| SurModics, Inc. Patent applications |
| Patent application number | Title | Published |
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| 20120100187 | COATINGS AND METHODS FOR CONTROLLED ELUTION OF HYDROPHILIC ACTIVE AGENTS - Embodiments of the invention include multi-layer coatings and methods for controlling the elution of hydrophilic active agents. In an embodiment, the invention includes a medical device including a substrate, a primer polymer layer disposed on the substrate, an expandable layer disposed on the primer polymer layer, and a hydrophilic active agent dispersed within the expandable layer. In an embodiment, the invention includes a method of forming a medical device including depositing a primer layer onto a substrate, the primer layer comprising a primer polymer. The method can further include depositing an expandable layer onto the primer layer, the expandable layer including an expandable polymer, and a hydrophilic active agent. The expandable layer can be deposited with a solvent that is effective to solvate both the expandable polymer and the primer polymer. Other embodiments are also included herein. | 04-26-2012 |
| 20120046384 | PHOTOACTIVATABLE CROSSLINKER - Described herein is a degradable linking agent of formula Photo | 02-23-2012 |
| 20120021038 | COATING COMPOSITION - A wound spacer device comprising multiple beads connected by non-absorbable suture material is disclosed. The device can be applied, for example, by a first responder to an injured individual, or can be applied by a trauma treatment facility, such as a Level 2 medical unit. In typical embodiments the device allows for site-specific controlled elution of an antimicrobial agent, such as Tobramycin, including defined elution over a period of time, such as 48 or 72 hours. | 01-26-2012 |
| 20120004339 | REAGENT AND METHOD FOR PROVIDING COATINGS ON SURFACES - A grafting reagent and related method of using the reagent to form a polymeric layer on a support surface, and particularly a porous support surface, in a manner that provides and/or preserves desired properties (such as porosity) of the surface. The reagent and method can be used to provide a thin, conformable, uniform, uncrosslinked coating having desired properties onto the surface of a preformed, and particularly a porous, polymeric substrate. The method includes the steps of a) providing a porous support surface, b) providing a nonpolymeric grafting reagent comprising a photoinitator group, c) providing one or more polymerizable monomers adapted to be contacted with the surface, in the presence of the grafting reagent, and to be polymerized upon activation of the photoinitiator; and d) applying the grafting reagent and monomer(s) to the surface in a manner, and under conditions, suitable to coat the surface with the grafting reagent and to cause the polymerization of monomers to the surface upon activation of the grafting reagent. | 01-05-2012 |
| 20110319473 | COMPOSITIONS AND METHODS FOR ENHANCEMENT OF NUCLEIC ACID DELIVERY - Embodiments of the invention include devices and methods for delivery of nucleic acids as active agents. Embodiments of the invention include devices and methods for delivery of nucleic acids as active agents. In an embodiment, an article for delivering an active agent is included. The article can include a dehydrated complex including a nucleic acid, a transfection agent, and a saccharide protectant. The nucleic acid and transfection agent can form a liposome or a lipoplex. The dehydrated complex can be disposed within a polymeric matrix. The dehydrated complex can be disposed within a microparticle. Other embodiments are also included herein. | 12-29-2011 |
| 20110245367 | DEGRADABLE PHOTO-CROSSLINKER - Described herein is a degradable linking agent of formula Photo | 10-06-2011 |
| 20110236454 | INJECTABLE DRUG DELIVERY FORMULATION - The invention provides an injectable formulation that includes an active agent; a biocompatible solvent system, crosslinkable polymers such as polysaccharides; and crosslinking agents; wherein the formulation is substantially free of water. The invention also provides a drug delivery depot formed from the injectable formulation wherein the polymers crosslink in the presence of water in the body of a patient, or in the air, prior to implantation in the patient. Also provided are methods of treatment using such formulations and drug delivery systems. | 09-29-2011 |
| 20110229457 | INJECTABLE DRUG DELIVERY SYSTEM - The invention provides a formulation that includes a biocompatible solvent system, a biodegradable polymer that is substantially soluble in the biocompatible solvent system, and an active pharmaceutical ingredient that is substantially insoluble in the biocompatible solvent system. The formulation can form a drug-eluting implant, when injected into mammalian tissue. The solvent system and the biodegradable polymer can be selected so that the implant provides extended, delayed, controlled and/or modified release of the active pharmaceutical ingredient, for example, over the course of days, weeks or months. | 09-22-2011 |
| 20110159098 | STABILIZATION AND DELIVERY OF NUCLEIC ACID COMPLEXES - Compositions and methods for delivering nucleic acid, including siRNA, to a target cell are provided. In one embodiment, the composition includes the nucleic acid and a stabilizing protein. In another embodiment, the nucleic acid is complexed with a carrier, for example, a peptide carrier. In yet another embodiment, the nucleic acid combined with a protein which is cross-linked to form a proteinaceous controlled release matrix. Methods for making the compositions are also described. | 06-30-2011 |
| 20110159072 | CONTROLLED RELEASE MATRIX - A biocompatible polymeric controlled release matrix for delivery of one or more bioactive agents from an implantable medical device is described. In one embodiment, the polymeric controlled release matrix is a complaint film that includes one or more compliant biocompatible polymers and one or more bioactive agents. In another embodiment, the polymeric controlled release matrix is an elastomeric collar that includes one or more elastomeric biocompatible polymers and one or more bioactive agents. | 06-30-2011 |
| 20110144373 | WATER-SOLUBLE DEGRADABLE PHOTO-CROSSLINKER - Described herein is a degradable linking agent that includes a core molecule with one or more charged groups; and one or more photoreactive groups covalently attached to the core molecule by one or more degradable linkers. | 06-16-2011 |
| 20110104392 | GRAFTING APPARATUS AND METHOD OF USING - This invention provides a coating apparatus and methods for coating a device, such as an industrially or medically applicable device. The apparatus is suitable for providing a coating using a photoactivatable compound and a polymerizable compound. In another aspect, the apparatus and methods are useful for coating a device wherein the surface of the device has small pores or apertures. The apparatus includes of containers suitable for holding the object to be coated and the coating solution, a gas supply source for supplying gas to solution, an irradiation station for providing light used in the coating process, and a conveyor mechanism to direct the containers to and from the irradiation station. | 05-05-2011 |
| 20110054417 | BIOACTIVE AGENT RELEASE COATING AND CONTROLLED HUMIDITY METHOD - A coating composition in the form of a one or multi-part system, and method of applying such a composition under conditions of controlled humidity, for use in coating device surfaces to control and/or improve their ability to release bioactive agents in aqueous systems. The coating composition is particularly adapted for use with medical devices that undergo significant flexion and/or expansion in the course of their delivery and/or use, such as stents and catheters. The composition includes the bioactive agent in combination with a first polymer component such as polyalkyl(meth)acrylate, polyaryl(meth)acrylate, polyaralkyl(meth)acrylate, or polyaryloxyalkyl(meth)acrylate and a second polymer component such as poly(ethylene-co-vinyl acetate). | 03-03-2011 |
| 20110046721 | Biodegradable Metal-Polymer Composite Constructs For Implantable Medical Devices - Embodiments of the invention include biodegradable composites and medical devices including the same. In an embodiment the invention includes a biodegradable implantable medical device. The implantable medical device can include a biodegradable composite member including a polymeric matrix and a reinforcing metal disposed within the polymeric matrix. The biodegradable composite member can be configured to erode in vivo. In an embodiment the invention includes a method of making a biodegradable implantable device including contacting a polymer mixture with a reinforcing metal, the polymer mixture comprising a polymer that degrades under in vivo conditions and the reinforcing metal comprising a metal that produces substantially non-toxic erosion products. Other embodiments are included herein. | 02-24-2011 |
| 20110021899 | CONDUCTIVE POLYMER COATINGS - An electrically conductive coating composition that includes a polymeric mixture, an electrically conductive material dispersed within the polymeric mixture and, optionally, one or more bioactive agents is described. | 01-27-2011 |
| 20110009292 | ATTACHMENT OF MOLECULES TO SURFACES - The present invention relates to methods, reagents, and substrates that can be used for, for example, immobilizing biomolecules, such as nucleic acids and proteins. In an embodiment, the present invention relates to surfaces coated with a polymer according to the present invention. In an embodiment, the present invention relates to methods for thermochemically and/or photochemically attaching molecules to a surface at a high density. | 01-13-2011 |
| 20110008526 | MULTI-LAYERED COATINGS AND METHODS FOR CONTROLLING ELUTION OF ACTIVE AGENTS - Embodiments of the invention include multi-layered coatings for controlling the elution rates of active agents and methods. In an embodiment, the invention includes a method of applying an elution control coating to a substrate. The method can include depositing a coating solution onto the substrate to form a base layer. The method can also include selecting a desired concentration of the solvent based on a desired elution rate. The method can further include removing solvent from the base layer to reach a desired concentration of the solvent and depositing a layer of parylene on the base layer. In an embodiment, the invention can include a medical device including a substrate, a base layer, and a porous layer. The base layer can include a polymeric matrix and an active agent dispersed within the polymeric matrix. The porous layer can include parylene. Other embodiments are also included herein. | 01-13-2011 |
| 20100292668 | METHOD AND APPARATUS FOR DELIVERY OF A THERAPEUTIC AGENT WITH AN EXPANDABLE MEDICAL DEVICE - Described herein is a medical device that has a collapsed configuration and an expanded configuration wherein one or more polymeric network layers are applied to the substrate and microparticles embedded in the polymeric network. The polymeric network layer or layers is/are configured to retain the microparticles when the device is in a collapsed configuration and to release the microparticles when the device is in an expanded configuration. Methods for delivering a therapeutic agent using the device and making the device are also disclosed. | 11-18-2010 |
| 20100272774 | DEVICES AND METHODS FOR DELIVERY OF BIOACTIVE AGENTS - Embodiments of the invention include bioactive agent eluting devices. In an embodiment the invention includes a bioactive agent delivery device including a substrate, a hydrophilic polymer disposed on the substrate, and a substantially amorphous bioactive agent disposed on the surface of the hydrophilic polymer. In an embodiment, the invention includes a method of making a bioactive agent delivery device including depositing a hydrophilic polymer on a substrate forming a hydrophilic surface and depositing a substantially amorphous bioactive agent on the hydrophilic surface. In an embodiment, the invention includes a bioactive agent-eluting catheter including a catheter shaft and an expandable balloon disposed on the catheter shaft. Other embodiments are included herein. | 10-28-2010 |
| 20100260850 | Controlled Release Devices and Methods for Delivery of Nucleic Acids - Embodiments of the invention include devices and methods for the delivery of nucleic acids. In an embodiment the invention includes a controlled release device including a polymeric matrix and a nucleic acid delivery construct disposed within the polymeric matrix. The nucleic acid delivery construct can include a nucleic acid molecule and a peptide molecule. The nucleic acid delivery construct can be configured to exhibit elution properties of a peptide from the polymeric matrix. The polymeric matrix can be configured to elute the nucleic acid delivery construct. Other embodiments are included herein. | 10-14-2010 |
| 20100260846 | PARTICLES FOR DELIVERY OF NUCLEIC ACIDS AND RELATED DEVICES AND METHODS - Embodiments of the invention include devices and methods for the release of nucleic acid complexes. In an embodiment the invention includes a nucleic acid delivery particle. The delivery particle can include a polymeric matrix including a polyethyleneglycol containing copolymer and a nucleic acid complex disposed within the polymeric matrix. The nucleic acid complex can include a nucleic acid and a carrier agent. In an embodiment the invention includes a medical device including a first polymeric matrix comprising a first polymer and a plurality of nucleic acid delivery particles disposed within the first polymeric matrix. The medical device can be configured to release the nucleic acid complex when the medical device is implanted within a subject. Other embodiments are included herein. | 10-14-2010 |
| 20100240789 | REAGENT AND METHOD FOR PROVIDING COATINGS ON SURFACES - A grafting reagent and related method of using the reagent to form a polymeric layer on a support surface, and particularly a porous support surface, in a manner that provides and/or preserves desired properties (such as porosity) of the surface. The reagent and method can be used to provide a thin, conformable, uniform, uncrosslinked coating having desired properties onto the surface of a preformed, and particularly a porous, polymeric substrate. The method includes the steps of a) providing a porous support surface, b) providing a nonpolymeric grafting reagent comprising a photoinitator group, c) providing one or more polymerizable monomers adapted to be contacted with the surface, in the presence of the grafting reagent, and to be polymerized upon activation of the photoinitiator; and d) applying the grafting reagent and monomer(s) to the surface in a manner, and under conditions, suitable to coat the surface with the grafting reagent and to cause the polymerization of monomers to the surface upon activation of the grafting reagent. | 09-23-2010 |
| 20100189877 | HYDROPHILIC POLYMERIC COATINGS FOR MEDICAL ARTICLES - The invention provides a durable, lubricious coating for a medical article that can be prepared from a first polymer that is synthetic, soluble in a polar liquid, and having first reactive groups, and a second polymer that is synthetic, hydrophilic, and that includes second reactive groups. The first reactive groups and a portion of the second reactive groups react to bond the first polymer to the second polymer. A portion of the second reactive groups remains unbonded which, upon neutralization, provide lubricious properties to the coating. In some aspects the coating is formed using a crosslinking agent having latent reactive groups. The coatings provide particularly long dry out times and are very useful for catheterization processes. In addition, the coatings can be subject to sterilization with ethylene oxide and retain very good durable and lubricious properties. | 07-29-2010 |
| 20100166829 | ACTIVE AGENT ELUTING MATRICES WITH PARTICULATES - The present invention is directed to polymeric matrices for the controlled release of a hydrophilic bioactive agent. Generally, the elution control matrix includes a polymeric matrix having a first polymer and a plurality of microparticles that include the hydrophilic bioactive agent. In one embodiment, the matrix includes a polymer comprising hydrophilic and hydrophobic portions. In another embodiment, the microparticles include a crosslinked hydrophilic polymer. | 07-01-2010 |
| 20100158799 | METHOD AND COMPOSITION FOR BIOACTIVE AGENT RELEASE IN VIVO - A composition for bioactive agent release in vivo. The composition includes the bioactive agent in combination with a mixture of a first polymer component such as poly(butyl methacrylate) and a second polymer component such as poly(ethylene-co-vinyl acetate). | 06-24-2010 |
| 20100093686 | COATINGS WITH CRYSTALLIZED ACTIVE AGENT(S) AND METHODS - Coatings with crystallized active agent(s) and related methods are disclosed. One method includes selecting a solvent and a polymer, selecting a concentration of an active agent of at least a certain amount of saturation, forming a coating composition having the selected concentration of the active agent, and applying the coating composition to the medical device. Also disclosed is an elution control coating which includes active agent that is at least about 80% crystallized within one week of being disposed on a medical device. One method enhances the formation of active agent crystals within a coating layer by adjusting the concentration of the active agent in the coating solution to reach some percentage of the active agent saturation point. Another method includes increasing the rate of active agent nucleation within the coating. | 04-15-2010 |
| 20100008966 | Medical Devices and Methods for Delivery of Nucleic Acids - Embodiments of the invention include devices for the release of nucleic acids and related methods. In an embodiment, the invention includes an active agent eluting coating including a polymeric matrix, a cationic carrier agent disposed with the matrix, and an active agent disposed within the matrix, the active agent including nucleic acids substantially uncomplexed with the cationic carrier agent. In an embodiment, the invention includes a method of making an implantable medical device including selecting a concentration of a cationic carrier agent corresponding to a desired elution profile, combining a matrix forming polymer, an active agent, a solvent, and the cationic carrier agent to form a coating composition having the selected concentration of the cationic carrier agent, the active agent comprising nucleic acids, and depositing the coating composition onto the surface of a substrate. Other embodiments are included herein. | 01-14-2010 |
| 20090263449 | DELIVERY OF NUCLEIC ACID COMPLEXES FROM MATERIALS INCLUDING NEGATIVELY CHARGED GROUPS - Embodiments of the invention include devices and methods for the controlled elution of nucleic acid delivery complexes. In an embodiment, the invention includes a medical device including a substrate surface, a polymeric coating disposed on the surface, the polymeric coating coupled to the substrate surface through the reaction product of a photoreactive group; the polymeric coating comprising negatively charged species on the surface; and a plurality of nucleic acid delivery complexes disposed on the polymeric coating, the nucleic acid delivery complexes comprising a nucleic acid and a cationic carrier agent complexed to the nucleic acid. Other embodiments are included herein. | 10-22-2009 |
| 20090176663 | ARRAY PRINT BUFFERS - The present invention relates to compositions suitable for spotting compounds onto a substrate, and methods employing these compositions. The composition can include one or more organic anions of formula I: R(X) | 07-09-2009 |
| 20090123436 | CRYOPRESERVATIVE COMPOSITIONS AND METHODS - The invention relates to compositions for the cryogenic storage of biological materials and related methods. In an embodiment, the invention includes a cryopreservative composition including a chaotropic agent and a kosmotropic agent. In an embodiment, the invention includes a cryopreservative composition including urea and trimethylamine-N-oxide. In an embodiment, the invention includes a method of cryopreserving cells including contacting cells with a cryopreservative composition, the cryopreservative composition comprising a chaotropic agent and a kosmotropic agent. In an embodiment, the invention includes a method of transplanting cells into a subject, the method including administering a composition to the subject, the composition comprising an effective amount of a chaotropic agent, an effective amount of a kosmotropic agent, and cells. Other embodiments are also included herein. | 05-14-2009 |
| 20090042742 | Attachment of molecules to surfaces - The present invention relates to methods, reagents, and substrates that can be used for, for example, immobilizing biomolecules, such as nucleic acids and proteins. In an embodiment, the present invention relates to surfaces coated with a polymer according to the present invention. In an embodiment, the present invention relates to methods for thermochemically and/or photochemically attaching molecules to a surface at a high density. | 02-12-2009 |
