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Hnojewyj

Olexander Hnojewyj, Redwood City, CA US

Patent application numberDescriptionPublished
20110104280Wound treatment systems, devices, and methods using biocompatible synthetic hydrogel compositions - A multi-arm poly(ethylene glycol) (PEG) Succinimidyl Glutarate is mixed with a biocompatible, synthetic, nucleophilic polymer component essentially free of human or bovine albumin and other biological molecules, containing, e.g., a polypeptide moiety having a number of active surface lysines of at least twenty (20) per 5000 M/W, which can also be blended with a multi-arm poly(ethylene glycol) (PEG) Amine. The mixture forms a synthetic hydrogel composition. The synthetic hydrogel composition can be applied by topically spraying the synthetic hydrogel composition onto a targeted wound site to promote wound healing.05-05-2011

Olexander Hnojewyj, Emerald Hills, CA US

Patent application numberDescriptionPublished
20100297235Vascular puncture closure systems, devices, and methods using biocompatible synthetic hydrogel compositions - A hydrogel composition for application to vascular puncture site of an animal to arrest bleeding and promote hemostasis mixes a biocompatible, synthetic, electrophilic polymer component comprising a poly(ethylene glycol) (PEG) Succinimidyl Glutarate having a functionality of four and a molecular weight of about 10,000 g/mole, with a biocompatible, synthetic, nucleophilic polymer component comprising a blend of a poly(ethylene glycol) (PEG) Amine having a functionality of four and a molecular weight of about 10,000 g/mole, and a Poly-L-Lysine hydrobromide having a molecular weight of greater than about 8000 g/mole.11-25-2010

Patent applications by Olexander Hnojewyj, Emerald Hills, CA US

Olexander Hnojewyj, Saratoga, CA US

Patent application numberDescriptionPublished
20080215088Systems, Methods, and compositions for achieving closure of suture sites - Systems and methods employ functional instruments to close incisions and wounds using a suture knot in combination with a biocompatible material composition. The systems and methods are well suited for use, for example, at a vascular puncture site following a vascular access procedure.09-04-2008
20100099779Biocompatible material composition adaptable to diverse therapeutic indications - A kit for forming a biocompatible material provides a protein solution and a polymer solution including a derivative of a hydrophilic polymer with a functionality of at least three. Upon mixing. the protein solution and the polymer solution cross-link to form a non-liquid, three-dimensional network that degrades over time back to a liquid form. The polymer includes a degradation control region selected to achieve a desired degradation period and a cross-linking group selected to achieve a desired cross-linking period. The kit provides instructions for forming a mixture of the protein solution and polymer solution and for applying the mixture. The mixture serves as the foundation for multiple material composition species, each adapted to a specific therapeutic indication.04-22-2010
20100168007Systems and Methods for Applying Cross-Linked Mechanical Barriers - A delivery device applies a biocompatible and biodegradable barrier material to a tissue region, e.g., to seal a vascular puncture site. The material comprises two liquid components, which are pre-packaged in individual dispensers. Upon mixing, the liquid components cross-link to create a barrier matrix. A holder attaches to the delivery device. The holder mutually supports the first and second dispensers while the protein solution and polymer solution are conveyed from the dispensers into a fluid delivery channel. The protein and polymer solutions mix as a result of flow through the channel.07-01-2010
20100173843TISSUE ADHERING COMPOSITIONS - A method mixes a first component, a second component, and a buffer material. The first component includes an electrophilic polymer material comprising poly(ethylene glycol) having a functionality of at least three. The second component includes a nucleophilic material comprising a natural or synthetic protein at a concentration of about 25% or less that, when mixed with the first component within a reaction pH range, cross-links with the first component to form a non-liquid, three-dimensional barrier. The buffer material includes tris-hydroxymethylaminomethane having a pH within the reaction pH range. The method applies the mixture to adhere to a tissue region.07-08-2010

Patent applications by Olexander Hnojewyj, Saratoga, CA US