A dual-view multi-resolution laparoscope for safer and more efficient minimally invasive surgery

Abstract

Minimally invasive surgery (MIS) is limited in safety and efficiency by the hand-held nature and narrow fields of view of traditional laparoscopes. A multi-resolution foveated laparoscope (MRFL) was invented to address these concerns. The MRFL is a stationary dual-view imaging device with optical panning and zooming capabilities. It is designed to simultaneously capture and display a zoomed view and supplemental wide view of the surgical field. Optical zooming and panning capabilities facilitate repositioning of the zoomed view without physically moving the system. Additional MRFL features designed to improve safety and efficiency include its snub-nosed endoscope, tool-tip auto tracking, programmable focus profiles, unique selectable display modalities, foot pedal controls, and independently controlled surgeon and assistant displays. An MRFL prototype was constructed to demonstrate and test these features. Testing of the prototype validates its design architecture and confirms the functionality of its features. The current MRFL prototype functions adequately as a proof of concept, but the system features and performance require further improvement to be practical for clinical use.

Strictly-controlled techniques are required in laparoscopic appendectomy for elemental mercury sequestration in the appendix: a case report

“…1,8 Notably, in our experience with this case, we found that laparoscopic management of elemental mercury sequestration in the appendix has several advantages over open surgery: 1) Laparoscopic surgery is minimally invasive, which means that it involves smaller incisions and less tissue damage compared with open surgery. This can result in less pain, shorter hospital stay, and faster recovery time for the patient; 2) Laparoscopic surgery provides better visualization of the surgical field, 14 which can help the surgeon identify and remove all of the mercury-contaminated tissue more effectively. This can reduce the risk of leaving mercury behind, which could lead to further complications; and 3) Laparoscopic surgery is associated with a lower risk of infection and other postoperative complications, such as bleeding and hernia formation.…”