Rydel-Seiffer Medical Tuning Fork to test hearing and pallaesthesia
- Handy diagnostic instrument
- With dampers and base C 64 Hz/c 128 Hz
- Scale: 0 - 8
- High-quality manufacturing
- Now with optional laser engraving
- For use in neurology and ENT
- To diagnose vibrational sensitivity impairment
- To gain information on depth sensitivity
- To perform the Weber and Rinne test
Rydel-Seiffer Medical Tuning Fork
You can now engrave your Medical Tuning Fork!
With the new engraving function it is now possible to individualize your medical tuning fork with your name or a small text. You can use our online configuration tool. First choose the engraving font, then you can enter your text (up to 26 characters). Please note that individualized products can't be returned and that we are not yet able to engrave emojis.
The Rydel-Seiffer tuning fork is used to diagnose polyneuropathy damage and hearing impairment. The calibrated tuning fork oscillates on a frequency of 64 Hz (with dampers) or 128 Hz (without dampers). The tuning fork’s dampers and base can both be removed.
The tuning fork is used in neurology to test vibration sensation (pallaesthesia). It can be used for the diagnosis of polyneuropathies (nervous disorders), which manifest themselves in a reduction of vibrational sensitivity. In younger people, minimal oscillations should be perceived (scale value 8 of 8). People with increasing age often show a slightly reduced vibration sensation (scale value 6 of 8). If the values are below six, this indicates polyneuropathy.
In the ENT field, the medical tuning fork can be used as an addition to hearing tests. With help of the tuning fork, one can determine auditory damage (Weber Test), and differentiate between middle-ear and inner-ear hearing impairment (Rinne Test).
- Rydel-Seiffer medical tuning fork
- Frequency: C 64 Hz/C 128 Hz
- Material: nickel-plated steel
- Removable base and dampers
- For determining hearing impairment and polyneuropathy damage
Manufacturer: Arno Barthelmes
The tuning fork is set into oscillation and its base is set onto the metatarsophalangeal joint. The patient indicates when he stops feeling the vibrations. The doctor can read the measurements of that moment from the scale. During the examination, the patient should have his eyes closed to fully concentrate on the vibrations.
The scale of the medical tuning fork ranges from 0 to 8. 0 corresponds to the maximum vibration strength, while 8 corresponds to minimal vibrations.
The tuning fork is put into oscillation by striking it on the ball of the thumb, or by plucking the tines of the tuning fork with the thumb and index finger. The vibrations create an optical phenomenon where two triangles become visible on the dampers, that overlap more and more when the vibrations decrease. The point of intersection indicates the intensity of the vibrations and can be read on the scale.
The Weber Test is performed to prove a one-sided hearing loss. During the test, the vibrating tuning fork is set onto the head of the patient who describes his auditory sensation. Normally, the patient would hear the sounds at the same volume in both ears. If the patient hears the sounds with different volumes, he has a middle or inner ear hearing impairment.
The Rinne Test helps differentiate between a middle and inner ear hearing impairment. The vibrating tuning fork is set on the bone behind the patient's ear until he stops hearing the sound. Then, the tuning fork is put in front of the patient's ear. If he hears the sound again, he has an inner ear hearing impairment. If the sound is imperceptible, or almost imperceptible, this hints to a middle ear hearing impairment.