Methods and apparatus for isolating platelets from blood

Details Methods and apparatus for isolating platelets from blood Methods and apparatus for isolating platelets from blood

2007-05-29

2007-05-29

Menon, Krishnan S. (Department: 1723)

Liquid purification or separation

Processes

Separating

C210S109000, C210S121000, C210S512100, C210S518000, C210S789000, C422S105000, C494S016000, C494S037000, C494S045000, C494S048000, C494S056000

Reexamination Certificate

active

11108387

ABSTRACT:
A platelet collection device comprising a centrifugal spin-separator container with a cavity having a longitudinal inner surface. A float in the cavity has a base, a platelet collection surface above the base, an outer surface. The float density is below the density of erythrocytes and above the density of plasma. The platelet collection surface has a position on the float which places it below the level of platelets when the float is suspended in separated blood. During centrifugation, a layer of platelets or buffy coat collects closely adjacent the platelet collection surface. Platelets are then removed from the platelet collection surface. Movement of a float having a density greater than whole blood through the sedimenting erythrocytes releases entrapped platelets, increasing the platelet yield.

REFERENCES:
patent: 3850369 (1974-11-01), Bull et al.
patent: 3897343 (1975-07-01), Ayres
patent: 3909419 (1975-09-01), Ayres
patent: 3931018 (1976-01-01), North, Jr.
patent: 3982691 (1976-09-01), Schultz
patent: 4046699 (1977-09-01), Zine, Jr.
patent: 4055501 (1977-10-01), Cornell
patent: 4077396 (1978-03-01), Wardlaw et al.
patent: 4187979 (1980-02-01), Cullis et al.
patent: 4322298 (1982-03-01), Persidsky
patent: 4416654 (1983-11-01), Schoendorfer et al.
patent: 4464167 (1984-08-01), Schoendorfer et al.
patent: 4675117 (1987-06-01), Neumann et al.
patent: 4776964 (1988-10-01), Schoendorfer et al.
patent: 4818386 (1989-04-01), Burns
patent: 4853137 (1989-08-01), Ersson
patent: 5019243 (1991-05-01), McEwen et al.
patent: 5053127 (1991-10-01), Schoendorfer et al.
patent: 5131907 (1992-07-01), Williams et al.
patent: 5141645 (1992-08-01), Shiraki et al.
patent: 5147290 (1992-09-01), Jonsson
patent: 5165938 (1992-11-01), Knighton
patent: 5171456 (1992-12-01), Hwang et al.
patent: 5185001 (1993-02-01), Galanakis
patent: 5234608 (1993-08-01), Duff
patent: 5269927 (1993-12-01), Fiehler
patent: 5271852 (1993-12-01), Luoma, II
patent: 5318782 (1994-06-01), Weis-Fogh
patent: 5322620 (1994-06-01), Brown et al.
patent: 5344752 (1994-09-01), Murphy
patent: 5370802 (1994-12-01), Brown
patent: 5387187 (1995-02-01), Fell et al.
patent: 5403272 (1995-04-01), Deniega et al.
patent: 5456885 (1995-10-01), Coleman et al.
patent: 5494578 (1996-02-01), Brown et al.
patent: 5494592 (1996-02-01), Latham, Jr. et al.
patent: 5585007 (1996-12-01), Antanavich et al.
patent: 5601727 (1997-02-01), Bormann et al.
patent: 5607579 (1997-03-01), Latham, Jr. et al.
patent: 5614106 (1997-03-01), Payrat et al.
patent: 6022306 (2000-02-01), Dumont et al.
patent: 6025201 (2000-02-01), Zelmanovic et al.
patent: 6051146 (2000-04-01), Green et al.
patent: 6053856 (2000-04-01), Hlavinka
patent: 6054122 (2000-04-01), MacPhee et al.
patent: 6071423 (2000-06-01), Brown et al.
patent: 6090793 (2000-07-01), Zimmermann et al.
patent: 6096309 (2000-08-01), Prior et al.
patent: 6117425 (2000-09-01), MacPhee et al.
patent: 6196987 (2001-03-01), Holmes et al.
patent: 6197325 (2001-03-01), MacPhee et al.
patent: 6200287 (2001-03-01), Keller et al.
patent: 6214338 (2001-04-01), Antanavich et al.
patent: 6245900 (2001-06-01), Yamasaki et al.
patent: 6280400 (2001-08-01), Niermann
patent: 6296602 (2001-10-01), Headley
patent: 6322785 (2001-11-01), Landesberg et al.
patent: 6516953 (2003-02-01), DiCesare et al.
patent: 0142339 (1985-05-01), None
patent: 0417818 (1991-03-01), None
patent: 1005910 (2000-06-01), None
patent: WO 03/015800 (2003-02-01), None

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