An extracorporeal blood circulation device is provided with: a blood component adjuster; a blood purification device; a pipe system provided with a pump for supplying blood from a blood collecting part to the blood component adjuster, a valve for supplying a physiological saline solution, and a pressure gauge for sensing a pressure loss; a bypass pipe system for bypassing the blood component adjuster and supplying blood to the blood purification device; a pipe system for connecting the blood component adjuster and the blood purification device, the pipe system being provided with a pressure gauge for sensing a pressure loss; a pipe system provided with a valve for returning blood from the blood purification device to a reinfusion part and recovering the physiological saline solution, and a pressure gauge for sensing a pressure loss; and a control unit for switching to the bypass pipe system and switching to a reinfusion mode.

Embodiments of the disclosure provide a method for evaluating dialyzers used in different medical applications (e.g., hemodialysis). Red blood cell volume lost in a dialyzer is monitored by obtaining blood flowrate measurements and hematocrit measurements at input ports and output ports of the dialyzer. The flowrate and hematocrit measurements are used to determine an accumulation of red cell blood volume in the dialyzer. The measurements may be obtained in a lab environment with an in-vitro blood source or may be obtained in a clinical setting with an in-vivo blood source from a patient.

A waste collection unit for collecting waste material. First and second waste containers are supported on a portable cart. A control panel is configured to receive one or more inputs of selectively set vacuum levels in the first and/or second waste containers. A control system controls operation of vacuum regulators based on the input(s) to regulate levels of vacuums being drawn in each of the waste containers. Pressure sensors in communication with the control system may be positioned to monitor pressure in the waste containers. A back up port support on the portable cart may be provided to receive a vacuum line for coupling a vacuum manifold to a remote vacuum source not located on the portable cart. Container lamps may be coupled to the first and/or second waste containers and configured to illuminate the waste material within the waste containers to be viewed through transparent windows.

Simple-to-use systems, methods, and devices for priming replacement blood treatment devices, for swapping the blood treatment devices out, for replacing swapped-out blood treatment devices, and other related operations are described. In embodiments, a blood treatment device can be primed while a therapy is still running. When the replacement blood treatment device is needed, the therapy can be stopped momentarily (less than a minute) for the rapid and safe swap of the blood treatment device. Blood loss can be minimized. The down time from therapy can be minimized.

A surgical evacuation system having dual in-series large and small droplet filters is provided. The surgical evacuation system comprises a pump, a motor operably coupled to the pump, and a flow path fluidically coupled to the pump. the flow path comprises a first fluid filter configured to extract a large droplet in a fluid moving through the flow path and a second fluid filter configured to extract a small droplet in the fluid moving through the flow path. the first fluid filter is coupled in series with the second fluid filter. The first fluid filter is positioned upstream of the second fluid filter. An outlet port of the second fluid filter is coupled to an inlet port of a non-fluid filter.

Systems and methods for monitoring oxygenator performance in extracorporeal circuit systems or the like. More particularly, the disclosure relates to systems and methods including a controller programmed to determine oxygenator apparatus flow impedance as a function of an inlet pressure measurement, an outlet pressure measurement and a blood flow rate measurement. The systems and methods may include a communication device that receives signals from the controller to communicate information regarding oxygenator apparatus performance.

Simple-to-use systems, methods, and devices for priming replacement blood treatment devices, for swapping the blood treatment devices out, for replacing swapped-out blood treatment devices, and other related operations are described. In embodiments, a blood treatment device can be primed while a therapy is still running. When the replacement blood treatment device is needed, the therapy can be stopped momentarily (less than a minute) for the rapid and safe swap of the blood treatment device. Blood loss can be minimized. The down time from therapy can be minimized.

The disclosure relates to a blood treatment device for use in blood treatment therapies, comprising: an extracorporeal blood circuit, a dialyzer and a dialysis fluid circuit, wherein the extracorporeal blood circuit and the dialysis fluid circuit are separated from each other via a membrane provided in the dialyzer, via which blood can be filtered; at least one substitution solution pump, which is configured to supply a substitution solution to the extracorporeal blood circuit before and/or after the dialyzer; an effluent pressure sensor, which is configured to measure a pressure in the dialysis fluid circuit after the dialyzer, and a control unit, which is configured to automatically reduce a flow rate of the at least one substitution solution pump when an effluent pressure measured by the effluent pressure sensor drops during an ongoing blood treatment therapy.

A surgical evacuation system for communication between a smoke evacuation device and a filter device through a communication circuit is provided. The surgical evacuation system can include a smoke evacuation device, which can include a pump and a motor operably coupled to the pump. The surgical evacuation system also can include a communication circuit and a filter device in communication with the smoke evacuation device through the communication circuit. The filter device can include a plurality of filter components including filter elements and filter sensors. The filter elements can include a fluid filter, particulate filter, and/or a charcoal filter. The communication circuit is configured to authenticate the filter components, verify a remaining life of at least one of the filter components, update parameters output from the filter components, and record errors output from the filter components.

Architectures for production of nitric oxide (NO) include systems and methods for generating NO having one or more plasma chambers configured to ionize a reactant gas to generate a plasma for producing a product gas containing NO using a flow of the reactant gas through one or more plasma chambers; a controller configured to regulate the amount of nitric oxide in the product gas using one or more parameters as an input to the controller, one or more parameters including information from a plurality of sensors configured to collect information relating to at least one of the reactant gas, the product gas, and a medical gas into which product gas flows; and a flow divider configured to divide a product gas flow from the plasma chamber into a first product gas flow to provide a variable flow to a patient inspiratory flow and a second product gas flow.