Surgical, medical, dental and veterinary apparatus and instruments, in particular, medical devices, namely, access devices in the nature of trocars for use in manual and robotically-assisted minimally invasive surgical procedures in the nature of laparoscopic, endoscopic, gynecological, urological, thoracic, colo-rectal, gastrointestinal and bariatric and general surgery; surgical instruments for use in manual and robotically-assisted minimally invasive surgical procedures, namely, laparoscopic, endoscopic, gynecological, urological, thoracic, colo-rectal, gastrointestinal and bariatric and general surgery; vessel sealing devices for use in minimally invasive procedures; rigid and flexible medical endoscopes; medical and surgical laparoscopes; sheaths and overtubes with or without balloons used in combination with endoscopes, external channels added to endoscopes; flexible surgical instruments used alone or in combination with sheaths, overtubes or external channels used with endoscopes or through the working channel of endoscopes; suture or closing devices and materials