Patent application number | Description | Published |
20090292225 | MEDICAL DEVICE INCLUDING A BRAID FOR CROSSING AN OCCLUSION IN A VESSEL - The invention provides design, material, manufacturing method, and use alternatives for medical devices. An example medical guidewire includes an elongate core member including a proximal region and a distal region, a braid member disposed about at least a portion of the distal region of the elongate core member, a polymer member disposed between at least a portion of the elongate core member and the braid member, and a polymer sleeve member disposed about at least a portion of the braid member. The proximal region of the core member is free of the braid member. | 11-26-2009 |
20100004631 | MEDICAL DEVICE INCLUDING BRAID WITH COATED PORTION - Alternative design, material, manufacturing method, and use for medical devices, such as catheters, catheter shafts and the like. An example includes a medical device, such as a catheter shaft, including an elongated tubular braid comprising a plurality of filaments and including an end portion coated with a first polymeric material having a first melting point temperature, wherein the first polymeric material attaches the braid filaments together. A second polymeric material having a second melting temperature lower than the first melting point temperature may be attached to the coated end portion of the braid. In some embodiments, the underlying a first polymeric material may reduce the tendency of the braid to flair into the second polymeric material. Other examples relate to methods of making such medical devices, such as a catheter shaft, of the like. | 01-07-2010 |
20100043959 | Medical Device Incorporating a Polymer Blend - A catheter including a catheter shaft formed from a polymer blend and/or a braid. The polymer blend may include polyoxymethylene added in the dispersion phase to a polymer blend. The catheter braid can be formed from at least two continuous wires that are woven together. The catheter braid can include a proximal braid section and a distal braid section. Each of the continuous wires has a proximal diameter corresponding to the proximal braid section and a distal diameter corresponding to the distal braid section. The distal diameter of each wire can be less than the proximal diameter of that wire. A catheter braid so formed can be included in a catheter. | 02-25-2010 |
20110118628 | GUIDEWIRES INCLUDING A POROUS NICKEL-TITANIUM ALLOY - Medical devices and methods for making and using the same. An example medical device may include a guidewire. The guidewire may include an elongate shaft. The shaft may include a porous metal alloy. The porous metal alloy may be arranged so that the porous metal alloy has a first pore distribution along a first portion of the shaft and a second pore distribution different from the first pore distribution along a second portion of the shaft. | 05-19-2011 |
20110224770 | Drug Eluting Stents and Methods of Making the Same - A stent formed from a bioabsorbable polymer matrix including at least one bioabsorbable polymer and at least one therapeutic agent dispersed therein, and methods of making the same. | 09-15-2011 |
20120101519 | POROUS VASCULAR CLOSURE PLUG WITH STARCH POWDER - The disclosure provides a composite plug for vascular closure including a hemostatic material, and a method of manufacturing the composite plug including a hemostatic material. The composite plug may comprise one or more materials having varying porosity, density, or composition, and may include a powdered hemostatic material. | 04-26-2012 |
20120323308 | Coatings for Medical Devices Comprising a Therapeutic Agent and a Metallic Material - The invention relates generally to an implantable medical device for delivering a therapeutic agent to the body tissue of a patient, and a method for making such a medical device. In particular, the invention pertains to an implantable medical device, such as an intravascular stent, having a coating comprising a first coating composition comprising a therapeutic agent and, optionally, a polymer; and a second coating composition comprising a metallic material. | 12-20-2012 |
20130274618 | GUIDEWIRE SYSTEM FOR USE IN TRANSCATHETER AORTIC VALVE IMPLANTATION PROCEDURES - A guidewire system may include a tubular guidewire including at least one lumen and a plurality of apertures disposed through an outer wall, and at least one pressure wire slidably disposed within the at least one lumen, the at least one pressure wire having at least one pressure sensor disposed thereon. A method of measuring a blood pressure gradient across a treatment site may include advancing the tubular guidewire to the treatment site, positioning at least one aperture distal and at least one aperture proximal of the treatment site, translating the pressure wire within the tubular guidewire, positioning the pressure wire such that a distal pressure sensor is disposed adjacent the at least one aperture distal of the treatment site, and a proximal pressure sensor is disposed adjacent the at least one aperture proximal of the treatment site, and measuring a blood pressure gradient across the treatment site. | 10-17-2013 |
20130317534 | SUBINTIMAL RE-ENTRY CATHETER WITH AN EXPANDABLE STRUCTURE - A subintimal recanalization catheter assembly for recanalizing a blood vessel having an occlusion in a lumen thereof. The catheter assembly includes a hub assembly, a catheter shaft including inner and outer tubular members extending distally from the hub assembly, and an expandable structure mounted on a distal portion of the catheter shaft which is configured to be actuated between a collapsed configuration and an expanded configuration by longitudinal movement of the inner tubular member relative to the outer tubular member. The catheter assembly is configured to be advanced into a subintimal space between adjacent tissue layers of a wall of the blood vessel to facilitate reentry into the blood vessel lumen by advancing a penetration member distally out of the lumen of the inner tubular member and through the a tissue layer into the blood vessel lumen distal of the occlusion. | 11-28-2013 |
20140018833 | WIRE-GUIDED RECANALIZATION SYSTEM - A recanalization catheter assembly for recanalization of an occluded blood vessel is disclosed. The recanalization catheter assembly includes an elongate shaft having a tubular portion, a guide member, and a rotary ablation tool. The tubular portion includes a distal opening, from where the rotary ablation tool extends distally. The guide member extends distal of the distal opening and includes a guidewire lumen to receive a guidewire therethrough. The guide member is configured to advance over the guidewire in a subintimal space between a first tissue layer and a second tissue layer of a wall of the blood vessel, while the rotary ablation tool is advanced in a true lumen of the blood vessel. | 01-16-2014 |
20140018837 | SUBINTIMAL REENTRY SYSTEM - A subintimal recanalization catheter system for recanalizing a blood vessel. The system includes a support catheter and a balloon catheter configured to extend through the support catheter. The support catheter includes a tubular portion and an extension segment extending distal of the distal opening of the tubular portion. The balloon catheter, having a balloon secured to a distal portion thereof, is positionable through the tubular portion of the support catheter to position the balloon alongside the extension segment. The system is configured to be advanced into a subintimal space between a first tissue layer and a second tissue layer of a blood vessel wall where the balloon may be inflated against the extension segment to cause a distal portion of the catheter shaft of the balloon catheter to deflect toward the vessel lumen within the subintimal space to facilitate reentry into the vessel lumen. | 01-16-2014 |
20140018911 | Low Profile Heart Valve Delivery System and Method - A heart valve delivery system includes a low-profile catheter having an outer sheath, the outer sheath having therein a stent and a replacement heart valve. In an unemployed configuration, the stent is located distally to the replacement heart valve. Upon deployment, however, the stent and replacement heart valve are expanded and the replacement heart valve is situated within the stent. | 01-16-2014 |
20140018935 | COLLAPSIBLE CAGED-BALL PROSTHETIC VALVE FOR TRANSCATHETER DELIVERY AND METHOD OF USE - A valve that includes an expandable valve body defining a lumen and a longitudinally moveable obstructer retained within the lumen of the valve body between the proximal and distal ends of the valve when the valve is in an expanded configuration. The valve, in the collapsed configuration, is delivered to a native valve site by a catheter where the valve body is expanded to anchor the valve at the valve annulus and the collapsed obstructer is subsequently expanded so that the valve is in the expanded configuration. | 01-16-2014 |
20140025085 | CATHETER HAVING RADIALLY EXPANDABLE SHAFT - A catheter is disclosed, which is capable of delivering embolization beads for treating uterine fibroids. The elongate catheter shaft includes a radially expandable portion at its distal end, which can expand radially locally when an embolization bead passes through it. In some cases, the catheter shaft includes a non-expandable portion, with an inner diameter comparable to the bead diameter, between the handle and the radially expandable portion. In some cases, the radially expandable portion is made from a tubular braid, stretched longitudinally over a mandrel, and encased in a lubricious soft polymer while still stretched. In other cases, the radially expandable portion is made from a slotted nitinol tube, encased in a lubricious soft polymer below the nitinol transition temperature. The polymer is thick enough to prevent the encased element from returning to its unstretched diameter or a larger size above the transition temperature. | 01-23-2014 |
20140066915 | RENAL RF ABLATION SYSTEM WITH A MOVABLE VIRTUAL ELECTRODE AND RELATED METHODS OF USE - Tissue ablation devices and methods for using tissue ablation devices are disclosed. A tissue ablation device may include an elongate guide member having a distal section defined by a sidewall defining a lumen and having a plurality of openings. The distal section may have a helical shape in a released configuration. The tissue ablation device also may include an electrode having a distal end slideable within the distal section of the guide member. The electrode catheter may have an ablation element disposed thereon. | 03-06-2014 |
20140081243 | COLLARLESS GUIDE EXTENSION CATHETER - Embodiments of the disclosure describe an example guide extension catheter. The guide extension catheter may include a proximal shaft having a proximal end, a distal end, the distal end having an attachment region. The guide extension catheter may further include a distal sheath having a proximal end, a distal end and a lumen extending therebetween. The distal sheath may include an outer layer, inner layer and an intermediate reinforcing member disposed between the inner layer and the outer layer. Moreover, the distal sheath is attached to the attachment region adjacent to the reinforcing member. | 03-20-2014 |
20140114340 | ANTI-THROMBUS FEATURE FOR IMPLANTED MEDICAL DEVICES - A medical device for permanent implantation in a circulatory system of a patient may include an implant configured for percutaneous or minimally-invasive insertion into the patient, at least one connector fixedly attached to the implant and configured to releasably attach to a delivery device, the at least one connector being exposed to blood flow within the circulatory system following implantation, and an anti-thrombus feature configured to transition from an undeployed state to a deployed state. | 04-24-2014 |