Stethoscope

Darlyn Salvador presentation in health care

1. STETHOSCOPE DARLYN SALVADOR

2. WHAT IS STETHOSCOPE? A stethoscope is a medical instrument used to listen to sounds produced in the body, especially those that emanate from the heart and lungs

3. Stethoscopes are simple yet effective tools that allow doctors to listen to the internal sounds in a patient’s body. Doctors can use stethoscopes to listen to a patient’s heart, intestines, breathing, and blood flow.

4. The stethoscope is a very important noninvasive tool used by medical professionals and all health care workers and students will be trained in the use of them .

5. Different types of stethoscope

6. FIRST STETHOSCOPE in 1816 A French doctor named Rene- Theophile - Hyacinthe Laennec invented the first stethoscope in 1816 .

7. Laennec stethoscope This cylindrical stethoscope is made with three parts fitting together by wood screw thread and brass tube fitting with an overall length of 12.6 inches and a diameter of 1.5 inches. Both ends are slightly concav

8. Picture after the fresco by Theobold   Chartan in the Sorbonne commemorating the invention of the stethoscope in 1816. The photo on the right shows Laennec examing a young boy by "mediate" auscultation with his stethoscope. The picture is taken fromm a painting by Robert A. Thom, copyrighted in 1960.

9. BINAURAL STETHOSCOPE In the early 1850's there was a rush of designs for a new stethoscope that used both ears. This new 'Bi-aural' or 'Binaural' instrument was felt to be the future of auscultation .

10. The idea belonged to Nicholas Comins , who devised a stethoscope that he described as "a bent tube" that had several hinges, allowing the physician to not have to assume uncomfortable positions during the examination. He offered the suggestion of making his instrument binaural, and may have, as there are only sketches of his instrument .

11. ACOUSTIC STETHOSCOPE Acoustic stethoscopes are familiar to most people, and operate on the transmission of sound from the chest piece , via air-filled hollow tubes, to the listener's ears

12. ELECTRONIC STETHOSCOPE audible sounds are magnified through an amplifier to earphones, of which there may be more than one set, and may be broadcast through loudspeakers, but in both instances the results are mediocre

13. * Referrence http://www.heartdiseasesympton.com/articles/heart-disease-symptom-21.html http://discoverd-world.blogspot.com.au/2011/05/discovery-history-stethoscope.html http://inventors.about.com/gi/dynamic/offsite.htm?site=http://www.antiquemed.com/tableofcon.htm http://www.instabriefs.com/medical-devices/stethoscopes/stethoscopes-fast-facts.php http://www.antiquemed.com/test/binaural_stethoscope.htm