Abstract: Technologies are generally described for a system for detecting the presence of gas in the intraperitoneal space of the abdominal cavity and indicating anastomotic leakage. A sensing device may be implanted inside the abdominal cavity of a body near the location of an anastomosis. The sensing device may utilize a sensor configured to detect gas presence and measure the concentrations of gases, including hydrogen sulfide and/or methane, within the intraperitoneal space. The sensing device may be configured to transmit gas detection information to an external wireless communication device, and the wireless communication device may be configured to generate an alert if a gas concentration level rises above a predetermined acceptable level.

Abstract: Briefly stated, technologies are generally described for tracking a location and an orientation of a medical tool inside a body. The method may include positioning multiple light emitting diodes (LEDs) in infrared (IR) wavelength range near a tip of the medical tool. Upon insertion of the medical tool inside the body, the LEDs may emit IR light in unique patterns, which may be detectable through bodily tissue. The emitted light patterns may be detected through an IR detector device external to the body. One or more IR markers may be placed near the body to serve as reference points and the IR detector may determine the location and the orientation of the medical tool inside the body based on the detected light patterns. The location and the orientation of the medical tool inside the body may be displayed on a monitor.

Abstract: Technologies are generally described for a system for detecting the presence of gas in the intraperitoneal space of the abdominal cavity and indicating anastomotic leakage. A sensing device may be implanted inside the abdominal cavity of a body near the location of an anastomosis. The sensing device may utilize a sensor configured to detect gas presence and measure the concentrations of gases, including hydrogen sulfide and/or methane, within the intraperitoneal space. The sensing device may be configured to transmit gas detection information to an external wireless communication device, and the wireless communication device may be configured to generate an alert if a gas concentration level rises above a predetermined acceptable level.