Patent application number | Description | Published |
20090012602 | System and method for endoluminal grafting of bifurcated and branched vessels - A system and method for endoluminal grafting of a main anatomic conduit in its diseased state in which it dilates to pose a life threatening condition and its various conduits that emanate from the main anatomic conduit. The grafting system comprises an endoaortic graft having at least one opening therein and at least one branch graft that is passable through the opening of the endoaortic graft into the branch anatomic conduit(s) such that the junction between the branch graft and the endoaortic graft is substantially fluid tight. A system and method for delivery of the endoaortic graft and also a system and method for efficient alignment and deployment of the branch (e.g., side branch) graft such that the coupling of the branch graft with the endoaortic graft is efficient and exact and fluid-tight; and a system and method for coupling the branch to the endoaortic graft via a coupling mechanism employing a memory metal alloy; a system and method for the proper and exact alignment of the endoaortic graft and the branch using magnetic force of a suitable nature, and which does not use the magnetic force as the coupling mechanism. | 01-08-2009 |
20090216314 | Balloon-Expandable, Self-Expanding, Vascular Prosthesis Connecting Stent - An expandable vascular stent includes an m×n array of ovals formed in a cylinder, m being the number of columns of ovals in the circumferential direction and n being the number of rows of ovals in the axial direction, and a plurality of prongs extending inwardly from the outer ends of respective ovals in rows 1 and n of the m×n array, and being arranged in facing pairs extending from axially-aligned ovals. The cylinder is expandable from an initial diameter to a pre-determined final diameter, wherein an increase in the diameter of the stent results in a substantial decrease in the length of the stent. The tube and the prongs can be made of surgical stainless steel, the tube being expandable using an angioplasty balloon; or the tube and the prongs can be made of a memory metal and the tube is self-expanding. | 08-27-2009 |
20090306768 | PERCUTANEOUS VALVE PROSTHESIS AND SYSTEM AND METHOD FOR IMPLANTING SAME - A heart valve prosthesis includes a cylindrical valve cage stent constructed to be implanted percutaneously in the planar axis of a native valve annulus, an elastic and compressible, multi-leaflet valve insertable percutaneously into the body, and an attachment mechanism for attaching the valve to the superior rim of the valve cage stent. The valve can be of a bi-leaflet or a tri-leaflet type and includes a valve frame made from a memory metal and a tissue cover attached to the valve frame. The valve cage stent is self-expanding or balloon expandable, made respectively from memory metal or stainless steel but otherwise structurally the same. | 12-10-2009 |
20100082089 | DELIVERY SYSTEM FOR VASCULAR IMPLANT - A medical treatment system and method of treatment is described having an implant that can be positioned and deployed, then undeployed to allow repositioning of the implant. The system includes a self-expanding medical implant that longitudinally foreshortens upon radially expanding from a radially compacted state, a distal interface configured to attach the implant to a distal mount of a delivery device, and a proximal interface configured to attach the implant to a proximal mount of the delivery device. Moving the distal mount longitudinally away from the proximal mount applies a longitudinal tension to the implant causing the implant to expand longitudinally and contract radially, and moving the distal mount toward the proximal mount reduces a longitudinal tension in the implant allowing the implant to expand radially toward a fully expanded state. | 04-01-2010 |
20100082094 | HEART VALVE - A heart valve includes a valve body made of a flexible material such as pericardium. The valve body is made of two layers of material, an outer layer, and an inner layer that defines a plurality of leaflets. The leaflets of the inner layer are attached to the outer layer. In some embodiments the valve body is made by cutting a single piece of flat source tissue, folding the cut tissue and forming it into a tubular pattern having the inner and outer layers. The multi-layer valve body can be mounted on a stent for delivery within a patient's heart. | 04-01-2010 |
20100298931 | VASCULAR IMPLANT AND DELIVERY SYSTEM - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant is verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 11-25-2010 |
20110313515 | REPLACEMENT HEART VALVE - A replacement heart valve can have an expandable frame configured to engage a native valve annulus. A valve body can be mounted onto the expandable frame to provide functionality similar to a natural valve. The valve body has an upstream end and a downstream end, and a diameter at the downstream end is greater than a diameter at the upstream end. | 12-22-2011 |
20120078353 | REPLACEMENT HEART VALVES, DELIVERY DEVICES AND METHODS - A replacement heart valve and method of treating valve insufficiency includes an expandable frame configured to engage a native valve annulus. A valve body is coupled to the frame. The valve body can include a leaflet portion and possibly a skirt portion. A portion of the frame has a foreshortening portion configured to longitudinally expand when urged to a radially compacted state and longitudinally contract when urged to a radially expanded state. In one embodiment the valve skirt is attached to the frame so that it can adapt to changes in the length of the frame. A delivery device in some embodiments can use one or more coverings, such as sheaths, to controllably release the replacement heart valve at a native heart valve. | 03-29-2012 |
20120179239 | VASCULAR PROSTHESIS CONNECTING STENT - An expandable vascular stent includes an m 3 n array of ovals formed in a cylinder, m being the number of columns of ovals in the circumferential direction and n being the number of rows of ovals in the axial direction, and a plurality of prongs extending inwardly from the outer ends of respective ovals in rows 1 and n of the m 3 n array, and being arranged in facing pairs extending from axially-aligned ovals. The cylinder is expandable from an initial diameter to a pre-determined final diameter, wherein an increase in the diameter of the stent results in a substantial decrease in the length of the stent. The tube and the prongs can be made of surgical stainless steel, the tube being expandable using an angioplasty balloon; or the tube and the prongs can be made of a memory metal and the tube is self-expanding. | 07-12-2012 |
20120215303 | REPLACEMENT HEART VALVE AND METHOD - A replacement heart valve has an expandable frame configured to engage a native valve annulus and a valve body mounted to the expandable frame. The valve body can have a plurality of valve leaflets configured to open to allow flow in a first direction and engage one another so as to close and prevent flow in a second direction, the second direction being opposite the first direction. | 08-23-2012 |
20130110227 | DELIVERY SYSTEM FOR VASCULAR IMPLANT | 05-02-2013 |
20130131788 | BODY CAVITY PROSTHESIS - A prosthesis can be configured to be deployed within a body cavity. The prosthesis has an expandable frame, a plurality of proximal anchors, and a plurality of distal anchors, where the various anchors are connected to the frame. Radial expansion of the frame can cause the ends of the proximal anchors and the ends of the distal anchors to draw closer together. | 05-23-2013 |
20130131793 | REPLACEMENT HEART VALVE AND METHOD - A heart valve includes a valve body made of a flexible material such as pericardium. The valve body is made of two layers of material, an outer layer, and an inner layer that defines a plurality of leaflets. The leaflets of the inner layer are attached to the outer layer. In some embodiments the valve body is made by cutting a single piece of flat source tissue, folding the cut tissue and forming it into a tubular pattern having the inner and outer layers. The multi-layer valve body can be mounted on a stent for delivery within a patient's heart. | 05-23-2013 |
20130138203 | Prosthesis having a plurality of distal and proximal prongs - An expandable vascular stent includes an m×n array of ovals formed in a cylinder, m being the number of columns of ovals in the circumferential direction and n being the number of rows of ovals in the axial direction, and a plurality of prongs extending inwardly from the outer ends of respective ovals in rows 1 and n of the m×n array, and being arranged in facing pairs extending from axially-aligned ovals. The cylinder is expandable from an initial diameter to a pre-determined final diameter, wherein an increase in the diameter of the stent results in a substantial decrease in the length of the stent. The tube and the prongs can be made of surgical stainless steel, the tube being expandable using an angioplasty balloon; or the tube and the prongs can be made of a memory metal and the tube is self-expanding. | 05-30-2013 |
20130138207 | VASCULAR IMPLANT AND DELIVERY SYSTEM - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 05-30-2013 |
20130144378 | METHOD OF SECURING AN INTRALUMENAL FRAME ASSEMBLY - A replacement heart valve has an expandable frame configured to engage a native valve annulus and a valve body mounted to the expandable frame. The valve body can have a plurality of valve leaflets configured to open to allow flow in a first direction and engage one another so as to close and prevent flow in a second direction, the second direction being opposite the first direction. | 06-06-2013 |
20130144380 | VASCULAR IMPLANT AND DELIVERY SYSTEM - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 06-06-2013 |
20130144381 | REPLACEMENT HEART VALVES, DELIVERY DEVICES AND METHODS - A replacement heart valve and method of treating valve insufficiency includes an expandable frame configured to engage a native valve annulus. A valve body is coupled to the frame. The valve body can include a leaflet portion and possibly a skirt portion. A portion of the frame has a foreshortening portion configured to longitudinally expand when urged to a radially compacted state and longitudinally contract when urged to a radially expanded state. In one embodiment the valve skirt is attached to the frame so that it can adapt to changes in the length of the frame. A delivery device in some embodiments can use one or more coverings, such as sheaths, to controllably release the replacement heart valve at a native heart valve. | 06-06-2013 |
20130184813 | BODY CAVITY PROSTHESIS - A prosthesis can be configured to be deployed within a body cavity. The prosthesis has an expandable frame, a plurality of proximal anchors, and a plurality of distal anchors, where the various anchors are connected to the frame. Radial expansion of the frame can cause the ends of the proximal anchors and the ends of the distal anchors to draw closer together. | 07-18-2013 |
20140172085 | VASCULAR IMPLANT - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 06-19-2014 |
20140172086 | VASCULAR IMPLANT AND DELIVERY SYSTEM - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 06-19-2014 |
20140277390 | PROSTHESIS FOR ATRAUMATICALLY GRASPING INTRALUMENAL TISSUE AND METHODS OF DELIVERY - A prosthesis can comprise an expandable frame, a plurality of distal anchors and a plurality of proximal anchors. The anchors can extend outwardly from the frame. The frame can be configured to radially expand and contract for deployment within a body cavity. The frame and anchors can have one of many different shapes and configurations. For example, when the frame is in an expanded configuration, the proximal anchors can extend a significant distance away from the exterior of the frame, such as a length equal to or greater than about one half the diameter of the frame. As another example, the anchors can have looped ends. | 09-18-2014 |
20140277422 | PROSTHESIS WITH OUTER SKIRT - A prosthesis can be configured to grasp intralumenal tissue when deployed within a body cavity and prevent axial flow of fluid around an exterior of the prosthesis. The prosthesis can include an expandable frame configured to radially expand and contract for deployment within the body cavity, and an outer skirt positioned annularly around an exterior of the expandable frame. In some embodiments, the outer skirt can extend outward from the frame and be secured to an outwardly extending anchor on the frame to create an axial barrier to fluid flow exterior to the frame when deployed within the body cavity. | 09-18-2014 |
20140277427 | PROSTHESIS FOR ATRAUMATICALLY GRASPING INTRALUMENAL TISSUE AND METHODS OF DELIVERY - A prosthesis can comprise an expandable frame, a plurality of distal anchors and a plurality of proximal anchors. The anchors can extend outwardly from the frame. The frame can be configured to radially expand and contract for deployment within a body cavity. The frame and anchors can have one of many different shapes and configurations. For example, when the frame is in an expanded configuration, the frame can have a larger cross-sectional dimension in a middle portion of the frame and a smaller cross-sectional dimension in a proximal portion and a distal portion of the frame, wherein the middle portion is between the proximal and distal portions. As another example, the anchors can have looped ends, the entire anchor may loop out from the frame. | 09-18-2014 |
20140309731 | VASCULAR IMPLANT - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 10-16-2014 |
20150032153 | SYSTEMS AND METHODS FOR SEALING OPENINGS IN AN ANATOMICAL WALL - Devices, systems and methods are described herein for sealing openings in an anatomical wall. A sealing system includes an elongate tubular support for delivery to an anatomical opening to be sealed, a cover of bio-compatible material covering a distal portion of the tubular support, and an anchor assembly, the anchor assembly being designed to secure the cover material to the opening. The anchor assembly can include a plurality of distal anchors and a plurality of proximal anchors, a button, ring or donut, and/or a C-clip. In some embodiments, the system further comprises a closure member for closing off an end of the cover material after removal of the tubular support. | 01-29-2015 |
20150066140 | VASCULAR IMPLANT AND DELIVERY METHOD - A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired. | 03-05-2015 |
20150081009 | DELIVERY SYSTEM FOR VASCULAR IMPLANT - A medical treatment system and method of treatment is described having an implant that can be positioned and deployed, then undeployed to allow repositioning of the implant. The system includes a self-expanding medical implant that longitudinally foreshortens upon radially expanding from a radially compacted state, a distal interface configured to attach the implant to a distal mount of a delivery device, and a proximal interface configured to attach the implant to a proximal mount of the delivery device. Moving the distal mount longitudinally away from the proximal mount applies a longitudinal tension to the implant causing the implant to expand longitudinally and contract radially, and moving the distal mount toward the proximal mount reduces a longitudinal tension in the implant allowing the implant to expand radially toward a fully expanded state. | 03-19-2015 |