A system for filtering and processing blood that is simple to implement and that reduces the need for human intervention. The system may be used to collect red blood cells (RBCs). For such a system, a disposable set may be provided with an inlet port, an RBC container, a centrifuge rotor having a va
A system for filtering and processing blood that is simple to implement and that reduces the need for human intervention. The system may be used to collect red blood cells (RBCs). For such a system, a disposable set may be provided with an inlet port, an RBC container, a centrifuge rotor having a variable total volume, and a filter, along with tubing connecting the port, the container, the rotor and the filter. The filter is located in tubing between the inlet port and the rotor. A control unit is also provided and includes a spinner in which the rotor may be held, a flow-control arrangement for controlling flow among the various components of the disposable set, and an electronic controller. The whole blood is directed by the flow-control arrangement from the inlet through the filter to the rotor. The rotor includes an elastic diaphragm, and the control unit's flow-control arrangement includes a pump or other device for applying a positive and negative pressure to the rotor's elastic diaphragm. The spinner rotates the rotor so as to separate the whole blood into plasma and RBCs. Preferably, the plasma is urged out of the rotor first and returned to the donor, while the rotor is still being spun. After the plasma has been removed from the rotor, the RBCs are urged from the rotor to an RBC container. In preferred embodiments, the filter is a white blood cell filter, so that white blood cells are filtered from the blood before it reaches the rotor.
대표청구항▼
What is claimed is: 1. A system for processing blood, the system comprising: a disposable set having a port for permitting the introduction of blood from a whole blood source into the disposable set, a variable-volume centrifuge rotor wherein the whole blood is separated into components, a filter t
What is claimed is: 1. A system for processing blood, the system comprising: a disposable set having a port for permitting the introduction of blood from a whole blood source into the disposable set, a variable-volume centrifuge rotor wherein the whole blood is separated into components, a filter that is located in a fluid path between the port and rotor, and a blood-component container for storing a separated blood component, the blood-component container being in fluid communication with the rotor; and a control unit having a flow-control arrangement which urges a blood component from the rotor to the blood-component container after the blood has been separated, the control unit further including means for spinning the rotor and for varying the volume of the rotor. 2. The system according to claim 1, wherein the centrifuge rotor includes an elastic diaphragm which defines the volume of the rotor, and wherein the control unit includes means for varying gas pressure adjacent the elastic diaphragm. 3. The system according to claim 2, wherein the means for varying gas pressure includes means for applying a vacuum to the elastic diaphragm, so as to draw blood into the rotor. 4. The system according to claim 1, wherein the filter is capable of filtering white blood cells from whole blood passing through the filter. 5. A system for collecting red blood cells from a donor, the system comprising: a disposable set having a port for permitting the introduction of blood from the donor into the disposable set; a centrifuge rotor having a variable total volume; a filter that is located in a fluid path between the port and rotor; return means for permitting return of plasma to the donor, the return means being in fluid communication with the centrifuge rotor; and an RBC container in fluid communication with the centrifuge rotor; and a control unit having a spinner that holds the rotor, the spinner being able to spin the rotor so as to separate blood into blood components; and a flow-control arrangement which urges a blood component from the rotor while the rotor is being spun. 6. The system according to claim 5, wherein the control unit further includes means for varying the volume of the rotor. 7. The system according to claim 6, wherein the centrifuge rotor includes an elastic diaphragm which defines the volume of the rotor, and wherein the control unit includes means for varying gas pressure adjacent the elastic diaphragm. 8. The system according to claim 7, wherein the means for varying gas pressure includes means for applying a vacuum to the elastic diaphragm, so as to draw blood into the rotor. 9. The system according to claim 7, wherein the filter is capable of filtering white blood cells from whole blood passing through the filter. 10. The system according to claim 5, wherein the return means includes a temporary storage container.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (89)
Bilstad Arnold C. (Deerfield IL) Brown Richard I. (Northbrook IL) Kruger Robert J. (Arlington Heights IL), Actuator apparatus for a prepackaged fluid processing module having pump and valve elements operable in response to appl.
McMannis John D. (Evergreen CO) London Nicholas (Evington GBX), Apparatus and method for separating microscopic units in a substantially continuous density gradient solution.
McMannis John D. (Evergreen CO) London Nicholas (Evington GBX), Apparatus and method for separating microscopic units in a substantially continuous density gradient solution.
Hlavinka Dennis (Golden CO) Langley Robert (Westminster CO) Taylor Linda (Littleton CO) Walker John C. (Boulder CO), Apparatus for separating particles.
Sorenson James L. (Salt Lake City UT) Pannier ; Jr. Karl A. (Salt Lake City UT) Reynolds Gordon S. (Bountiful UT), Autologous transfusion filter system and method.
Sorenson James L. (Salt Lake City UT) Pannier ; Jr. Karl A. (Salt Lake City UT) Reynolds Gordon S. (Bountiful UT), Autologous transfusion system and method.
Krasnoff Eric J. ; Bormann Thomas J. ; Gsell Thomas C. ; Pascale Frank R. ; Matkovich Vlado I., Automated system and method for processing biological fluid.
Barone David (Sharon MA) Herrig Russell (Sharon MA) Kaleskas Edward (Jefferson MA) Porreca Ronald (Needham MA) Stenfors Alan L. (Scituate MA) Vandor Robert (Walpole MA) Medberry Joseph M. (Seekonk MA, Blood processing method and apparatus with disposable cassette.
Bauman Ronald H. (Arcadia CA) Denton Donald R. (San Dimas CA) Dupin William W. (Covina CA) Nelson Edward J. (San Rafael CA) Sajan Eva (Oakland CA), Bottom blood bag separation system.
Schoendorfer Donald W. (67 Balboa Coves Santa Ana CA) McLaughlin William F. (67 Balboa Coves Newport Beach CA 92663), Closed hemapheresis system and method.
Bacehowski David V. (Wildwood IL) Cullis Herbert M. (Silver Spring MD) VanBaelen Armand R. (Rolling Meadows IL), Combination disposable plastic blood receiving container and blood component centrifuge.
Thor Eric J. (Columbia Heights MN) McIntosh Kevin D. (Albertville MN) Jones Bruce R. (Plymouth MN) Dando Jeremy D. (Plymouth MN), Combined cardiotomy and venous blood reservoir.
Pusineri Christian (St Symphorien d\Ozon FRX) Cronenberger Michel (Mornant FRX), Integrated device for the biospecific purification of a liquid containing cellular elements.
Cullis Herbert M. (Silver Spring MD) Almond ; Anthony L. (Silver Spring MD) Uffer Michael B. (Baltimore MD) Kohja Mirza A. (Columbia MD) Rodgriguez Rodolfo R. (Columbia MD), Method and apparatus for separating whole blood into its components and for automatically collecting one component.
Brown Richard I. (Northbrook IL) Cerny David E. (Crystal Lake IL) Foley John T. (Wheeling IL) West ; Jr. Joseph C. (Fox Lake IL), Plasma collection set.
Brown Richard I. (Northbrook IL) Cerny David E. (Crystal Lake IL) Foley John T. (Wheeling IL) West ; Jr. Joseph C. (Fox Lake IL), Plasma collection set and method.
Boehringer John R. (Wynnewood PA) Karpowicz John (Glenmoore PA) Bence Jeffrey (Bensalem PA), Process and apparatus for collecting blood of a patient for autotransfusion.
Kaleskas Edward W. (Jefferson MA) Minior ; Jr. Thaddeus G. (Bedford MA) Nott Sepideh H. (Fall River MA), Rotary centrifuge bowl and seal for blood processing.
MacPherson ; Jr. John W. (Snohomish WA) O\Neal Brian L. (Bothell WA), System for filtering liquids in a catch basin using filters in series and overflow channels.
Christie Douglas J. (St. Paul MN) Howe Robert B. (Wayzata MN), Treatment of aluimmunization and refractoriness to platelet transfusion by protein A column therapy.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.