Hello there.My name is Alex , I am a military automotive engineer and my girlfriend is a registered nurse . Her job task is to take blood samples for further analyses from patients of all ages ( especially young ) . Her first day at her new job wasn't that great because she wasn't that experienced in finding veins, and while she complained, i googled up some solutions. Vein finders are common in western countries but here they are too expensive for us ( 100-150£ for one vein finder , and her income was standing at 200£ per month ) so i decided to make one myself .I found some ideas , articles but no instructions ( the one in Kenya for example) and then i found this link , but as a patient , i wouldn't want my nurse to use that on me because of its appearance. So I designed a whole series of them in the attempt to make it more patient - friendly , and i finally succeeded. I also made it in a way not to warp when printing with PLA , using blue tape , rubbing alcohol and the heat bed not active because i assumed it would be printed in areas that are poor and a printer with a heated bed would be more expensive .

Also this can be used in various countries around the world where they don't have medical equipment or money to buy it or professional staff is scarce . Now with the Zika virus , malaria and all sorts of diseases ... it's a helping hand.



How does it work. Well , light at 620-680 nm penetrates skin, fat tissue and oxygenated blood with ease but when it meets de-oxygenated blood ( what circulates trough the veins ), it gets caught up in there , thus resulting in a dark area. You will have to put the device on skin , search for a proper vein , aim it , and put the needle in that gap , in the vein. Very useful when working with anxiety suffering patients , children , patients that may cause them a drama if you try 2-3-4 times to get a sample of his/her blood.(btw sorry for my English).