Medical lavage apparatus and methods

Details Medical lavage apparatus and methods Medical lavage apparatus and methods

A - Human Necessities

61

M

A61M 3/00 (2006.01) A61M 1/00 (2006.01) A61M 39/24 (2006.01)

Patent

CA 2119243

A medical lavage apparatus (10) for body cavities comprising a housing (20) having parallel irrigation and aspiration cylin- ders (28, 32) with captive plungers (24, 26) extending in bores thereof from a first end and pairs of check-valves (102-106) posi- tioned in parallel, smaller, offset cylinders located at second ends such that reciprocal movement of the each plunger in each cyl- inder performs the function of a one-way pump. Novel jam-free dome shaped, slit check-valves (230) are disposed to be the pair of check-valves in the aspiration cylinder in one embodiment and in irrigation cylinders as well in other emobodiments. The dome shaped valves are described for use in other medical fluid control applications, as well. A septum (50) formed of intersect- ing semi-circular-in-cross-section baffles (58, 60) joins the adjacent outer ends of the irrigation and aspiration check-valve cylin- ders so as to allow full fluid streams flowing from these outer ends to flow together at an angle.

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