Stethoscope (Greek: stethos, chest and skopeein, check) is an acoustic medical device for checking the sound in the body. He used to hear heart and breathing, although he also used to hear the intestine and bl
ood flow in the arteries and the "vein".
Stethoscope found in France in 1816 by René-Théophile-Hyacinthe Laennec. It consists of a wooden tube is empty. It is said he invented the stethoscope so that he does not need to put his ear on the French woman's breasts. It is unclear whether Laennec trying to avoid it, or to avoid the embarrassment of patients. However, people say that "Necessity is the mother of invention".
There are two types of stethoscopes: acoustic and electronic.
Acoustic stethoscope most commonly used, and operated by channeling the sound from the chest, through an empty tube of air, the listener's ear. Section "chestpiece" usually consists of two sides that can diletakaan the patient's body to make it sound; a diaphgram (plastic disk) or "bell" (empty bowl).
Acoustic stethoscope most commonly used, and operated by channeling the sound from the chest, through an empty tube of air, the listener's ear. Section "chestpiece" usually consists of two sides that can diletakaan the patient's body to make it sound; a diaphgram (plastic disk) or "bell" (empty bowl).
If diaphgram placed in the patient, body sounds vibrate diaphgram, creating acoustic pressure waves that run up to the listener's ear tubes. When the "bell" is placed in the skin of the patient's body directly getarakn produces acoustic pressure waves that went into the listener's ears. Bell channeling low frequency sounds, while the frequency channel diaphgram higher voice. Two-sided stethoscope was invented by Rappaport and Sprague in the early 20th century. The problem with acoustic stethoscopes is the sound level is very low, making diagnosis difficult.
Electronic stethoscopes overcome the low sound levels by strengthening the body's voice. Currently, there are several companies offer electronic stethoscopes, and maybe in a few years, the electronic stethoscope will be more common than an acoustic stethoscope.
Stethoscope is used as a tool to diagnose certain diseases. Stethoscope can channel a certain sound and mute the others. Before the stethoscope was found, doctors put his ear close to the patient's body hoping to hear something.
Stethoscope is often considered a symbol of physician work, because doctors often seen or depicted with a stethoscope hanging around his neck.
Stethoscope is also used by mechanics to isolate a particular sound from the engine to diagnosis.
Electronic stethoscopes overcome the low sound levels by strengthening the body's voice. Currently, there are several companies offer electronic stethoscopes, and maybe in a few years, the electronic stethoscope will be more common than an acoustic stethoscope.
Stethoscope is used as a tool to diagnose certain diseases. Stethoscope can channel a certain sound and mute the others. Before the stethoscope was found, doctors put his ear close to the patient's body hoping to hear something.
Stethoscope is often considered a symbol of physician work, because doctors often seen or depicted with a stethoscope hanging around his neck.
Stethoscope is also used by mechanics to isolate a particular sound from the engine to diagnosis.
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