If it’s time car physical effort or need out at the doctor’s office, the doctor may use a number of tools to determine the current state of overall health. You will be more than likely that your doctor will use otoskopu to looked into your auditory canals, scale, which will check your weight, hammer odruchowego to test neurological abnormalities, and a stethoscope to listen to heartbeat and respiration.
This stethoscope, which is the most associated with a trip to the doctor’s office, especially for children who need regular checkups. Regardless of the situation, the stethoscope is a necessary part of the Arsenal of medical tools a doctor has at his disposal.
The stethoscope is an acoustic medical device for listening to internal sounds of a human or animal body parts. This action to listen is often called the audition. The doctor or nurse will often use a stethoscope to listen to any rhythms of the heartbeat of the person, breathing disorders, disorders of pulmonary function, bowel sounds and blood pressure monitoring.
Stethoscopes consist of three basic parts, including thorax, handsets and headsets. Part of the chest includes both a diaphragm and bell. The membrane consists of a plastic piece inside the silver piece of metal. This silver metallic object actually suffered by the patient. Ringtone detects sounds at lower tones and a membrane detects it on high tones. Pipe, usually made from a combination of durable rubber and metal. Combines a piece of the chest with the headset.
Tube is primarily responsible for the transfer of sounds recognisable as a melody, and the aperture directly on the headset. The rubber portion of the tube connects to a metal tube, located closer to the headset, which ultimately direct the sound to the ears of the doctor. The hose ends at the end of a metal tube, usually insulated with rubber to reduce impact of ambient noise on the interpretation of the doctor, the sounds heard during the examination. As the eardrum vibrates when sound waves run through it, as well as the membrane on the chest stethoscope. Vibration moves through the rubber tube, the metal tube and to the ears of the doctor.
Two main types stetoskopów is an acoustic and electronic . Acoustic stethoscopes are the most well-known and work through the transmission of sound from the chest. The electronic stethoscopes are able to amplify the detected sound of the body, working without wires, and even record the sound waves for the revision on the computer, if necessary.
This device makes sure the individual sounds of the body are easily distinguishable and is not painful for the patient. Although the stethoscope, usually associated with your doctor may also serve other purposes. For example, a technician can use this device to diagnose engine fault with the car, listening to the sounds of its moving parts. Can also be used for leak detection in a vacuum chamber.
A brief history of the stethoscope
The stethoscope was invented in France in 1816. Doctor Rene Laenneca at the hospital Necker-Enfants Malades in Paris. His original design was a mono (single channel sound come from one position) and consisted of a long wooden pipe.
Due to differences of age and sex among his patients and practical nature of its work, Laennec felt uncomfortable, putting his ear directly to the thorax of the patients. Wooden pipe Laennecowi allowed to listen to the heartbeat of the patient without any physical contact with your own body.
In 1852 George Philip Cammann perfected your project obuusznego the stethoscope for commercial production. The stethoscope was more robust than the Laennec design with separate headphones, so the sound could attract both ears at the same time. Design Cammanna has become the standard for medical stethoscope, which is still in use.
A quick transition to the forties, when Rappaport and Sprague przedefiniowali standard for most other stetoskopów produced at the time. The device Rappaport and Sprague made with two sides, one used to listen to the respiratory system and one for the cardiovascular system . This project was supported for decades until it was finally abandoned around 2004.
By 2015, the project is open-source stethoscope with 3D printing made it much more understandable and accessible than ever before, especially in developing countries.
The choice of stethoscope
When choosing a stethoscope important special activity that you have in mind. For example, the cardiologist can use a stethoscope that can easily detect both high and low sounds, regardless of how weak you can be.
Also, make sure that the headphones fit and comfortable in the ears for best accuracy in diagnosis. Tubes to the intended device must also be durable and well insulated to avoid interference and external noise.
The best stethoscopes have a cell piersiowe high density, made of steel or titanium for the best conduction of sound. Part of the breast should be manually polished inside and outside to get the sharpest sound.
The device is also available in different colors, which is particularly useful for pediatricians that can work with multiple small children.