A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, including a breathable air outlet, an outside air inlet, and an pneumatic block module, wherein the pneumatic block module includes: a volute assembly including an inlet air passage, a mount for a blower and an outlet air passage; the blower being mounted in the mount such that an impeller of the blower is in a flow passage connecting the inlet air passage and the outlet air passage; a casing enclosing the volute assembly, wherein air passages within the casing connect air ports on the volute assembly, wherein the inlet air passage of the volute assembly is in fluid communication with the outside air inlet and the outlet air passage of the volute assembly is in fluid communication with the air outlet.

A peristaltic infusion pump with improved low flow performance. The pump includes a cam shaft having cams offset in an axial direction, pump fingers that engage a tube, each finger coupled to a respective cam, the fingers creating a pumping region and an occlusion region within the tube, a motor coupled to the cam shaft, a memory, and a controller. The controller implements cam rotation instructions received from the memory to cause the pump to position the fingers in the occlusion region prior to beginning an infusion therapy to deliver fluid to patient through the tube at a patient fluid delivery rate, rotate the cam shaft to transition the fingers from the occlusion region to the pumping region at a startup rate that is faster than a patient fluid delivery rate, and rotate the cam shaft at the patient fluid delivery rate in the pumping region.

A treatment device system includes a treatment machine for performing a therapy on a patient, the treatment machine including at least one fluid conveyor and a controller, the controller having a first memory, to cause the at least one fluid conveyor to produce a therapeutic fluid by mixing purified water and at least one concentrate. The system also includes and a water purifier in fluid communication with and providing the purified water to the treatment machine. A wired or wireless control line provides two way communication between the controller of the treatment machine and the internal central controller of the water purifier, wherein the controller of the treatment machine transmits data via the control line to the internal central controller of the water purifier for control of the water purifier, the data provided based on at least one of the operator inputs received via the user interface.

A peritoneal dialysis system includes first and second concentrate sources in selective fluid communication with a medical fluid pumping cassette, the first and second concentrate sources holding first and second peritoneal dialysis concentrates, respectively; a pump actuator configured to cause the medical fluid pumping cassette to pump the first and second concentrates; and a processor and memory configured to (i) determine a cumulative volume of at least one of the first or second peritoneal dialysis concentrates pumped from the medical fluid pumping cassette by the pump actuator, (ii) compare the cumulative volume to a threshold, and (iii) if the cumulative volume is outside of the threshold, modify a subsequent stroke volume of at least one of the first or second pump chambers actuated by the pump actuator in an attempt to cause an updated cumulative volume for the at least one peritoneal dialysis concentrate to be within the threshold.

A vaporizing assembly for an aerosol-generating system may comprise a delivery device and a heater assembly. The heater assembly may comprise a heat resistive substrate and a heating element. The delivery device is configured to deliver an aerosol-forming substrate to at least a surface of the heat resistive substrate, wherein the heating element is isolated or separated from the aerosol-forming substrate by the heat resistive substrate. The present disclosure is also directed to a method for generating an aerosol.

A dialysis machine (e.g., a peritoneal dialysis (PD) machine) can include a control unit configured to operate in a hybrid automated mode during a PD treatment. A processor in the control unit is configured to engage a pump during a fill phase of the PD cycle. The volume of fluid (e.g., dialysate) transferred to a patient line during the fill phase is monitored. After a dwell period, the pump is disengaged at the start of a drain phase of the PD cycle. Disengaging the pump can include: configuring valves of a disposable cassette to bypass the pump chambers of a disposable cassette; activating a bypass valve to shunt the patient line to a drain line; or moving a roller assembly of a peristaltic pump. The fluid transferred from the patient line to the drain line is monitored during the drain phase of the PD cycle.

An additive manifold includes a valve side including a plurality of valve mounts; and a tube fitting side including a plurality of integrally formed tube fittings. The additive manifold includes at least one passageway formed between the valve side and the tube fitting side, the at least one passageway allowing fluid communication between the valve mounts and the tube fittings.

An aerosol delivery device may include a rechargeable power source configured to provide power to generate an aerosol, device electronics configured to generate the aerosol responsive to application of the power from the power source, and an authentication module. The authentication module may include a separate chip or circuit board relative to the device electronics. The authentication module may be inserted into the aerosol delivery device between the power source and the device electronics to control provision of the power to the device electronics for generation of the aerosol or between the power source and a charge port of the aerosol delivery device to control charging of the power source.

The invention relates to a membrane pump device 2 for conveying fluids, in particular medical liquids for blood treatment. The invention furthermore relates to a membrane pump with a membrane pump device 2 and an actuating device 1 for the membrane pump device 2. The membrane pump device 2 has a pump chamber body 253 in which a recess, which is closed by an elastic membrane 201 to form a pump chamber 252, is constructed. The membrane pump device 2 moreover comprises an inward flow path 219 which connects an entry connection 204 to an inlet opening 215 of the pump chamber 252, and an outward flow path 223 which connects an outlet opening 216 of the pump chamber 252 to an exit connection 205. An inlet valve 202 is provided in the inward flow path 219 and an outlet valve 203 is provided in the outward flow path 223. The outlet valve 203 is a membrane valve which has a valve body 254A in which a recess is constructed which is closed by an elastic membrane 201 to form a valve chamber 218 in which a valve seat 225 is arranged, the front face of which faces the membrane and in the open position of the outlet valve is arranged at a distance from the valve seat, wherein a valve channel 240 passes through the valve seat. The outward flow path 223 comprises a first outward flow channel 214 which connects the outlet opening 216 of the pump chamber 252 to the outlet valve chamber 218, and a second outward flow channel 214A which connects the outlet valve chamber 240 to the exit connection 205, wherein the cross-section area of the outlet valve channel 240 is smaller than the cross-section area of the region of the valve chamber 218 surrounding the outlet valve seat 225.

A microvaporizer (10) including a cartridge (14), a flat plate heater (16) and a base (12). The cartridge (14) includes a mouth piece (40) configured to deliver an aerosol to the user's airways. The cartridge (14) also includes a hollow main body (42) with a recessed wall (60) to receive the flat plate heater (16).