摘要:
Programmable, fluid pressure actuated blood processing systems (10) and methods are used in association with a blood separation device (18). The systems and methods employ a cassette (28), which contains several preformed, pneumatically actuated pump stations (PP1-PP4), several preformed fluid flow paths (F1-F38), and several preformed, pneumatically actuated (VA1-VA23) valves (1-23) in the fluid flow paths. The systems and methods also employ progr ammable pneumatic actuators (PA1-PA4) to hold the cassette and selectively apply pneumatic force to the valves and the pump stations.
摘要:
Automated systems and method for processing blood and other fluids are disclosed. The systems and methods utilize a disposable fluid circuit selected from one of two or more circuits. The circuits are mounted on a re-usable hardware component or module. The system includes a programmable controller including programs for use with the fluid circuits.
摘要:
Blood processing systems (10) and related methods place first (PP1) and second (PP2) fluid actuated pump stations in in-line communication between a source and a destination. The systems and methods apply fluid pressure pump strokes to the first and second pump stations to convey fluid from the source to the destination. The systems and methods switch between a first flow mode and a second flow mode. The first flow draws a fluid volume into the first pump station from the source and expel a fluid volume from the second pump station to the destination. In the second flow mode, the pump strokes draw a fluid volume into the second pump station from the source and expel a fluid volume from the first pump station to the destination. The pump strokes are synchronized so that flow from the source is essentially continuous while fluid flow to the destination is pulsatile.
摘要:
A multiple function pump station (PPN) performs different on-line processing tasks. The pump station can be operated in one mode to draw blood from a donor and can in another mode be operated to return blood to the donor. The pump station used to draw blood from a donor can also be used to perform subsequent blood processing tasks, such as mixing processing or additive fluids with the blood, or transferring a harvested blood component to a storage container, or finishing the processing of a harvested blood component, e.g., by passage through a filter (200) to remove leukocytes.
摘要:
A peritoneal dialysis method includes (i) connecting smaller and larger supply containers to a junction, the smaller and larger supply bags both full of dialysate; (ii) allowing the junction to be connected to a patient's transfer set; allowing the patient to drain through the junction; (iii) allowing the patient to fill from the smaller supply container; and (iv) allowing the patient to refill the smaller supply container from the larger supply container.
摘要:
Automated systems and methods for withdrawing and replacing fluids in a patient are disclosed. The system withdraws blood from a donor or patient, separates the blood into two or more components and collects the separated component. A replacement fluid capable of at least partially providing the biological function of the separated component is infused into the patient.
摘要:
Automated systems and method for processing blood and other fluids are disclosed. The system and methods utilize a disposable fluid circuit (fig. 1) mounted on a re-usable hardware component or module (12). The system withdraws blood from a donor or patient (100), separates the blood into two or more components and further processes or treats the separated component.
摘要:
A blood separation system (10) is described. The system comprises a device (14, 18) which, in use, operates to separate whole blood into red blood cells and plasma, a whole blood inlet line (290) for conveying a flow of whole blood into the device, a plasma collection line (292) for conveying a flow of plasma from the device, and a red blood cell collection line (294) for conveying a flow of red blood cells from the device. A first sensing assembly (334) including a first sensor in the plasma collection line is provided which in use operates to detect a characteristic of plasma in the flow of plasma and to generate a first output. A second sensing assembly (336) including a second sensor in the red blood cell collection line is provided which in use operates to detect a characteristic of red blood cells in the flow of red blood cells and to generate a second output. A controller (16) operates to control flows in the plasma collection line and the red blood cell collection line based upon the first and second outputs.