Patents by Inventor Aron B. Anderson
Aron B. Anderson 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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Patent number: 8722076Abstract: The invention provides polymers comprising pendent photochrome or near IR dye groups, as well as polymeric matrices made from these polymers, which can be used as or in association with a medical article. The polymers can be synthesized using methods that facilitate the preparation of medical articles having good biocompatibility. Exemplary polymeric matrices are in the form of lubricious coatings on medical devices, such as catheters. Visualization by irradiation of the photochrome or near IR dye can improve detection of the polymeric matrix on a device or in the body. This, in turn can improve aspects of a medical procedure, such as device insertion or matrix formation, as well as being useful for assessing the quality of the matrix.Type: GrantFiled: September 29, 2011Date of Patent: May 13, 2014Assignee: SurModics, Inc.Inventors: Emily R. Rolfes Meyering, Aron B. Anderson
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Patent number: 8663674Abstract: Polymeric matrices including microparticles that provide sustained release of a hydrophilic bioactive agent are described. The matrices can be in the form of a coating on the surface of an implantable medical article or an in situ formed matrix. The microparticles of the matrix include a first polymer and a second polymer that modulates release of the hydrophilic bioactive agent from the matrix.Type: GrantFiled: January 12, 2007Date of Patent: March 4, 2014Assignee: Surmodics, Inc.Inventors: Jie Wen, Aron B. Anderson
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Patent number: 8241921Abstract: 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.Type: GrantFiled: December 28, 2009Date of Patent: August 14, 2012Assignee: Surmodics, Inc.Inventors: Joram Slager, Aron B. Anderson
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Publication number: 20120082713Abstract: The invention provides polymers comprising pendent photochrome or near IR dye groups, as well as polymeric matrices made from these polymers, which can be used as or in association with a medical article. The polymers can be synthesized using methods that facilitate the preparation of medical articles having good biocompatibility. Exemplary polymeric matrices are in the form of lubricious coatings on medical devices, such as catheters. Visualization by irradiation of the photochrome or near IR dye can improve detection of the polymeric matrix on a device or in the body. This, in turn can improve aspects of a medical procedure, such as device insertion or matrix formation, as well as being useful for assessing the quality of the matrix.Type: ApplicationFiled: September 29, 2011Publication date: April 5, 2012Inventors: Emily R. Rolfes Meyering, Aron B. Anderson
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Patent number: 8034369Abstract: The invention provides a controlled release bioactive agent delivery device for treatment of an eye that includes a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension, and a polymeric coated composition in contact with a surface of the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent. The first polymer and the second polymer are hydrophobic, and the body member has a length such that, upon placement of the device at an implantation site within a posterior segment of an eye, the device does not enter a central visual field of the eye. The invention also provides methods method of delivering bioactive agent to a posterior region of an eye.Type: GrantFiled: September 12, 2005Date of Patent: October 11, 2011Assignee: Surmodics, Inc.Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
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Patent number: 8021680Abstract: The invention provides a controlled release bioactive agent delivery device that includes a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension, and a polymeric coated composition in contact with the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent, wherein the first polymer comprises polyalkyl(meth)acrylate, aromatic poly(meth)acrylate, or a combination of polyalkyl(meth)acrylate and aromatic poly(meth)acrylate, and wherein the second polymer comprises poly(ethylene-co-vinyl acetate). The invention also provides methods of delivering a bioactive agent to a patient in a controlled release manner, as well as methods of making a controlled release bioactive agent delivery device.Type: GrantFiled: April 29, 2004Date of Patent: September 20, 2011Assignee: Surmodics, Inc.Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
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Patent number: 7976862Abstract: The invention provides implantable sustained release bioactive agent delivery devices that include a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension; and a polymeric coated composition in contact with a surface of the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent. The polymeric coated composition is formulated to provide controlled release of bioactive agent over time when introduced into physiological conditions. Methods of preparing implantable devices configured and formulated to provide controlled release of bioactive agent are also provided.Type: GrantFiled: August 15, 2005Date of Patent: July 12, 2011Assignee: Surmodics, Inc.Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
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Publication number: 20110054417Abstract: 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).Type: ApplicationFiled: November 8, 2010Publication date: March 3, 2011Applicant: SurModics, Inc.Inventors: Ralph A. Chappa, Robert W. Hergenrother, Aron B. Anderson, Linh V. Tran, Laurie R. Lawin, Ronald F. Ofstead
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Patent number: 7833548Abstract: 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).Type: GrantFiled: August 19, 2005Date of Patent: November 16, 2010Assignee: Surmodics, Inc.Inventors: Ralph A. Chappa, Robert W. Hergenrother, Aron B. Anderson, Linh V. Tran, Laurie R. Lawin, Ronald F. Ofstead
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Patent number: 7824704Abstract: The invention provides retrievable devices for sustained delivery of bioactive agent to a site within a patient, the devices including a body member having a direction of extension, a longitudinal axis along the direction of extension, and a proximal end and a distal end, wherein at least a portion of the body member deviates from the direction of extension; a cap at the proximal end of the body member; and a polymeric coated composition in contact with a surface of the body member, the polymeric coated composition including a first polymer, a second polymer, and a bioactive agent.Type: GrantFiled: August 15, 2005Date of Patent: November 2, 2010Assignee: Surmodics, Inc.Inventors: Aron B. Anderson, Laurie R. Lawin, Byron C. Shen, Eugene de Juan, Signe E. Varner, Ralph A. Chappa
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Publication number: 20100166829Abstract: 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.Type: ApplicationFiled: December 28, 2009Publication date: July 1, 2010Applicant: SurModics, Inc.Inventors: Joram Slager, Aron B. Anderson
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Publication number: 20100158799Abstract: 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).Type: ApplicationFiled: March 3, 2010Publication date: June 24, 2010Applicant: SurModics, Inc.Inventors: Stephen J. Chudzik, Timothy M. Kloke, Laurie R. Lawin, Ronald F. Ofstead, Ralph A. Chappa, Robert W. Hergenrother, Aron B. Anderson, Linh V. Tran
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Patent number: 7638344Abstract: 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.Type: GrantFiled: June 28, 2007Date of Patent: December 29, 2009Assignee: SurModics, Inc.Inventors: Joram Slager, Aron B. Anderson
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Patent number: 7550444Abstract: The invention provides methods and compositions for providing biocompatible surfaces to medical articles. In particular the invention provides biocompatible coatings with heparin activity. In some aspects, the biocompatible coatings of the invention are able to release a bioactive agent. The coatings can be formed using biostable or biodegradable polymeric material and photoreactive groups. The invention also provides methods for improving the quality of bioactive agent-containing coatings by performing pre-irradiation of biocompatible coating compositions.Type: GrantFiled: March 25, 2005Date of Patent: June 23, 2009Assignee: SurModics, Inc.Inventors: Sean M. Stucke, Ralph A. Chappa, Joseph A. Chinn, Aron B. Anderson
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Patent number: 7442402Abstract: A coating composition for use in coating implantable medical devices to improve their ability to release bioactive agents in vivo. The coating composition is particularly adapted for use with 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 mixture of a first polymer component such as poly(butyl methacrylate) and a second polymer component such as poly(ethylene-co-vinyl acetate).Type: GrantFiled: November 17, 2005Date of Patent: October 28, 2008Assignee: SurModics, Inc.Inventors: Stephen J. Chudzik, Aron B. Anderson, Ralph A. Chappa, Timothy M. Kloke
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Publication number: 20070248637Abstract: 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).Type: ApplicationFiled: August 19, 2005Publication date: October 25, 2007Inventors: Ralph A. Chappa, Robert W. Hergenrother, Aron B. Anderson, Linh V. Tran, Laurie R. Lawin, Ronald F. Ofstead
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Patent number: 7144573Abstract: A reagent and related method for use in passivating a biomaterial surface, the reagent including a latent reactive group and a bifunctional aliphatic acid (e.g., fatty acid), in combination with a spacer group linking the latent reactive group to the aliphatic acid in a manner that preserves the desired function of each group. Once bound to the surface, via the latent reactive group, the reagent presents the aliphatic acid to the physiological environment, in vivo, in a manner (e.g., concentration and orientation) sufficient to hold and orient albumin.Type: GrantFiled: August 26, 2005Date of Patent: December 5, 2006Assignee: SurModics, Inc.Inventors: Patrick E. Guire, Aron B. Anderson, Richard A. Amos, Terrence P. Everson, Peter H. Duquette
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Patent number: 7097850Abstract: 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).Type: GrantFiled: June 18, 2002Date of Patent: August 29, 2006Assignee: SurModics, Inc.Inventors: Ralph A. Chappa, Robert W. Hergenrother, Aron B. Anderson, Linh V. Tran, Laurie R. Lawin, Ronald F. Ofstead
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Patent number: 7071235Abstract: A reagent and related method for use in passivating a biomaterial surface, the reagent including a latent reactive group and a bifunctional aliphatic acid (e.g., fatty acid), in combination with a spacer group linking the latent reactive group to the aliphatic acid in a manner that preserves the desired function of each group. Once bound to the surface, via the latent reactive group, the reagent presents the aliphatic acid to the physiological environment, in vivo, in a manner (e.g., concentration and orientation) sufficient to hold and orient albumin.Type: GrantFiled: April 24, 2003Date of Patent: July 4, 2006Assignee: SurModics, Inc.Inventors: Patrick E. Guire, Aron B. Anderson, Richard A. Amos, Terrence P. Everson, Peter H. Duquette
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Patent number: 7008667Abstract: A coating composition for use in coating implantable medical devices to improve their ability to release bioactive agents in vivo. The coating composition is particularly adapted for use with 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 mixture of a first polymer component such as poly(butyl methacrylate) and a second polymer component such as poly(ethylene-co-vinyl acetate).Type: GrantFiled: October 10, 2002Date of Patent: March 7, 2006Assignee: SurModics, Inc.Inventors: Stephen J. Chudzik, Aron B. Anderson, Ralph A. Chappa, Timothy M. Kloke