Embodiments herein relate to thromboresistant coatings, coated devices, and related methods. In an embodiment, a thromboresistant implantable, partially implantable, or wearable medical device is included having a substrate, a non-fouling basecoat layer, and a lubricious topcoat layer. The non-fouling basecoat layer can include a hydrophilic component and a hydrophobic component. The non-fouling basecoat layer is disposed over the substrate. The lubricious topcoat layer can include a photo-reactive polyvinylpyrrolidone compound and a cross-linking agent. The lubricious topcoat layer can be disposed over the non-fouling basecoat layer. Other embodiments are also included herein.

Medical devices, systems, and methods for treating conditions using antithrombin-heparin conjugates are disclosed. For example, medical devices can be coated with antithrombin-heparin (ATH) resulting in reduced thrombogenicity. Various conditions can likewise be treated with ATH.

Devices, systems, and methods are provided including a structure having one or more surfaces configured for internal use within a patient's body and one or more therapeutic compositions comprising one or more active substances including a direct factor Xa inhibitor, and a direct factor IIa inhibitor disposed in or on the structure. The structure is configured to be positioned adjacent an injury site in the patient's body. The one or more active substances optionally include an anti-proliferative agent. The therapeutic composition is formulated to release the one or more active substances to the injury site to provide one or more of inhibit clot formation, promote clot dissolution, inhibit or dissolute inflammation, inhibit vessel injury, increase time before clotting, and/or inhibit cell proliferation.

Antimicrobial and antithrombogenic polymer or polymeric blend, compounds, coatings, and materials containing the same, as well as articles made with, or coated with the same, and methods of making the same exhibiting improved antimicrobial properties and reduced platelet adhesion. Embodiments include polymers with antimicrobial and antithrombogenic groups bound to a single polymer backbone, an antimicrobial polymer blended with an antithrombogenic polymer, and medical devices coated with the antimicrobial and antithrombogenic polymer or polymeric blend.

Intraocular pressure sensors, systems, and methods of use. Implantable intraocular pressure sensing devices that are hermetically sealed and adapted to wirelessly communicate with an external device. The implantable devices can include a hermetically sealed housing, the hermetically sealed housing including therein: an antenna in electrical communication with a rechargeable power source, the rechargeable power source in electrical communication with an ASIC, and the ASIC in electrical communication with a pressure sensor.

Disclosed herein are methods for modifying a substrate having a hydrophobic surface. Also disclosed are modified hydrophobic substrates. The modified hydrophobic substrates and methods disclosed herein advantageously improve cell affinity and antithrombogenicity of hydrophobic surfaces.

Artificial heart valve structures and methods of their fabrication are disclosed. The heart valve structures may be fabricated from a biocompatible polymer and include one or more heart valve leaflet structures incorporated within a conduit. The valve structures may incorporate one or more conduit sinuses, as well as a gap between the lower margin of the valve leaflets and the interior of the conduit. In addition, the valve structures may include one or more valve sinuses created in a space between the valve leaflets and the conduit inner surface. Computational fluid dynamics and mechanical modeling may be used to design the valve leaflets with optimal characteristics. A heart valve structure may also incorporate a biodegradable component to which cells may adhere. The incorporated cells may arise from patient cells migrating to the biodegradable component, or the component may be pre-seeded with cells prior to implantation in a patient.

The present invention provides a valve material having a long-acting antithrombosis property and a preparation method therefor. The preparation method therefor comprises the following steps: performing glutaraldehyde cross-linking treatment on an animal-derived biological valve material, so that the valve material can resist decomposition for a long time; soaking the treated valve material in a formulation solution containing a cross-linking agent and a modifier for 10-60 min, then increasing the temperature to 30-60° C., and performing heat treatment for 1-12 h; and rinsing the valve material after heat treatment, so as to obtain the valve material. The valve material prepared by the method has excellent antithrombosis and anti-calcification properties, and can effectively solve the problem of calcification and thrombosis in the valve material treated by existing means of glutaraldehyde cross-linking. The valve material prepared by the present method can be used as a valve material required for aortic valve, pulmonary valve, venous valve, mitral valve and tricuspid valve replacement.

The invention relates to self-cleaning porous structures, e.g., layers or coatings, fabricated within, applied to, or deposited on a blood contacting surface of a medical device, to prevent activation and aggregation of platelets thereon. In certain embodiments, the layer or coating is composed of multi-layered fibers. The porous structure is applied to or deposited such as to form a permeable wall on the blood contacting surface. The blood travels into the wall and subsequently back out (reversing back into the lumen) during a cardiac cycle. Reversal flow is controlled during the diastole phase such that the backward flow repels the platelets and prevents their activation and aggregation and therefore, minimizes thrombus formation.

Disclosed herein implantable material and methods for treatment of growth plate injuries and other purposes. These materials can be particularly useful for treating children whose growth plates are active, and can help encourage proper healing and inhibit unwanted bone formations. Exemplary compositions can comprise poly (ethylene glycol) (“PEG”), gelatin (“GEL”), and heparin (“HEP”). The PEG, GEL, and HEP components can be present in various forms of these materials, such as methacrylated forms, etc. The implanted materials can be anti-osteogenic and/or ant-mineralization, and can help prevent unwanted bone growth in the implanted area, such as boney tethers, which can inhibit desirable growth plate healing and overall bone growth.