| Patent application number | Description | Published |
|---|
| 20080319529 | Stent With Improved Mechanical Properties - A stent includes a central portion having a first waveform. The first waveform is wrapped around a longitudinal axis of the stent at a pitch to define a plurality of helical turns. The stent also includes an end segment connected to one end of the central portion. The end segment has a second waveform that includes a plurality of struts and a plurality of crowns. Each of the plurality of struts has a different length so that peaks of the crowns that define an end of the stent lie within a plane that is substantially perpendicular to the longitudinal axis. Cross-sectional areas of the struts having different lengths vary so that the struts move substantially uniformly during radial contraction and/or radial expansion of the stent. | 12-25-2008 |
| 20080319534 | Stent With Improved Mechanical Properties - A stent includes a central portion having a first waveform. The first waveform is wrapped around a longitudinal axis of the stent at a pitch to define a plurality of helical turns. The stent also includes an end segment connected to one end of the central portion. The end segment has a second waveform that includes a plurality of struts and a plurality of crowns. Each of the plurality of struts has a different length so that peaks of the crowns that define an end of the stent lie within a plane that is substantially perpendicular to the longitudinal axis. Cross-sectional areas of the struts having different lengths vary so that the struts move substantially uniformly during radial contraction and/or radial expansion of the stent. | 12-25-2008 |
| 20090248139 | Stent Prosthesis Having Select Flared Crowns - A generally tubular, cylindrical stent prosthesis has an unexpanded delivery configuration and an expanded configuration for contacting the vessel wall. The stent prosthesis has a plurality of adjacent stent struts, each stent strut having a wavelike or sinusoidal pattern of straight segments and crowns. A Y-shaped member is attached to one or more crowns to cause the crowns to flare outwardly at an angle from the cylindrical stent body when the stent is expanded. Upon expansion of the stent, the crown(s) having Y-shaped members attached thereto are angled with respect to the longitudinal axis and radially flare from the cylindrical stent body. The flared crowns anchor the stent within the vessel by protruding into the vessel wall and/or seating the stent within an ostium. | 10-01-2009 |
| 20090287290 | Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A delivery system for delivering a stented prosthetic heart valve to a lumen of a patient, the delivery system including a tubular body having a proximal end, a distal end, and a base portion with a plurality of extending elements, wherein each of the extending elements is engageable with a portion of a stent of a prosthetic heart valve. The delivery system further includes a sleeve having an inner area. The sheath is longitudinally moveable relative to the base portion from a first position where the inner area of the sleeve at least partially covers the extending elements of the base portion to a second position where the extending elements are not positioned within the inner area of the sleeve. | 11-19-2009 |
| 20100211153 | Retractable Drug Delivery System and Method - A system for treating a vascular condition includes a catheter having an inner member and an outer member, the outer member concentrically arranged about the inner member and a retractable drug delivery device disposed at a distal end of the inner member. A coating disposed on at least a portion of an outer surface of the retractable drug delivery device includes at least one therapeutic agent. | 08-19-2010 |
| 20100269950 | Apparatus and Method for Forming a Wave Form for a Stent From a Wire - An apparatus for forming a wave form for a stent from a wire includes a first forming member configured to move substantially parallel to a first axis and to move substantially parallel to a second axis that is orthogonal to the first axis, and a second forming member configured to move substantially parallel to the first axis and to move substantially parallel to the second axis. The second forming member is positioned opposite from the first forming member relative to the second axis along which the wire is configured to travel. The apparatus includes a controller configured to control movement of the first forming member relative to the wire and to control movement of the second forming member relative to the wire so that the first forming member and the second forming member deform the wire in opposite directions to form a portion of the wave form. | 10-28-2010 |
| 20110071620 | Methods for Forming an Orthogonal End on a Helical Stent - A method of manufacturing a stent includes forming a wave form having a plurality of struts and a plurality of crowns. Each crown connects two adjacent struts. The wave form has a central portion and two end portions located on opposite sides the central portion. Some of the struts located in the end portions have lengths longer and/or shorter than an average length of all of the struts of the wave form. The method includes wrapping the wave form about a longitudinal axis to define a plurality of turns so that an end turn is oriented at an angle relative to the longitudinal axis, a second turn is at a first pitch angle that is less than the angle that the end turn is disposed relative to the longitudinal axis, a third turn is at a second pitch angle that is less than the first pitch angle, and a fourth turn is at a third pitch angle that is less than the second pitch angle. | 03-24-2011 |
