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Medipin® — to Detect Neuropathy

Early diagnosis of Diabetic Peripheral Neuropathy can be critical. Medipin® is a single-use protected neurological pin designed to optimize pinprick perception without piercing delicate skin.

The pinprick or sharp sensation test is acknowledged and recommended by the ADA as a useful and sensitive method of testing for Loss Of Protective Sensation [LOPS] and predicting serious complications associated with diabetes.(1,2)

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Medipin’s technology has been designed to enhance patient pinprick sensation response. Each Medipin has a short pyramid shaped point with highly defined edges and a flattened top intended to stretch rather than penetrate the skin surface. The point is surrounded by an annular ring to provide a contrasting perimeter of dull stimulation that further augments the sharp sensation created by the point and helps prevent skin puncture. The tab, which protects the point integrity until it is ready to be used, is designed to break away and can be used to conduct a two-point discrimination (6mm) test. The blunt end head of the Medipin is for comparison testing.  

Medipin is designed to enhance the acuity of perceived pinprick sensation by combining stimulus from multiple biological sensory receptors, rather than utilizing increased physical pressure to elicit a similar level of pain response. It is a medical instrument, designed with safety in mind, that may help reduce the risk of patient skin penetration and seeks to protect clinicians from accidental needle stick injury. It can be used by any person with increased risk of neuropathy or loss of protective sensation and clinicians who regularly work with patients that may have a potential neurologic deficit. An FDA listed instrument, Medipin has been in regular use by U.S. doctors for many years, as well has having been employed successfully in quite a number of international medical studies.

Medipin can be uesed for testing for earlier detection of loss of protective sensation in a physician’s practice. The professional examination procedure utilises an advanced pinprick technique and dedicated device for improved diagnosis of loss of protective sensation.

Physicians can use a Medipin to establish “Normal” sensation in an area known to be unaffected by pathology — for example the palmar aspect of a wrist, or tip of a shoulder — by using multiple light applications in a continuously repetitive, percussive action to establish an “average” for the patient. This represents the “control.” The physician can advise the patient that this is “normal” for them. Patient responses can be graded by setting the “normal” control area at an arbitrary score of “five” out of 10 allowing them to offer a specific comparative value in another area. The doctor should immediately move to the region under suspicion – for example the dorsal halux – and ask them how the score compares to the control. This makes the test quantitative rather than the binary interpretation provided by the “yes or no” response.

For Medical Professionals the cost is less than 18 cents each with discount code  Medipin25Medipin 100 Count Box for clinical use.

Physicians can also educate patients with diabetes about home testing for peripheral neuropathy. A box of 12 monthly Diabetic Toes Test by Medipin is a year’s supply for one patient: Medipin 12 Count Box.

1) Boulton et al, Comprehensive Foot Examination And Risk Assessment, Diabetes Care, Vol 31, No 8, Aug 2008.

2) Abbott CA, Carrington AL, Ashe H, for the North-West Diabetes Foot Care Study. The North-West diabetes foot care study: incidence of, and risk factors for, new diabetic foot ulceration in a community- based patient cohort. Diabet Med. 2002;19:377-384.