| 摘要 |
The invention is concerned with a nasogastric catheter comprising a tube 1 of relatively flexible material defining a main duct extending from one end of the tube to the other end thereof, and first and second inflatable vessels G2, G3 which are mounted at the exterior of the tube and through which the tube extends. The vessels are preferably situated approximately three- quarters of the way along the tube, and are, in any event, spaced from one another along the tube. First and second subsidiary conduits 2, 3 extend along the tube from a portion thereof which is to remain outside a patient when the catheter is in use and communicate with the first and second vessels G2, G3, respectively, but are isolated from said main duct. The tube is formed with at least one lateral perforation P' between the first and second vessels and at least one and preferably a plurality of lateral perforations P after the second vessel (i.e. between said vessel and that end of the tube which is to be inserted into the patient's stomach), the lateral perforations establishing communication between the main duct and the exterior of the tube. <IMAGE> |
