1
Charles M Dole, Gary L Webster, Ward C Smith: Immunoassay or diagnostic device and method of manufacture. Dole Associates, Bachman & LaPointe, December 18, 1990: US04978502 (95 worldwide citation)

Liquid containers or receptacles are disclosed with cooperating means for rupturing the receptacles to release contained fluid to rain upon test specimens. Structure is disclosed for rupturing receptacles in response to relative motion occurring between receptacles and test specimen support members ...


2
Albert A Luderer, Ward C Smith: Lymphocyte collection tube. Becton Dickinson and Company, Hoffmann & Baron, October 1, 1991: US05053134 (95 worldwide citation)

This invention relates to an assembly for centrifugally separating lymphocytes and monocytes from the heavier phases in samples of human blood utilizing a liquid density gradient medium. The particular inventive subject matter concerns the use of novel partition means initially separating the liquid ...


3
Ward C Smith: Method for separating the cellular components of blood samples. Becton Dickinson & Company, Hoffman & Baron, July 4, 1989: US04844818 (93 worldwide citation)

An assembly for separating lymphocytes and monocytes from granulocytes in a sample of unseparated whole blood. A water insoluble, thixotropic gel-like substance, which is chemically inert to blood constituents is provided in a container. A fluid capable of altering blood cell densities and diameters ...


4
Albert A Luderer, Ward C Smith: Lymphocyte collection tube. Becton Dickinson and Company, Hoffmann & Baron, April 17, 1990: US04917801 (83 worldwide citation)

This invention relates to an assembly for centrifugally separating lymphocytes and monocytes from the heavier phases in samples of human blood utilizing a liquid density gradient medium. The particular inventive subject matter concerns the use of novel partition means initially separating the liquid ...


5
Ward C Smith: Method for separating the cellular components of blood samples. Becton Dickinson and Company, Hoffmann & Baron, September 18, 1990: US04957638 (67 worldwide citation)

An assembly for separating lymphocytes and monocytes from granulocytes in a sample of unseparated whole blood. A water insoluble, thixotropic gel-like substance, which is chemically inert to blood constituents is provided in a container. A fluid capable of altering blood cell densities and diameters ...


6
Ward C Smith, Richard J Carroll: Method of using anticoagulant solution in blood separation. Becton Dickinson, Hoffmann & Baron, February 27, 1996: US05494590 (51 worldwide citation)

An anticoagulant solution of sodium citrate for use in blood chemistry-related techniques and apparatus is disclosed. The anticoagulant solution should include an effective concentration of sodium citrate sufficient for preventing the coagulation of a sample of blood employed in the technique or add ...


7
Ward C Smith: Method and apparatus for separating mononuclear cells from blood. Becton Dickinson and Company, Hoffmann & Baron, September 19, 1989: US04867887 (36 worldwide citation)

A blood separation device includes a collection tube containing a first layer of a thixotropic gel-like substance and a second layer of a newtonian gel-like substance which is positioned below the first layer. The first layer of the thixotropic substance is positioned between the second layer of the ...


8
Richard J Carrol, Albert A Fluderer, Ward C Smith, Anthony R Zine Jr: Separation of lymphocytes and monocytes from blood samples. Becton Dickinson & Company, Hoffmann & Baron, March 28, 1989: US04816168 (34 worldwide citation)

This invention is directed to means for inhibiting the apparent shift in the buoyant density of and/or to restore any loss in the buoyant density of the granulocytic white blood cells in a sample of blood, thereby insuring the quality of the separation of lymphocytes and monocytes from granulocytes ...


9
Richard J Carroll, Albert A Luderer, Ward C Smith, Anthony R Zine Jr: Separation of lymphocytes and monocytes from blood samples. Becton Dickinson and Company, Hoffman Dilworth Barrese & Baron, February 3, 1987: US04640785 (23 worldwide citation)

This invention is directed to means for inhibiting the apparent shift in the buoyant density of and/or to restore any loss in the buoyant density of the granulocytic white blood cells in a sample of blood, thereby insuring the quality of the separation of lymphocytes and monocytes from granulocytes ...


10
Ward C Smith: Apparatus for separating mononuclear cells from blood and method of manufacturing and using the same. Becton Dickinson and Company, Hoffmann & Baron, September 4, 1990: US04954264 (18 worldwide citation)

A device for separating mononuclear cells from blood includes a collection tube, a first layer of a liquid density gradient material placed in the tube, a second layer of a gel-like substance placed in the tube and situated above the first layer, a porous foam member placed in the tube and situated ...