Hearing Aids II-43

Common Cold Affects Functioning of Hearing Aids II-43

Hygiene Problems Associated with Hearing Aids II-43

Prevention of Transmission II-43

Trends in Hearing Aids and Hearing Aids Batteries Market II-43

Measurement/Testing Devices II-44

Otoscopes II-44

Video Otoscopes II-44

Audiometers II-44

Audiogram II-45

Working of an Audiogram II-45

Audiogram Interpretation II-45

Audiometric Tests II-46

Impedance Analyzers II-46

Hearing Aid Analyzers II-46

Other Measurement/Testing Devices II-46

Cochlear Implants II-46

Cochlear Implant Technology II-46

Beneficiaries of Cochlear Implant II-47

Cochlear Implants Found Effective in Children II-47

7. AN INSIGHT INTO THE HUMAN AUDITORY SYSTEM II-48The Hearing Process II-48Nature And Types Of Hearing Loss II-48Determining the Level of Hearing Impairment II-49Hearing Impairments II-49Conductive Hearing Loss II-49Sensor Neural Hearing Loss (SNHL) II-49Noise Induced Hearing Loss II-50Congenital Hearing Loss II-50Common Causes of Hearing Loss II-50Presbycusis II-50Diseases II-51Otitis Media II-51Autoimmune Disease II-51Otosclerosis II-51Meniere's Disease II-51Tinnitus II-51Subjective Tinnitus II-51Objective Tinnitus II-51Treatment II-52Treatment for SNHL II-52Sound Amplification Through Hearing Aids II-52Ear Surgery II-52Stapedectomy II-53Tympanoplasty II-53Ear Tube Surgery and Myringotomy II-53Ear Surgery for Perforated Eardrum II-53Ear Surgery for Tumors II-54Ear surgery for Congenital Ear Defects II-54Other Ear Surgeries II-54Cochlear Implants II-54Tinnitus II-54Hearing Conservation Programs II-55Strategies to Control Noise - Administrative and EngineeringControls II-55Regulatory Steps Initiated in Europe II-55Effective Hearing Conservation Program - Characteristics II-55

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