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:10/31/2014)... 2014 The Memory Healer review published by ... Lynch, whose father suffered from Alzheimer's disease. , In ... by his father's disease. His father pointed a gun and ... moment when the author of this method understood that he ... The Memory Healer program is based on years of research. ...
(Date:10/31/2014)... 2014 Daily Gossip writes in its Xtreme ... as the fastest fat loss program ever developed. It promises ... month. , There is no wonder after all that this ... time. The new nutrition and workout fat loss program was ... , According to the author of this fat loss ...
(Date:10/31/2014)... Huntsville, Alabama (PRWEB) October 31, 2014 ... and emergency physician, knows all too well the chaos ... ahead for the end-of-life. “The vast majority of Americans ... of their own lives are completely unprepared for the ... like the ListStuffFast app can serve as a catalyst ...
(Date:10/31/2014)... This Method to get a ... for practitioners. , The Hypopresive (aka Hipopressive) ... and Movement specializing in physical rehabilitation. Dr. Marcel ... reeducation that traditional abdominal exercises after pregnancy increased ... etc. , The Hipopressives exercises pull back in ...
(Date:10/31/2014)... (PRWEB) October 31, 2014 At the ... about families narrowly escaping carbon monoxide poisoning in their ... just weeks away, one family-owned, Missouri-based heating and cooling ... to making sure families start the home heating season ... and secure. , Beginning Nov. 1, 2014, E ...
Breaking Medicine News(10 mins):Health News:"Memory Healer" Review Reveals a New Natural Remedy Guide for Managing Memory Loss 2Health News:Xtreme Fat Loss Diet Review Reveals How to Transform Your Body in 25 Days 2Health News:This Thanksgiving or Christmas Family Gathering, Use The New App ListStuffFast to Start "The Conversation" With a Parent That Has No Plan For End-of-Life 2Health News:This Thanksgiving or Christmas Family Gathering, Use The New App ListStuffFast to Start "The Conversation" With a Parent That Has No Plan For End-of-Life 3Health News:Super Models and European Celebrities’ Secret Flat Tummy System Comes to America 2Health News:Super Models and European Celebrities’ Secret Flat Tummy System Comes to America 3Health News:Many Homeowners Missing Key Safety Risks with Home Heating;Missouri-based Company E and Q Announces New Safety Check 2Health News:Many Homeowners Missing Key Safety Risks with Home Heating;Missouri-based Company E and Q Announces New Safety Check 3
(Date:10/31/2014)... Ga. , Oct. 31, 2014  Digirad Corporation ... to PDI, Inc. (Nasdaq: PDII ), a ... of Digirad,s proposal to acquire the company.  ... meaningful discussions regarding a transaction and to operate in ... its cash, or take on additional debt, on acquisitions ...
(Date:10/31/2014)... 31, 2014  Semler Scientific, Inc. (Nasdaq: ... assessment company that develops patented products that assist ... diseases, today reported financial results for the third ... "In the third quarter of ... , M.D., chief executive officer of Semler.  "We ...
(Date:10/31/2014)... , October 31, 2014 Investor-Edge ... MDT ), Abbott Laboratories (NYSE: ABT ... (NYSE: RMD ), and Covidien PLC (NYSE: COV). ... http://investor-edge.com/register . The US markets on Thursday, ... Dow Jones Industrial Average finished at 17,195.42, up 1.30% and ...
Breaking Medicine Technology:Digirad Delivers Letter To PDI, Inc. Responding To PDI's Summary Rejection Of Digirad's Offer To Acquire Company 2Digirad Delivers Letter To PDI, Inc. Responding To PDI's Summary Rejection Of Digirad's Offer To Acquire Company 3Digirad Delivers Letter To PDI, Inc. Responding To PDI's Summary Rejection Of Digirad's Offer To Acquire Company 4Digirad Delivers Letter To PDI, Inc. Responding To PDI's Summary Rejection Of Digirad's Offer To Acquire Company 5Semler Reports Third Quarter 2014 Financial Results 2Semler Reports Third Quarter 2014 Financial Results 3Health Care Equipment Stocks Technical Insight - Medtronic, Abbott Laboratories, Hologic, ResMed, and Covidien 2Health Care Equipment Stocks Technical Insight - Medtronic, Abbott Laboratories, Hologic, ResMed, and Covidien 3Health Care Equipment Stocks Technical Insight - Medtronic, Abbott Laboratories, Hologic, ResMed, and Covidien 4Health Care Equipment Stocks Technical Insight - Medtronic, Abbott Laboratories, Hologic, ResMed, and Covidien 5
Cached News: