Patent application number | Description | Published |
20090292350 | Stents for Prosthetic Heart Valves - A stented valve including a stent structure including a generally tubular body portion having a first end, a second end, an interior area, a longitudinal axis, and a plurality of vertical wires extending generally parallel to the longitudinal axis around a periphery of the body portion, wherein the plurality of vertical wires includes multiple commissure wires and at least one structural wire positioned between adjacent commissure wires, and a plurality of V-shaped wire structures having a first end, a second end, and a peak between the first and second ends, wherein a first end of each V-shaped structure extends from a first vertical wire and a second end of each V-shaped structure extends from a second vertical wire that is adjacent to the first vertical wire, wherein each V-shaped structure is oriented so that its peak is facing in the same direction relative to the first and second ends of the body portion, and a valve structure including a plurality of leaflets attached to the stent structure within the tubular body portion. | 11-26-2009 |
20100011564 | PROSTHETIC HEART VALVE, PROSTHETIC HEART VALVE ASSEMBLY AND METHOD FOR MAKING SAME - A mold assembly for forming a prosthetic valve having at least one leaflet, which includes a first plate having a first side from which at least one leaflet mold extends and a planar portion adjacent the at least one leaflet mold, wherein the planar portion has multiple access holes through its thickness, and a second plate having at least one mold opening and a planar portion adjacent the at least one mold opening, wherein each mold opening is sized and shaped to correspond with one of the leaflet molds of the first plate, and wherein the planar portion has multiple access holes through its thickness. The second plate is positionable relative to the first plate so that each of the leaflet molds of the first plate extend at least partially through one of the mold openings of the second plate. | 01-21-2010 |
20100018447 | METHODS AND APPARATUSES FOR ASSEMBLY OF A PERICARDIAL PROSTHETIC HEART VALVE - A method of assembling a prosthetic valve using sheets of material, such as pericardium material, polymer or bioengineered film, or other material. The method provides an accurate and repeatable system of making pericardial valves in which sheets or pieces of material are held securely in place relative to each other throughout the steps of assembling the valve. In addition, methods of the present invention include maintaining consistent alignment of the fixtures and pericardium material throughout the valve assembly process and utilize features that make the tooling components easy to assemble and handle. Certain aspects of the invention can be used to help establish a repeatable sewing and cutting technique for creating a pattern shape for valve leaflets, establishing stitch lengths, and determining the exact placement of stitches. | 01-28-2010 |
20100023120 | TISSUE ATTACHMENT DEVICES AND METHODS FOR PROSTHETIC HEART VALVES - A multi-leaflet valve, which includes at least two leaflets, an outer tube, and a seam protector for each seam. Each seam protector is positioned to be in contact with a portion of the outer tube, with tube portions and leaflet ends being positioned between adjacent seam protection pieces. The seam protectors provide a lower stress surface about which the leaflets can bend or flex during their opening and closing. The seam protectors may include an enlarged end portion with an extending straight surface, an inverted U-shaped structure, or a sinusoidal-shaped structure, for example. The valve can further be provided with a seam cover or protector that is stitched onto the seam allowance of the layers of one or more of the seams. The seams can be provided with one or more inserts to fill spaces between adjacent tissue layers and create tension in certain material sheets. | 01-28-2010 |
20120137521 | PROSTHETIC HEART VALVE, PROSTHETIC HEART VALVE ASSEMBLY AND METHOD FOR MAKING SAME - A method of forming a leaflet of a prosthetic valve includes placing a first piece of material on a working surface. A leaflet mold is placed on the first piece of material, and provides a outer peripheral shape comprising a curved portion. A second piece of material is placed over the first piece and the leaflet mold. The first and second pieces of material are stitched to one another along at least a portion of the curved portion of the leaflet mold. The leaflet mold is removed from first and second pieces of material. | 06-07-2012 |
20140081383 | STENTS FOR PROSTHETIC HEART VALVES - A stented valve including a stent structure including a generally tubular body portion having a first end, a second end, an interior area, a longitudinal axis, and a plurality of vertical wires extending generally parallel to the longitudinal axis around a periphery of the body portion, wherein the plurality of vertical wires includes multiple commissure wires and at least one structural wire positioned between adjacent commissure wires, and a plurality of V-shaped wire structures having a first end, a second end, and a peak between the first and second ends, wherein a first end of each V-shaped structure extends from a first vertical wire and a second end of each V-shaped structure extends from a second vertical wire that is adjacent to the first vertical wire, wherein each V-shaped structure is oriented so that its peak is facing in the same direction relative to the first and second ends of the body portion, and a valve structure including a plurality of leaflets attached to the stent structure within the tubular body portion. | 03-20-2014 |
Patent application number | Description | Published |
20090192585 | 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 and a distal end, and a plurality of wires extending from the distal end of the tubular body, wherein each of the wires has a distal end that is coiled for engagement with a stent of a stented prosthetic heart valve. | 07-30-2009 |
20090198316 | Delivery Systems and Methods of Implantation for Prosthetic Heart Valves - A method of deploying an implantable stented device in an anatomical location of a patient, including the steps of providing a delivery system with first and second stent engagement structures at its distal end, attaching a first structural element of the stented device to the first stent engagement structure and attaching a second structural element of the stented device to the second stent engagement structure, advancing the stented device to an implantation site, and sequentially disengaging the first structural element of the stented device from the first stent engagement structure of the delivery system and then disengaging the second structural element of the stented device from the second stent engagement structure. | 08-06-2009 |
20120197379 | DELIVERY SYSTEMS AND METHODS OF IMPLANTATION FOR PROSTHETIC HEART VALVES - A delivery system with sequential release mechanism and method of delivering and deploying an implantable stented device into a body lumen including a tabular body, a plurality of activation members extending from the distal end of the tubular body, and a plurality of disks. Each disk includes a proximal and distal surface, at least one stent engagement element attached to the distal surface of the disk and at least one aperture. At least one activation member attaches to the proximal surface of a first disk and at least one activation member passes through an aperture of the first disk and attaches to the proximal surface of a second disk. At least one stent engagement element attached to the distal surface of the first disk passes through an aperture of the second disk. Axially movement of the activation members causes sequential release of the stent engagement elements from a stented device. | 08-02-2012 |
20140142680 | Delivery Systems And Methods Of Implantation For Prosthetic Heart Valves - A delivery system for an implantable stented device having a handle with a plurality of actuation members, each actuation member connected to one or more stent attachment elements, a sheath having a proximal end attached to the handle, and a plurality of tubes extending within the sheath. The stent attachment elements extend from distal ends of the tubes. A first actuation member is configured to move a first stent attachment element proximally toward the handle and a second actuation member is configured to move a second stent attachment element proximally toward the handle, sequentially releasing specific portions of the stented device by causing distal ends of the stent attachment elements to contact an exterior of the distal ends of the tubes, thereby disengaging the first and second stent attachment elements from the stented device. | 05-22-2014 |
Patent application number | Description | Published |
20080237377 | Feed roller drive for wood chipper - The present disclosure relates to a wood chipper that has a feed roller driven by a hydraulic motor. Hydraulic fluid under pressure is provided to the motor through a two-stage pump, providing separate flows of fluid under pressure. The flows of the pump stages are combined for normal operation of the chipper. A bypass that will bypass the flow from one pump stage when the pressure of the fluid under pressure driving the motor exceeds a pre-selected level from increased load on the feed roller is provided. When the bypass is open the feed roller is slowed to reduce the feed rate of material into the chipper, and when the feed roller loads reduce, the flows will again be combined to speed up the feed roller. | 10-02-2008 |
20100024919 | Log splittter - A log splitter having a bed for accepting a log. The bed has an operating length between first and second components, with the former a wedge. The log splitter can be placed in: (a) a first operative state wherein the bed has a first operating length; and (b) a second operative state wherein the bed has a second operating length. With the log splitter in the first operative state, the wedge is movable: (a) from a first starting position in a first lengthwise direction to effect splitting of a log; and (b) thereafter, oppositely to the first lengthwise direction back into the first starting position. In the second operative state, the wedge is movable: (a) from a second starting position to effect splitting; and (b) thereafter, back into the second starting position. The log splitter further has an operating assembly to move the first component. | 02-04-2010 |
20110024139 | WINDROWER AND METHOD OF WINDROWING A GROWN PRODUCT - A windrower with a frame that: a) has a front, a rear and laterally spaced sides; and b) is movable in an advancing direction. A processing mechanism is capable of: a) unearthing grown product; and b) separating foreign matter from the grown product as the frame is advanced. A cross conveyor assembly controllably discharges grown product from the processing mechanism to the underlying terrain. The cross conveyor assembly has a first discharge end and at least one section, including the first discharge end, that is selectively translatable laterally relative to the frame as the frame is advancing thereby to laterally change a location of the first discharge end and thus the lateral discharge location for the cross conveyor assembly at the first discharge end. | 02-03-2011 |
20110036651 | PTO DRIVEN HYDRAULIC SYSTEM - A hydraulic system operably coupled to a vehicle, the vehicle having at least one PTO drive and having a hydraulic system for, in part, cooling hydraulic fluid, includes a closed hydraulic circuit having at least a first and a second hydraulic loop, a pump being a component of each of the at least a first and a second hydraulic loops, the pump being operably, rotatably coupled to the PTO drive, the first hydraulic loop having a feed line fluidly coupled to the vehicle hydraulic system and to the pump and a return line in fluid communication with the pump and operably, fluidly coupled to the vehicle hydraulic system; and the second hydraulic loop having a pressure line fluidly coupled to a output of the pump and a return line fluidly coupled to a pump return inlet, the second hydraulic loop being fluidly couplable to an implement for providing hydraulic power thereto. A method of forming the hydraulic system is included. | 02-17-2011 |