- You do not have any products in your shopping cart yet.
Dual Frequency Technologie des Stetoscopes
Dual frequency technology of the stetoscope
Easily switch between listening to high and low frequencies.
Dual Frequency Technology is a 3M invention that makes auscultation of a patient easier and more effective. It allows you to hear different types of sounds by simply adjusting the amount of pressure you apply to the chestpiece of your 3M™ Littmann® stethoscope.
Almost all Littmann stethoscopes have at least one adjustable diaphragm. (The exceptions are electronic, pediatric and infant models.) Dual Frequency Technology makes it virtually unnecessary to remove, turn and reposition the chestpiece just to hear different sounds.
While other stethoscope brands require you to unscrew and change diaphragms and bells, Littmann stethoscopes are simple and user-friendly.
To listen to low frequency sounds, place the chestpiece on the patient with light pressure. In this position, the diaphragm is free-hanging and can reproduce low frequency sounds.
To hear high frequency sounds, apply firm pressure to the chestpiece. By applying pressure to the chestpiece, the movement of the diaphragm is restricted. This blocks (or dampens) low frequency sounds so that you can hear the high frequency sounds.
Almost all Littmann stethoscopes have at least one adjustable diaphragm. (The exceptions are electronic, pediatric and infant models.) Dual Frequency Technology makes it virtually unnecessary to remove, turn and reposition the chestpiece just to hear different sounds.
While other stethoscope brands require you to unscrew and change diaphragms and bells, Littmann stethoscopes are simple and user-friendly.
To listen to low frequency sounds, place the chestpiece on the patient with light pressure. In this position, the diaphragm is free-hanging and can reproduce low frequency sounds.
To hear high frequency sounds, apply firm pressure to the chestpiece. By applying pressure to the chestpiece, the movement of the diaphragm is restricted. This blocks (or dampens) low frequency sounds so that you can hear the high frequency sounds.