Patent application number | Description | Published |
20090069878 | BIFURCATION POST-DILATATION BALLOON AND METHODS - A catheter assembly includes a balloon member and a balloon restricting arrangement. The balloon member includes a proximal portion, a distal portion and a circumferential bulge portion. The circumferential bulge portion extends around a circumference of the balloon member and is positioned at a location between the proximal and distal portions of the balloon member. The balloon restricting arrangement includes a proximal portion extending around the proximal portion of the balloon member and a distal portion extending around the distal portion of the balloon member to restrict an inflated size of the proximal and distal portions of the balloon member. The proximal and distal portions of the balloon restricting arrangement are spaced apart axially, and the circumferential bulge portion extends radially outward therebetween. The circumferential bulge portion inflates to a maximum inflated dimension that is greater than an inflated dimension of the proximal and distal portions of the balloon restricting arrangement. | 03-12-2009 |
20090177261 | Detachment mechanisms for implantable devices - Disclosed herein are detachment mechanisms for vaso-occlusive devices that allow for rapid operator-controlled release of the vaso-occlusive device into the selected site. Also disclosed are vaso-occlusive assemblies comprising these detachment mechanisms and methods of using these detachment mechanisms and vaso-occlusive assemblies. | 07-09-2009 |
20090299455 | Rotatable catheter assembly - Embodiments of the present disclosure include methods and systems for a catheter assembly including a catheter shaft, a balloon positioned on the catheter shaft, where the balloon has a first balloon waist, a first lead extending longitudinally through the catheter shaft, and a first sealing member adjacent the first balloon waist and coupled to the first lead, where the first lead can provide electrical current to reversibly transition the first sealing member from a nonactivated state to an activated state in response to a temperature change in the first sealing member, and where at least a portion of the balloon rotates relative the catheter shaft in the nonactivated state and the first sealing member engages the first balloon waist to form a fluid tight seal and to prevent rotation of the balloon relative the catheter shaft in the activated state. | 12-03-2009 |
20100022950 | CATHETER HAVING ELECTRICALLY CONDUCTIVE PATHWAYS - Medical devices having electrically conductive pathways are disclosed. More particularly, the disclosure is directed to catheter shafts including an electrically conductive wire embedded in a polymeric tube. The disclosure is also directed to catheter shafts including an electrically conductive media coextruded in a polymeric tube. The disclosure is also directed to catheter shafts including electrically conductive pathways formed with electrically conductive ink, paste, adhesive and/or epoxy. | 01-28-2010 |
20100298923 | ROTATABLE CATHETER ASSEMBLY - Embodiments of the present disclosure include methods and systems for a catheter assembly including a catheter shaft, a balloon positioned on the catheter shaft, where the balloon has a first balloon waist, a first lead extending longitudinally through the catheter shaft, and a first sealing member adjacent the first balloon waist and coupled to the first lead, where the first lead can provide electrical current to reversibly transition the first sealing member from a nonactivated state to an activated state in response to a temperature change in the first sealing member, and where at least a portion of the balloon rotates relative the catheter shaft in the nonactivated state and the first sealing member engages the first balloon waist to form a fluid tight seal and to prevent rotation of the balloon relative the catheter shaft in the activated state. | 11-25-2010 |
20120209176 | BALLOON CATHETER - Medical devices and methods for making and using the same are disclosed. An example medical device may include a fixed wire balloon catheter. An example fixed wire balloon catheter may include a core wire. An inner tubular member may be attached to the core wire. The inner tubular member may have a plurality of slots formed therein. A catheter shaft may be disposed about the inner tubular member. An inflation lumen may be defined between the catheter shaft and the core wire. A balloon may be coupled to the catheter shaft. The balloon may have a distal portion. A crossing tip may be coupled to the distal portion of the balloon. | 08-16-2012 |
20130072957 | SUBINTIMAL RE-ENTRY CATHETER AND RETROGRADE RECANALIZATION - A catheter for recanalizing a blood vessel having an occlusion therein via a subintimal pathway. The catheter includes a catheter shaft having an inflatable balloon mounted to the distal end portion of the catheter shaft. A flexible tubular member extends from the catheter shaft and along an exterior of the inflatable balloon. Inflation of the inflatable balloon deflects the flexible tubular member into a deflected configuration away from a longitudinal axis of the catheter shaft to effect re-entry into the true lumen distal of the occlusion. | 03-21-2013 |
20130090631 | MEDICAL DEVICE DELIVERY APPARATUS - The disclosure pertains to apparatus for intravascular delivery of medical devices past a juncture which requires an abrupt change of direction and methods of use therefor. The apparatus employs a directing element which deflects the medical device from an initial path to a second path. In some embodiments, the apparatus comprises more than one directing element and may be capable of redirecting by deflection more than one medical device. | 04-11-2013 |
20130103075 | EMBOLIC DEBRIS DEFLECTOR - The disclosure pertains to debris diverters for use within the aorta and methods of diverting or redirecting emboli and other debris away from the carotid arteries to prevent cerebral embolization. The disclosure includes aortic diverters positionable in the ascending aorta in order to divert embolic material of all sizes away from the carotid arteries, thereby washing emboli downstream into the thoracic and peripheral vasculature. The debris diverters of the disclosure are adapted to be placed in the ascending and transverse aorta via the left subclavian artery in order to divert embolic material away from the carotid arteries and methods of use therefor. | 04-25-2013 |
20130110153 | EXTENDED PROTECTION EMBOLIC FILTER | 05-02-2013 |
20130144328 | EXPANDING DISTAL SHEATH WITH COMBINED EMBOLIC PROTECTION - A medical device may include an elongate shaft having a distal end portion and a balloon disposed at least partially within the distal end portion. The distal end portion may be configured to selectively expand from a collapsed delivery configuration to a distally-opening expanded filtering configuration. A method of deploying a medical device may include obtaining an elongate shaft having a distal end portion and a balloon disposed at least partially within the distal end portion, advancing the elongate shaft through a vessel to a treatment site, disposing at least a portion of the balloon within the treatment site with the distal end of the elongate shaft positioned adjacent the treatment site, at least partially inflating the balloon, thereby expanding the distal end portion, and deflating the balloon and subsequently performing a procedure with the distal end of the elongate shaft positioned within the vessel adjacent to the treatment site. | 06-06-2013 |
20130150881 | VALVULOPLASTY DEVICE - A medical device may include an elongate shaft having a plurality of elongated balloons disposed at a distal end including a first balloon, a second balloon, and a third balloon, a manifold disposed at a proximal end of the elongate shaft in fluid communication with the plurality of balloons, and a distal tip disposed distal of the plurality of balloons, the distal end of each balloon being joined together by the distal tip. A medical device may include an elongate shaft having a plurality of elongated balloons disposed at a distal end including a first opposing pair and a second opposing pair, a manifold disposed at a proximal end of the elongate shaft in fluid communication with the plurality of balloons, and a distal tip disposed distal of the plurality of balloons, the distal end of each balloon being joined together by the distal tip. | 06-13-2013 |
20130165921 | DEVICE AND METHODS FOR NERVE MODULATION - The disclosure pertains to an intravascular system for nerve modulation through a wall of a blood vessel and methods of use therefor, wherein the system is capable of nerve modulation by one or more ablations of a blood vessel adjacent to the nerve to be modulated. The intravascular system is suited for modulation of renal nerves. | 06-27-2013 |
20130172872 | DEVICE AND METHODS FOR NERVE MODULATION USING A NOVEL ABLATION CATHETER WITH POLYMERIC ABLATIVE ELEMENTS - The disclosure pertains to an intravascular catheter for nerve modulation, comprising an elongate member having a proximal end and a distal end, a balloon having a lumen and a balloon wall, the balloon wall comprising RF permeable sections and non-electrically conductive sections, an electrode disposed within the balloon and extending distally to the furthest distal RF permeable section. The RF permeable sections may comprise a plurality of RF permeable windows, each window having a greater circumferential dimension than an axial dimension. The intravascular system is suited for modulation of renal nerves. | 07-04-2013 |
20130172879 | RENAL NERVE MODULATION MEDICAL DEVICES - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a renal nerve modulation device. The renal nerve modulation device may include an elongate shaft having proximal region and a distal region. An ablation member may be coupled to the distal region. The distal region may have a distal inner diameter. The proximal region may have a proximal inner diameter that is smaller than the distal inner diameter. A ribbon may be disposed within the distal region of the shaft. The ribbon may have a proximal end and a distal end. The proximal end of the ribbon may extend into the proximal region of the shaft. The distal end of the ribbon may be disposed adjacent to or otherwise coupled to the ablation member. | 07-04-2013 |
20130197483 | GUIDE EXTENSION CATHETER - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include a push member having a proximal portion with a proximal stiffness, a distal portion with a distal stiffness different from the proximal stiffness, and a transition portion disposed between the proximal portion and the distal portion. The transition portion may provide a smooth transition between the proximal stiffness and the distal stiffness. The push member may have a first outer diameter. A distal tubular member may be attached to the push member. The distal tubular member may have a second outer diameter larger than the first outer diameter. | 08-01-2013 |
20130204184 | KERSTPIEK TIP FOR MEDICAL DEVICES - An apparatus may include a medical device including an elongate shaft disposed about a guidewire, and a distal tip including a plurality of rounded protrusions, wherein adjacent protrusions are fixed directly to each other by a discrete, relatively flexible connector. The plurality of protrusions may each decrease in size from a proximalmost protrusion distally to distalmost protrusion. | 08-08-2013 |
20130231658 | EXPANDABLE ABLATION DEVICE AND METHODS FOR NERVE MODULATION - Medical devices for nerve modulation through the wall of a blood vessel are disclosed. The medical device may include an elongate member having a proximal end and a distal end. A hollow ablation member may be disposed at the distal end of the elongate member and includes a number of electrodes positioned on its outer surface. The ablation member may be configured to shift between a collapsed position and an expanded position such that that a portion of the ablation member can be brought into contact with the wall of the blood vessel or placed adjacent to the wall of the blood vessel. The ablation member may also be retractable from the blood vessel treatment site. | 09-05-2013 |
20130245622 | EXPANDABLE ELECTRODE DEVICE AND METHODS FOR NERVE MODULATION - Embodiments of the disclosure provide an ablative system for nerve modulation through wall of a blood vessel. The ablative catheter system includes an elongate member having a proximal end and a distal end, a number of electrode elements, an expansion mechanism. The electrode elements are finger-like structures mounted at their proximal ends for pivotal rotation radially outward from the longitudinal axis of the elongate member from a collapsed state. Each electrode element having inner and an outer surface with an electrode portion connected to a source of electrical energy and an insulated portion and a slope surface forming the proximal portion of the inner surface, sloping outward from the longitudinal axis of the elongate member, and a tip portion at the distal portion of the inner surface, angled toward the longitudinal axis of the elongate member. The electrode element inner surfaces in the collapsed state define a central cavity. | 09-19-2013 |
20130274730 | ABLATION CATHETER AND METHODS FOR NERVE MODULATION - Ablative catheters and methods for making and using the same are disclosed. The catheter may have a proximal end, a distal end, and a first lumen extending at least partially between the proximal and distal ends. The catheter may include at least one ablative port located adjacent to the distal end of the catheter. The catheter may include an ablative mechanism capable of ablation using an conductive fluid circulated to the ablative port through the first lumen. An expandable member may be disposed at an outer surface of a distal portion of the catheter. The expandable member may be capable of switching between a collapsed position and an expanded position using an expansion fluid circulated to the expandable member through a second lumen. In the expanded position, the expandable member may be sized and shaped to position the ablative port at a suitable distance from a wall of the vessel. | 10-17-2013 |
20130274731 | HELICAL TUBING DEVICES AND METHODS FOR FLUID RENAL NERVE MODULATION - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a catheter shaft having a proximal end, a distal portion, and a lumen formed therein. The distal portion may be capable of shifting between a first configuration and a second helical configuration. The distal portion may have a plurality of fluid ports formed therein. An electrode may be disposed within the lumen. The electrode may be capable of transmitting energy through the plurality of fluid ports. | 10-17-2013 |
20130274737 | RENAL NERVE MODULATION CATHETER DESIGN - System for nerve modulation and method for making and using the same are disclosed. An example system may include an elongate shaft having a proximal end region, a deflectable distal end region and a lumen extending to the deflectable distal end region. The deflectable distal end region may include an electrode surrounded by a permeable membrane. The permeable membrane may be fluidly connected to the lumen. | 10-17-2013 |
20130304052 | RENAL NERVE MODULATION DEVICES - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a renal nerve modulation device. The renal nerve modulation device may include an elongate shaft. A balloon may be coupled to the shaft. The balloon may have a hydrophilic electrode region. A sensor may be coupled to the balloon and may be disposed adjacent to the hydrophilic electrode region. An electrode may be coupled to the catheter shaft and may be disposed within the balloon. | 11-14-2013 |
20140012281 | EXPANDABLE GUIDE EXTENSION CATHETER - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include a proximal member having a proximal outer diameter. A distal sheath member may be attached to the proximal member. The distal sheath member may have a distal outer diameter greater than the proximal outer diameter. The distal sheath member may have a proximal end, a distal end, and a longitudinal slit extending at least partially between the proximal end and the distal end. An expandable member may be attached to the distal sheath member and may extend along the longitudinal slit. The expandable member may be configured to shift between a first configuration and an expanded configuration. | 01-09-2014 |
20140018773 | GUIDE EXTENSION CATHETER - Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a guide extension catheter. The guide extension catheter may include a proximal member having a proximal outer diameter. A distal sheath member may be attached to the proximal member. The distal sheath member may have a proximal sheath portion and a distal sheath portion. The proximal sheath portion may have an outer diameter greater than the proximal outer diameter. The proximal sheath portion may have a first cross-sectional profile. The distal sheath portion may have a second cross-sectional profile different from the first cross-sectional profile. | 01-16-2014 |
20140018794 | OFF-WALL ELECTRODE DEVICES AND METHODS FOR NERVE MODULATION - Systems for nerve modulation are disclosed. An example system for nerve modulation may include a catheter shaft having a proximal end, a distal end and lumen extending therebetween. An inflatable member may be fluidly connected to the lumen of the catheter shaft proximate the distal end of the catheter shaft. The inflatable member may have an outer wall defining a groove in an outer surface of the inflatable member. An electrode may be disposed in or under the groove. | 01-16-2014 |
20140039461 | GUIDE EXTENSION CATHETERS AND METHODS FOR MANUFACTURING THE SAME - Guide extension catheters and methods of manufacturing and using guide extension catheters are disclosed. An example guide extension catheter may include a distal sheath having a proximal opening, a distal opening, and a central lumen extending therebetween. The guide extension catheter may also include a proximal shaft having an outer diameter smaller than an outer diameter of the distal sheath, the proximal shaft including a distal opening. The guide extension catheter may also include a coupling member for securing the distal sheath to the proximal shaft. The coupling member may include a distal portion attached to the distal sheath and a proximal portion disposed within the distal opening of the proximal shaft. | 02-06-2014 |
20140100562 | RENAL NERVE MODULATION DEVICES AND METHODS - Systems for nerve and tissue modulation are disclosed. An example system may include an intravascular nerve modulation system including an elongated shaft having a proximal end region and a distal end region. The system may further include one or more ablation electrodes affixed to the distal end region of the elongated shaft. One or more ground pad electrodes may be provided and connected to a processor configured to modulate the impedance of each circuit completed between the ablation electrodes and the ground pads. | 04-10-2014 |
20140100585 | MEDICAL DEVICE HAVING AN ELECTRO-MAGNETIC DEVICE TIP AND RELATED METHOD OF USE - A medical device may include an elongate shaft having a longitudinal axis and a distal end. The medical device may include a distal tip having at least one electromagnetic coil disposed adjacent the distal end and a plurality of bulbous elements disposed about the longitudinal axis. The plurality of bulbous elements may be operatively associated with the at least one electromagnetic coil such that the plurality of bulbous elements may translate relative to the longitudinal axis in response to activation of the at least one electromagnetic coil. A method of crossing an obstruction may include approaching the obstruction with a medical device, supplying alternating current to at least one electromagnetic coil, and advancing the medical device into engagement with the obstruction. | 04-10-2014 |
20140100597 | SPECIAL OPENING AORTIC EMBOLIC PROTECTION DEVICE FOR STRUCTURAL HEART PROCEDURES - A medical device may include an embolic protection device including a distal filter element, a proximal filter element, and a deflector element disposed between and spacing apart the distal filter element and the proximal filter element. An embolic protection device may include a longitudinally-oriented mouth extending from the distal filter element to the proximal filter element. A method of providing embolic protection in an aortic arch may include inserting a guidewire from a left subclavian artery through the aortic arch into a brachiocephalic artery, deploying a distal filter element within the brachiocephalic artery such that a mouth overlies an ostium of the brachiocephalic artery, deploying a deflector element over an ostium of a carotid artery disposed between the brachiocephalic artery and the left subclavian artery, and deploying a proximal filter element within the left subclavian artery such that a mouth overlies an ostium of the left subclavian artery. | 04-10-2014 |
20140249508 | GUIDE EXTENSION CATHETER WITH A RETRACTABLE WIRE - Embodiments of the present disclosure describe a guide extension catheter with a retractable wire. The guide extension catheter may include a proximal shaft having a first outer diameter. The guide extension catheter may further include a distal sheath attached to the proximal shaft and having a second outer diameter greater than the first outer diameter. Further, the distal sheath may have a central lumen defined therein and a secondary lumen formed along a wall surface of the distal sheath. | 09-04-2014 |
20140257180 | KERSTPIEK TIP FOR MEDICAL DEVICES - An apparatus may include a medical device including an elongate shaft disposed about a guidewire, and a distal tip including a plurality of rounded protrusions, wherein adjacent protrusions are fixed directly to each other by a relatively flexible connector. The plurality of protrusions may decrease in size from a proximalmost protrusion distally to distalmost protrusion. | 09-11-2014 |
20140277010 | VIBRATION AND INERTIA ENHANCED ATHERECTOMY - An atherectomy device is disclosed herein. The atherectomy device includes a first drive shaft, a second drive shaft, a handle assembly, and a cutting member. The first drive shaft extends distally from the handle assembly and includes the cutting member mounted on a distal end region of the first drive shaft. The second drive shaft extends distally from the handle assembly to a distal end of the second drive shaft such that both the first and the second drive shafts are rotatable relative to the handle assembly, and the first drive shaft is rotatable independent of the second drive shaft. | 09-18-2014 |
20150073522 | ENDOPROSTHESIS DEVICES INCLUDING BIOSTABLE AND BIOABSORABLE REGIONS - Some embodiments are directed to medical devices, and methods for making and using the medical devices. An exemplary endoprosthesis includes an expandable tubular framework having a proximal end, a distal end, and a lumen extending therethrough. The tubular framework includes a number of interconnected biostable struts. The tubular framework has a proximal region extending distally from the proximal end to an intermediate location, and a distal region extending proximally from the distal end to the intermediate location. The distal region of the tubular framework is more flexible than the proximal region. | 03-12-2015 |