Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1993-06-24
1994-07-19
Hirsch, Paul J.
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
604 49, 604181, A61M 500
Patent
active
053304241
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 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. 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.
REFERENCES:
patent: 13975 (1855-12-01), Buhler
patent: 386603 (1888-07-01), Parsons
patent: 1496126 (1924-06-01), Livingstone
patent: 3159312 (1954-12-01), VanSciver II
patent: 3398743 (1968-08-01), Shalit
patent: 3450134 (1969-06-01), Willgerodt
patent: 3818907 (1974-06-01), Walton
patent: 3828980 (1974-08-01), Creighton
patent: 4044757 (1977-08-01), McWhorter
patent: 4046166 (1977-09-01), Bender
patent: 4054137 (1977-10-01), Lee et al.
patent: 4260077 (1981-04-01), Schroeder
patent: 4535818 (1985-08-01), Duncan et al.
patent: 4643723 (1987-02-01), Smit
patent: 4662868 (1987-05-01), Cambio
patent: 4683916 (1987-08-01), Raines
patent: 4842581 (1989-06-01), Davis
patent: 4857056 (1989-08-01), Talonn
patent: 4872866 (1989-10-01), Davis
patent: 4883456 (1989-11-01), Holter
patent: 4883471 (1989-11-01), Braginetz et al.
patent: 4921488 (1990-05-01), Maitz et al.
patent: 4979942 (1990-12-01), Wolf et al.
patent: 5049135 (1991-09-01), Davis
patent: 5098405 (1992-03-01), Peterson et al.
patent: 5156600 (1992-10-01), Young
patent: 5169393 (1992-12-01), Moorehead et al.
Houghton William R.
Palmer Darrel
Ballard Medical Products
Foster Lynn G.
Hirsch Paul J.
LandOfFree
Medical lavage apparatus and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Medical lavage apparatus and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Medical lavage apparatus and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-516503