A spring-loaded needle for amniocentesis.
The spring-loaded needle for amniocentesis that is described has theoretic advantages over a spinal needle. These include increased safety for the fetus and better recognition of when the needle enters the uterine cavity.
D000649:Amniocentesis / Q000379:methods; D005260:Female; D006801:Humans; D009339:Needles; D011247:Pregnancy