What has changed in the monofilament testing from the original?
Sidney Weinstein made further improvements to the original design when he rounded the tops of the Nylons, in what he has patented as the WEST (Weinstein Enhanced Sensory Test). This he certifies for calibration, and he reports it has better tip control. Sidney Weinstein continued for years to use the monofilaments and other threshold tests for the eye and dermatological applications, and again added to developments in peripheral nerve testing instrument design when he developed a treatment to round the Nylon monofilament tip for the WEST instrument. This version of the monofilament test (patented) is available today through his website and in some patient care catalogs as a Hand Set, Foot Set, and an additional set using the lightest monofilaments for Normative testing. The original Semmes-Weinstein design is still useful and available to a large variety of clinics that need to do sensibility testing. There is nothing wrong with the original design so long as it is calibrated correctly