title: Development of a digital hearing aid to meet the Brazilian Government's Ordinance 587 (APAC).
abstract: The treatment of sensorineural hearing loss is based on hearing aids, also known as individual sound amplification devices. The hearing aids purchased by the Brazilian Government, aiming at fulfilling public policies, are based on dedicated components, which bring about benefits, but also render them expensive and may impair repair services after manufacture's warranty expires.
  
  
  OBJECTIVE
  to design digital behind-the-ear hearing aids built from standardized components coming from the very supply chain of these manufacturers.
  
  
  METHODS
  experimental.
  
  
  METHODS
  to identify the supply chain of these manufacturers, request samples and set up hearing aids in the laboratory.
  
  
  RESULTS
  The developed hearing aids did not show lesser electroacoustic characteristics when compared to those acquired by the Government, also being tested by the same reference international technical standard.
  
  
  CONCLUSIONS
  It is possible to develop digital behind-the-ear hearing aids based on off-the-shelf components from hearing aid manufacturers' supply chain. Their advantages include low operational costs - for acquisition (with clear advantages for the Government) and service (advantage for the patient).
authors.affiliation: Medical School of the Sao Paulo University, Brazil.
authors.forename: Silvio Pires
authors.initials: SP
authors.lastname: Penteado
authors.forename: Ricardo Ferreira
authors.initials: RF
authors.lastname: Bento
mesh_terms: D001938:Brazil; D004867:Equipment Design; D035082:Federal Government; D033161:Government Regulation; D006310:Hearing Aids / Q000191:economics / Q000592:standards*; D034381:Hearing Loss / Q000628:therapy*; D006801:Humans; D012015:Reference Standards