José María Barceló de Villagrán, Mexican surgeon (Querétaro 12 November 1819 – Ciudad de Mexico 05 September 1872)
Modified some operative procedures and invented surgical instruments such as paracentesis trocars
Enunciated operative concepts on thoracic strokes
First to report rapid post-expansion pulmonary oedema (1864-6)
Performed first anorectal extirpation (1871) before European surgeons