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Last Updated: September 23, 2020

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Patent: 4,486,315

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Summary for Patent: 4,486,315
Title: Immunoassay microparticle washing system and method of use
Abstract:A particle washing system and method of use provides for the placement of the fluid containing the desired particles within an inner tube having near the bottom thereof an orifice plugged with a material for sealing the particulate containing fluid from a wash fluid under forces substantially equal to 1G. The inner tube is positioned within an outer tube which contains a wash fluid having a density at least equal to that of the particle containing solution but less than that of the particles. Application of centrifugal force, substantially greater than 1G, and directed toward the bottom of the outer tube, causes the sealing material to be dislodged thereby permitting the particles to move through the orifice and through the outer solution. Thus the particles are collected from the inner solution, washed by the outer solution, and pelleted at the bottom of the outer tube.
Inventor(s): Teipel; John W. (Skillman, NJ)
Assignee: Ortho Diagnostic Systems Inc. (Raritan, NJ)
Application Number:06/358,419
Patent Claims:see list of patent claims

Details for Patent 4,486,315

Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Estimated Patent Expiration Status Orphan Source
Grifols Usa, Llc PLASBUMIN albumin (human) SOLUTION 101138 1 1994-09-26   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
Baxalta Us Inc. FLEXBUMIN albumin human INJECTION, SOLUTION 101452 1 2014-07-31   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
Csl Behring Ag ALBURX albumin (human) SOLUTION 102366 1 2009-01-06   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
Grifols Usa, Llc ALBUTEIN albumin (human) INJECTION, SOLUTION 102478 1 2019-12-15   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
Grifols Usa, Llc HUMAN ALBUMIN GRIFOLS albumin (human) SOLUTION 103352 1 2003-06-11   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
Csl Behring Llc ALBUMINAR-25 albumin (human) SOLUTION 103955 1 2009-01-06   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
Octapharma Usa Inc ALBUMIN (HUMAN) albumin human SOLUTION 125154 1 2006-10-17   Start Trial Ortho Diagnostic Systems Inc. (Raritan, NJ) 2040-01-28 search
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Number >Approval Date >Patent No. >Assignee >Estimated Patent Expiration >Status >Orphan >Source

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