well you pose an interesting question to say the least. i give you credit for creativity. i can see how you might think such a system might work in theory. however in practice i can't see this working and i advise you not to try it. think about it for a moment: using a vacuum system to remove urine and human waste would require a pretty tight seal between the device and the body. how would you propose to seal the device to human skin? would you place a man's penis inside a vacuum hose for example so when he urinates the fluid is sucked down the hose into a collection container? this is a very bad idea indeed! likewise how would you propose to seal a vacuum hose to a person's anus? i'd be pretty curious to view the schematics for this. there is no type of "vacuum system" i know of that is designed for the purpose you describe. i advise anyone reading this not to try to use a common household vacuum cleaner for this purpose. but like i said i give you props for creativity. and if you do manage to dream something up that's viable i'd slap a patent on it and start raking in the money. wishing you well!
can a vaccum system be used to take care of old folks human waste and urine on a periodic basis to replace diapers etc? . the configuration is left to designers.