MODULAR BLOOD TREATMENT SYSTEMS AND UNITS

The present disclosure relates to blood treatment systems, units, modules, apparatuses, and methods useful for blood circulation, hemodialysis, hemofiltration, hemodiafiltration, apheresis, and the like. Modular systems (1910) are provided that include a first base module (1920) comprising a dock (1828), and a first portable module (1520) configured to dock the first base module (1920) and configured to operate independently of the first base module (1920) in an undocked configuration. The first base module (1920) comprises a base module housing (1922) and a primary dialysate circuit. The first portable module (1520) comprises a first portable module housing (1522), a blood pump mounted in or on the first portable module housing (1522), a first extracorporeal blood circuit tubing set, and a second inter-module connector complementary to the first inter-module connector and configured to connect to the first inter-module connector in the docked configuration, wherein the blood pump is configured to releasably engage the extracorporeal blood circuit tubing set. Methods of using the modular systems are also provided, for example in the preparing for, and the conducting of, blood treatments such as blood circulation, hemodialysis, and hemofiltration, hemodiafiltration. The systems and methods enable the engagement and disengagement of the portable module from the base module to conduct, interrupt, and resume blood treatments without disconnecting the extracorporeal blood circuit tubing set from the vasculature of a patient.