Snakebite suction devices don't remove venom: they just suck.
Bush
Sean P
SP
D000818:Animals; D003435:Crotalid Venoms; D017839:Crotalus; D006801:Humans; D012909:Snake Bites / Q000628:therapy*; D012910:Snake Venoms; D013396:Suction / Q000295:instrumentation*; D017211:Treatment Failure
D003435:Crotalid Venoms; D012910:Snake Venoms