Modular medical fluid management assemblies, machines and methods

A medical fluid machine comprising:

• a source of pneumatic pressure;
• a purified water line;
• a liquid concentrate line;
• a to-extracorporeal circuit fresh dialysis fluid line;
• a from-extracorporeal circuit used dialysis fluid line;
• a drain line;
• and
• a medical fluid management assembly including
• a pneumatic manifold in pneumatic communication with the source of pneumatic pressure, the pneumatic manifold including a plurality of pneumatic passageways and a plurality of pneumatic connectors,
• a pump and valve engine including a plurality of valve chambers and at least one pump chamber, the pump and valve engine including a plurality of pneumatic connectors mated sealingly and releaseably with the pneumatic connectors of the pneumatic manifold, the pump and valve engine further including a plurality of fluid connectors, and
• a fluid manifold including a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the fluid connectors of the pump and valve engine, the fluid manifold in fluid communication with at least one of the purified water line, the liquid concentrate line, the to- extracorporeal circuit fresh dialysis fluid line, the from-extracorporeal circuit used dialysis fluid line, or the drain line.

A medical fluid machine comprising:

• a first medical fluid management assembly located at a first portion of the machine, the first medical fluid management assembly including
• a first pneumatic manifold including a plurality of pneumatic passageways and a plurality of pneumatic connectors,
• a first pump and valve engine including a plurality of valve chambers and at least one pump chamber, the first pump and valve engine including a plurality of pneumatic connectors mated sealingly and releaseably with the pneumatic connectors of the first pneumatic manifold, the first pump and valve engine further including a plurality of fluid connectors, and
• a first fluid manifold including a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the fluid connectors of the first pump and valve engine;
• and
• a second medical fluid management assembly located at a second portion of the machine, the second medical fluid management assembly including
• a second pneumatic manifold including a plurality of pneumatic passageways and a plurality of pneumatic connectors,
• a second pump and valve engine including a plurality of valve chambers and at least one pump chamber, the second pump and valve engine including a plurality of pneumatic connectors mated sealingly and releaseably with the pneumatic connectors of the second pneumatic manifold, the second pump and valve engine further including a plurality of fluid connectors, and
• a second fluid manifold including a plurality of fluid pathways and a plurality of fluid connectors mated sealingly and releaseably with the fluid connectors of the second pump and valve engine.