Patent ID: 8388588
Filing Date: 2013-03-05
Classification: A61F

Abstract:
1. A negative pressure urine receiver adapted to be worn by a wearer in use, said negative pressure urine receiver comprising: a leak-proof container member having an opening; a suction part formed in said container member so as to extend outward through said container member and to be connected to a urine suction unit provided externally of said container member; a liquid-pervious sheet covering said opening of said container member, wherein, in use, an amount of urine sucked into said container member through said liquid-pervious sheet under a negative pressure generated by said urine suction unit is evacuated out from said container member via said suction part under said negative pressure; an electrical sensor adapted to be interposed between the wearer's skin and said liquid-pervious sheet so as to detect a urination by said wearer; a spacer sheet having a thickness of at least 0.7 mm and including a plurality of through-holes each having a diameter of at least 2 mm, wherein said spacer sheet is substantially incompressible in a thickness direction thereof; and a liquid-pervious filter sheet, wherein said container member is a hollow structure having a length direction, a width direction and a thickness direction which are orthogonal one to another, and comprises a bottom and a peripheral wall rising in the thickness direction from said bottom so that said peripheral wall surrounds said bottom, an upper edge of said peripheral wall defines said opening, said liquid-pervious sheet is attached to said upper edge and thereby said container member cooperates with said liquid-pervious sheet to form a urine suction space, said suction part has a urine suction port opening toward said urine suction space and a urine evacuation port opening toward the exterior of said urine suction space, said container member further comprises at least one rib positioned in a vicinity of and opposite to said urine suction port to prevent the liquid-pervious sheet from choking up said urine suction port, said at least one rib extends inwardly directly from a peripheral edge of said container member toward the urine suction port, said electrical sensor is at least partially covered by the liquid-pervious filter sheet to prevent solid content of bodily discharges from coming in contact with said electrical sensor, and said spacer sheet is interposed between said electrical sensor and said liquid-pervious filter sheet.