Surgery – Blood drawn and replaced or treated and returned to body
Patent
1997-05-06
2000-08-08
Bockelman, Mark
Surgery
Blood drawn and replaced or treated and returned to body
604 501, 604 609, 604 615, 604406, A61M 3700, A61B 1900
Patent
active
060994932
ABSTRACT:
A progressive filtration system for a chest drainage unit during continuous autrotransfusion comprising a gross filter for filtering incoming blood at the inlet portion of a collection chamber of a chest drainage unit and a conventional fine micron filter assembly located at the bottom portion of the collection chamber for refiltering collected blood prior to reinfusion of that blood back to the patient. The micron filter assembly includes a valve cap at the top portion of the assembly that functions as a plug to seal the top portion of the assembly and as a one way valve that permits reflux of later developing blood clots that might clog the tubing once the blood has already passed through the assembly.
The valve cap is also adapted for sealing engagement with a drop tube that places the filter assembly in fluid flow communication with an outlet of the collection chamber located at the top portion of the chamber.
REFERENCES:
patent: 3891553 (1975-06-01), Ayres
patent: 3896733 (1975-07-01), Rosenberg
patent: 3897340 (1975-07-01), Ayres
patent: 3929133 (1975-12-01), Ragab
patent: 4033345 (1977-07-01), Sorenson
patent: 4157965 (1979-06-01), Raible
patent: 4246107 (1981-01-01), Takenaka et al.
patent: 4402687 (1983-09-01), Denty et al.
patent: 4443220 (1984-04-01), Hauer et al.
patent: 4631050 (1986-12-01), Reed et al.
patent: 4798578 (1989-01-01), Ranford
patent: 4839290 (1989-06-01), Keida et al.
patent: 4923438 (1990-05-01), Vasconcellos et al.
patent: 4923451 (1990-05-01), McCormick
patent: 4954251 (1990-09-01), Barnes et al.
patent: 4981596 (1991-01-01), Shiino et al.
patent: 4988342 (1991-01-01), Herweck et al.
patent: 5024613 (1991-06-01), Vasconcellos et al.
patent: 5055198 (1991-10-01), Shettigar
patent: 5114416 (1992-05-01), Karwoski
patent: 5149325 (1992-09-01), Telang et al.
patent: 5215519 (1993-06-01), Shettigar
patent: 5269924 (1993-12-01), Rochat
patent: 5372593 (1994-12-01), Boehringer et al.
patent: 5439587 (1995-08-01), Stankowski et al.
patent: 5776338 (1998-07-01), Mari
Bianco Patricia M.
Bockelman Mark
Sherwood Services AG
LandOfFree
Continuous autotransfusion filtration system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous autotransfusion filtration system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous autotransfusion filtration system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1145572