From Wiktionary, the free dictionary
From mono- + trocar.
monotrocar (plural monotrocars)
- (surgery) A trocar used to make a single incision
2015 August 4, Antonia Rizzuto et al., “The Twin Forceps: A New Instrument for SILS”, in BioMed Research International[1], volume 2015, →DOI:This instrument takes advantage of the traditional monotrocar to enter in the abdominal cavity.