A curved modification of the Iowa trumpet.
D000765:Anesthesia, Conduction / Q000295:instrumentation*; D000773:Anesthesia, Obstetrical / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D007743:Labor, Obstetric; D008722:Methods; D011247:Pregnancy