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A medical lavage apparatus (10) for body cavities, comprises a housing (20) having parallel irrigation and aspiration cylinders (28, 32) with plungers (24, 26) extending in bores thereof from a first end and aspiration and irrigation check valves positioned in parallel, smaller, offset, valve cylind

A medical lavage apparatus (10) for body cavities, comprises a housing (20) having parallel irrigation and aspiration cylinders (28, 32) with plungers (24, 26) extending in bores thereof from a first end and aspiration and irrigation check valves positioned in parallel, smaller, offset, valve cylinders (46, 48) located at second ends. A septum (50) formed of intersecting semi-circular-in-cross-section baffles joins the adjacent outer ends of the irrigation and aspiration check valve cylinders so as to allow full fluid streams flowing from these outer ends to flow together at an angle. An oblong-in-cross-section, funnel-shaped, common exchange tube (22) is attached to the housing surrounding ends of both the irrigation and aspiration check valve cylinders and the septum. Inlet and outlet ports (42 and 44) are respectively positioned on the sides of the irrigation and aspiration cylinders with appropriate check valves located therein for coupling respectively to supply and waste containers (12, 16). When either of the plungers is fully inserted into its respective cylinder, a seal (80) on the end thereof covers the respective inlet or outlet port, thereby making that cylinder inoperative so as to avoid undesired fluid mixing between cylinders.

대표청구항 ▼

A medical lavage syringe device for irrigating and aspirating a body cavity, said device comprising: an integral rigid housing defining an elongated irrigation cylinder with an irrigation bore and an elongated aspiration cylinder with an aspiration bore, said bores being substantially parallel and s

A medical lavage syringe device for irrigating and aspirating a body cavity, said device comprising: an integral rigid housing defining an elongated irrigation cylinder with an irrigation bore and an elongated aspiration cylinder with an aspiration bore, said bores being substantially parallel and side-by-side, said irrigation and aspiration cylinder bores each being open and unconnected at first ends thereof, said rigid housing further defining respectively an inlet port and an outlet port in said respective irrigation and aspiration cylinders intermediate said first and second ends thereof; a separate rigid common exchange tube rigidly attached to said housing having a single manifold wall surrounding said second ends of said bores so as to enclose said second ends of said bores in a common manifold chamber and leading to a common nozzle; an irrigation plunger and an aspiration plunger having first ends for respectively fitting into said first open ends of said irrigation and aspiration cylinders and having sliding seals at said first ends thereof for making sealing, sliding contact with internal cylinder surfaces of said respective bores and including hand-engaging portions at second ends outside the cylinders for engaging a hand and thereby being moved into and out of their respective bores by said hand; a system of check valves comprising an inlet check valve located at said inlet port for allowing the flow of fresh irrigation fluid into said inlet port but hindering the flow of fluid from said inlet port, an outlet check-valve located at said outlet port for allowing the flow of aspiration fluid from said outlet port but hindering the flow of fluid into said outlet port, an irrigation check-valve located at said irrigation bore between said inlet port and said common exchange tube for allowing flow of irrigation fluid from said irrigation bore into said common exchange tube but for hindering the flow of fluid from said common exchange tube into said irrigation bore and an aspiration check-valve located at said aspiration bore between said outlet port and said common exchange tube for allowing flow of irrigation fluid from said common exchange tube into said aspiration bore but hindering flow in the opposite direction; wherein said housing further includes at said second end thereof an inwardly V-shaped septum positioned between said irrigation and aspiration cylinder bores for allowing fluid flowing from these bores to come gradually together, said V-shaped septum extending longitudinally from said second end of said housing to be surrounded by said manifold wall, said septum including baffle means for preventing of cross mixing of fluids.