Design of A New Vibration Transducer for Implantable Middle Ear Hearing Devices

2010 ◽  
Vol 5 (5) ◽  
pp. 608-610 ◽  
Author(s):  
Ki Woong Seong ◽  
Min Woo Kim ◽  
Jung Hyun Lee ◽  
Myung Nam Kim ◽  
Jin Ho Cho
Keyword(s):  
Middle Ear ◽  
Vibration Transducer ◽  
Hearing Devices

Biomaterials for implantable middle ear hearing devices

2001 ◽  
Vol 34 (2) ◽  
pp. 289-297 ◽  
Author(s):  
Kenneth J. Dormer ◽  
Rong Z. Gan
Keyword(s):  
Middle Ear ◽  
Hearing Devices

scholarly journals Testing a Method for Quantifying the Output of Implantable Middle Ear Hearing Devices

2007 ◽  
Vol 12 (4) ◽  
pp. 265-276 ◽  
Author(s):  
J.J. Rosowski ◽  
W. Chien ◽  
M.E. Ravicz ◽  
S.N. Merchant
Keyword(s):  
Middle Ear ◽  
Hearing Devices

Implantable Middle Ear Hearing Devices: A Review

2010 ◽  
Vol 31 (01) ◽  
pp. 028-036
Author(s):  
Marc Bassim ◽  
José Fayad
Keyword(s):  
Middle Ear ◽  
Hearing Devices

scholarly journals Proposal of a piezoelectric floating mass transducer for implantable middle ear hearing devices

2005 ◽  
Vol 14 (5) ◽  
pp. 322-330 ◽  
Author(s):  
Chang-Woo Lee ◽  
Min-Kyu Kim ◽  
Il-Yong Park ◽  
Byung-Seop Song ◽  
Yong-Rae Roh ◽  
...  
Keyword(s):  
Middle Ear ◽  
Hearing Devices

scholarly journals Hearing Aid Treatment in Patients with Mixed Hearing Loss. Part I: Expected Benefit and Limitations after Stapes Surgery

2020 ◽  
Vol 25 (3) ◽  
pp. 125-132
Author(s):  
Nina Wardenga ◽  
Victoria Diedrich ◽  
Bernd Waldmann ◽  
Thomas Lenarz ◽  
Hannes Maier
Keyword(s):  
Hearing Loss ◽  
Middle Ear ◽  
Hearing Aids ◽  
State Of The Art ◽  
Treatment Success ◽  
Stapes Surgery ◽  
Pure Tone Average ◽  
Mixed Hearing Loss ◽  
Hearing Devices ◽  
Middle Ear Implants

Objective: The purpose of the present study was to determine the fraction of patients with mixed hearing loss who can or cannot expect benefit from power hearing aids (HAs) after stapes surgery. Design: The audiological outcome of 374 stapes surgeries was used to calculate the patients’ individual postoperative requirements in terms of gain and output of HAs. These requirements were compared to the available gain and output provided by state-of-the-art power HAs at 0.5, 1.0, 2.0, and 4.0 kHz. According to these comparisons, ears were divided into three groups. For G0, required gain and output lay within the corresponding technical limits of the HAs at all frequencies. In G1, one or both requirements could not be fulfilled at 1 frequency. G2 combined all ears where the requirements lay beyond the HA’s technical limitations at 2 or more frequencies. Results: Stapes surgery resulted in an improvement of air-bone gap (ABG) in 84.5% of the cases by 15.7 dB on average. Based on pure-tone average (0.5, 1.0, 2.0, 4.0 kHz), 40.6% of all cases showed an ABG ≤10 dB. 44.9% of all cases did no longer need a HA after stapes surgery. A power HA would fulfill both audiological criteria at all 4 frequencies in 81.6% of cases that needed a HA postoperatively. However, 18.4% would not be sufficiently treatable at 1 or more frequencies (15.0% in G1, 3.4% in G2). Conclusions: The present study identified a subset of patients with mixed hearing loss after stapes surgery that cannot be treated sufficiently with available power HAs. As the residual ABG is an important reason for this lack of treatment success, the advancement of alternative hearing devices that circumvent the middle ear, such as powerful active middle ear implants, is indicated.

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