Abstract: A system for aiding placement of a nasogastric tube or a nasoduodenal tube and a method for using the same is disclosed, and the system comprises that of: a placing tube; a three-way connector, having a first port, a second port, and a third port, the first port being on the opposite end to the second port, the first port being adjacent to the third port, the first port being connected with a proximal end of the placing tube, the third port being adapted for pumping air or fluid into the three-way connector; an endoscope, having an insertion tube and an image-capturing device, the distal end of the insertion tube being a bending section, the image-capturing device being located in the front end of the bending section; and a display unit, connected with the endoscope.

Abstract: An upper gastrointestinal bleeding monitoring system includes a detection device and a signal processing device to determine bleeding condition of an upper gastrointestinal tract by using relation of time and intensity ratios of RGB three primary colors. The detecting device is placed to the upper gastrointestinal tract of a patient via his/her mouth or nasal passage and then stay the upper gastrointestinal tract for several days for detection of bleeding. The signal processing device may receive and display signal from the detection device to help medical professionals check if bleeding occurs in an upper gastrointestinal tract. Moreover, a procedure of determination of bleeding in an upper gastrointestinal tract with the upper gastrointestinal bleeding monitoring system is described.

Abstract: A method for determining upper gastrointestinal bleeding course includes the steps of: providing an upper gastrointestinal bleeding monitoring system including a bleeding detecting device, a transmission module, a signal processing device and a signal display; acquiring a time signal of RGB three primary colors of an upper gastrointestinal tract image with the bleeding detecting device; transmitting the time signal of RGB three primary colors by the transmission module to the signal processing device; calculating an intensity ratio of the time signal of RGB three primary color; evaluating the upper gastrointestinal bleeding course according to the intensity ratio of the time signal of RGB three primary color; and displaying the evaluation result on the signal display.

Abstract: A method for determining emptying of upper gastrointestinal tract includes the steps of: providing an upper gastrointestinal monitoring system including a detecting device, a transmission module, a signal processing device and a signal display; acquiring a time signal of RGB three primary colors of an upper gastrointestinal tract image with the detecting device; transmitting the time signal of RGB three primary colors by the transmission module to the signal processing device; calculating an intensity ratio of the time signal of RGB three primary color; evaluating the upper gastrointestinal emptying according to the intensity ratio of the time signal of RGB three primary color; and displaying the evaluation result on the signal display.

Abstract: A method for determining emptying of upper gastrointestinal tract includes the steps of: providing an upper gastrointestinal monitoring system including a detecting device, a transmission module, a signal processing device and a signal display; acquiring a time signal of RGB three primary colors of an upper gastrointestinal tract image with the detecting device; transmitting the time signal of RGB three primary colors by the transmission module to the signal processing device; calculating an intensity ratio of the time signal of RGB three primary color; evaluating the upper gastrointestinal emptying according to the intensity ratio of the time signal of RGB three primary color; and displaying the evaluation result on the signal display.

Abstract: A method for determining upper gastrointestinal bleeding course includes the steps of: providing an upper gastrointestinal bleeding monitoring system including a bleeding detecting device, a transmission module, a signal processing device and a signal display; acquiring a time signal of RGB three primary colors of an upper gastrointestinal tract image with the bleeding detecting device; transmitting the time signal of RGB three primary colors by the transmission module to the signal processing device; calculating an intensity ratio of the time signal of RGB three primary color; evaluating the upper gastrointestinal bleeding course according to the intensity ratio of the time signal of RGB three primary color; and displaying the evaluation result on the signal display.

Abstract: An upper gastrointestinal bleeding monitoring system includes a detection device and a signal processing device to determine bleeding condition of an upper gastrointestinal tract by using relation of time and intensity ratios of RGB three primary colors. The detecting device is placed to the upper gastrointestinal tract of a patient via his/her mouth or nasal passage and then stay the upper gastrointestinal tract for several days for detection of bleeding. The signal processing device may receive and display signal from the detection device to help medical professionals check if bleeding occurs in an upper gastrointestinal tract. Moreover, a procedure of determination of bleeding in an upper gastrointestinal tract with the upper gastrointestinal bleeding monitoring system is described.