Patent classifications
A61M1/3698
Systems and methods for treating blood
According to some embodiments, a system may treat blood outside the body of a patient. The system may include one or more pumps configured to pump blood in a fluid flow path at a collective rate over 4 liters per minute. The system may include one or more heat exchangers operable to heat at least a portion of the blood to a temperature of at least 42 degrees Celsius and to allow the blood to cool one or more degrees following heating. The system may include one or more albumin dialysis modules configured to perform albumin dialysis on at least a portion of the blood at least after the one or more heat exchangers allow the blood to cool one or more degrees.
Composite fluid separation
Embodiments are described that include systems and methods for separating components of a composite fluid, e.g., whole blood. Some embodiments provide for processing a composite fluid by subjecting a volume of the fluid to a first centripetal acceleration for an initial separation, followed by a second centripetal acceleration for a second separation.
SYSTEM AND METHOD TO LYSE AND REMOVE RED BLOOD CELLS FROM A CELL PRODUCT
A method is provided for removing red blood cells from a suspension comprising red blood cells, white blood cells, platelets and plasma using a spinning membrane separator. The method comprises: a) flowing whole blood into the gap of the spinning membrane separator; b) collecting red blood cells and white blood cells in the gap and passing plasma and platelets through the membrane; c) introducing a first quantity of lysing buffer into the gap; d) incubating the red blood cells, white blood cells and lysing buffer in the gap for a period of time to cause a lysis reaction with the red blood cells; e) introducing a second quantity of lysing buffer into the gap to displace the first quantity of lysing buffer and a first quantity of red blood cell debris out of the gap; f) introducing a first quantity of wash buffer into the gap to quench the lysis reaction and displace the second quantity of lysing buffer and a second quantity of red blood cell debris out of the gap; and g) introducing a second quantity of wash buffer into the gap to flow washed white blood cells out of the housing.
Sequential processing of biological fluids
A process for the sequential processing of opaque and transparent biological fluids such as whole blood, apheresis blood, bone marrow blood, umbilical cord blood, buffy coat or cultured cells by processing steps in a hollow cylindrical centrifugal processing chamber (300) which is part of a disposable set. At least three different procedures selected from washing, incubation, transduction, separation, density gradient separation, dilution and volume adjustment are each carried out once or repeated a number of times according to a given processing profile in the processing chamber. Each procedure involves an input into the processing chamber, an operation in the processing chamber and an output from the processing chamber by displacement of a piston (310). The at least three different procedures are sequentially chained one after the other to constitute an overall sequential operation in the processing chamber and its disposable set. A first application is incubation for binding magnetic beads with human blood cells or stem cells. A second application is transduction by which foreign genetic material is inserted into human blood cells or stem cells by a virus. A third application is reconditioning biological fluids to achieve reproducible concentration and volumes of blood cells or stem cells.
A Bioprocessing System
Disclosed is a bioprocessing system comprising apparatus (200) including a centrifugal separation housing (210) having a temperature controllable compartment (215) for removably accepting a separation chamber (50), the apparatus further comprising at least one mixing station (250) for supporting one or more fluid storage vessels (10, 20, 30, 40), the station including a temperature controllable area (252) for increasing or decreasing the temperature of the contents of the or each supported vessel. The system further includes a disposable fluidic arrangement (100) including a centrifugal separation chamber (50) removably mountable within the compartment (215) and having one or more ports (52) allowing fluid ingress into, or egress out of the chamber, via the one or more ports in use, said ports being in fluid communication with one or more of said fluid storage vessels via fluid conduits (12, 22, 32, 42) and via one or more valve arrangements
Device, system and method for the continuous processing and separation of biological fluids into components
A device for the processing and separation of biological fluids into components comprises a hollow centrifugal processing chamber (10) fitted with an inlet/outlet head (20) and preferably with an axially movable piston (18). The inlet/outlet head has two separate inlets/outlets, for instance an axial inlet (29) and a lateral outlet (40). The processing chamber (1) is fitted with an internal flow guide (30) enabling operation of the device in a continuous processing mode wherein biological fluid to be processed is continuously intaken by say the axial inlet (29) and at the same time processed components are continuously removed via say the lateral outlet (40). The continuous processing flow can be driven by an external peristaltic pump (59) and/or by axial displacement of a piston (18) in the chamber (10).
DEVICE, SYSTEM AND METHOD FOR THE CONTINUOUS PROCESSING AND SEPARATION OF BIOLOGICAL FLUIDS INTO COMPONENTS
A device for the processing and separation of biological fluids into components comprises a hollow centrifugal processing chamber (10) fitted with an inlet/outlet head (20) and preferably with an axially movable piston (18). The inlet/outlet head has two separate inlets/outlets, for instance an axial inlet (29) and a lateral outlet (40). The processing chamber (1) is fitted with an internal flow guide (30) enabling operation of the device in a continuous processing mode wherein biological fluid to be processed is continuously intaken by say the axial inlet (29) and at the same time processed components are continuously removed via say the lateral outlet (40). The continuous processing flow can be driven by an external peristaltic pump (59) and/or by axial displacement of a piston (18) in the chamber (10).
Systems and Methods for Treating Blood
According to some embodiments, a system may treat blood outside the body of a patient. The system may include one or more pumps configured to pump blood in a fluid flow path at a collective rate over 4 liters per minute. The system may include one or more heat exchangers operable to heat at least a portion of the blood to a temperature of at least 42 degrees Celsius and to allow the blood to cool one or more degrees following heating. The system may include one or more albumin dialysis modules configured to perform albumin dialysis on at least a portion of the blood at least after the one or more heat exchangers allow the blood to cool one or more degrees.
Device, system and method for the continuous processing and separation of biological fluids into components
A device for the processing and separation of biological fluids into components comprises a hollow centrifugal processing chamber (10) fitted with an inlet/outlet head (20) and preferably with an axially movable piston (18). The inlet/outlet head has two separate inlets/outlets, for instance an axial inlet (29) and a lateral outlet (40). The processing chamber (1) is fitted with an internal flow guide (30) enabling operation of the device in a continuous processing mode wherein biological fluid to be processed is continuously intaken by say the axial inlet (29) and at the same time processed components are continuously removed via say the lateral outlet (40). The continuous processing flow can be driven by an external peristaltic pump (59) and/or by axial displacement of a piston (18) in the chamber (10).
SEQUENTIAL PROCESSING OF BIOLOGICAL FLUIDS
A process for the sequential processing of opaque and transparent biological fluids such as whole blood, apheresis blood, bone marrow blood, umbilical cord blood, buffy coat or cultured cells by processing steps in a hollow cylindrical centrifugal processing chamber (300) which is part of a disposable set. At least three different procedures selected from washing, incubation, transduction, separation, density gradient separation, dilution and volume adjustment are each carried out once or repeated a number of times according to a given processing profile in the processing chamber. Each procedure involves an input into the processing chamber, an operation in the processing chamber and an output from the processing chamber by displacement of a piston (310). The at least three different procedures are sequentially chained one after the other to constitute an overall sequential operation in the processing chamber and its disposable set. A first application is incubation for binding magnetic beads with human blood cells or stem cells. A second application is transduction by which foreign genetic material is inserted into human blood cells or stem cells by a virus. A third application is reconditioning biological fluids to achieve reproducible concentration and volumes of blood cells or stem cells.