water jet injection nozzle, water jet injection system, digestive tract cleaning equipment and stomach wall cleaning equipment

摘要

can be enhanced cleaning ability against pressure, when used in the stomach wall washing, without damaging the tissue of the stomach, such as gastric mucosa, it can effectively remove the gastric mucous, water jet injection nozzle, water jet injection device, there is provided a gastrointestinal washing device and a stomach wall cleaning device. Water jet injection nozzle (11) toward the distal end, the small-diameter inner diameter than the upstream small (21), the small diameter portion (21) inner diameter than the larger expanded portion (22), the inner diameter than the enlarged portion (22) and has a flow path having a small injection orifice (23) (11a), when a current of 0.2 to the water at a pressure of 0.6MPa to the flow path (11a), the water in the enlarged portion (22) The reservoir is generated configured to be able to cavitation bubbles toward the enlarged portion (22) from the small diameter portion (21). The inner diameter of the small diameter portion (21) is 0.5 to 0.7mm, the inner diameter of the injection opening (23) is 1 to 1.3 times the inner diameter of the small diameter portion (21)