Littmann,Stethoscopes,behavior health Littmann Stethoscopes

The technology behind listening devices has improved dramatically in recent years, giving new hope to those with impairment. While still far from a perfect replacement for the natural ability to hear, these devices give those with a disabili If the vagina is not offering the firm grip to your male partner, he expresses displeasure in lovemaking. You need to tighten the orifice and regain lost elasticity. You can make use of herbal remedies for loose vagina treatment naturally. H

v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}w\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);} Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-priority:99;mso-style-qformat:yes;mso-style-parent:"";mso-padding-alt:0in 5.4pt 0in 5.4pt;mso-para-margin:0in;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"Times New Roman";mso-bidi-theme-font:minor-bidi;}A Stethoscope is an acoustic medicaldevice for auscultation, or listening to the internal sounds of human or animalbody (Chest Examination). It is often used to listen to lung and heart sounds.It is also used to listen to intestines and blood flow in arteries and veins.In combination with a sphygmomanometer, it is commonly used for measurements ofblood pressure. Less commonly, "mechanic's stethoscopes" are used tolisten to internal sounds made by machines, such as diagnosing a malfunctioningautomobile engine by listening to the sounds of its internal parts.Stethoscopes can also be used to check scientific vacuum chambers for leaks,and for various other small-scale acoustic monitoring tasks. A stethoscope thatintensifies auscultatory sounds is called phonendoscope Thestethoscope was first invented in Francein 1816 by René Laennec at the Necker-EnfantsMalades Hospitalin Paris. Itconsisted of a wooden tube and was monaural. However, following several yearsof other refinements made to stethoscopes by other professionals, it was untilin the early 1960s, when: David Littmann, M.D., (1906–1981) was a German cardiologist and Harvard Medical School professor andresearcher, created a new stethoscope that was much lighter than the previous versionsor models and had improved acoustics. Along with Gus Machlup, Dr. David Littmann founded Cardiosonics, Inc. to sellhis stethoscopes. At that time the stethoscope line consisted of two keymodels, the Doctor's stethoscope and the Nurse's stethoscope. 3M acquired thestethoscope company on April 1st, 1967, and hired Dr. Littmann as a consultant.3M currently produces the range of Littmann brand stethoscopes today. Later, in thelate 1970s, 3M-Littmann introduced the tunable diaphragm, a very hard (G-10) glass-epoxy resin diaphragm membranewith an over-molded silicone flexible acoustic surround which permittedincreased excursion of the diaphragm membrane in a "z"-axis withrespect to the plane of the sound collecting area. The name Littmann has sincebecome well known in the medical field for the patented Littmann Stethoscopereputed for its acoustic performances for auscultation. 3M Types of stethoscopesAcousticAcousticstethoscopes are familiar to most people, and operate on the transmission ofsound from the chest piece, via air-filled hollow tubes, to the listener'sears. ElectronicAn electronicstethoscope (or Stethophone) overcomes the low sound levels by electronicallyamplifying body sounds. However, amplification of stethoscope contactartifacts, and component cutoffs (frequency response thresholds of electronicstethoscope microphones, pre-amps, amps, and speakers) limit electronicallyamplified stethoscopes' overall utility by amplifying mid-range sounds, whilesimultaneously attenuating high- and low- frequency range sounds. Recording stethoscopesSomeelectronic stethoscopes feature direct audio output that can be used with anexternal recording device, such as a laptop or MP3 recorder. Fetal stethoscopeA fetalstethoscope or fetoscope is an acoustic stethoscope shaped like a listeningtrumpet. It is placed against the abdomen of a pregnant woman to listen to theheart sounds of the fetus. The fetal stethoscope is also known as a Pinard'sstethoscope or a Pinard, after French obstetrician Adolphe Pinard. MIC Global offers Littmann and a variety of stethoscopes;you can check this page http://www.micglobal.co.uk/stethoscopes-c61.htmlfor more details