The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying macromolecule. The extracorporeal blood circuits have an antithrombogenic surface and can be used in hemofiltration, hemodialysis, hemodiafiltration, hemoconcentration, blood oxygenation, and related uses.

The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying macromolecule. The extracorporeal blood circuits have an antithrombogenic surface and can be used in hemofiltration, hemodialysis, hemodiafiltration, hemoconcentration, blood oxygenation, and related uses.

The present invention provides a medical material and a blood purification apparatus each having high anti-thrombotic properties and high safety. The apparatus is produced by incorporating therein a medical material which has a hydrophilic copolymerization polymer present on a surface thereof which is to be in contact with blood, wherein particulate protuberances each having a particle diameter of 50 nm or more are present on the surface which is to be in contact with blood at a density of 3 particles/?m.sup.2 or less and the relaxation time of adsorbed water in the hydrophilic copolymerization polymer is 2.5?10.sup.?8 seconds or shorter and 5.0?10.sup.?10 seconds or longer at ?40? C.

Disclosed is a high anticoagulation ECMO and extracorporeal circulation consumable, which include the following preparation methods: S1, aminating the surface of ECMO blood circulation device and extracorporeal circulation consumables; S2, activating heparin groups; S3, heparinizing the ECMO blood circulation device and extracorporeal circulation consumables; S4, modification of enhancer. The application can produce a novel high anticoagulation extracorporeal circulation tube with low price and high biocompatibility, which expands the application in clinic.

The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying macromolecule. The extracorporeal blood circuits have an antithrombogenic surface and can be used in hemofiltration, hemodialysis, hemodiafiltration, hemoconcentration, blood oxygenation, and related uses.

The present disclosure relates to a membrane prepared from a blend comprising i) a polysulfone, polyether sulf one or polyarylethersulfone and ii) polyvinylpyrrolidone, characterized in that the membrane is coated with polydopamine and chon-droitin. Optionally the coating further comprises heparin. The disclosure further relates to a process for producing the coated membrane, a method of increasing the selectivity of a membrane, and to a filtration/diffusion device comprising the membrane which can be used, for example, in hemodialysis applications.

An intravenous delivery system may have a plurality of components with interior surfaces that cooperate to define a fluid pathway through which fluid flows into a body of a patient. One or more anticoagulant coatings may reside on one or more of the interior surfaces to restrict blood clot formation in the fluid pathway. Manufacture of the intravenous delivery system may commence with provision of the components and preparation of an anticoagulant solution. The one or more interior surfaces may be exposed to the anticoagulant solution to form the anticoagulant coating. The anticoagulant coating may be caused to adhere to the one or more interior surfaces. The anticoagulant solution may be prepared by dissolving a triblock copolymer, such as PEO-PPO-PEO or PEO-PBD-PEO, in water. Irradiation may be applied to the anticoagulant coatings and interior surfaces to form covalent bonds.

Devices, systems, and methods for medication infusion are described herein. In some embodiments, a system includes a patient access subassembly, a first fluid reservoir, a second fluid reservoir, and an assembly. The assembly can have a first configuration in which the patient access subassembly is in fluid communication with the first fluid reservoir via a first tube, a second configuration in which the first fluid reservoir is in fluid communication with the second fluid reservoir, and a third configuration in which the first fluid reservoir is in fluid communication with the patient access subassembly via a second tube, the first fluid reservoir fluidically isolated from the first tube in the third configuration.

Provided herein is a percutaneous expandable venous cannula device, and related methods. The device is easily inserted, for example, using standard Seldinger technique via the right internal jugular. The device includes multiple, multi-holed limbs that softly fill, e.g., the right atrium to facilitate complete drainage, enable retraction of the chamber in surgery, and mitigate suction occlusion, filling the entire atrium and allowing for efficient and rapid emptying of the chamber. In aspects, the device facilitates minimally-invasive aortic or mitral valve surgery with single placement via the right internal jugular as the sole cannula needed for full support.

Devices, systems, and methods for medication infusion are described herein. In some embodiments, a system includes a patient access subassembly, a first fluid reservoir, a second fluid reservoir, and an assembly. The assembly can have a first configuration in which the patient access subassembly is in fluid communication with the first fluid reservoir via a first tube, a second configuration in which the first fluid reservoir is in fluid communication with the second fluid reservoir, and a third configuration in which the first fluid reservoir is in fluid communication with the patient access subassembly via a second tube, the first fluid reservoir fluidically isolated from the first tube in the third configuration.