摘要:
Methods and apparatus particularly involving the separation of blood into blood components and the collection of such components are disclosed. In one aspect, an extra-corporeal method for the collection of plasma and red blood cells is provided, wherein the collection of plasma and red blood cells may occur simultaneously or subsequently utilizing the same dual stage blood processing vessel. The flow of blood to the blood processing vessel and return of uncollected blood components may be provided via a single needle, wherein blood is removed from and returned to a donor/patient during alternating blood removal and blood return submodes. Platelet separation and collection options are also described. In either case, prior to red blood cell collection, a set-up phase may be carried out to set a predetermined hematocrit and AC ratio. Replacement fluid delivery may optionally also be provided either substantially continuously during any collection phase(s) and/or in a bolus mode.
摘要:
A water supply sub-system for connection to a main water supply system includes a storage tank having an inlet with a flow control valve for connection to the main water supply system. The sub-system may be disconnected from the main system and configured as a closed system for disinfecting the sub-system. An outlet line connects the storage tank to a pump that pumps water from the tank to a sub-system supply line. One or more branch connections may connect the sub-system supply line to high-demand water using devices, such as dialysis machines. The supply line may be a feedback loop. A shunt feedback loop parallel to the feedback loop of the supply line has a pressure control valve that regulates pressure in the supply line feedback loop. A filtration device may also be included to ensure the purity of the water circulating through the sub-system.
摘要:
The claimed invention refers to a centrifuge intended for processing blood and blood components and with its function based on the effective utilisation of ring type blood processing bags with associated secondary bags and other accessories. The most outstanding feature of the centrifuge, in accordance with the claimed invention, is that its rotor, at the same intended height of the ring bag (22) inner periphery, shows at least three supports (9-11) arranged along this periphery and intended to locate the ring bag's inner strengthened periphery edge on guide holes at the same time as the centrifuge and its rotor is equipped with a joint rotating inner lid (6) which includes a clamp function (7) that clamps ring bag (22) securely along and between supports (9-11). Furthermore, in the invention these supports (9-11) have, on the one hand, built-in valve functions for communication between the ring bag and the respective secondary bags can be actively controlled and, on the other hand, sterile welding functions for communication between ring bag (22) and the respective secondary bags when interruption and blocking is required.
摘要:
A Centrifuge for the separation and/or treatment of cells in a substantially annular or partially annular separation bag having a rotor with rotor shaft with a hollow upper portion defining a central compartment and a rotor bowl for the separation bag and a container system including the separation bag for use therewith.
摘要:
A method and apparatus for producing blood component products. In one embodiment, a plurality of a predetermined type of blood component is harvested from a source of whole blood. At least two on-line yield determination techniques are utilized to determine the yield for the harvested blood components. One is a predetermined yield prediction technique and the second is a predetermined yield monitoring technique, each of which are individually calibrated in relation to a predetermined off-line yield determination technique. The predetermined yield prediction and monitoring techniques each provide the yield for the harvested blood components and each is then utilized to provide a determined yield. Consequently, when the harvested blood components are packaged the determined yield my be associated therewith, thereby providing a blood component product.
摘要:
The present invention relates to a method and/or apparatus suitable for use in reduction of any pathogens in a fluid such as a biological fluid, or a fraction or component thereof, which may contain pathogens. The device may include a vessel having an inlet and an outlet and a passage which extends therebetween. The passage may have a wall which is substantially transparent to a pathogen reduction radiation. The passage contains a static mixer system which is formed and arranged for thoroughly mixing the fluid in use of the device so as to bring substantially the whole of the fluid into an irradiation zone extending along and in substantially direct proximity to the passage walls during passage between the inlet and the outlet to be expose the fluid to a similar substantial level of irradiation. The static mixer may include light transmissive blades.
摘要:
An extracorporeal blood processing system is disclosed which includes a variety of novel components and which may be operated in accordance with a variety of novel methodologies. For instance, the system includes a graphical operator interface which directs the operator through various aspects of the apheresis procedure. Moreover, the system also includes a variety of features relating to loading a blood processing vessel into a blood processing channel and removing the same after completion of the procedure. Furthermore, the system also includes a variety of features relating to utilizing a blood priming of at least portions of the apheresis system in preparation for the procedure. In addition, the system includes a variety of features enhancing the performance of the apheresis system, including the interrelationship between the blood processing vessel and the blood processing vessel and the utilization of high packing factors for the procedure.
摘要:
A water supply sub-system for connection to a main water supply system, in which the sub-system includes: a storage tank having an inlet for connection to the main water supply system, an outlet and an outlet line connecting the outlet of the storage tank to a pump which pumps water from the tank to a sub-system supply line. One or more branch connections are connected to the sub-system supply line. Connectable to the one or more branch connections are one or more high-demand water using devices, such as dialyzer re-use machines. The subsystem may feed water to these high demand devices, and the sub-system and the one or more high demand devices may thus be substantially isolated from the main water supply system so that the high demands thereof will not adversely impact the water supply parameters. Thus, one or more lower demand machines, such as dialysis machines, may be connected to the main line without supply parameter disruption thereto. The sub-system preferably further includes a feedback loop and the storage tank preferably has a spray head disposed therein, the spray head being disposed to spray inlet and/or recirculated feed back water into said storage tank. Among other alternative options, an ultrafiltration device may also be included in the sub-system supply line to ensure the purity of the water circulating through the sub-system.
摘要:
A centrifugal separation device for use in a fluid separation system to centrifugally separate a composite fluid into the composite components thereof. This centrifugal separation device includes a centrifugal rotor housing and a rotor which is disposed in a freely rotatable disposition within the housing, the rotor having a fluid receiving area and several fluid flow channels defined therein. A composite fluid to be separated is delivered to the fluid receiving area from which it travels through a radial fluid transport channel to a circumferential fluid separation channel where it is subjected to substantial centrifugal forces which separate the composite fluid into components which each then travel to distinct first and second separated fluid outlet channels. The separated fluids then exit from these outlet channels and are then moved from the separation device to a collection bag for storage or may then be returned to the donor. The first and second fluid outlet channels also have respective first and second lengths which are related to each other so as to provide a substantial hydraulic pressure balance for the respective separated fluids flowing therethrough. Such a pressure balance controls the interface of the separated fluid components within the circumferential separation channel. The preferred relationship of the respective first and second lengths of said first and second separated fluid outlet channels to each other which provides the hydraulic balance is null3gh3nullnull3gh3 wherein the first length of the first outlet channel is h3, and the second length of the second outlet channel is h3, wherein g is a gravitational acceleration value and null3 represents the density of the fluids in the first outlet channel and null3 represents the density of the fluids in the second outlet channel. The preferred centrifugal drive motor used here produces a rotating magnetic field, which co-acts with a magnetically reactive material disposed in the rotor to rotate the rotor with the rotating magnetic field. A loopless, sealless continuous flow centrifuge is thus useful herein.
摘要:
A method and apparatus for use in inactivating pathogens in fluids such as blood or blood components. The apparatus includes a container having a main body portion, a plurality of openings into the main body portion of the container, and at least one weld which partially surrounds at least one opening into the main body portion of the container. The method includes flowing fluid into the container via at least one of the plurality of openings and sealing at least one opening closed by extending the partially surrounding weld so that it completely surrounds the opening.