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Last Updated: December 8, 2021

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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 Approval Date Patent No. Expiredate
Grifols Therapeutics Llc ALBUKED, PLASBUMIN-20, PLASBUMIN-25, PLASBUMIN-5 albumin (human) For Injection 101138 1942-10-21 ⤷  Free Forever Trial 2040-01-28
Baxalta Us Inc. BUMINATE, FLEXBUMIN albumin (human) Injection 101452 1954-03-03 ⤷  Free Forever Trial 2040-01-28
Csl Behring Ag ALBURX albumin (human) Injection 102366 1976-07-23 ⤷  Free Forever Trial 2040-01-28
Grifols Biologicals Llc ALBUTEIN albumin (human) Injection 102478 1978-08-15 ⤷  Free Forever Trial 2040-01-28
Instituto Grifols, S.a. HUMAN ALBUMIN GRIFOLS albumin (human) Injection 103352 1995-02-17 ⤷  Free Forever Trial 2040-01-28
Instituto Grifols, S.a. HUMAN ALBUMIN GRIFOLS albumin (human) Injection 103352 2003-06-11 ⤷  Free Forever Trial 2040-01-28
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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