Abstract: Implantable devices formed of or coated with a material that includes a polymer having a non-fouling acrylate or methacrylate polymer are provided. The implantable device can be used for treating or preventing a disorder such as atherosclerosis, thrombosis, restenosis, hemorrhage, vascular dissection or perforation, vascular aneurysm, vulnerable plaque, chronic total occlusion, patent foramen ovale, claudication, anastomotic proliferation for vein and artificial grafts, bile duct obstruction, ureter obstruction, tumor obstruction, or combinations thereof.
Abstract: A biobeneficial coating composition for coating an implantable device, such as a drug eluting stent, and a method of coating the device with the composition, and an implantable device coated with the composition are provided.
Abstract: The present invention relates to providing a porous, hydrophobic polymer with a hemocompatible substance and to the materials produced thereby. One embodiment of the present invention relates to the providing of expanded poly(tetrafluoroethylene) with one or more complexes of heparin, typically containing heparin in combination with a hydrophobic counter ion. The hemocompatible substance is dissolved in a mixture of solvents in which a first solvent wets the polymer to be coated and the second solvent enhances the solubility of the hemocompatible substance material in the solvent mixture. Typical first solvents wetting hydrophobic polymers include non-polar such as hydrochlorofluorocarbons. Typical second solvents include polar solvents such as organic alcohols and ketones. Azeotropic mixtures of the second solvent in the first solvent are used in some embodiments of the present invention although second solvents may be employed in a range of concentration ranges from less than 0.1% up to saturation.
Abstract: A method of manufacturing an implantable medical device, such as a drug eluting stent, is disclosed. The method includes subjecting an implantable medical device that includes a polymer to a thermal condition. The thermal condition can result in reduction of the rate of release of an active agent from the device subsequent to the implantation of the device and/or improve the mechanical properties of a polymeric coating on the device.
Type:
Grant
Filed:
May 27, 2004
Date of Patent:
October 5, 2010
Assignee:
Advanced Cardiovascular Systems, Inc.
Inventors:
Syed F. A. Hossainy, Yiwen Tang, Manish Gada
Abstract: Coatings for implantable medical devices and methods for fabricating the same are disclosed. The coating includes a hydrogel including polycationic peptides, for example the R7.
Abstract: Methods of forming coatings comprising a polycationic peptide for medical devices are disclosed. Also disclosed is a coating comprising a polycationic peptide.
Type:
Grant
Filed:
August 26, 2005
Date of Patent:
September 28, 2010
Assignee:
Advanced Cardiovascular Systems, Inc.
Inventors:
Stephen D. Pacetti, Eugene T. Michal, Syed F. A. Hossainy, Ni Ding, Wouter E. Roorda
Abstract: A method of treatment, including separately delivering a treatment agent and a barrier having a binding member to a tissue, the binding member having a property adapted to couple to a surface of the tissue, wherein the barrier is present in an amount sufficient to permit transport of the treatment agent from the tissue at a lower rate than transport in the absence of the barrier component, wherein the barrier is biodegradable and hinders transport of the treatment agent away from the tissue but allows the treatment agent to migrate toward the tissue.
Abstract: Stents fabricated from hydrolytically degradable polymers with accelerated degradation rates and methods of fabricating stents with accelerated degradation rates are disclosed.
Type:
Grant
Filed:
July 17, 2006
Date of Patent:
September 14, 2010
Assignee:
Advanced Cardiovascular Systems, Inc.
Inventors:
David C. Gale, Bin Huang, Vincent J. Gueriguian, Syed Faiyaz Ahmed Hossainy
Abstract: An echogenic catheter, such as a needle catheter, formed at least in part of an intrinsically conductive organic polymer for providing a highly conductive surface in combination with an improved ability to ultrasonically image the catheter, and a method of performing a medical procedure using a catheter of the invention.
Abstract: Bioabsorbable, polyurethane-based stent coatings that comprise non-fouling coatings with polyethylene glycol and hyaluronic acid are disclosed. In addition to these coatings, medical devices comprising these coatings and methods of applying the coatings are disclosed.
Type:
Grant
Filed:
April 26, 2005
Date of Patent:
September 14, 2010
Assignee:
Advanced Cardiovascular Systems, Inc.
Inventors:
Stephen Dirk Pacetti, Charles Claude, Irina Astafieva
Abstract: Polycationic peptide coatings for implantable medical devices and methods of making the same are described. The methods include applying an emulsion on the device, the emulsion including a polymer and a polycationic peptide. Other methods include incorporation of the polycationic peptide in microspheres and liposomes.
Type:
Grant
Filed:
September 2, 2005
Date of Patent:
September 14, 2010
Assignee:
Advanced Cardiovascular Systems, Inc.
Inventors:
Murthy V. Simhambhatla, Ni Ding, Stephen D. Pacetti
Abstract: Methods and compositions for the sustained release of treatment agents to treat an occluded blood vessel and affected tissue and/or organs are disclosed. Porous or non-porous bioabsorbable glass, metal or ceramic bead, rod or fiber particles can be loaded with a treatment agent, and optionally an image-enhancing agent, and coated with a sustained-release coating for delivery to an occluded blood vessel and affected tissue and/or organs by a delivery device. Implantable medical devices manufactured with coatings including the particles or embedded within the medical device are additionally disclosed.
Type:
Application
Filed:
May 18, 2010
Publication date:
September 2, 2010
Applicant:
Advanced Cardiovascular Systems, Inc.
Inventors:
Lothar W. Kleiner, Syed Hossainy, Irina Astafieva, Stephen Pacetti, Thierry Glauser, Jessica Desnoyer, Florian N. Ludwig
Abstract: A method and system for making a composition for use in manufacturing an implantable medical device, such as a drug-eluting and/or delivery stent, is described. The method includes introducing a polymer, active agent, and a solvent into a mixing apparatus such as an extruder. The polymer, active agent, and solvent may be mixed in the apparatus to form a homogeneous or substantially homogeneous polymer mixture. The method may further include controlling a temperature of the polymer mixture in at least a portion of the apparatus. In an embodiment, the polymer mixture may be used as a coating for an implantable medical device, or fabricating an implantable medical device. The invention also includes a composition formed by the method described above.
Abstract: This disclosure covers polymers, which are useful in medical device applications. The polymers comprise at least two different blocks, at least one L1 block with the formula and at least one L2 block with the formula Medical devices comprising these polymers, mixtures of these polymers with therapeutic agents, and methods of making these polymers and mixtures are within the scope of this disclosure. Some of these medical devices are implantable within a mammalian body, such as in a body lumen.
Abstract: A device for use in capturing or collecting debris found in blood vessels or other body lumens. The devices can be fabricated from a tube and include longitudinally and circumferentially extending members. The device can further embody structure that provides enhanced radial opening and angular resistance to collapse and structure for absorbing or modifying forces applied thereto by an operator.
Type:
Grant
Filed:
October 6, 2003
Date of Patent:
August 24, 2010
Assignee:
Advanced CArdiovascular Systems, Inc.
Inventors:
Olin Palmer, Christopher T. Shen, Robert LaDuca, Larry Voss, Saypin Phonthalasa, John E. Papp, Stephen A. Morales, Coeta K. Peloquin, Charles R. Peterson, Anuja H. Patel
Abstract: An apparatus and method to perform therapeutic treatment and diagnosis of a patient's vasculature through the use of an intravascular device having an optical fiber disposed therein. In an embodiment, the apparatus includes an intravascular device to perform a therapeutic treatment and at least one optical fiber disposed through the intravascular device. The optical fiber is configured to provide diagnostic information before, during, and after the therapeutic treatment. In an embodiment, diagnostic information includes vessel and blood characteristics such as hemodynamic characteristics, hematological parameters related to blood and blood components, and thermal parameters of the vasculature.
Type:
Grant
Filed:
January 9, 2008
Date of Patent:
August 24, 2010
Assignee:
Advanced Cardiovascular Systems, Inc.
Inventors:
Robert Ainsworth, Deborah Kilpatrick, Jeong S. Lee, Bridget A. Hurley, Jeffrey T. Ellis
Abstract: An apparatus and method for coating abluminal surface of a stent is described. The apparatus includes a stent support, a coating device, and an imaging system. The coating device includes a solution reservoir and transducer assembly. The transducer assembly includes a plurality of transducers and a controller. Each transducer is used to generate focused acoustic waves in the coating substance in the reservoir. A controller is communicated to an image system to enable the transducers to generate droplets on demand and at the predetermined ejection points on the surface of the coating substance to coat the stent. A method for coating a stent includes stent mounting, stent movement, and droplet excitation.