Entries |
Document | Title | Date |
20080200979 | ANTI-RESTENOTIC THERAPEUTIC DEVICE - An anti-restontic device is provided for repairing a tissue, particularly an arteriosclerosed blood vessel or a damaged wall of a luminal or chambered organ. In some embodiments, the device comprises a structure having a first surface and a second surface. A bioactive layer is disposed on the first surface, wherein the bioactive layer enhances growth of a type of cells thereon. And an anti-restenosis layer is disposed on the second surface, wherein the anti-restenosis layer inhibits growth of another type of cells thereon. | 08-21-2008 |
20080208325 | Medical articles for long term implantation - According to an aspect of the present invention, long term medical articles are provided which include the following: (a) first and second body contacting (e.g., tissue and/or body-fluid contacting) porous polymeric layers; (b) a polymeric barrier layer disposed between the first and second porous polymer layers; and (c) a reinforcement element. According to another aspect of the present invention, tubular medical articles for long term implantation are provided, which comprise: (a) a reinforcement element; (b) a blood contacting porous polymeric layer having a surface energy ranging between 20 and 30 dynes/cm disposed over an inner surface of the reinforcement element; and (c) an additional porous polymeric layer formed over an outer surface of the reinforcement element. | 08-28-2008 |
20080319539 | Resorption-controllable medical implants - Bioresorbable medical implants are designed to have different resorption rates over time or over the topography of the implants. The resorption of the medical implants are controlled by including layers having differing resorption rates. The layers resorb sequentially over time through sequential exposure to body fluids. A resorption-controllable medical implant includes a series of two or more layers. The first layer includes a first bioresorbable material. The second layer includes a second bioresorbable material and resorbable particles of a first kind dispersed within the second bioresorbable material. Additional layers of bioresorbable material alone or including resorbable particles may be added to slow or speed resorption and achieve desired control over the resorption of the implant. Resorbable particles can be added in differing amounts or kinds in various segments of the implant to provide topographically differing resorption rates. | 12-25-2008 |
20090005860 | Method to fabricate a stent having selected morphology to reduce restenosis - Methods of fabricating a stent and a stent having selected morphology on abluminal and luminal surfaces of the stent are disclosed. | 01-01-2009 |
20090118820 | DEFORMABLE UNDERLAYER FOR STENT - An endoprosthesis includes a brittle layer, e.g. a ceramic and an underlayer to accommodate dimensional changes as the endoprosthesis is flexed. | 05-07-2009 |
20090276036 | STENT - It is intended to provide a stent having little or no risk of the breakage of a coating layer that is formed on the stent surface in the course of producing or transporting the stent or during the step of expanding the stent in clinical use. In other words, a stent to be implanted in a lumen in the living body wherein a layer including a physiologically active substance, a biodegradable polymer and a citric acid ester employed as a plasticizer is formed at least a part of the surface of the stent body. | 11-05-2009 |
20090312834 | CONTINUOUS DOUBLE LAYERED STENT FOR MIGRATION RESISTANCE - The present invention relates to stent structures having improved migration resistance. In particular, the invention relates to mesh stents, such as braided or twisted stent designs, where at least a portion of the stent is folded back over itself to form a multi-layered stent device. Such multi-layered portions provide for migration resistance, among other advantages. | 12-17-2009 |
20100042207 | RESORPTION-CONTROLLABLE MEDICAL IMPLANTS - Bioresorbable medical implants are designed to have different resorption rates over time or over the topography of the implants. The resorption of the medical implants are controlled by including layers having differing resorption rates. The layers resorb sequentially over time through sequential exposure to body fluids. A resorption-controllable medical implant includes a series of two or more layers. The first layer includes a first bioresorbable material. The second layer includes a second bioresorbable material and resorbable particles of a first kind dispersed within the second bioresorbable material. Additional layers of bioresorbable material alone or including resorbable particles may be added to slow or speed resorption and achieve desired control over the resorption of the implant. Resorbable particles can be added in differing amounts or kinds in various segments of the implant to provide topographically differing resorption rates. | 02-18-2010 |
20100063584 | ENDOPROSTHESES - Endoprosthesis assemblies and methods of making endoprosthesis assemblies are disclosed. For example, endoprosthesis assemblies are described that include an endoprosthesis body and a polymeric coating about the endoprosthesis body. The polymeric coatings are engaged tightly to the endoprosthesis wall through engageable features created on the surface of the polymeric coatings and the surface of the endoprosthesis wall prior to engaging the surfaces. | 03-11-2010 |
20100204784 | MEDICAL DEVICES INCLUDING METALLIC FILMS - Medical devices, such as endoprostheses, and methods of making the devices are disclosed. The medical device can include a composite cover formed of a deposited metallic film and one or more polymer layers. The polymer layers contribute to mechanical or biological properties of the endoprosthesis. | 08-12-2010 |
20100222874 | Intraluminal Stent Graft - A method of making a tubular intraluminal graft in the form of a tubular diametrically adjustable stent having a tubular covering of porous expanded polytetrafluoroethylene which is less than 0.10 mm thick. The covering may be on the exterior surface of the stent, or on the interior surface of the stent, or both. The covering may be affixed to the stent by an adhesive which is preferably fluorinated ethylene propylene. | 09-02-2010 |
20100286764 | VASCULAR STENT WITH COMPOSITE STRUCTURE FOR MAGNETIC RESONANCE IMAGING CAPABILITIES - A stent is adapted to be implanted in a duct of a human body to maintain an open lumen at the implant site, and to allow viewing body tissue and fluids by magnetic resonance imaging (MRI) energy applied external to the body. The stent constitutes a metal scaffold. An electrical circuit resonant at the resonance frequency of the MRI energy is fabricated integral with the scaffold structure of the stent to promote viewing body properties within the lumen of the stent. | 11-11-2010 |
20100324666 | IMPLANT AND METHOD FOR PRODUCTION OF THE SAME - One example embodiment of the present invention relates to an implant, particularly an intraluminal endoprosthesis, having a body that contains metallic material, preferably iron. The implant body has a first layer with at least one ionic compound that contains ions of at least one halogen, particularly chloride ions and/or bromide ions, on at least part of its surface. Furthermore, a method for the production of such an implant is described. | 12-23-2010 |
20100324667 | IMPLANTABLE MEDICAL DEVICES WITH ANTI-MICROBIAL AND BIODEGRADABLE MATRICES - A composite vascular graft is provided, which incorporates bioactive agents that can be controllably delivered to the implantation site to deliver therapeutic materials and/or to reduce infection of the implant. The vascular graft of the present invention includes a luminal layer of ePTFE; and a biodegradable polymer layer including a bioactive agent, such as an antimicrobial agent. The biodegradable polymer layer is posited on the external surface of the luminal ePTFE layer. The graft also includes a fabric layer, which is posited on the external surface of the biodegradable layer. The graft is particularly useful as an arterial-venous graft for hemodialysis procedures. | 12-23-2010 |
20110077732 | IMPLANT AND METHOD FOR MANUFACTURING SAME - The present invention relates to a method for manufacturing an implant, in particular an intraluminal endoprosthesis, having a body containing metallic material, preferably iron. For controlling the degradation of the implant the method includes the following steps: (a) providing a first part of the implant body; and (b) performing heat treatment which alters the carbon content and/or the boron content and/or the nitrogen content in the structure of a near-surface boundary layer in the first part of the implant body in such a way that strain on the lattice or a lattice transformation, optionally following a subsequent mechanical load, is achieved in the near-surface boundary layer. Such an implant is also described. | 03-31-2011 |
20110106242 | ARTIFICIAL BLOOD VESSEL - An artificial blood vessel includes an artificial blood vessel body layer and a silicone layer. The artificial blood vessel body layer comprises an injection section, and the silicone layer is covered and mounted on an outer surface of the injection section. The artificial blood vessel body layer and the silicone layer are formed integrally by injection-molding. The silicone layer covered and mounted on the injection section of the artificial blood vessel body layer enables the artificial blood vessel for repeated injections and effectively prevents puncture aneurysm from occurring. | 05-05-2011 |
20110144740 | Medical Devices Including Metallic Film and at Least One Filament - Medical devices, such as endoprostheses, and methods of making the devices are disclosed. The medical device can include a composite cover formed of a deposited metallic film. The cover may include one or more filaments, e.g., wires, which cooperate with the film to provide desirable mechanical properties. The wires may be integrated with the film by depositing the film over the wires. | 06-16-2011 |
20110178594 | BIOABSORBABLE BLEND FOR TEMPORARY SCAFFOLDING OF THE BLOOD VESSEL WALL - A bioabsorbable blend comprising poly(L-lactide) (PLLA) and a phosphorylcholine group-containing copolymer (PPCP) capable of enduring the mechanical strength of blood vessel walls and applicable for fabricating cardiovascular devices was developed. The blend acts as a scaffold to support blood vessel walls during vascular healing and undergoes biodegradation in vivo after vascular healing is complete. Furthermore, the blend can prevent the formation and adsorption of thrombi. | 07-21-2011 |
20110282437 | ENDOPROSTHESIS - In embodiments, a stent comprises a biodegradable polymer functionalized with an adhesion-enhancing amino acid. | 11-17-2011 |
20120172977 | STENT GRAFT WITH TWO LAYER ePTFE LAYER SYSTEM WITH HIGH PLASTICITY AND HIGH RIGIDITY - A vascular prosthesis and method are disclosed comprising a first flexible stent having a lattice structure with a compacted configuration and an expanded configuration, a second flexible stent inside the first flexible stent to form a tubular structure, a first film layer of graft material such as expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, and a second film layer of expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, the second layer having a higher rigidity and a lower plasticity than the first layer. | 07-05-2012 |
20130090723 | PUNCTURABLE AND RESEALABLE GRAFT - Implantable grafts, particularly for arteriovenous access that may be punctured by an object such as a needle and, following removal of the object, will reseal the resulting hole to the extent of reducing fluid leakage through the graft at the puncture site to an amount less than would be typical for a conventional graft. More particularly, the grafts comprise three layers; an inner layer of implantable graft material such as ePTFE, a middle layer of self sealing elastomeric material such as silicone, and an outer layer of implantable graft material such as ePTFE. Following manufacture, the tubular form of the three-layer graft is everted to put substantially the entire wall thickness of the elastomeric material layer under circumferential compression. | 04-11-2013 |
20130253637 | Polymer-Bioceramic Composite Medical Devices with Bioceramic Particles having Grafted Polymers - Methods and devices relating to polymer-bioceramic composite implantable medical devices are disclosed. | 09-26-2013 |
20130268062 | COMPOSITE PROSTHETIC DEVICES - The present disclosure provides composite prosthetic devices comprising two or more layers of electrospun polymers and methods of preparation thereof. In some embodiments, the two or more layers can be porous and in other embodiments, one or more components is nonporous. The composite prosthetic devices can comprise various materials and the properties of the prosthetic devices can be tailored for use in a range of different applications. | 10-10-2013 |
20130345795 | BIOABSORBABLE STENT WITH PROHEALING LAYER - Stents and methods of fabricating stents with prohealing layers and drug-polymer layers are disclosed. | 12-26-2013 |
20140074225 | ROTATIONAL SPUN MATERIAL COVERED MEDICAL APPLIANCES AND METHODS OF MANUFACTURE - A medical appliance or prosthesis may comprise one or more layers of rotational spun nanofibers, including rotational spun polymers. The rotational spun material may comprise layers including layers of polytetrafluoroethylene (PTFE). Rotational spun nanofiber mats of certain porosities may permit tissue ingrowth into or attachment to the prosthesis. Additionally, one or more cuffs may be configured to allow tissue ingrowth to anchor the prosthesis. | 03-13-2014 |
20160128849 | Degradable implantable medical devices - Devices and methods are provided for an implantable medical device which is degradable over a clinically relevant period of time. The medical devices may have the form of implants, graft implants, vascular implants, non vascular implants, wound closure implants, sutures, drug delivery implants, biologic delivery implants, urinary tract implants, inter-uterine implants, organ implants, bone implants including bone plates, bone screws, dental implants, spinal disks, or the like. In preferred embodiments, the implantable medical device comprises an implantable luminal prosthesis, such as vascular and non-vascular stents and stents grafts. | 05-12-2016 |
20160151177 | Stent with Outer Member to Embolize an Aneurysm | 06-02-2016 |
20160250048 | LAYERED MEDICAL APPLIANCES AND METHODS | 09-01-2016 |