Navigation Links
A middle-ear microphone
Date:4/29/2012

on the cochlea's inner membrane move, triggering the release of a neurotransmitter chemical that carries the sound signals to the brain.

In profoundly deaf people who are candidates for cochlear implants, the hair cells don't work for a variety of reasons, including birth defects, side effects of drugs, exposure to excessively loud sounds or infection by certain viruses.

In a cochlear implant, the microphone, signal processor and transmitter coil worn outside the head send signals to the internal receiver-stimulator, which is implanted in bone under the skin and sends the signals to the electrodes implanted in the cochlea to stimulate auditory nerves. The ear canal, eardrum and hearing bones are bypassed.

The system developed by Young implants all the external components. Sound moves through the ear canal to the eardrum, which vibrates as it does normally. But at the umbo, a sensor known as an accelerometer is attached to detect the vibration. The sensor also is attached to a chip, and together they serve as a microphone that picks up the sound vibrations and converts them into electrical signals sent to the electrodes in the cochlea.

The device still would require patients to wear a charger behind the ear while sleeping at night to recharge an implanted battery. Young says he expects the battery would last one to several days between charging.

Young says the microphone also might be part of an implanted hearing aid that could replace conventional hearing aids for a certain class of patients who have degraded hearing bones unable to adequately convey sounds from conventional hearing aids.

Testing the Microphone in Cadavers

Conventional microphones include a membrane or diaphragm that moves and generates an electrical signal change in response to sound. But they require a hole through which sound must enter a hole that would get clogged by growing tissue if implanted. So Young's middle-ear microph
'/>"/>

Contact: Lee Siegel
lee.siegel@utah.edu
801-581-8993
University of Utah
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Orca ears inspire Stanford researchers to develop ultrasensitive undersea microphone
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A middle-ear microphone
(Date:12/17/2014)... , Dec. 15, 2014 Research and Markets ... "Samsung Galaxy S5 - Home Button Synaptics Fingerprint ... http://photos.prnewswire.com/prnh/20130307/600769 Based ... 5S, Samsung introduces for the first time a fingerprint ...
(Date:12/17/2014)... 2014 Valencell, a leader in performance biometric data ... industry leaders such as Intel, Jabra, Atlas, and Scosche ... products. These products will be showcased at CES 2015, ... . "Our partners choose PerformTek ...
(Date:12/15/2014)... and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) has announced ... 2015-2019" report to their offering. ... a technology used for the identification of individuals. Facial ... person such as nose, jaw edges, mouth, and the ...
Breaking Biology News(10 mins):Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3
... of the marine food chain, albatrosses accumulate toxic contaminants ... A new study has found dramatic differences in contaminant ... in different areas of the North Pacific. Researchers also ... in both species over the past ten years. , ...
... scrubbing off and discarding the outer layer of long-grain ... the first time, scientists in Japan have shown that ... significantly lowers blood pressure in rats whose hypertension resembles ... in the March 8 issue of the Journal ...
... a blueprint for boosting anti-cancer drugs' effectiveness and lowering ... sinker onto the drugs. This extra weight makes the ... Chemotherapy drugs often fall short of achieving their full ... the tumor too rapidly, said the scientists from Duke ...
Cached Biology News:Albatross study shows regional differences in ocean contamination 2Albatross study shows regional differences in ocean contamination 3How nice, brown rice: Study shows rice bran lowers blood pressure in rats 2Weighting cancer drugs to make them hit tumors harder 2Weighting cancer drugs to make them hit tumors harder 3Weighting cancer drugs to make them hit tumors harder 4
(Date:12/25/2014)... 2014 The report “Service Quality Management ... & Provider Type - Global Advancements, Worldwide Forecasts & ... in-depth analysis and forecasting of revenues. , Browse ... pages and in-depth TOC on “Service Quality Management (SQM) ...
(Date:12/24/2014)... , Dec. 24, 2014   BioLife Solutions , Inc. ... marketer of proprietary clinical grade hypothermic storage and ... products for cells and tissues  ("BioLife" or the "Company"), ... of Stockholders on May 4, 2015 (the "Annual Meeting"). ...
(Date:12/24/2014)... 23, 2014 SoundConnect’s ... introduce cutting edge communication technology, provide continued education ... This webinar series demonstrates online communication features and ... web conferencing’s most innovative and powerful tools. , ...
(Date:12/24/2014)... December 23, 2014 Nashville Fertility Center announced ... for the American Society for Reproductive Medicine (ASRM), a leading ... medicine. In his new role as treasurer, Dr. Hill ... have a voice in furthering the mission of ASRM. ...
Breaking Biology Technology:Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4BioLife Solutions Sets Date for Annual Meeting of Stockholders 2SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3
... Neogen Corporation (Nasdaq: NEOG ) announces ... Results WebcastWhen: Thursday, March 19, 2009 @ ... Live over the Internet -- Simply log on ... Contact: Terry Maynard of Neogen Corporation, +1-800-234-5333.If ...
... expands to EU, LATAM and AfricaSAINT JOHN, New Brunswick, ... immediate availability of ThyroChek, the rapid test for elevated ... in the European Union. Until now, it has only ... test for adults to the 200,000 physician office labs. ...
... Inc. (Nasdaq: INSM ), a developer of follow-on biologics (FOB) and ... Company Highlights , , ... Insmed entered into a definitive agreement with ... related to Insmed,s follow-on biologics platform. , ...
Cached Biology Technology:SD Canada Announces CE Mark for ThyroChek(R) Adult and NeoNatal Tests 2Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 2Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 3Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 4Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 5Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 6Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 7Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 8Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 9Insmed Announces Fourth Quarter and Full-Year 2008 Financial Results 10
ABgene® supplies a 94kDa ultra-pure recombinant thermostable DNA polymerase obtained by high level expression of the Taq DNA polymerase gene in E. coli....
Rabbit Anti-Mouse Ym1 Polyclonal Antibody,...
ABgene® supplies a 94kDa ultra-pure recombinant thermostable DNA polymerase obtained by high level expression of the Taq DNA polymerase gene in E. coli....
... Analysis of large numbers of samples may ... system which requires minimum operator attention. ... PowerStream software and interface CE 4900. The ... operates in Windows XP and Windows 98 and ...
Biology Products: