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Blood Processing Systems And Methods That Employ An In-Line Flexible Leukofilter

a flexible leukofilter and processing system technology, applied in the field of blood processing systems and methods that employ, can solve the problems of complex and sophisticated operation and performance demands of fluid processing systems, affecting the efficiency of blood collection, and affecting the quality of blood collection, etc., to achieve straightforward and accurate control functions.

Inactive Publication Date: 2009-08-06
BAXTER INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides systems and methods for processing blood and blood constituents that are portable and easy to control. One aspect of the invention is a blood processing set that includes a source of blood cells and a blood component collection flow channel with an in-line filter to remove leukocytes from the blood cells before storage. The filter includes a fibrous filter medium, flexible housings, and a continuous peripheral seal formed by pressure and radio-frequency heating. The blood processing system also includes a pump station to pump blood into the blood cell storage container through the filter. The invention also includes a fixture to restrain expansion of the filter housings during operation of the pump station. The source of blood cells can include a donor flow channel with a blood separation device to separate blood cells from donor whole blood.

Problems solved by technology

Conventional blood centrifuges are of a size that does not permit easy transport between collection sites.
Furthermore, loading and unloading operations can sometimes be time consuming and tedious.
The operational and performance demands upon such fluid processing systems become more complex and sophisticated, even as the demand for smaller and more portable systems intensifies.

Method used

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Embodiment Construction

[0037]FIG. 1 shows a fluid processing system 10 that embodies the features of the invention. The system 10 can be used for processing various fluids.

[0038]The system 10 is particularly well suited for processing whole blood and other suspensions of biological cellular materials. Accordingly, the illustrated embodiment shows the system 10 used for this purpose.

I. System Overview

[0039]The system 10 includes three principal components. These are: (i) a liquid and blood flow set 12 (shown schematically in FIG. 3); (ii) a blood processing device 14 (see FIGS. 1 and 2), which interacts with the flow set 12 to cause separation and collection of one or more blood components; and (iii) a controller 16 carried on board the device 14, which governs the interaction to perform a blood processing and collection procedure selected by the operator.

[0040]A. The Processing Device and Controller

[0041]The blood processing device 14 and controller 16 are intended to be durable items capable of long term...

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Abstract

Systems and methods separate pump the blood cells through an in-line leukofilter to a blood cell storage container. The leukofilter has a filtration medium enclosed within a flexile housing. The systems and methods can employ a fixture to restrain expansion of the flexible filter housing during operation of the pump.

Description

RELATED APPLICATIONS[0001]This application is a continuation of co-pending U.S. application Ser. No. 09 / 976,833, filed Oct. 13, 2001, and entitled Blood Separation Systems and Methods that Employ an In-Line Leukofilter Mounted in a Restraining Fixture,” which is a continuation-in-part of U.S. patent application Ser. No. 09 / 389,504, filed Sep. 3, 1999, and entitled “Blood Separation Systems and Methods Using a Multiple Function Pump Station to Perform Different On-Line Processing Tasks,” which is incorporated herein by reference.FIELD OF THE INVENTION[0002]This invention relates to systems and methods for processing and collecting blood, blood constituents, or other suspensions of cellular material.BACKGROUND OF THE INVENTION[0003]Today people routinely separate whole blood, usually by centrifugation, into its various therapeutic components, such as red blood cells, platelets, and plasma.[0004]Conventional blood processing methods use durable centrifuge equipment in association with ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M1/36B01D61/30A61M1/02A61M1/10A61M1/30
CPCA61M1/0209A61M1/3696A61M1/30A61M1/3633A61M1/3693A61M2205/12A61M2205/128A61M2205/331A61M2205/3393A61M1/0218A61M1/302A61M1/303A61M1/308A61M1/3636A61M1/1037A61M60/113A61M60/43A61M1/362265A61M1/362227A61M1/362261A61M1/362266A61M1/36225A61M1/00
Inventor VANDLIK, MARK R.KAST, MICHAEL JSMITH, KELLY B.WESTBERG, TOMVISHNOI, ROHIT
Owner BAXTER INT INC
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