Modular medical fluid management assemblies, machines and methods
Inventors
Assignees
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Publication Number
US-12329891-B2
Publication Date
2025-06-17
Expiration Date
Abstract
A medical fluid management assembly includes a pneumatic manifold, a pump engine, a valve engine, and a fluid manifold. The pneumatic manifold includes a plurality of pneumatic passageways and a plurality of pneumatic connectors. The pump engine includes a pump chamber and the valve engine includes a valve chamber. Each of the pump engine and valve engine includes a pneumatic connector mated sealingly and releaseably with one of the pneumatic connectors of the pneumatic manifold. Additionally, each of the pump engine and valve engine includes a fluid connector. The fluid manifold includes a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the fluid connectors of the pump engine and the valve engine.
Core Innovation
The invention provides a medical fluid management assembly that uses a pneumatic manifold in pneumatic communication with a source of pneumatic pressure. The pneumatic manifold includes a plurality of pneumatic passageways and a plurality of pneumatic connectors, and a valve engine is provided with a valve chamber and a first pneumatic connector mated sealingly and releaseably with one pneumatic connector of the pneumatic manifold, together with a valve fluid connector.
A pump engine is provided with a pump chamber, and the pump engine includes a second pneumatic connector mated sealingly and releaseably with another pneumatic connector of the pneumatic manifold, together with a pump fluid connector. A fluid manifold is provided with a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the respective fluid connectors of the valve engine and the pump engine.
The fluid manifold is fluidly coupled to at least one of a purified water line, a liquid concentrate line, a to-extracorporeal circuit fresh dialysis fluid line, a drain line, or a from-extracorporeal circuit used dialysis fluid line. In a further variant, the assembly includes multiple valve engines, and a pump engine includes a balance chamber, while the fluid manifold routes medical fluids to and from the first valve engine, the second valve engine, and the pump engine.
Claims Coverage
The partial content includes two independent claims. Across these independent claims, the inventive coverage is centered on a modular architecture with a pneumatic manifold that pneumatically drives one or more engine modules, and a fluid manifold that sealingly and releaseably couples to specified dialysis-related fluid lines via the engine-specific fluid connectors.
Pneumatic manifold driving a valve engine and a pump engine with sealingly and releaseably mated pneumatic connectors
A medical fluid management assembly comprising a pneumatic manifold in pneumatic communication with a source of pneumatic pressure, the pneumatic manifold including a plurality of pneumatic passageways and a plurality of pneumatic connectors; a valve engine including a valve chamber, the valve engine including a first pneumatic connector mated sealingly and releaseably with one of the pneumatic connectors of the pneumatic manifold, the valve engine further including a valve fluid connector; and a pump engine including a pump chamber, the pump engine including a second pneumatic connector mated sealingly and releaseably with another one of the pneumatic connectors of the pneumatic manifold, the pump engine further including a pump fluid connector.
Fluid manifold with fluid pathways and sealingly and releaseably mated fluid connectors coupled to dialysis-related fluid lines
A medical fluid management assembly further including a fluid manifold including a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the respective fluid connectors of the valve engine and the pump engine, the fluid manifold being fluidly coupled to at least one of a purified water line, a liquid concentrate line, a to-extracorporeal circuit fresh dialysis fluid line, a drain line, or a from-extracorporeal circuit used dialysis fluid line.
Multiple valve engines driven by the pneumatic manifold and a pump engine with a balance chamber
A medical fluid management assembly comprising a pneumatic manifold in pneumatic communication with a source of pneumatic pressure, the pneumatic manifold including a plurality of pneumatic passageways and a plurality of pneumatic connectors; a first valve engine including a first valve chamber, the first valve engine including a first pneumatic connector mated sealingly and releaseably with one of the pneumatic connectors of the pneumatic manifold, the first valve engine further including a first valve fluid connector; a second valve engine including a second valve chamber, the second valve engine including a second pneumatic connector mated sealingly and releaseably with another one of the pneumatic connectors of the pneumatic manifold, the second valve engine further including a second valve fluid connector; and a pump engine including a balance chamber, the pump engine including a third pneumatic connector mated sealingly and releaseably with another one of the pneumatic connectors of the pneumatic manifold, the pump engine further including a pump fluid connector.
Fluid manifold coupling to multiple engines and dialysis-related fluid lines
A medical fluid management assembly further including a fluid manifold including a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the respective fluid connectors of the first valve engine, the second valve engine, and the pump engine, the fluid manifold being fluidly coupled to at least one of a purified water line, a liquid concentrate line, a to-extracorporeal circuit fresh dialysis fluid line, a drain line, or a from-extracorporeal circuit used dialysis fluid line.
Overall, the independent claims cover pneumatically driven, sealingly and releaseably connected engine modules using a pneumatic manifold with pneumatic passageways and connectors, and a fluid manifold with sealingly and releaseably mated fluid connectors that couples to purified water, liquid concentrate, fresh dialysis fluid, drain, and/or used dialysis fluid lines. The second independent claim expands the engine set to include first and second valve engines together with a pump engine that includes a balance chamber.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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