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Methods and apparatus for collection of filtered blood components

A technology for blood components and red blood cells, applied in blood filtration, blood circulation processing, blood transfusion devices, etc., can solve problems such as cell damage and affecting the final quality of components

Inactive Publication Date: 2012-10-03
TERUMO BCT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such active pumping can lead to cell damage and thus affect the final quality of the collected components

Method used

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  • Methods and apparatus for collection of filtered blood components
  • Methods and apparatus for collection of filtered blood components
  • Methods and apparatus for collection of filtered blood components

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Embodiment Construction

[0022] The invention will be described with reference to the accompanying drawings which help illustrate its pertinent features. In general, the main aspects of the present invention relate to procedural and structural improvements to apheresis systems. However, some of these improvements may be applicable to other extracorporeal blood treatment uses, whether any blood components are returned directly to the donor or otherwise; and these are also within the scope of the present invention.

[0023] A preferred apheresis system 2 for use in and / or for use in the present invention is schematically shown at figure 1middle. System 2 preferably allows for a continuous apheresis process. Typically, whole blood is drawn from a donor and provided substantially continuously to a blood component separation device 6 where the blood is continuously separated into various component types and at least one of these blood component types The species are preferably collected continuously fr...

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Abstract

A method and apparatus for red blood collection and filtration is provided wherein a red blood cell collection assembly provides for leukoreduction filtration concurrent with or soon after the red blood cell separation and collection procedure. After red blood cells have been collected, an unwanted blood component, e.g., buffy coat, is diverted into the red blood cell collect line. Operation of a peristaltic pump engaging pump loop allows insertion of a pre-determined quantity of buffy coat into the collect line. The buffy coat can therefore push red blood cells out of the filter and into a collect bag without diluting the collected red blood cells. Alternatively, gravitational force may be used to allow the unwanted blood component to displace red blood cells out of the filter.

Description

technical field [0001] The present invention relates generally to the field of extracorporeal blood treatment methods and apparatus, which are particularly useful in the collection of blood components, and more particularly relates to the field of leukocyte reduction and A method and apparatus for recovering red blood cells from a filter using blood components. Background technique [0002] One well-known type of extracorporeal blood processing involves an apheresis system and / or process in which blood is removed from a donor and directed to an apheresis device (e.g., centrifuge) and separate into various blood component types (eg, red blood cells, white blood cells, platelets, plasma). One or more or all of these blood component types may be collected and / or processed for therapeutic purposes prior to storage or return to the patient, while the remainder may simply be returned to the donor or patient. In such a system, only specific components of interest (such as red blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/34A61M1/36A61M1/02
CPCA61M1/0209A61M1/3693A61M1/0218A61M1/0231A61M1/3696A61M1/3616A61M1/362266A61M1/362262A61M1/36225A61M1/36222A61M1/362265A61M1/36224
Inventor B·W·吉布斯
Owner TERUMO BCT
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