HOME >> MEDICINE >> NEWS
Noise-immune stethoscope helps medics hear vital signs in loud environments

November 27, 2006--A new type of stethoscope enables doctors to hear the sounds of the body in extremely loud situations, such as during the transportation of wounded soldiers in Blackhawk helicopters. Using ultrasound technology, the kind used to generate images of internal organs, muscles and unborn fetuses, the new stethoscope design will be presented later this week at the Fourth Joint Meeting of the Acoustical Society of American and the Acoustical Society of Japan, which will be held at the Sheraton Waikiki and Royal Hawaiian Hotels in Honolulu, Hawaii.

Researchers at Active Signal Technologies, Inc., of Linthicum Heights, Md., in collaboration with the U.S. Army Aeromedical Research Laboratory (USAARL) in Fort Rucker, Ala., have developed an ultrasound stethoscope that is nearly impervious to loud noise and is capable of making accurate readings at noise levels up to 120 decibels, similar to the volume experienced at the front row of a rock concert.

Current acoustic stethoscope technology picks up and amplifies vibrations that let doctors hear the heart and lungs. These models become difficult to use effectively around 80 decibels, a noise level comparable to an alarm clock or a busy city street. When noise levels reach 90 decibels, these types of stethoscopes are rendered useless. Modern electronic stethoscopes have raised the maximum tolerable noise level to 90 decibels to 95 decibels by replacing the ear pieces with loudspeaker inserts that provide a better seal with the ear canal and replacing the tubing with electrical cables that do not pick up acoustic noise.

The challenge to build a better stethoscope originated from the Army's Small Business Innovation Research program. For soldiers wounded in combat, the first hour after sustaining an injury is known as the "critical hour," when diagnoses and emergency treatment must take place to give them the best chance of recovery. These soldiers are often transported by helicopter,
'"/>

Contact: Turner Brinton
tbrinton@aip.org
301-209-3136
American Institute of Physics
28-Nov-2006


Page: 1 2 3

Related medicine news :

1. iPods help docs improve stethoscope skills
2. Repetition reverses med students stethoscope shortcomings
3. Device helps physically disabled turn on computer
4. Case study: cross-cultural bioethics training program helps fight African brain drain
5. New drug development facility helps move medicines to market
6. Research shows aerobic exercise helps maintain muscle in elderly
7. Virtual autopsy helps identify drowning as cause of death
8. Topical retinol helps reduce wrinkles associated with natural skin aging
9. Transplanting human gut bugs into mice helps understanding of metabolic system
10. Quick, innovative procedure helps men minimize incontinence after prostatectomy
11. New research helps overcome major CPAP problem

Post Your Comments:
(Date:3/28/2015)... Take a bite of warm, gooey pepperoni pizza, and ... the stomach, ready to break down your meal. In ... run amok, triggering a burning sensation in the chest. ... million Americans have heartburn at least once a month. ... it can be stopped. , Heartburn or acid reflux ...
(Date:3/28/2015)... 28, 2015 The California-based leading wig ... every customer shopping on UniWigs during the Easter Holidays ... a big promotion on April Fools’ Day. , As ... just around the corner. Easter Festival, with religious origins ... a major holiday after Christmas. The best wig provider, ...
(Date:3/28/2015)... NY (PRWEB) March 28, 2015 An ... a problem which could prove critical to organizations that ... testing, a critical aspect of data security, is worsening ... industry data security report, every major category out of ... and penetration testing. “With all the craziness that has ...
(Date:3/28/2015)... Las Vegas, NV (PRWEB) March 28, 2015 ... surgery experiences re-injury, according to research presented today at ... ) Specialty Day. The study examined the long term ... younger. , “We examined survey data from 242 ... noted lead author Justin P. Roe, MBBS, FRACS, from ...
(Date:3/28/2015)... Vegas, NV (PRWEB) March 28, 2015 ... for patients with Type V AC joint injuries, according ... study, presented today at the American Orthopaedic Society for ... personnel returned to duty faster when surgery was not ... patients, with 7 receiving surgical treatment and 17 receiving ...
Breaking Medicine News(10 mins):Health News:Bypass Your Heartburn Worries This Easter With Tylers Coffee 2Health News:UniWigs Is Sending Out Mysterious Gifts During the Easter Holidays 2Health News:Businesses Dealing With PCI Falling Short On Regular Vulnerability Scans and Pen Testing 2Health News:Businesses Dealing With PCI Falling Short On Regular Vulnerability Scans and Pen Testing 3Health News:Businesses Dealing With PCI Falling Short On Regular Vulnerability Scans and Pen Testing 4Health News:Young Athletes at Greater Risk for Re-Injury after ACL Surgery 2Health News:For Type V AC Joint Injuries, Early Surgery May Not Be the Best Approach 2
(Date:3/27/2015)... March 27, 2015 /CNW/ - Covalon Technologies Ltd. (the ... company, today announced the issuance of an aggregate of ... Company and an aggregate of 120,500 stock options to ... will vest over three years and will be exercisable ... price of $1.40 per stock option. About ...
(Date:3/27/2015)... March 27, 2015 /CNW Telbec/ - Russell Williams ... Pharmaceutical Companies (Rx&D), welcomes the 2015-2016 Quebec Budget, noting ... group on the biopharmaceutical industry. However, the association is ... "We commend the government,s intent to strive for ... measures to promote Quebec,s economic ...
(Date:3/27/2015)...   Cypher Genomics, Inc., the leading ... that, compared to a panel of experts, the ... interpretations of whether certain genetic abnormalities were likely ... fraction of the time. Cypher,s Mantis software technology ... analysis in non-invasive prenatal testing (NIPT) by enabling ...
Breaking Medicine Technology:Covalon Announces Issuance of Stock Options 2Quebec 2015-2016 Budget: Rx&D welcomes fiscal discipline and biopharma working group, but the decrease in government spending on medicines is questioned 2Quebec 2015-2016 Budget: Rx&D welcomes fiscal discipline and biopharma working group, but the decrease in government spending on medicines is questioned 3New Data at ACMG Shows Cypher's Software Can Automate Interpretation of Genetic Variants to Advance Non-invasive Prenatal Testing 2New Data at ACMG Shows Cypher's Software Can Automate Interpretation of Genetic Variants to Advance Non-invasive Prenatal Testing 3
Cached News: