Patent application number | Description | Published |
20110106128 | DELIVERY WIRE ASSEMBLY FOR OCCLUSIVE DEVICE DELIVERY SYSTEM - A delivery wire assembly for delivering an occlusive device to a location in a patient's vasculature, includes delivery wire conduit defining a conduit lumen, a core wire disposed in the conduit lumen, the core wire having a distal detachment zone, and an enhancing coil disposed around the distal detachment zone, the enhancing coil configured to transfer a distally directed force from the delivery wire assembly to objects located distal of the delivery wire assembly without damaging the distal detachment zone. In one embodiment, the enhancing coil includes a proximal section having a first diameter, a distal section having a diameter larger than the diameter of the proximal section, and a transition section connecting the respective proximal and distal sections, wherein the transition section flares radially in a distal direction. | 05-05-2011 |
20110118772 | DELIVERY WIRE ASSEMBLY FOR OCCLUSIVE DEVICE DELIVERY SYSTEM - A core wire of a delivery wire assembly for delivery of an occlusive device to a location in a patient's vasculature, includes a wire having a polyimide coating, with a polymer jacket disposed around the polyimide coating, and a hypotube disposed around the polymer jacket. The delivery wire assembly further comprises a delivery wire conduit including a coil disposed around the wire, wherein a proximal end of the coil is connected to a distal end of the hypotube. The polyimide coating may be enhanced with a nano-particle or micro-fiber ceramic, such as yttria-stabilized zirconia. | 05-19-2011 |
20110118776 | DELIVERY WIRE ASSEMBLY FOR OCCLUSIVE DEVICE DELIVERY SYSTEM - A delivery wire assembly for delivery of an occlusive device to a location in a patient's vasculature, the assembly having a distal end portion comprising a proximal rigid segment, a distal rigid segment, and a flexible segment disposed between the proximal and distal rigid segments. The assembly also has a delivery wire conduit having a proximal tubular portion coupled to a distal coil portion, the respective tubular and coil portions defining a conduit lumen. A plug is seated in the conduit lumen and secured to an interior surface of the delivery wire conduit. A core wire is disposed in the conduit lumen and having a distal end extending through the plug, so that the plug secures the core wire to the delivery wire conduit. The plug may form a substantially fluid tight seal of the conduit lumen. | 05-19-2011 |
20110245861 | VASO-OCCLUSIVE DEVICES - A vaso-occlusive device includes a coil having a proximal end and a distal end, wherein the coil comprises a helically wounded elongated member having a core and an outer layer, the outer layer being made from a metal or alloy, and has a stiffness that is different from a stiffness of the core. A vaso-occlusive device includes a first coil and a second coil, wherein the first and the second coils are coupled to each other such that at least one loop from the first coil is between two adjacent loops from the second coil, and wherein the first coil is made from a first material, and the second coil is made from a second material that is stiffer than the first material. A vaso-occlusive device includes an outer coil having a plurality of loops that define a lumen therethrough, and an inner coil located within the lumen of the outer coil, wherein the outer and inner coils are each made from a metal or an alloy, such as platinum or a platinum-tungsten alloy. | 10-06-2011 |
20120089174 | VASO-OCCLUSIVE DEVICE - A vaso-occlusive device includes an inner coil made from inner coil wire having a first diameter and formed from a first material, and an outer coil disposed at least partially around the inner coil and made from outer coil wire having a second diameter and formed from a second material. The inner coil has a first pitch and the outer coil has a second pitch. The first diameter, material, and pitch are different from the second diameter, material, and pitch, respectively. The outer coil defines a lumen and the inner coil is disposed at least partially in the lumen. The vaso-occlusive device also includes an intermediate layer disposed between the inner coil and the outer coil, where the intermediate layer includes a biocompatible metal or a biocompatible, swellable polymer. | 04-12-2012 |
20120209309 | VASO-OCCLUSIVE DEVICE - A vaso-occlusive device includes a first wire having a first cross-sectional geometry and a second wire having a second cross-sectional geometry, where the first cross-sectional geometry is different from the second cross-sectional geometry. The first wire may be wound to form a first coil, where the second wire is wound to form a second coil defining a lumen therein, and where the first coil is disposed at least partially in the lumen. The first wire and the second wire may be co-wound to form a single coil. | 08-16-2012 |
20120209310 | VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM - A vaso-occlusive device delivery system includes a delivery wire assembly having a core wire disposed in a delivery wire lumen, and a vaso-occlusive device having a tapered proximal end and defining a vaso-occlusive device lumen, wherein a tether is disposed in the lumen and secured to the core wire. A link may be attached to each of the core wire, the proximal end of the vaso-occlusive device, and the tether. Alternatively, the system may include a transition member attached to the vaso-occlusive device and secured to the core wire. | 08-16-2012 |
20120303053 | VASO-OCCLUSIVE DEVICES WITH IN-SITU STIFFENING - A vaso-occlusive device includes a first coil made from a first substantially non-expansile material, and a second coil at least partially co-wound with the first coil and made from a second expansile material. The second coil has a contracted state and an expanded state, in which the second coil expands radially and/or longitudinally. The vaso-occlusive device has increased stiffness when the second coil is in its expanded state. | 11-29-2012 |
20130066359 | VASO-OCCLUSIVE DEVICE - A vaso-occlusive device includes a coil made from coil wire, wherein the coil wire includes a core containing a core material having a first electrical potential covered by a coating containing a coating material having a second electrical potential, wherein the second electrical potential is less than the first electrical potential. A method of manufacturing a vaso-occlusive device includes cladding a core with a magnesium containing coating to form a wire, wrapping the wire around a mandrel to form a coil, and heat-setting the coiled wire. A method of occluding a body cavity with a vaso-occlusive device includes delivering the vaso-occlusive device to a body cavity and inducing a reduction reaction in the body cavity and adjacent the vaso-occlusive device, wherein the reduction reaction reduces infections and promotes cell proliferation in the body cavity. | 03-14-2013 |
20140277092 | VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM - A vaso-occlusive device delivery assembly includes a pusher assembly having proximal and distal ends, a conductive sacrificial link disposed at the distal end of the pusher assembly, and a vaso-occlusive device secured to the pusher assembly by the sacrificial link. The pusher assembly includes first and second conductors extending between the proximal and distal ends thereof. The sacrificial link is electrically coupled between the first and second conductors, such that the first conductor, sacrificial link and second conductor form an electrical circuit, and, when a disintegration current is applied through the sacrificial link through the first and second conductors, the sacrificial link thermally disintegrates, thereby releasing the attachment member and vaso-occlusive device from the pusher assembly. | 09-18-2014 |
20140277093 | VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM - A vaso-occlusive device delivery assembly includes a pusher assembly and a vaso-occlusive device detachably coupled to the pusher assembly by an attachment member is frictionally secured within a lumen of the pusher assembly. A heat generating member is disposed in the pusher assembly lumen, along with a pressure generating material, such that, when heat is generated by the heat generative device, the pressure generating material increases a pressure in the pusher assembly lumen, thereby dislodging the attachment member from the pusher assembly and detaching the vaso-occlusive device from the pusher assembly. | 09-18-2014 |
20140277094 | VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM - A vaso-occlusive device delivery assembly includes a pusher assembly having a proximal end, a distal end, and a pusher lumen extending therebetween; a vaso-occlusive device; and a tubular member mechanically connecting the pusher assembly to the vaso-occlusive device, the tubular member having a proximal end, a distal end, a tube lumen extending therebetween, and a detach zone, wherein the proximal end of the tubular member extends into the pusher assembly lumen at the distal end of the pusher assembly. A heat generating member is disposed in the tube lumen, such that, when activated, the heat generating member generates heat that melts or otherwise thermally degrades the tubular member at the detach zone, thereby detaching the vaso-occlusive device from the pusher assembly. | 09-18-2014 |
20150057700 | VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM - A vaso-occlusive delivery system includes a vaso-occlusive coil, delivery wire assembly, and a link. The vaso-occlusive coil defines a coil lumen and has first and second coil windings defining a coil opening therebetween. The delivery wire assembly defines a delivery wire lumen, and includes an electrolytic detachment zone, a delivery wire conduit, and a delivery wire attached to the delivery wire conduit and extending through the delivery wire lumen distal of the delivery wire conduit. The link defines a link lumen and has link body including a proximal end of the link body defines an link opening in communication with the link lumen and a distal end of the link body includes a link detent extending radially from the link body, through the coil opening, securing the link body and the delivery wire assembly to the vaso-occlusive coil. | 02-26-2015 |
Patent application number | Description | Published |
20090118705 | GUIDEWIRES WITH IMPROVED FATIGUE LIFE AND METHODS OF MAKING THE SAME - A medical device, such as a medical guidewire, having a portion including an inner zone of material and an outer peripheral zone of material surrounding the inner zone of material. The inner zone of material has a first coefficient of thermal expansion and the outer peripheral zone of material has a second coefficient of thermal expansion less than the first coefficient of thermal expansion, wherein at an operating temperature the outer peripheral zone of material opposes expansion of the inner zone of material such that the outer peripheral zone of material exerts a compressive stress on the inner zone of material. | 05-07-2009 |
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 |
20100048758 | LUBRICIOUS COATING COMPOSITION FOR DEVICES - Alternative coating compositions and/or methods of coating a medical device. Some examples include coating compositions comprising a polyester urethane and a polyether in a substantially aqueous carrier. The coating composition may be provided as a one or two part system and may be applied by a variety of coating methods, in some cases without a requirement for special equipment or undue industrial hygiene concerns. Additionally, methods of coating medical devices with substantially aqueous coating compositions and the resulting coated medical devices. The composition may be applied to all or part of a medical device by spraying, dipping, brushing, extruding, or the like. After the coating composition has been applied, the substantially aqueous carrier, including any attendant cosolvents or other volatile species, may be removed, typically by heating with optional enhanced air flow although simple evaporation at ambient conditions may also be used. | 02-25-2010 |
20100176095 | METHODS AND DESIGNS FOR FORMING JOINTS BETWEEN METALLIC MEMBERS - Disclosed are methods and structures for joining metallic members. A welding material can be used between two metallic members that comprise different metals. The different metals can normally form brittle intermetallic compounds when welded to one another, and the welding material can inhibit the formation of the brittle intermetallic compounds. | 07-15-2010 |
20110091639 | Medical Device Coating Configuration and Method for Improved Lubricity and Durability - Medical devices and methods for making and using the same. An example medical device includes a slotted tubular member and a coating disposed over the tubular member. The coating may define one or more coating gaps therein. | 04-21-2011 |
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 |
Patent application number | Description | Published |
20100268251 | DELIVERY WIRE FOR OCCLUSIVE DEVICE DELIVERY SYSTEM AND METHOD OF MANUFACTURE - A delivery wire assembly for delivery of an occlusive device to a location in a patient's vasculature includes a delivery wire conduit having a proximal tubular portion coupled to a distal coil portion, the respective tubular and coil portions defining a conduit lumen, a plug at least partially seated in the conduit lumen and coupled to an interior surface of the coil portion so as to form a substantially fluid tight seal of the conduit lumen, and a core wire disposed in the conduit lumen, the core wire having a distal end extending through the plug and coupled to an occlusive device | 10-21-2010 |
20100268252 | ELECTRICAL CONTACT FOR OCCLUSIVE DEVICE DELIVERY SYSTEM - A delivery wire assembly for delivery of an occlusive device to a location in a patient's vasculature includes a delivery wire conduit having a proximal tubular portion coupled to a distal coil portion, the respective tubular and coil portions defining a conduit lumen. A core wire is disposed in the conduit lumen and having a distal end coupled to an occlusive device, wherein an elongate electrical contact body at least partially seated in the conduit lumen and coupled to a proximal end of the core wire, the electrical contact body and the proximal tubular portion forming a junction. A coil collar is disposed around the electrical contact body near the junction | 10-21-2010 |
20130184743 | ELECTRICAL CONTACT FOR OCCLUSIVE DEVICE DELIVERY SYSTEM - A delivery wire assembly for delivery of an occlusive device to a location in a patient's vasculature includes a delivery wire conduit having a proximal tubular portion coupled to a distal coil portion, the respective tubular and coil portions defining a conduit lumen. A core wire is disposed in the conduit lumen and having a distal end coupled to an occlusive device, wherein an elongate electrical contact body at least partially seated in the conduit lumen and coupled to a proximal end of the core wire, the electrical contact body and the proximal tubular portion forming a junction. A coil collar is disposed around the electrical contact body near the junction | 07-18-2013 |
20140249570 | DELIVERY WIRE FOR OCCLUSIVE DEVICE DELIVERY SYSTEM - A delivery wire assembly for delivery of an occlusive device to a location in a patient's vasculature includes a delivery wire conduit having a proximal tubular portion connected to a distal coil portion, and a conduit lumen extending through the proximal tubular portion and the distal coil portion. The delivery wire assembly also includes a core wire disposed in the conduit lumen and having a distal end coupled to an occlusive device. The distal coil portion of the delivery wire assembly includes a plurality of zones and the plurality of zones decrease in stiffness distally along the length of the distal coil portion of the delivery wire assembly. | 09-04-2014 |