Patent application number | Description | Published |
20100168834 | Delivery Device - A delivery device for deploying an expandable prosthesis and method of use thereof are described. The delivery device includes an outer sheath that is capable of retracting in a proximal direction and resheathing over the prosthesis in a distal direction. The device includes a drive pulley that can engage gears to retract or resheath the outer catheter in relation to the prosthesis. In some embodiments, the delivery device may include a reinforced outer sheath disposed over an inner elongate member, the reinforced outer sheath comprising a proximal section reinforced with a braid, a distal section reinforced with a coil and an overlapping section extending between the proximal section and the distal section. Additionally or alternatively, the delivery device may include a stabilizing element for releasably holding the stent to the inner catheter. | 07-01-2010 |
20110319980 | COVERED STENT - A covered stent having a selected arrangement of uncovered cells is provided. The uncovered cells are configured to provide a desired flexibility profile to the stent structure. In one preferred embodiment, the stent contains one or more circumferential rows of uncovered cells located between two or more circumferential rows of covered cells. In some embodiments, the stent may have a central body portion and one or more flanges where the circumferential rows of uncovered cells may be located within the flange(s). | 12-29-2011 |
20120041538 | COLLAPSING STRUCTURE FOR REDUCING THE DIAMETER OF A STENT END - A collapsing structure for collapsing the crowns of a stent and method of use thereof are described. The collapsing structure comprises an inner filament engaged to an outer filament. The outer filament is interwoven through at least a portion of the crowns of the stent end so as to create a plurality of loops. The inner filament is interwoven through at least a portion of the loops of the outer filament. Pulling on the inner filament causes the loops of the outer filament to be pulled radially inward, thereby pulling the crowns towards each other to collapse the stent end. | 02-16-2012 |
20120083871 | SOFT CROWNS - Soft crowns are provided for use in a medical device. Soft crowns may reduce the incidence of tissue perforations as a medical device engages a luminal wall. In certain embodiments, a soft crown may include a first strut and a second strut interconnected by an end portion. The end portion may include a third strut and a fourth strut that intersect to form a distal end of the soft crown. The first strut and the second strut may intersect other struts in the medical device to attach the crown thereto. The soft crown may bend or pivot about a plane defined by the intersections of the first strut and the second strut to the medical device. | 04-05-2012 |
20120158117 | Handle Control System for a Stent Delivery System - A control system for controlling movement of a medical device delivery system, a stent delivery system and a method for controlling movement of a medical device delivery system are provided. The control system includes a rotatable gear operably connected to a first movable member and a second movable member movable by the rotatable gear. The first movable member is operably connected to the first shaft and the second movable member operably connected to the second shaft. The first movable member moves the first shaft and the second movable member moves the second shaft to change a position of the first shaft relative to the second shaft and to change a configuration of a medical device operably connected to the first shaft and the second shaft. | 06-21-2012 |
20120172963 | DELIVERY DEVICE - A delivery device for deploying an expandable prosthesis and method of use thereof are described. The delivery device includes an outer sheath that is capable of retracting in a proximal direction and resheathing over the prosthesis in a distal direction. The device includes a drive pulley that can engage gears to retract or resheath the outer catheter in relation to the prosthesis. In some embodiments, the delivery device may include a reinforced outer sheath disposed over an inner elongate member, the reinforced outer sheath comprising a proximal section reinforced with a braid, a distal section reinforced with a coil and an overlapping section extending between the proximal section and the distal section. Additionally or alternatively, the delivery device may include a stabilizing element for releasably holding the stent to the inner catheter. | 07-05-2012 |
20120185031 | ROTARY AND LINEAR HANDLE MECHANISM FOR CONSTRAINED STENT DELIVERY SYSTEM - A stent delivery system and a method for implanting a stent are provided. The system includes an elongate shaft including a proximal portion, a distal portion, a lumen extending at least partially therethrough, and a stent-receiving portion on the distal shaft portion. The system also includes a stent positioned at the stent-receiving portion of the elongate shaft, the stent having a constrained configuration and an expanded configuration. Proximal and distal constraining members releasably connected to the stent and having a first position and a second position are also included. The proximal and distal constraining members cooperatively apply longitudinal tensile force to at least a portion of the stent with the proximal and distal constraining members each in the first position. A drive system configured to simultaneously move the proximal and distal constraining members is provided, including a threaded drive shaft in mechanical communication with a rotatable handle. | 07-19-2012 |
20130110221 | Stent with Inwardly-Directed Protrusion | 05-02-2013 |
20130138219 | BIODEGRADABLE STENTS HAVING ONE OR MORE COVERINGS - The present embodiments provide a medical device comprising a stent framework having proximal and distal regions and a lumen extending therebetween, and which comprises a biodegradable material. A first covering is coupled to at least a portion of an outer surface of the stent framework. When the stent framework is in an expanded deployed configuration, at least a portion of the first covering is disposed adjacent to a target site and fluid flows through the lumen of the stent framework. Further, the stent framework comprises a material that biodegrades a predetermined time after the first covering achieves at least partial remodeling at the target site. In various embodiments, one or more second coverings may be disposed adjacent to the first covering and comprise a material that biodegrades before the stent framework biodegrades. | 05-30-2013 |
20130289711 | Anti-Aspiration Valve - A prosthesis and a method for making a prosthesis for controlling flow through a bodily lumen are provided. The prosthesis includes a body having a proximal portion, a distal portion and a lumen extending therethrough and further includes a valve operably connected to the body. The valve has a distal end including a first portion of a surface of the valve lumen and a second portion of the surface that contact each other and form a seal in a closed configuration. The distal end of the valve is formed such that the first portion and the second portion of the surface of the valve lumen contact each other and the distal end is configured to open in response to a pressure that is greater than atmospheric pressure. | 10-31-2013 |
20140025158 | Implantable Medical Device Having a Sleeve - Implantable medical devices are described. For example, various implantable medical devices having a sleeve with differential wall thicknesses are described. An exemplary medical device comprises a frame and a sleeve that has a first configuration where the sleeve is in an extended position and a second configuration where the sleeve is in an inverted position. | 01-23-2014 |
20140031951 | Two-Way Valve - A medical device and a method for controlling flow through a bodily lumen are provided. The medical device includes a valve device positioned within the bodily lumen. The valve device includes a movable member movable within the bodily lumen and a magnetic portion operably connected to the movable member to facilitate positioning the movable member in a first configuration. The magnetic portion has a magnetic attraction to another magnetic portion or a portion of the valve device having a charge opposite a charge of the magnetic portion. The valve device is movable from the first configuration substantially closing the bodily lumen in the presence of a first pressure within the bodily lumen to a second configuration in response to a second pressure that is greater than the first pressure. The valve device is open in the second configuration and the movable member is normally positioned in the first configuration. | 01-30-2014 |
20140277371 | ATRAUMATIC STENT CROWNS - Methods and apparatuses of atraumatic stents with likely reduced rates of tissue perforation are provided. The stents of the invention have crowns with crown tips having apexes made of a radial force reducing material. The apexes are soft and flexible and reduce the radial force at the crown relative to the stent body allowing the crowns to collapse with greater ease compared to the central portion of the stent. | 09-18-2014 |
20150057741 | STENT DELIVERY DEVICE - A delivery assembly and methods for accurately positioning a stent within a body lumen are disclosed. The delivery assembly comprises a stent releasably attached to the distal end of an inner catheter. A handle at the proximal end of the assembly is operatively connected to the proximal end of an outer catheter and is configured for imparting axial movement to the outer catheter. A sheath is fixed to the handle or inner catheter and disposed about at least a portion of the outer catheter. The sheath comprises indicia visible to the user of the assembly to identify a particular measured distance from a selected point on the sheath to a selected point on one or more components of the delivery device. The inner catheter and sheath are fixed components that do not move relative to each other during axial movement of the outer catheter. | 02-26-2015 |