Patents by Inventor David E. Babcock
David E. Babcock has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180110903Abstract: Embodiments of the invention include drug delivery coatings and devices including the same. In an embodiment, the invention includes a drug delivery coating including a polymeric layer. The polymeric layer can include a hydrophilic outer surface. The coating can also include a matrix contacting the hydrophilic outer surface. The matrix can include a particulate hydrophobic therapeutic agent and a cationic agent. The polymeric layer can further include a hydrophilic polymer having pendent photoreactive groups and a photo-crosslinker including two aryl ketone functionalities. Other embodiments are also included herein.Type: ApplicationFiled: December 21, 2017Publication date: April 26, 2018Inventors: Joram Slager, Toni M. Heyer, David E. Babcock
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Patent number: 9861727Abstract: Embodiments of the invention include drug delivery coatings and devices including the same. In an embodiment, the invention includes a drug delivery coating including a polymeric layer. The polymeric layer can include a hydrophilic outer surface. The coating can also include a matrix contacting the hydrophilic outer surface. The matrix can include a particulate hydrophobic therapeutic agent and a cationic agent. The polymeric layer can further include a hydrophilic polymer having pendent photoreactive groups and a photo-crosslinker including two aryl ketone functionalities. Other embodiments are also included herein.Type: GrantFiled: January 29, 2015Date of Patent: January 9, 2018Assignee: Surmodics, Inc.Inventors: Joram Slager, Toni M. Heyer, David E. Babcock
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Publication number: 20170304506Abstract: Embodiments of the invention include lubricious medical device coatings. In an embodiment the invention includes a coating for a medical device including a first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; and a first cross-linking agent comprising at least two photoreactive groups; a second layer disposed on the first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; a second cross-linking agent comprising at least two photoreactive groups; and a polymer comprising polyacrylamide, the polymer derivatized with at least one photoreactive group. Other embodiments are included herein.Type: ApplicationFiled: July 7, 2017Publication date: October 26, 2017Inventor: David E. Babcock
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Patent number: 9737639Abstract: Embodiments of the invention include lubricious medical device coatings. In an embodiment the invention includes a coating for a medical device including a first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; and a first cross-linking agent comprising at least two photoreactive groups; a second layer disposed on the first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; a second cross-linking agent comprising at least two photoreactive groups; and a polymer comprising polyacrylamide, the polymer derivatized with at least one photoreactive group. Other embodiments are included herein.Type: GrantFiled: May 26, 2016Date of Patent: August 22, 2017Assignee: Surmodics, Inc.Inventor: David E. Babcock
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Publication number: 20170224876Abstract: Embodiments of the disclosure include coatings comprising an oligomerized polyphenol layer. The oligomerized polyphenol layer can be used as an intermediate coated layer on a medical device that hydrogen bonds to a synthetic or natural polymer, which in turn can be used as a top coat or further associated with another coated layer. The multilayered coatings can provide properties such as hemocompatibility or lubricity. In other embodiments, the oligomerized polyphenol layer is used on a medical device as a hemostatic layer configured to contact blood and promote coagulation. The oligomerized polyphenol layer can also be used on the inner surface (e.g., inner diameter) of a medical device to prevent bacterial adherence. The oligomerized polyphenol layer can also be used on the surface of a in vitro diagnostic article, or a cell culture device to, promote adsorption of a biological mo lecule.Type: ApplicationFiled: August 6, 2015Publication date: August 10, 2017Applicant: SURMODICS, INC.Inventors: David E. Babcock, Sean Lundquist, Gary Opperman, Adriyn Torguson, Tim Jentz
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Publication number: 20170182224Abstract: Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.Type: ApplicationFiled: December 12, 2016Publication date: June 29, 2017Inventors: David E. Babcock, Joram Slager, Robert W. Hergenrother
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Publication number: 20170112973Abstract: Embodiments of the invention include drug delivery coatings and devices including the same. In an embodiment, the invention includes a drug delivery coating including a polymeric layer. The polymeric layer can include a hydrophilic outer surface. The coating can also include a matrix contacting the hydrophilic outer surface. The matrix can include a particulate hydrophobic therapeutic agent and a cationic agent. The polymeric layer can further include a hydrophilic polymer having pendent photoreactive groups and a photo-crosslinker including two aryl ketone functionalities. Other embodiments are also included herein.Type: ApplicationFiled: December 20, 2016Publication date: April 27, 2017Inventors: Joram Slager, Toni M. Heyer, David E. Babcock
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Publication number: 20170072129Abstract: A hemodialysis vascular access device includes a proximal end sized and shaped to sealably couple to a hemodialysis catheter, a movable structure coupled to the proximal end, a fixation structure coupled to the movable region and sized and shaped for fixation on a patient, an elongated sleeve coupled to the fixation structure and sized and shaped for insertion into a patient's vasculature, and a valve at a distal end of the internal lumen. When a hemodialysis catheter is inserted into the device and coupled to the proximal end, distal movement of the proximal end relative to the fixation structure biases a distal end of the hemodialysis catheter from a position inside the elongated sleeve through a valve out of the device and into the patient's blood.Type: ApplicationFiled: September 6, 2016Publication date: March 16, 2017Inventors: Joram Slager, Joe McGonigle, Anh Tri La, David E. Babcock, Bruce Jelle, Aleksey Kurdyumov, Timothy M. Kloke, Charlie Olson, Gary Maharaj, Nathan Lockwood
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Publication number: 20160271300Abstract: Embodiments of the invention include lubricious medical device coatings. In an embodiment the invention includes a coating for a medical device including a first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; and a first cross-linking agent comprising at least two photoreactive groups; a second layer disposed on the first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; a second cross-linking agent comprising at least two photoreactive groups; and a polymer comprising polyacrylamide, the polymer derivatized with at least one photoreactive group. Other embodiments are included herein.Type: ApplicationFiled: May 26, 2016Publication date: September 22, 2016Inventor: David E. Babcock
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Patent number: 9375517Abstract: Embodiments of the invention include lubricious medical device coatings. In an embodiment the invention includes a coating for a medical device including a first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; and a first cross-linking agent comprising at least two photoreactive groups; a second layer disposed on the first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; a second cross-linking agent comprising at least two photoreactive groups; and a polymer comprising polyacrylamide, the polymer derivatized with at least one photoreactive group. Other embodiments are included herein.Type: GrantFiled: January 18, 2013Date of Patent: June 28, 2016Assignee: SurModies, Inc.Inventor: David E. Babcock
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Publication number: 20160175489Abstract: Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including first and second coated layers. The first coated layer is between the second coated layer and the device surface and includes a vinyl pyrrolidone polymer and a photo reactive group. The second coated layer is in direct contact with the first coated layer and is a top coating that includes an acrylic acid polymer. The second coated layer can optionally include photoreactive groups. The coating was found to have a very low number of particulates (e.g., 10 ?m or greater) which is very desirable for in vivo use.Type: ApplicationFiled: February 29, 2016Publication date: June 23, 2016Inventors: David E. Babcock, Timothy M. Kloke, Joseph S. McGonigle, Nathan Lockwood, Bruce Jelle
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Publication number: 20150140107Abstract: Embodiments of the invention include drug delivery coatings and devices including the same. In an embodiment, the invention includes a drug delivery coating including a polymeric layer. The polymeric layer can include a hydrophilic outer surface. The coating can also include a matrix contacting the hydrophilic outer surface. The matrix can include a particulate hydrophobic therapeutic agent and a cationic agent. The polymeric layer can further include a hydrophilic polymer having pendent photoreactive groups and a photo-crosslinker including two aryl ketone functionalities. Other embodiments are also included herein.Type: ApplicationFiled: January 29, 2015Publication date: May 21, 2015Inventors: Joram Slager, Toni M. Heyer, David E. Babcock
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Publication number: 20140193474Abstract: Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including first and second coated layers. The first coated layer is between the second coated layer and the device surface and includes a vinyl pyrrolidone polymer and a photo reactive group. The second coated layer is in direct contact with the first coated layer and is a top coating that includes an acrylic acid polymer. The second coated layer can optionally include photoreactive groups. The coating was found to have a very low number of particulates (e.g., 10 ?m or greater) which is very desirable for in vivo use.Type: ApplicationFiled: January 6, 2014Publication date: July 10, 2014Inventors: DAVID E. BABCOCK, TIMOTHY M. KLOKE, JOSEPH S. MCGONIGLE
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Publication number: 20130197433Abstract: Embodiments of the invention include lubricious medical device coatings. In an embodiment the invention includes a coating for a medical device including a first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; and a first cross-linking agent comprising at least two photoreactive groups; a second layer disposed on the first layer comprising polyvinylpyrrolidone derivatized with a photoreactive group; a second cross-linking agent comprising at least two photoreactive groups; and a polymer comprising polyacrylamide, the polymer derivatized with at least one photoreactive group. Other embodiments are included herein.Type: ApplicationFiled: January 18, 2013Publication date: August 1, 2013Applicant: SurModics, Inc.Inventor: David E. Babcock
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Publication number: 20120100187Abstract: 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.Type: ApplicationFiled: October 26, 2011Publication date: April 26, 2012Applicant: SURMODICS, INC.Inventors: Ralph A. Chappa, Michael J. Burkstrand, David E. Babcock
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Publication number: 20110244014Abstract: Laminin-containing coatings for the surfaces of implantable medical devices are disclosed. The coatings promote the formation of vessels in association with the coated surfaces with minimal fibrotic response.Type: ApplicationFiled: January 31, 2011Publication date: October 6, 2011Inventors: Stuart K. Williams, David E. Babcock, Joseph A. Chinn, David L. Clapper
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Publication number: 20110229457Abstract: 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.Type: ApplicationFiled: March 11, 2011Publication date: September 22, 2011Applicant: SurModics, Inc.Inventors: Timothy M. Kloke, Joram Slager, Laxma Gundlapally Reddy, David E. Babcock
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Publication number: 20080243243Abstract: Coatings including adhesion factors for the surfaces of implantable medical articles are disclosed. The coatings are used to improve the function of the device by promoting a pro-healing response following implantation. The coatings can modulate endothelialization of the article surface to reduce the risk of adverse tissue responses that may reduce the functionality of the device.Type: ApplicationFiled: July 3, 2007Publication date: October 2, 2008Inventors: Stuart K. Williams, David E. Babcock, Joseph A. Chinn, David L. Clapper
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Patent number: 6769559Abstract: A venting plastic closure for use with an associated container includes an outer plastic cap having a top wall portion and an annular depending skirt including an internal thread formation. A disc-shaped sealing liner is positioned on the inside surface of the top wall portion for creating a top/inside seal with the associated container. In order to facilitate venting of gas pressure from within the container, and to facilitate removal of the closure from the container by consumers, the closure includes one or more positive stop elements which engage the container after the sealing liner of the closure has been sealingly engaged therewith. The stop elements act to limit the degree of sealing engagement between the sealing lines of the closure and the finish of the closure.Type: GrantFiled: November 25, 2002Date of Patent: August 3, 2004Assignee: Alcoa Closure Systems InternationalInventors: John D. Ziegler, David E. Babcock, Coy Herald
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Patent number: 6758359Abstract: A container closure is disclosed which includes a shell attachable to a container around a container opening thereof. The shell has a shell opening in fluid communication with the container opening when the shell is attached to the container. A tip is received on the shell movable between a closed position sealing the shell opening and an open position. A cover is releasably attached to the shell in a manner indicative of the tip being positioned in the closed position when the cover is attached to the shell. Both the shell and the cover may be provided with tamper-evident bands. The present invention is particularly well adapted to be formed as a push-pull container closure for sports bottles and the like.Type: GrantFiled: October 11, 2001Date of Patent: July 6, 2004Assignees: Erie County Plastics Corporation, Aluminum Company of America (ALCOA)Inventors: Michael Yurkewicz, Robert J. Smith, Gregg S. Montgomery, Stephen Getsy, David E. Babcock, Mike G. Palma, Lee Albrecht, Paul W. Robbins