Fist Assist Devices, LLC is a Silicon Valley, CA USA medical device company focusing on vein dilation, enhancement and AV fistula success. Based clinical and exercise science, we have created a simple, patented,  intermittent pneumatic device for vein dilation and to assist with fistula success during the journey with renal disease. The Fist Assist device now has CE Mark allowance is available for direct patient purchase on Amazon in Europe.