Medical apparatus and instruments for relaxing muscles and for the treatment of cerebral and neurological disorders, diseases and conditions; hypodermic needles; hypodermic needles for injection; syringes for medical purposes; systems for injections consisting of hypodermic needles for injections, syringes for medical purposes and injection devices for pharmaceuticals; single-dose injection devices for pharmaceuticals; receptacles for applying medicines for relaxing muscles and for the treatm...