DEVICE WITH PASSIVE VALVE TO BLOCK EMESIS AND/OR REFLUX AND ASSOCIATED SYSTEM AND METHOD

摘要

A device (100) to block emesis and/or reflux includes a tube (101) insertable into the esophagus. A valve (108) is carried by the tube and includes a flexible sheath (109) having an upper edge (110) secured onto the tube and an unsecured lower circumferential edge (112) and configured such that upon contact with emesis and/or reflux from the stomach, the flexible sheath opens in a concave configuration towards the stomach and the unsecured lower circumferential edge engages the esophageal wall and blocks emesis and/or reflux from the stomach passing into the esophagus past the valve.