Disposable bladeless optical trocars were a type of surgical instrument used in minimally invasive surgery, particularly in laparoscopic procedures. Trocars are devices designed to puncture the abdominal wall to provide access for surgical instruments during minimally invasive surgeries.

Bladeless optical trocars are characterized by their design, which eliminates the need for a traditional blade. Instead, they typically feature a blunt-tip or cone-shaped structure to minimize tissue damage during insertion. Additionally, these trocars often include an optical component, such as a camera or light source, to assist surgeons in visualizing the internal structures.