Separation of cells from liquid components of blood
First Claim
1. A method for separating a blood cell portion and a liquid portion of a whole blood sample, comprising the steps of:
- contacting over a period of time a substance in the form of a nonparticulate gel mass with said whole blood sample, so as to diffuse the liquid portion thereof into said gel mass, said gel mass having an effective pore size to exclude the blood cell portion, and collecting the blood cell portion remaining after contact of said sample with said gel mass.
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Accused Products
Abstract
A method for separating a blood cell portion and a liquid portion of a whole blood sample comprising the steps of contacting over a period of time a substance in the form of a nonparticulate gel mass with the sample, so as to diffuse the liquid portion into the mass, the mass having an effective pore size to exclude the blood cells, and collecting the blood cells remaining after such contact of the sample with the mass. The method may include impregnating the substance of the mass with a selective reagent to react with the liquid portion diffused therein, and furthr include analyzing a reaction product produced within the mass.
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Citations
13 Claims
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1. A method for separating a blood cell portion and a liquid portion of a whole blood sample, comprising the steps of:
- contacting over a period of time a substance in the form of a nonparticulate gel mass with said whole blood sample, so as to diffuse the liquid portion thereof into said gel mass, said gel mass having an effective pore size to exclude the blood cell portion, and collecting the blood cell portion remaining after contact of said sample with said gel mass.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method as defined in claim 9, wherein:
- said analyzing step includes concurrently analyzing all said reaction products.
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10. An article, comprising:
- a substrate, means supported from said substrate for separating a whole blood sample into a cell portion and a liquid portion when contacted over a period of time with said sample, said means comprising a nonparticulate gel mass for diffusion thereinto of said liquid portion, said gel mass having an effective pore size to exclude said cell portion, and a selected reagent in said gel mass to react with said sample portion when the latter is diffused into said gel mass, said gel mass defining a sample-receiving well therein, said substrate comprising an upright cuvette within which said gel mass is vertically supported and further including a moisture-impervious barrier above said gel mass in abutment therewith and located a distance below the top of said cuvette, said barrier defining a vertical opening therethrough forming a part of said well, said cuvette and said barrier defining a well enlargement.
- View Dependent Claims (11, 12, 13)
Specification