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Express Scripts
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Last Updated: December 3, 2021

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Patent: 5,629,209

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Summary for Patent: 5,629,209
Title: Method and apparatus for detecting viscosity changes in fluids
Abstract:An apparatus for detecting changes in the viscosity of a fluid comprises a cartridge having a fluid receiving/dispensing reservoir, one or more fluid-receiving chambers, and a conduit that permits fluid communication between the fluid receiving/dispensing reservoir and the fluid-receiving chamber. Fluid is introduced into the cartridge through an injection port and fills the reservoir, moving from the reservoir through the conduit into the chamber. An air vent/fluid plug device in fluid communication with the chamber permits air to exit while the fluid enters the system but prevents the fluid from leaving after the chamber is filled. A freely movable ferromagnetic material is placed within the fluid-receiving chamber and is caused to move by an electromagnet. Changes in the viscosity of the fluid are detected by determining the position of the ferromagnetic material in the fluid-receiving chamber.
Inventor(s): Braun, Sr.; Walter J. (Aurora, CO), Boiarski; Anthony A. (Upper Arlington, OH), Braun, Jr.; Walter J. (Aurora, CO), Braun; Steven P. (Peoria, AZ)
Application Number:08/545,523
Patent Claims:see list of patent claims

Details for Patent 5,629,209

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Grifols Biologicals Llc PROFILNINE, PROFILNINE HP, PROFILNINE HT, PROFILNINE SD factor ix complex For Injection 102476 1981-07-20 ⤷  Try it Free 2040-01-28
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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