The medical practice would be rather incomplete without some basic tools which are used by medical practitioners. One of these vital tools used in the medical field is the stethoscope which plays a vital role in diagnostics and treatment of patients. It is a tool that enables doctors, nurses and other medical practitioners to know, monitor and adequately cares for the internal organs of humans and animals by listening to the sound such an organ makes.
The tool was invented in the year 1816 by Rene Laennec in France. Then it was only in the form of “ear tubes”. The modern designs are believed to have been created by Dr. David Littman of Harvard University whose design made them lighter and smarter by working on their acoustics.
It is worn by placing the ear tips on the ears and gently stretch them forward towards the patient.
Types of stethescope
Stethoscopes are classified with diverse parameters. Some of the parameters include; classification based on the mode of operation and classification based on design.
Classification based on mode of operation
Acoustic stethoscope: This is the most frequent and widely used stethoscope and is believed to be the best stethoscopes for nurses and medical student. Its working principle is to transfer sounds from chest piece to hollow tubes of the device and the examiner (doctor, nurse or student) receives the signals. Not withstanding its popularity and frequency of usage, this stethoscope proves not very useful in very noisy surroundings and when there’s low-frequency sound.
This stethoscope as its name suggests works with a mechanism that is electronically powered and its operation varies based on different manufacturers. The general operating principle is that a microphone is placed on the chest piece of the stethoscope which obstruct completely the ambient noise.
It was designed to overcome the sound and volume limitations of the acoustic stethoscope by amplifying the sound waves collected by the chest piece and converting them into electronic waves. This type of stethoscope is further sub-divided into two types; digital and amplified stethoscope.
This type of electronic stethoscope gives the opportunity to switch between amplification and analog modes of operation. This act of switching allows the sound produced at each mode to be reprocessed and confirmed using the alternating mode.
This type of electronic stethoscope converts and transmit auscultation sounds in acoustic to electronic sound waves which the mechanism amplifies and send them to the examiner’s earpiece. This is believed to be the best stethoscope used by medical personnel suffering from hearing loss.
Classification on design
Single head stethoscope: the design of this stethoscope is very simple and straightforward. The diaphragm is adjustable. It is majorly used by a cardiologist who through a proper check of the movement of the heart, lungs, and bowels can deal with a variety of cardiovascular diseases.
Double head stethoscope: this type of stethoscope has a handful of design by diverse manufactures but the general design principle contain a bells two varied sizes of a diaphragm. It is the choice of most doctors because it contains bigger diaphragm and is suitable to care for the different body organs.
Other types of stethoscope include Infant stethoscope, Doppler stethoscope, neonatal stethoscope, veterinary stethoscope, pediatric stethoscope, cardiology stethoscope, and fetal stethoscope.
Why is the double head stethescope used for first aid?
Because of the generality of the double head stethoscope and; uses hence, the term ever ready first aid double head stethoscope.
The double head stethoscope is chosen for the first aid and emergency kit because it is suitable for humans of all ages. Most ambulances, schools, factory, workshop or home first aid toolbox isn’t big enough to accommodate all the stethoscope for different ages due to the uncertainty of the age of the emergency patient, there needs to be a general stethoscope which can serve all ages, the double head stethoscope.
It is also uncertain the environment with which a first aid box would be used. This is another very vital reason why the double head stethoscope is used in the first aid box. In a very noisy environment, the best choice of the stethoscope to choose is the double head stethoscope.
It delivers different ranges of sound based on the patient’s age. And its speed is unmatched in narrowing the organ producing a particular sound.
So, when it comes to bruises, injuries, cuts or burn when the patient needs urgent attention and treatment before situations worsen; to reduce pain, cool burn and stop bleeding right on the spot. The double head stethoscope should be your pick.
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