Patent · US Expired

Method for obtaining platelets

US5258126A · kind A · utility

97Cited by

63References

10Claims

0Family size

Assignee

Pall Corporation · US

Inventors

David B. Pall · Glen Cove, US
Thomas C. Gsell · Dillingen/Saar, DE

Key dates

Filing date	Mar 5, 1992
Grant date	Nov 2, 1993
Priority date	—
Expiry date	Mar 5, 2012

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2206/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method is provided for processing donated blood, particularly a platelet-containing solution such as platelet-containing plasma, involving separating blood into a red cell containing sediment layer and a supernatant layer, and passing the supernatant layer through a filter until the filter is blocked, thereby leaving platelets to be harvested. The preferred filter comprises a porous medium having a plurality of zones of progressively increasing density.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.