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

by the National Institutes of Health (NIH-DC-006850).

Problems with External Parts on Cochlear Implants

The National Institutes of Health says almost 220,000 people worldwide with profound deafness or severe hearing impairment have received cochlear implants, about one-third of them in the United States, where two-fifths of the recipients are children.

In conventional cochlear implant, there are three main parts that are worn externally on the head behind the ear: a microphone to pick up sound, a speech processor and a radio transmitter coil. Implanted under the skin behind the ear are a receiver and stimulator to convert the sound signals into electric impulses, which then go through a cable to between four and 16 electrodes that wind through the cochlea of the inner ear and stimulate auditory nerves so the patient can hear.

"It's a disadvantage having all these things attached to the outside" of the head, Young says. "Imagine a child wearing a microphone behind the ear. It causes problems for a lot of activities. Swimming is the main issue. And it's not convenient to wear these things if they have to wear a helmet."

Young adds that "for adults, it's social perception. Wearing this thing indicates you are somewhat handicapped and that actually prevents quite a percentage of candidates from getting the implant. They worry about the negative image."

As for reliability, "if you have wires connected from the microphone to the coil, those wires can break," he says.

How Sound Moves in Normal Ears, Cochlear Implants and the New Device

Sound normally moves into the ear canal and makes the eardrum vibrate. At what is known as the umbo, the eardrum connects to a chain of three tiny bones: the malleus, incus and stapes, also known as the hammer, anvil and stirrup. The bones vibrate. The stapes or stirrup touches the cochlea, the inner ear's fluid-filled chamber. Hair cells (not really hair)
'/>"/>

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:12/5/2014)... VIEW, Calif. , Dec. 4, 2014 /PRNewswire/ ... safety has boosted investments in new testing and ... has also given rise to a range of ... by the requirements of Generation Y, which is ... technologies. As a result, product development strategies of ...
(Date:12/4/2014)... 3, 2014  Crossmatch™, a leading provider of ... DigitalPersona ® Pro Enterprise software and U.are.U ... throughout First Bank branch locations in ... and Virginia. First Bank, a progressive community ... North Carolina , selected the Crossmatch biometrics-based ...
(Date:12/3/2014)... , Dec. 2, 2014 As part of ... Inception Technologies is pleased to announce the release of ... customers to collect the workforce data that they need. ... have been left by existing readers. Many such devices ... connectivity and modern technology. Older models force users to ...
Breaking Biology News(10 mins):Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 2Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 3Emerging Technologies Enable Smarter Monitoring of Assets, Push Industrial Testing, Inspection and Monitoring Market 4First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Inception Technologies to Release New Biometric Reader 2
... Rochelle, May 14, 2012 Disruptive Science and Technology ... Mary Ann Liebert, Inc., publishers, has officially released ... PhD, Highmark Distinguished Career Professor, Carnegie Mellon University, ... thorough syntheses and analyses focused on front-line concepts ...
... MO, May 14, 2012Arranging DNA fragments into a genome sequence ... assembling a puzzle except you don,t have the box and ... Sometimes clues from other publicly-available DNA sequences of related organisms ... usefulness depends on how closely related any two sequences are ...
... affect the intensity of its taste? It depends on the ... and colleagues from Brock University in Canada. Their work shows ... an effect on the intensity of sour, bitter and astringent ... published online in Springer,s Chemosensory Perception journal. ...
Cached Biology News:New journal on disruptive science and technology launched by Mary Ann Liebert Inc. publishers 2Researchers look to relatives for clues in quest to develop sources of bioenergy 2Researchers look to relatives for clues in quest to develop sources of bioenergy 3To get the full flavor, you need the right temperature 2
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... Charm Sciences is pleased to announce that ... Aflatoxin M1 in raw commingled milk is the first ... The peer reviewed report of the validation by Technology ... and Fisheries Research (ILVO-T&V) has been published by the ... most toxic aflatoxin and a known carcinogen, can be ...
(Date:12/19/2014)... 2014 Naurex Inc., a biopharmaceutical company leveraging ... of the central nervous system, today announced that ... will present at the 33 rd annual J.P. ... at 3:00 p.m. PST on Tuesday, January 13, 2015, ... Francisco, Calif. About Naurex ...
(Date:12/19/2014)... Calif. , Dec. 19, 2014 Bina Technologies, ... USA) announced today that they have been acquired by ... is a privately held company that provides a ... next generation sequencing (NGS) data for the academic and ... Roche Sequencing Unit, and will continue to focus on ...
Breaking Biology Technology:Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... Z. Yang, Varian, Inc. , ... Chloramphenicol (CAP) is a potent, broad-spectrum antibiotic and ... of serious infections. Its use in meatproducing animals, food producing insects, ... Canada and the European Union. However, the illegal use of CAP ...
... Introduction , ... signaling processes leading to programmed cell death (apoptosis) is of utmost ... or Parkinsons and Alzheimers disease. Here, errors in the signaling cascade ... At the same time, damaged cells that do not enter the ...
... Tran T. Nham Varian Australia Pty Ltd Mulgrave, Victoria, ... , Because of the low detection ... it has been widely used to determine trace and ultratrace levels in ... the ability of the ultrasonic nebulizer to handle samples with significant amounts ...
Cached Biology Technology:Analysis Of Chloramphenicol by Negative Ion Electrospray LC/MS/MS 2Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 2Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 3Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 4Caspase-3 Activation - An Indicator of Apoptosis in Image-Based Assays 5Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 2Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 3Analysis of urine and seawater samples by ultrasonic nebulization with a high resolution ICP spectrometer 4
... is a two color staining method for ... to detect apoptotic cells by flow cytometry. ... required for measuring apoptosis in cells including: ... reagent performance; washing, reaction and rinsing buffers ...
... GT and PowerPac 3000 system, 220-240 V, is ... x 50 cm vertical slab gel format. The ... which is capable of separating nucleic acids with ... chamber (IPC) assembly (IPC and bonded inner glass ...
... PROTEAN Plus overlay agarose is ... to secure IPG strips in place ... tracking dye is incorporated to allow ... is composed of 0.75% agarose in ...
... PowerPac HV high-voltage power supply, with temperature probe, ... of 5,000 V, 500 mA, and 400 W. ... temperature between 0 and 90 degrees C during ... transfer. Power cord and instructions are provided. Dimensions ...
Biology Products: