LYCOS RETRIEVER 
Stethoscope
built 644 days ago
SE 28 inch Stethoscope 2450 is a reliable stethoscope for your general purpose needs. Whether you’re checking for basic blood pressure, or completing a physical assessment, this 28 inch Littmann would get the job done. An EMT had this to say,
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The Welch Allyn Electronic Stethoscope- based upon proprietary technology from Meditron AS- provides superior sound reproduction due to its sensor-based methodology. Other electronic stethoscopes depend upon a microphone for sound reproduction. Unfortunately, no matter the fidelity, microphones pickup ambient noise in the environment transmitted through the stethoscope diaphragm and chestpiece.
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The 3M™ Littmann® Electronic Stethoscope Model 3000 allows you to tune out the room when you turn up the volume. 3M´s new Ambient Noise Reduction technology reduces distracting room noise by an average of 75% (- 12 dB) over the bell and diaphragm operating range. Combine that with amplification up to 18 times greater than the best non-electronic stethoscope and there's less chance you'll miss the sounds you need to hear
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Laennec's friendJacques-Alexandre Lejumeau de Kergaradec was the first doctorto use the stethoscope for fetal auscultation and this technique was discussed by Laennec in his second edtion text on ausculataion. The fetal stethoscopes that emerged usually had a very wide or flaringbell and a wide earplate, which prevented the stethoscope from rocking on the abdomen of the mother during fetal auscultation. Stethoscopes for children tended to be shorter than those for adults and were probably used as either pediatric or obstetrical stethoscopes.
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Reproduction rights are available for Stethoscope illustration. The fee is based on how the image will be used, and the size and complexity of the original art. Get more info on repro rights.
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Stethoscope