A blood separation system is provided that includes a blood separation device that includes a centrifugal separator and a spinning membrane separator drive unit incorporated into a common case and a fluid flow circuit having both a separation chamber configured to be mounted in the centrifugal separator of the blood separation device and a spinning membrane separator configured to be received in the spinning membrane separator drive unit. In an exemplary procedure, the system is used to collect concentrated platelets and/or concentrated platelets and plasma, and to further permit harvesting of the mononuclear cells from the centrifugal separator at the conclusion of platelet collection, and transfer of the mononuclear cells to the spinning membrane separator.

A biological component cassette includes a cassette main body having a flow path for the liquid in an interior of the cassette main body. The cassette main body is flexible and has a sheet-like shape. The biological component cassette includes a frame that is less flexible than the cassette main body. The frame includes an accommodation chamber in which the cassette main body is accommodated. A side portion of the frame forms at least part of the accommodation chamber. When the cassette main body is accommodated in the accommodation chamber, one surface of the cassette main body is covered by a bottom portion of the accommodation chamber, and another surface of the cassette main body is exposed to an external environment.

An extracorporeal photopheresis system includes a separator with a disposable fluid circuit including a treatment container, an irradiation device configured to treat the contents of the treatment container, and a controller configured to control the system to perform a procedure including drawing anticoagulated whole blood into the fluid circuit from a blood source and returning to the blood source a treated target cell component, a portion of a red blood cell component remaining in the fluid circuit, and/or a portion of a plasma component remaining in the fluid circuit. The controller is further configured to estimate an end-of-procedure fluid balance estimated based on manual or automatic inputs including a patient body weight associated with the blood source and a total blood volume of the blood source, indicate the fluid balance to an operator, and receive one or more changes that affect the fluid balance after indicating the fluid balance.

A pump cassette is disclosed. The pump cassette includes a housing having at least one fluid inlet line and at least one fluid outlet line. The cassette also includes at least one reciprocating pressure displacement membrane pump within the housing. The pressure pump pumps a fluid from the fluid inlet line to the fluid outlet line. A hollow spike is also included on the housing as well as at least one metering pump. The metering pump is fluidly connected to the hollow spike on the housing and to a metering pump fluid line. The metering pump fluid line is fluidly connected to the fluid outlet line.

A fluid separation device includes a centrifuge in which a fluid is separated into at least two components, with an interface therebetween. At least a portion of one of the separated fluid components is removed from the centrifuge and flows through a vessel. Light is reflected off of the separated fluid component in the vessel and received and analyzed to determine its main wavelength. If the main wavelength is higher than a maximum value, a target location of the interface is changed. If the main wavelength is less than the maximum value, then the location of the interface is compared to the target location. When the interface is sufficiently close to the target location, the optical density of the separated fluid component in the vessel is compared to a minimum value. If the optical density is less than the minimum value, the target location of the interface is changed.

This disclosure relates to dialysis systems and methods. In some implementations, a dialysis system includes a dialysis machine with a fluid line and a drain line, a blood line set configured to be connected to the dialysis machine, and a drain apparatus coupled to the dialysis machine. The drain apparatus includes a chamber configured to receive an end of a patient line of the blood line set, an inlet line, an outlet line, and a valve. The inlet line has a first end configured to be coupled to the chamber and a second end configured to be coupled to the fluid line of the dialysis machine. The outlet line has a first end configured to be coupled to the chamber and a second end configured to be coupled to the drain line of the dialysis machine. The valve is configured to control flow of fluid through the outlet line.

Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.

This invention is directed to system and methods for the oxygenation of the blood of a patient, comprising an extracorporeal blood circulation path adapted to be coupled to the patient's vascular system, and comprising apparatus for oxygenating blood flowing therein and withdrawing CO2 therefrom, wherein the flow rate of blood flowing in said extracorporeal blood circulation path does not exceed 2/5 of the patient's blood flow. The extracorporeal blood circulation path preferably comprise a cartridge including an oxygenator and at least one cannula.

In one aspect, a medical device includes: a housing; a plurality of attachment points disposed on a face of the housing and configured to hold a medical fluid tubing system; a lighting system disposed at or below the face of the housing; and a processor configured to control the lighting system to (a) visually indicate the locations of the attachment points and (b) in response to a feedback signal indicating whether or not the medical fluid tubing system is attached to at least one of the attachment points, alter the visual indication of the lighting system.

A dialysis fluid system includes a dialysis fluid inlet; a dialysis fluid outlet; a pump positioned and arranged to pump dialysis fluid through the dialysis fluid inlet and the dialysis fluid outlet; and an inductive heater located between the dialysis fluid inlet and the dialysis fluid outlet, the inductive heater including a fluid flowpath positioned and arranged to receive non-heated dialysis fluid from the dialysis fluid inlet and to output heated dialysis fluid to the a dialysis fluid outlet, a conductive heater element located within the fluid flowpath so as to be or act as a secondary coil of a transformer, and a primary coil of the transformer located outside of the fluid flowpath and positioned so as to magnetically induce a current into the conductive heater element, causing the conductive heater element and surrounding fluid to heat.