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:12/11/2014)...  That blood pressure plays a role in human health ... medical term for high blood pressure – was first described ... cuff that,s used in measuring blood pressure was invented in ... about hypertension, its triggers and its effects. In fact, recent ... the best ways to treat it. For example, ...
(Date:12/10/2014)... , Dec. 8, 2014 You,ve been here before: ... but can,t remember your password, site key or the answer ... your first grade teacher? Today, Hoyos ... app that will finally put an end to the ... 1U TM . 1U leverages a user,s smartphone to ...
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Wake Forest Baptist ... education building for its School of Medicine. Funding for ... larger capital campaign that will be publicly launched next ... be located in the former 60 series R.J. Reynolds ... Innovation Quarter. Construction will begin immediately with plans to ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... 2013 The Academy of Medicine, Engineering and Science of ... of Biochemistry at UT Southwestern Medical Center, as one of ... Awards , which recognize rising Texas researchers. Dr. ... oxygen balance in cells, will be honored Jan. 16 during ...
... are among the most elusive and highly prized fishes ... and similar tropical habitats around the world. Bonefish support ... but this fishery is threatened in many areas by ... scrambling to identify and protect critical habitats and identify ...
... is pleased to announce the speakers for the Future ... fifth year and supported by supported by the Burroughs ... investigators at the interface of the physical and life ... 17, 2014, in San Francisco, California as part of ...
Cached Biology News:UT Southwestern scientist honored as rising star in Texas research 2University researchers observe surprising bonefish spawning behavior in the Bahamas 2University researchers observe surprising bonefish spawning behavior in the Bahamas 3
(Date:12/24/2014)... New York (PRWEB) December 23, 2014 According ... the Long Island Affiliate of ITRA Global, the national office ... but steady recovery. This is evidenced by the third ... strong stock market. Low energy costs have held inflation ... The only negative is the housing market remaining soft. , ...
(Date:12/24/2014)... , Dec. 23, 2014 China Biologic ... "Company"), a leading fully integrated plasma-based biopharmaceutical company ... that its majority-owned subsidiary, Shandong Taibang Biological Products ... certification from the China Food and Drug Administration ... facility. As previously disclosed in the Company,s public ...
(Date:12/24/2014)... and NEW YORK , ... from its open-label pilot study of mazindol in children ... Development and Therapy in December 2014 . ... mazindol in children with attention deficit/hyperactivity disorder" ( Konofal ... 2014 Dec 1;8:2321-2332. eCollection 2014 ) shows ...
(Date:12/22/2014)... Dec. 22, 2014 GenomeDx Biosciences today announced ... Cancer Classifier, a genomic test for prostate cancer, was ... men managed by radical prostatectomy without adjuvant therapy. Although ... relatively uncommon, using tumor genomics to identify these men ... is an important advance. The study has been ...
Breaking Biology Technology:ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 2Study Published in European Urology Shows that the Decipher Prostate Cancer Classifier is Predictive of Rapid Metastasis in High-Risk Men who have had Prostate Surgery 3
... REYKJAVIK, Iceland, August 10 deCODE genetics,(Nasdaq: ... the,quarter ended June 30, 2009. A conference call to ... will be webcast live tomorrow,Tuesday, August 11, at 8:00am ... , The financial results presented ...
... BOZEN, Italy, August 10 , ... Health Robotics today announced that it has signed ... Robot. The,agreement enables McKesson to achieve its goal of safely, ... "We are very pleased to have ...
... 10 /PRNewswire-FirstCall/ - Oncothyreon Inc. (Nasdaq: ONTY ) ... sale of approximately 2.28 million shares of its common stock ... stock for gross proceeds of approximately $15.0 million on August ... per unit (each unit consisting of one share and a ...
Cached Biology Technology:deCODE genetics Announces Second Quarter 2009 Financial Results 2deCODE genetics Announces Second Quarter 2009 Financial Results 3deCODE genetics Announces Second Quarter 2009 Financial Results 4deCODE genetics Announces Second Quarter 2009 Financial Results 5deCODE genetics Announces Second Quarter 2009 Financial Results 6deCODE genetics Announces Second Quarter 2009 Financial Results 7deCODE genetics Announces Second Quarter 2009 Financial Results 8deCODE genetics Announces Second Quarter 2009 Financial Results 9deCODE genetics Announces Second Quarter 2009 Financial Results 10McKesson Expands Pharmacy Automation Product Portfolio to Include I.V. Therapy 2McKesson Expands Pharmacy Automation Product Portfolio to Include I.V. Therapy 3Oncothyreon announces closing of $15.0 million registered direct financing 2
These Costar 96-well, flat-bottom polystyrene EIA plates are used for EIAs, ELISAs, and other protein binding assays. Supplied as box of 100 (20 packages; 5 plates per package)....
... Detergent-OUT Kit is a simple high performance ... Removes detergents without significant dilution of ... solution on the Detergent-OUT Spin column and ... are suitable for removing detergent from a ...
... Kit is a simple high performance method ... Removes detergents without significant dilution of protein ... on the Detergent-OUT Spin column and collect ... column is suitable for removing detergents from ...
... microarrays are derived from frozen embedded tissue ... control procedures to ensure the highest quality. ... in one block, sectioned at a thickness ... slides. Sections are large (3-5 mm in ...
Biology Products: