How to choose a Littmann stethoscope
Stethoscopes are a very important part of the diagnostic process. The sounds produced by the heart, lungs, and digestive system are generally better heard through a Littmann stethoscope than through complex electronic instruments.
Before purchasing a stethoscope, it is essential to consider the characteristics of each model — checking whether the earpieces are easy or difficult to adjust and whether they suit the work you will be performing. Although it is likely that a 3M™ Littmann stethoscope will offer everything you are looking for, and much more.
Components of a Littmann stethoscope
- Chest piece: Littmann stethoscope models have very different chest pieces depending on the examination to be performed. They may be single-sided with a tunable diaphragm, or double-sided with a diaphragm on one side and an open bell on the other. Some bells are always open while others close with a tunable diaphragm.
- Tunable diaphragm: This can make auscultation of a patient much easier. It allows you to hear different sounds simply by adjusting the pressure on the chest piece.
- Earpieces and ear tubes: The ear tubes are positioned at an anatomically correct angle to allow proper alignment with the ear canals. The ear tubes in a Littmann stethoscope are made from an aerospace aluminium alloy that provides greater strength and reduced weight.
- Ear tips: All Littmann stethoscopes are fitted with ear tips that lock securely into the ear tubes for added security. The durable ear tips provide an excellent acoustic seal and a very comfortable fit, and are available in small and large sizes and in black or grey. Many Littmann stethoscope models come with an extra set of ear tips.
Choose the best Littmann stethoscope model
To choose the right stethoscope model, you need to try it out and discover the differences between each model — this way you will always select the stethoscope that best suits your needs. At Salvador Navarro, we work with a wide variety of models and options. We offer the best professional quality alongside the best brands.
Hear the difference
How much can you hear? Try a Littmann stethoscope. Place the tunable diaphragm on your chest with light pressure. An internal 3M study showed that heart sounds heard through the adult diaphragm of a Littmann stethoscope were more than four times louder (20 dB) than the same sounds heard through another stethoscope. This could be the fundamental difference between hearing something meaningful in a patient, or hearing nothing at all.
Discover the difference
Littmann stethoscopes have firm tubing that can stretch the ear tips. Littmann stethoscope tubes hang straight but flex easily for examining a patient. When holding an earpiece, pay attention to how the ear tubes cross. They should be symmetrical to provide greater comfort and an effective seal with the ear tips. The earpiece should be adjustable to provide individual comfort and fit. The tension of the headset on all Littmann stethoscopes can be easily adjusted to increase or decrease it.
Feel the difference
The ear tips of a Littmann stethoscope are soft and provide a comfortable seal in your ears; they also lock firmly in place to deliver maximum security and acoustic performance. Littmann stethoscopes are very lightweight, comfortable, and specifically designed to provide superior comfort.
At Salvador Navarro we carry the best diagnostic equipment and work with the best brands.