Described are embodiments that include methods and devices for separating components from multi-component fluids. Embodiments may involve use of separation vessels and movement of components into and out of separation vessels through ports. Embodiments may involve the separation of plasma from whole blood. Also described are embodiments that include methods and devices for positioning portions, e.g., loops, of disposables in medical devices. Embodiments may involve use of surfaces for automatically guiding loops to position them into a predetermined position.

A method of collecting mononuclear cells, comprising separating whole blood into plasma and cellular components, combining the cellular components with plasma replacement fluid to form a first mixture, and separating the first mixture into mononuclear cells and at least one component.

A chest drainage system is disclosed, including a flexible tube with an articulable tip and a control assembly. The control assembly is operated by a motor and includes an actuation assembly. The actuation assembly is operatively coupled with the flexible tube and is adapted to articulate the tip.

In one aspect of the invention, a medical fluid pumping system and method of pumping medical fluid are provided. The medical fluid pumping system includes a medical fluid pump chamber. A fluid exchange conduit is fluidly coupled to the medical fluid pump chamber. At least one pump configured to pump medical fluid to and drain medical fluid from a cavity of a patient via a patient line is coupled to the fluid exchange conduit. A pump controller is communicably coupled to the at least one pump. The pump controller is configured to cause the pump to transmit fluid pulses.

Provided is a blood component separation device that can shorten the overall time to collect high-concentration platelet liquid for blood component donation, thereby reducing time to keep a donor for blood drawing. The blood component separation device includes a temporary storage bag (also used as a buffy coat bag) which is also used as a whole blood bag for storing whole blood drawn from the donor. A control means performs whole blood drawing from the donor in parallel with performing at least either of a circulation flow step and an acceleration step, thereby storing the collected whole blood in the temporary storage bag.

An apparatus used in analyzing spent dialysate includes at least a first surface configured to accommodate a dialysate drain bag in a first predetermined position, and at least a second surface configured to accommodate a dialysate analysis device in a second predetermined position, such that when the dialysate drain bag is in the first predetermined position and the dialysate analysis device is in the second predetermined position, a light sensor of the dialysate analysis device is positioned to sense light passing through the dialysate drain bag.

The present disclosure is directed to a medical system for optically detecting at least one blood constituent in a tubing line received in a tubing receptacle apparatus at a blood treatment machine for extracorporeal blood treatment and a corresponding blood treatment machine, the tubing receptacle apparatus having no electrical or electronic components and no electrically conductive shielding in some embodiments. Light guides are used to transmit light into the tubing receptacle apparatus and from the tubing receptacle apparatus.

An optical monitoring system is provided for use with a blood processing system having a yoke that rotates an umbilicus about a rotational axis at a first speed, which causes rotation of an associated centrifuge at a second speed about the rotational axis that is different from the first speed. The system includes a light source configured to illuminate a disposable flow circuit received in the centrifuge and a light detector configured to receive an image of the disposable flow circuit to detect the location of an interface between separated blood compenents within the disposable flow circuit. The monitoring system may be positioned outside of the centrifuge bucket which receives the centrifuge and is configured to be in a fully operational mode for interface detection only when a transparent portion of the centrifuge is visible to the monitoring system.

A tele-care management system for peritoneal dialysis (PD) includes at least a container, a holder, a removable detection device and a mobile device. The container is for placing effluent fluid of peritoneal dialysis. The holder is for placing the container. The removable detection device includes a detection unit, a processor and a communication interface, wherein the processor detects the turbidity and the chrominance of the effluent fluid and performs a quantitative analysis on the effluent fluid, and generates a turbidity prediction value based on the detection result of the detection unit. The processor respectively calculates first and second turbidity values, which correspond to first and second turbidity respectively, for the effluent fluid according to first and second algorithms and selects one from the first and second turbidity values to generate the turbidity prediction value based on a predetermined threshold value sent to a mobile device for further processing.

Detection of fluid conditions in an administration set. A light source is positioned to transmit an infrared light through administration set tubing and any fluid therein. A light sensor senses the infrared light transmitted through the tubing and generates an output signal. A frequency of the output signal is a function of an intensity of the light transmitted through the tubing. A processor receives and determines the frequency of the output signal, and compares the determined frequency to threshold frequency values to determine whether fluid is in the tubing. The processor also monitors the generated output signal to determine if the frequency of the output signal changes over time, and determines whether fluid is flowing in the tubing as a function of the determined change in frequency.