Medical Tuning Forks with adjustable Frequency

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Price: £112.21 Ex VAT: £95.50 Manuf part number: MIC36.224.10

Description Medical Tuning Folk with adjustable Frequency Martin Sieffer C 64/C0 128 Hz, chrome plated steel with detachable clamps , for diabetic and other specialist diagnostic testing such as toxic nerve damage (ETOH, lead, heavy metals), immune mediated neuropathies (AIDP/Gullian Barre,CIDP), B12 deficiency/subacute combined degeneration, tabes dorsalis, chemotherapeutic related neuropathy. NB: the diagnosis of neuropathy or any of the above conditions should only be made in consultation with a qualified health professional Assembly The tuning fork produces two different frequencies: note C - 64 Hz with the dampers (as marked on the dampers) and note C - 128 Hz without the dampers.  The dampers must be fitted with the lower edge flush with the score marks on the prongs.  The imprint “C64” on the dampers, and the imprint “C128” on the tuning fork must all be facing the user when the dampers are fitted.  The knurled head screws are tightened to fix the dampers and slacked to remove them.  They should be tightened firmly when the dampers are fitted. Practical use Notice the black and white triangles on the dampers are each marked with a scale from 0 to 8.  To set the tuning fork into motion, compress the tynes together between the thumb and index finger.  Rapidly release the tynes in a finger snapping sort of motion.  This method is preferred over striking the tuning fork against the ball of the thumb as the head screws tend to loosen over time with this later method. As the prongs start to oscillate, the illusion of two triangles is visible on each damper.  The base of the tuning fork is placed over the appropriate bony surface (ie distal hallux, medial malleolus etc) and the patient is asked to indicate the moment when the vibration is not longer detected.  As the intensity of the vibration starts to diminish the two triangles move closer together again and their point of intersection moves slowly upward.  The intensity at which the patient no longer detects the vibration is read as the number adjacent the intersection of the vibrating triangles.  This number can be read off the white or black triangle depending on the amount of light available or which scale is more easily readable.  We recommend recording the black triangle intersection from the base up and the white triangle intersection from the apex down.  This seems to produces the most accurate readings between triangles for any particular moment in time.  Convention is to use the black triangle as was the case in the JNNP article below. Reference values for normal healthy controls have been published in the Journal of Neurology, Neurosurgery and Psychiatry 1998;65(5)743-7.  http://jnnp.bmjjournals.com/cgi/reprint/65/5/743.pdf                 Upper Extremities                                               Lower Extremities                 Age                        Values                                    Age                        Values                                                                    ≤ 40                         ≥ 6.5                                        ≤ 40                         ≥ 4.5                 41-85                       ≥ 6.0                                        41-60                       ≥ 4.0                 >85                          ≥ 5.5                                        61-85                       ≥ 3.5                                                                                                 >85                          >3.0 Sites of examination: dorsum of index finger DIP joint, ulnar styloid process, dorsum of IP of hallux (great toe), and internal malleolus. The gradations on the dampers are delicate and easily scratched.  Handle the tuning fork with care and store in a secure location