Patent application number | Description | Published |
20090062726 | MEDICAL IMPLANT DETACHMENT SYSTEMS AND METHODS - An implant assembly comprises an elongated pusher member, and an implantable device (e.g., a vaso-occlusive device) mounted to the distal end of the pusher member. The implant assembly further comprises an electrolytically severable joint disposed on the pusher member, wherein the implantable device detaches from the pusher member when the severable joint is severed, and a return electrode carried by the distal end of the pusher member (e.g., a coil disposed about the pusher member) in proximity to, but electrically isolated from, the severable joint. The implant assembly further comprises a terminal carried by the proximal end of the pusher member in electrical communication with the severable joint. | 03-05-2009 |
20090125054 | VASO-OCCLUSIVE COILS WITH NON-OVERLAPPING SECTIONS - A vaso-occlusive implant has a primary helical-coil shape that defines a primary axis and a three-dimensional secondary shape. The secondary shape includes a substantially helical section and a second section having a plurality of non-overlapping loops or loop sections. Each loop defines a plane that is oriented at an angle from about 30-150 degrees relative to a plane defined by an immediately preceding or immediately succeeding loop along the primary axis. The coil sections or loops can be generally circular loops or other smooth shapes. | 05-14-2009 |
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 |
20100063572 | Composite detachment mechanisms - Described herein are composite detachment mechanisms for implantable devices and assemblies comprising these devices. Also provided are methods of using the detachment mechanisms and assemblies. | 03-11-2010 |
20100106162 | FLEXIBLE EMBOLIC DEVICE DELIVERY SYSTEM - The present invention provides an embolic assembly delivery apparatus having superior flexibility characteristics at its distal end, that is, at the point of attachment of the embolic assembly to the delivery apparatus. It also provides a method of using the apparatus to deliver an embolic assembly to a target site in a patient's body. | 04-29-2010 |
20100137898 | Vaso-occlusive devices with attachment assemblies for stretch-resistant members - Disclosed herein are vaso-occlusive devices for forming occluding the vasculature of a patient. More particularly, disclosed herein are vaso-occlusive devices comprising an implantable device, an attachment assembly and a stretch-resistant member secured to the attachment assembly and to the implantable device. Also disclosed are methods of making and using these devices. | 06-03-2010 |
20100160944 | Thermally detachable embolic assemblies - Disclosed herein are vaso-occlusive assemblies for deploying implantable devices into the vasculature of a patient. More particularly, disclosed herein are vaso-occlusive assemblies comprising at least one thermally detachable polymer structure permanently attached to the implantable device and non-permanently attached to the delivery device prior to deployment. Also described are methods of making and using these assemblies. | 06-24-2010 |
20110118768 | OCCLUSIVE CINCHING DEVICES AND METHODS OF USE - Methods and devices for blocking orifices and occluding cavities within a patient are provided. The device in one variation comprises first and second tubular members attached to a collapsible sealing element. The device can be placed through an orifice and the collapsible sealing element can be collapsed to seal the orifice. An embolic may be introduced distal to the sealing element to occlude a cavity. The device may incorporate a locking mechanism which can be engaged to lock the sealing element into the collapsed position. The device may incorporate a valve to prevent flow through the tubular members, for example to prevent egress of the embolic from a cavity. The device can be detached to provide a permanent seal of the orifice, and can retain the embolic within the cavity. The device may be used in conjunction with a stent or other retention device to assist the sealing element in maintaining the seal. | 05-19-2011 |
20120271344 | MEDICAL IMPLANT DETACHMENT SYSTEMS AND METHODS - An implant assembly comprises an elongated pusher member, and an implantable device (e.g., a vaso-occlusive device) mounted to the distal end of the pusher member. The implant assembly further comprises an electrolytically severable joint disposed on the pusher member, wherein the implantable device detaches from the pusher member when the severable joint is severed, and a return electrode carried by the distal end of the pusher member (e.g., a coil disposed about the pusher member) in proximity to, but electrically isolated from, the severable joint. The implant assembly further comprises a terminal carried by the proximal end of the pusher member in electrical communication with the severable joint. | 10-25-2012 |
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 |
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 |
20150182226 | VASO-OCCLUSIVE COIL WITH BENDING SECTIONS - A vaso-occlusive device is formed from an elongate strand of material wound by a winding process into a helical coil having a length, wherein one or more discrete sections of the coil along its length were subjected to less mechanical stress or strain than a remainder of the coil during the winding process, such that each of the one or more discrete sections has a lower stiffness and greater flexibility than a respective stiffness and flexibility of the remainder of the coil, and such that each of the discrete one or more sections acts as a bending location along the length of the coil when the coil is delivered into an aneurysm. | 07-02-2015 |