Patent application number | Description | Published |
20080200871 | Valve System For a Medical Device Having an Inflatable Member - Methods and apparatus for treating the interior of a blood vessel include a variety of improved catheter designs, methods and apparatus for accessing and occluding a blood vessel. | 08-21-2008 |
20080200873 | Methods and Apparatus for Infusing the Interior of a Blood Vessel - An apparatus for treating blood vessels includes an elongate body having a proximal end, a distal end, and an infusion lumen extending there-through, a plurality of infusion holes in valved communication with the infusion lumen, and a valve member which is movable inside the infusion lumen from a first position in which some of the infusion holes are blocked to a second position where fewer of the infusion holes are blocked. According to one embodiment, the valve member is a tube coaxially disposed inside the infusion lumen. According to a second embodiment, the valve member includes a seal coupled to a wire. When the wire is pulled, more holes are unsealed. In both embodiments, an inflatable occlusion balloon is coupled to the distal end of the apparatus and an inflation lumen extends from it to the proximal end of the device. A method of the invention includes determining the length of the blood vessel to be treated and adjusting the valve member to unblock a number of infusion holes corresponding to the length of the vessel to be treated. | 08-21-2008 |
20090204200 | Highly Flexible Stent and Method of Manufacture - Preferred embodiments of a stent with a high degree of flexibility are shown and described. The stent can include a continuous helical winding and at least one bridge. The continuous helical winding has a plurality of circumferential sections that circumscribe a longitudinal axis from a first end to a second end to define a tube. The circumferential sections are spaced apart along the axis. The at least one bridge is configured to connect one circumferential section to an axially-spaced adjacent circumferential section. The at least one bridge extends on a plane generally orthogonal with respect to the axis. | 08-13-2009 |
20110004290 | HIGHLY FLEXIBLE STENT AND METHOD OF MANUFACTURE - Preferred embodiments of a stent with a high degree of flexibility are shown and described. The stent can include a continuous helical winding having interconnected struts joined at vertices, and having bridges connecting sections of the helical winding to each other. An annular ring can be provided at one or both ends of the helical winding, and the annular ring can have five extensions extending to connect to the helical winding. One of the extensions can connect to a bridge and another extension can connect to a vertex. The struts at the ends of the helical winding can have strut lengths that differ from the strut lengths of the struts in a central portion of the winding between the ends of the winding. | 01-06-2011 |
20110166641 | HIGHLY FLEXIBLE STENT AND METHOD OF MANUFACTURE - Preferred embodiments of a stent with a high degree of flexibility are shown and described. The stent can include a continuous helical winding having interconnected struts joined at vertices, and having bridges connecting sections of the helical winding to each other. An annular ring can be provided at one or both ends of the helical winding, and the annular ring can have extensions extending to connect to the helical winding. One of the extensions can connect to a bridge and another extension can connect to a vertex. The struts at the ends of the helical winding can have strut lengths that differ from the strut lengths of the struts Po. in a central portion of the winding between the ends of the winding. | 07-07-2011 |
20130090719 | Highly Flexible Stent and Method of Manufacture - Preferred embodiments of a stent with a high degree of flexibility are shown and described. The stent can include a continuous helical winding having interconnected struts joined at vertices, and having bridges connecting sections of the helical winding to each other. An annular ring can be provided at one or both ends of the helical winding, and the annular ring can have five extensions extending to connect to the helical winding. One of the extensions can connect to a bridge and another extension can connect to a vertex. The struts at the ends of the helical winding can have strut lengths that differ from the strut lengths of the struts in a central portion of the winding between the ends of the winding. | 04-11-2013 |
20130090721 | Highly Flexible Stent and Method of Manufacture - Preferred embodiments of a stent with a high degree of flexibility are shown and described. The stent can include a continuous helical winding having interconnected struts joined at vertices, and having bridges connecting sections of the helical winding to each other. An annular ring can be provided at one or both ends of the helical winding, and the annular ring can have extensions extending to connect to the helical winding. One of the extensions can connect to a bridge and another extension can connect to a vertex. The struts at the ends of the helical winding can have strut lengths that differ from the strut lengths of the struts in a central portion of the winding between the ends of the winding. | 04-11-2013 |
20130338759 | Helical Stent Having Improved Flexibility and Expandability - A stent includes a central portion of helically wound undulations formed of struts, cylindrical end portions, and transition zones between the helical portion and the cylindrical portions. According to a first aspect of the invention, the torsional flexibility of the stent is maximized by having bridges connecting adjacent winding be interrupted by the maximum possible number of undulations. In one embodiment, each winding includes nineteen undulations around the circumference, bridges are provided every five undulations. According to a second aspect of the invention, uniform opening of the transition zone is achieved by altering the width, and thereby the flexibility, of a series of struts in accordance with their lengths. Specifically, the long transition zone struts are made wider. | 12-19-2013 |
20150039078 | HIGHLY FLEXIBLE STENT AND METHOD OF MANUFACTURE - Preferred embodiments of a stent with a high degree of flexibility are shown and described. The stent can include a continuous helical winding having interconnected struts joined at vertices, and having bridges connecting sections of the helical winding to each other. An annular ring can be provided at one or both ends of the helical winding, and the annular ring can have extensions extending to connect to the helical winding. One of the extensions can connect to a bridge and another extension can connect to a vertex. The struts at the ends of the helical winding can have strut lengths that differ from the strut lengths of the struts in a central portion of the winding between the ends of the winding. | 02-05-2015 |