Medical lavage apparatus and methods

Details Medical lavage apparatus and methods Medical lavage apparatus and methods

1995-05-25

1997-09-16

Mendez, Manuel

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61M 500

Patent

active

056675003

ABSTRACT:
A medical lavage apparatus for body cavities comprising a housing having parallel irrigation and aspiration cylinders with captive plungers extending in bores thereof from a first end and pairs of check-valves positioned in parallel, smaller, offset cylinders located at second ends such that reciprocal movement of the each plunger in each cylinder performs the function of a one-way pump. The plungers are held captive and aligned by guide-stops proximally disposed in each cylinder. Each plunger comprises a seal disposed at the distal end thereof which inhibits communication between the pairs of check-valves in each cylinder when the plunger is fully seated in the cylinder. Novel jam-free dome shaped, slit check-valves are disposed to be the pair of check-valves in the aspiration cylinder in one embodiment and in irrigation cylinders as well in other embodiments. The dome shaped valves are described for use in other medical fluid control applications, as well. A septum formed of intersecting semi-circular-in-cross-section baffles joins the adjacent outer ends of tale irrigation and aspiration check-valve cylinders so as to allow full fluid streams flowing from these outer ends to flow together at an angle. The septum and associated irrigation and aspiration check-valve cylinders are enclosed in a common exchange tube which leads to a common patient tube connecting nozzle. A special patient tube securing attachment is disposed on the connecting nozzle.

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Product information on Lavacuator produced and distribitued by Mallinckrodt Critical Care, undated.
Product literature dated Jan. 1993, on the 10070 Gastric Lavage Kit, manufactured by Autovage.
Product literature on TUM-E-VAC, manufactured by Ethox Corp.
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Product literature on the Monoject Edlich Gastric Lavage Kit, manufactured by Sherwood Medical.

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