Cheap and simple medical devices have to overcome deeply rooted biases
I spent the weekend dissassembling a hematology analyzer capable of measuring 17 parameters of the immune system from a large drop of blood. Nabbed it on ebay for cheap.Was able to unclog a few of the lines and get it running, learning how it works by shooting cells past a laserbeam and looking at scatter. Overall, the complexity of the machine is far simpler than that of a simple laser printer, but its retail value is $10k as a veterinary instrument. Machines for human patients are way more expensive.My dissappointment however was discovering that it refuses to run unless its barcode scanner can see manufacturer-validated reagent bottles. The chemicals needed to make it run are simple salt-waters that can be easily made for $10 of various powders, but the manufacturer sells reagent sets for $1000k each. Now its clear that getting any useful data out of it will require hacking the ARM embedded system onboard.Why am I doing this? Certainly not for any kind of regulated medical treatment, but I personally want to know how my immune system changes on a day to day basis. Datasets like this dont exist on such a high frequency sampling rate. What I find however, is that the decades-old tech that powers this relatively simple machine is being held back by an overly restrictive regulatory environment and price gouging of chemical reagents.Why the artificial construction of a $100 lab test, when the actual value to perform such a test is much much lower? Why can't we live in a world where such self-experimentation is allowed outside of the strict guidelines of diagnostics?