The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 1981
Filed:
May. 05, 1980
Maxim D Persidsky, San Francisco, CA (US);
The Institutes of Medical Sciences, San Francisco, CA (US);
Abstract
This invention relates to a method and apparatus for the separation of finely divided solid particles dissimilar in size and/or density, such as platelets and other blood cells. The separation of, for instance, platelets is accomplished by subjecting the blood sample to centrifugal force in the chamber while displacing the platelets from the blood sample by injecting a relatively small volume of saline into the centrifugally outer end of the chamber. In the preferred apparatus, the saline is injected into che blood sample by driving the chamber supporting the blood sample into a saline filled cavity under the influence of centrifugal force.