| Entries |
| Document | Title | Date |
|---|
| 20080200977 | Artificial Valve Prostheses with a Free Leaflet Portion - One embodiment of the present invention provides an implantable valve prosthesis. The valve prosthesis includes a frame defining a lumen extending between a proximal frame end and a distal frame end along a longitudinal axis, and a first valve leaflet positioned within the lumen and having a distal edge attached to the frame and a proximal edge free of the frame. The first valve leaflet comprises a first and a second slit extend distally from the proximal edge and defining a free portion of the first valve leaflet between the first and second slits. The first valve leaflet is movable between a first position that allows fluid flow in a first, antegrade, direction and a second position that restricts flow in a second, retrograde direction. | 08-21-2008 |
| 20080221669 | Endovenous Stent and Venous Neovalvular Endobioprosthesis - Endovenous stent for restoring the function of an incompetent venous valve having slackened cusps. The stent includes two parallel struts; two terminal elastic elements, connecting the struts at their extremities and compressing them apart, and make them, once the stent implanted into the vein to be cured, to dilate the intercommissural diameter of the valve to be cured, taking up the slackening of the incompetent cusps; and such endovenous stent, further dressed with a venous valvulated segment reversed inside-out, in which the cusps perform their valvular function by moving themselves from inside out, so constituting a venous neovalvular endobioprosthesis for curing an incompetent vein by implantation into it, in case of damage or aplasia of the venous valve. | 09-11-2008 |
| 20080249611 | Mrt-Compatible Valve Prosthesis for Use in the Human or Animal Body for Replacement of an Organ Valve or a Vessel Valve - The invention relates to a biological or artificial valve prosthesis ( | 10-09-2008 |
| 20080249612 | PROSTHETIC VALVE THAT PERMITS RETROGRADE FLOW - A prosthetic valve for regulating fluid flow through a body vessel is provided. The valve includes an expandable support frame and a valve leaflet, and includes at least one opening that permits a controlled amount of retrograde flow through the valve when the valve is in a closed configuration. A flap disposed adjacent the opening is able to temporarily and substantially close the opening to contribute to the regulation of retrograde flow proceeding through the valve. | 10-09-2008 |
| 20080288055 | Monocuspid Prosthetic Valve Having a Partial Sinus - The disclosure relates to an expandable valve prosthesis for regulating flow through a body vessel. The prosthesis comprises a frame configured to form a laterally asymmetric partial sinus and a valve member. | 11-20-2008 |
| 20080312735 | COMBINATION VALVE AND STENT FOR TREATING VASCULAR REFLUX - A stent and valve device assembly for manufacture using suitable biocompatible materials and for placement, preferably percutaneously, into a vascular lumen. | 12-18-2008 |
| 20090012600 | Kit Which Is Intended to Be Implanted in a Blood Vessel, and Associated Tubular Endoprosthesis - The invention concerns a kit ( | 01-08-2009 |
| 20090030503 | METHOD AND APPARATUS FOR PERCUTANEOUS AORTIC VALVE REPLACEMENT - A method for percutaneous aortic valve (PAV) replacement and a temporary aortic valve used to facilitate the same. The temporary valve is comprised of a reversibly expandable occluding means, such as balloons, surrounding a central catheter mechanism. The temporary valve is positioned within the ascending aorta, just above and downstream from the coronary ostia. The occluding means is configured such that, when fully expanded against the aortic wall, gaps are left that promote continuous coronary perfusion during the cardiac cycle. The native aortic valve is next dilated, and then ablated through deployment of an ablation stent. The ablation stent displaces the native valve tissues and remains within the aortic annulus to receive and retain the PAV. The PAV can then be positioned and deployed within the ablation stent with precision and ease. Ablation of the native aortic valve removes the structural obstacles to precise PAV placement. The temporary aortic valve mediates the hemodynamic forces encountered by the surgeon following native valve ablation. The temporary valve also promotes patient stability through continuous coronary perfusion and a moderated transvavlular pressure gradient. Mathematical considerations for determining the optimum cross-sectional area for the temporary valve blood perfusion gaps are also described. | 01-29-2009 |
| 20090048662 | IMPLANTABLE VASCULAR DEVICE - A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet. | 02-19-2009 |
| 20090054968 | IMPLANT IMPLANTATION UNIT AND PROCEDURE FOR IMPLANTING THE UNIT - The implant implantation unit ( | 02-26-2009 |
| 20090062907 | Self-expanding valve for the venous system - A venous valve device and method of formation are described to provide antegrade blood flow in the deep venous vessels of the leg or in other venous vessels of the body having incompetent or irreversibly dysfunctional valves. The venous valve device is made of a sheet of biocompatible material, comprising a longitudinal wire-frame structure that is a continuous seamless wire loop and plural anchoring mesh-lattice wing members spaced apart and connected to the base of the wire-frame structure. | 03-05-2009 |
| 20090062908 | IMPLANT IMPLANTATION UNIT AND PROCEDURE FOR IMPLANTING THE UNIT - The implant implantation unit, at a determined position in the tubular element with a wall comprising a cavity, is pushed there by a catheter and the unit comprises deformable feelers to, under the control of remote activation elements, change from a stowed form to a deployed functional form, to detect the cavity and position itself there with reference to the position of the cavity. | 03-05-2009 |
| 20090105810 | BIOLOGICAL VALVE FOR VENOUS VALVE INSUFFICIENCY - A bioprosthetic valve for repairing a deep venous insufficiency in a subject includes a single leaflet from a xenogeneic heart valve attached at natural margins of attachment to a patch of valve wall tissue. The patch may extend axially above and below the leaflet and circumferentially on either side of the leaflet to provide a region for attaching the patch to a fenestration in a host vein. A bioprosthetic valve may be manufactured by excising a portion of a xenogeneic heart valve including a single leaflet and contiguous wall tissue, and may further comprise shaving off excess leaflet tissue from adjacent leaflets. A method of replacing a malfunctioning venous valve in a subject includes providing a bioprosthetic valve as described above and inserting it to the host vein. | 04-23-2009 |
| 20090112308 | Wireless Shunts With Storage - Devices and methods useful for storing and retrieving information related to a medical device such as an implantable valve or an implantable sensor are disclosed. An implantable valve can include a valve housing adapted to receive fluid flow therethrough between a valve inlet and a valve outlet. A valve assembly can be disposed within the valve housing and adapted to control a rate of fluid flowing through the valve housing. The implantable valve can also include a radio frequency identification (RFID) tag associated with the valve housing, adapted to store data, and including an antenna for communicating stored data to an external reading device. The RFID tag can store data related to, for example, a patient, a pressure setting of the valve assembly, and/or pressure sensor disposed within the valve. The RFID tag can also store an identifier that identifies the implantable valve, a pressure sensor disposed in the valve housing, a patient associated with the implantable valve, and/or patient clinical history. | 04-30-2009 |
| 20090157169 | IMPLANTABLE VASCULAR DEVICE - A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet. | 06-18-2009 |
| 20090171447 | STENT-VALVES FOR VALVE REPLACEMENT AND ASSOCIATED METHODS AND SYSTEMS FOR SURGERY - Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided. | 07-02-2009 |
| 20090177269 | Device for regulating blood flow - An implantable device for regulating blood flow through a blood vessel comprising an elongated support dimensioned and configured to be implanted in a blood vessel. The support includes a linking member linking axially spaced apart portions to one another. A valve membrane extends between the axially spaced apart support portions and includes first region folded over the first linking member and attached thereto and a second region adjacent the first region and unattached to the first linking member. The second region is movable between a first position to enable blood flow and a second position to inhibit blood flow. | 07-09-2009 |
| 20090177270 | Flow-Deflecting Prosthesis for Treating Venous Disease - The disclosure relates to a flow-deflecting medical device comprising a support structure and at least one flow-deflecting member attached to the support structure. The flow-deflecting member is at least partially evertible between a first position and a second position. In the first position, antegrade flow contacts the antegrade surface of the flow-deflecting member, urging the flow-deflecting member proximally in the body vessel such that antegrade flow is substantially uninterrupted. In the second position, retrograde flow contacts the retrograde surface of the flow-deflecting member, urging the flow-deflecting member distally in the body vessel, such that retrograde flow is received and redirecting by the flow-deflecting member. Also provided is a method for treating a body vessel valve-related condition comprising implanting a flow-deflecting medical device proximal to a native valve. | 07-09-2009 |
| 20090240320 | VALVE SUTURING AND IMPLANTATION PROCEDURES - A prosthesis for implantation at a native semilunar valve includes a prosthetic distal valve, which includes a pliant material configured to collapse inwardly towards a longitudinal axis of the prosthesis during diastole, and to open outwardly during systole, and a distal fixation member configured to be positioned in a downstream artery of the subject. The apparatus also includes a proximal fixation member coupled to the distal fixation member, and configured to be positioned at least partially on a ventricular side of the native semilunar valve. The proximal fixation member is shaped so as to define a lattice that is shaped so as to define an intermediary portion that is coupled to the pliant material of the valve and diverges outwardly from the longitudinal axis, and a distal portion that is distal to the intermediary portion and diverges outwardly from the intermediary portion of the lattice. Other embodiments are also described. | 09-24-2009 |
| 20090248142 | Methods, Devices and Systems for Treating Venous Insufficiency - Methods and systems for improving the competency of a venous valve wherein one or more compressor(s) (e.g., space occupying material(s) or implantable device(s)) is/are delivered to one or more location(s) adjacent to a venous valve to compress the venous valve in a manner that causes one or both leaflets of the valve to move toward the other, thereby improving closure or coaptation of the valve leaflets. The compressor(s) may be delivered by an open surgical approach, by a direct percutaneous approach or by a transluminal catheter-based approach. | 10-01-2009 |
| 20090254175 | Valved stent for chronic venous insufficiency - The invention discloses a valved stent and process of manufacture for treating chronic venous insufficiency having the geometry of the supporting frame and its coupling to the membrane of a specific geometry that provides the valvular mechanism for optimal function. The membrane may comprise a decellularized pericardial tissue via chemical treatment with cholic acid or bile salts and crosslinked. | 10-08-2009 |
| 20090254176 | VALVE PROSTHESIS FOR IMPLANTATION IN BODY CHANNELS - The present invention regards a valve prosthesis ( | 10-08-2009 |
| 20090287298 | CARDIAC VALVE, SYSTEM, AND METHOD - A cardiac valve with a support frame having a first end member and a second end member opposing the first end member in a substantially fixed distance relationship, and a cover extending over the support frame to allow for unidirectional flow of a liquid through the valve. | 11-19-2009 |
| 20100010623 | PERCUTANEOUS HEART VALVE WITH STENTLESS SUPPORT - An implantable prosthetic valve having a stentless support structure. The valve has a tubular annular support structure with a first inflatable ring at a proximal end, a second inflatable ring at a distal end, and an inflatable intermediate support in between the first and second inflatable rings. There is at least one moveable occluder that controls the flow of blood through the tubular support structure. The tubular support structure can be filled with inflation media in the first inflatable ring, the second inflatable ring and inflatable intermediate support structure to convert the tubular support structure from a collapsed configuration to a patent tubular configuration. | 01-14-2010 |
| 20100023114 | VALVE DEVICE WITH BIASED LEAFLETS - Valve devices useful in the treatment of various valve-related disorders and/or conditions are described. A valve device includes a leaflet and a means for biasing the leaflet in an open configuration. A method of making a valve device comprises the steps of determining a desired closing pressure; determining a desired opening pressure, selecting one or more valve leaflets; selecting an appropriate means for biasing the leaflet in an open configuration based on the determined closing and opening pressures; and attaching the one or more valve leaflets to the means for biasing the leaflet in an open configuration. | 01-28-2010 |
| 20100030322 | BRIDGE GRAFT - An arterio-venous graft includes an implantable tubular member and a flow regulator. The implantable tubular member has a first end and a second end generally opposite the first end. The flow regulator is between the first end and the second end. The flow regulator is configured to regulate fluid flow between the first end and the second end. A method of regulating pressure in an arterio-venous graft includes reversibly adjusting a cross-sectional area of the graft. A method of fluidly coupling an artery and a vein includes connecting a first end of an implantable tubular member to the artery and connecting a second end of the implantable tubular member to the vein. A cross-sectional area of the implantable tubular member is reversibly adjustable. | 02-04-2010 |
| 20100057191 | IMPLANTABLE VASCULAR DEVICE - An valve prosthesis, such as an artificial venous valve, having a support frame and leaf structure comprising one or more leaflets in which the outer edge of each leaflet engages the inner circumference of the bodily passageway along a serpentine path urged against the passageway by an expandable frame, while the inner edges move in response to fluid to restrict retrograde flow. Optionally, one or more elements can extend from the support frame/leaf structure to provide centering support and/or protection from the leaflet adhering to the vessel wall. In one embodiment, the centering support structure comprises a second or third expandable frames attached to and extending from the proximal and/or distal ends of main valve structure and support frame. In another embodiment, one or more support elements extend outward from the valve support frame to engage the vessel wall to provide greater longitudinal stability. | 03-04-2010 |
| 20100114299 | FLOW REDUCING IMPLANT - A flow reducing implant for reducing blood flow in a blood vessel having a cross sectional dimension, the flow reducing implant comprising a hollow element adapted for placement in the blood vessel defining a flow passage therethrough, said flow passage comprising at least two sections, one with a larger diameter and one with a smaller diameter, wherein said smaller diameter is smaller than a cross section of the blood vessel. A plurality of tabs anchor, generally parallel to the blood vessel wall, are provided in some embodiments of the invention. | 05-06-2010 |
| 20100121431 | MEDICAL IMPLANT AND PROCESS FOR THE PRODUCTION THEREOF - An elongate hollow body ( | 05-13-2010 |
| 20100131049 | One-Way valve Prosthesis for Percutaneous Placement Within the Venous System - A one-way valve prosthesis for percutaneous placement within a vein, the valve including a valve body having an inlet and an outlet with a lumen that extends there between. The valve body is operable to alternate between a closed configuration wherein the valve body has a double cone shape and an open configuration wherein the valve body has a double frustoconical shape. A valve seat if formed within the lumen of the valve body at a midsection thereof. The valve seat is constricted to prevent flow there through when the valve body is in the closed configuration and the valve seat is open to allow flow there through when the valve body is in the open configuration. The valve seat opens in response to an actuation pressure and closes in the absence of the actuation pressure. | 05-27-2010 |
| 20100152838 | Implantable Valvular Prosthesis - An implantable valvular prosthesis is adapted for replacement of an anatomic valve that controls passage of blood flowing from an atrium to a ventricle in a patient's heart. The implantable valvular prosthesis includes a tubular stent body, at least one valve flap member, and a graft member. | 06-17-2010 |
| 20100152839 | Shape Memory Polymer Prosthetic Medical Device - A prosthetic medical device is formed by the combination of a biological tissue a shape memory polymer structure. The biological tissue provides an in-situ physiological function of the device. The shape memory polymer provides a capability for minimizing the device profile during insertion and then deploying after placement into a memory shape that achieves suitable mechanical structure and stability within an anatomical lumen or cavity. This configuration may be applied to form various prosthetic devices including aortic, mitral, and tricuspid valves in the heart; venous valves; anti-reflux valves for the lower esophageal sphincter; and other biological valve structures. Alternatively, an entirely non-biologic implementation using only shape memory polymer-based structures may be used as a prosthetic valve device. | 06-17-2010 |
| 20100185274 | ADJUSTABLE PROSTHETIC VALVE IMPLANT - A prosthetic implant for treating a diseased aortic valve is described. The prosthetic implant includes a substantially tubular body configured to be positioned in an aorta of a patient, at or near the patient's aortic valve. The body includes a lumen extending through the body from a proximal end to a distal end of the body; and an adjustable frame surrounding the lumen. The prosthetic implant further includes at least one adjustable element located in or on the body and extending at least partially around a circumference of the lumen. The at least one adjustable element includes a shape memory material and is transformable, in response to application of an activation energy, from a first configuration to a second configuration, wherein the first configuration and second configuration differ in a size of at least one dimension of the at least one adjustable element. The at least one adjustable element may engage at least one of a root of the aorta, an annulus of the aortic valve, and the patient's left ventricle, when the at least one adjustable element is in the second configuration. | 07-22-2010 |
| 20100234939 | BIOLOGICAL VALVE FOR VENOUS VALVE INSUFFICIENCY - A bioprosthetic valve for repairing a deep venous insufficiency in a subject includes a single leaflet from a xenogeneic heart valve attached at natural margins of attachment to a patch of valve wall tissue. The patch may extend axially above and below the leaflet and circumferentially on either side of the leaflet to provide a region for attaching the patch to a fenestration in a host vein. A bioprosthetic valve may be manufactured by excising a portion of a xenogeneic heart valve including a single leaflet and contiguous wall tissue, and may further comprise shaving off excess leaflet tissue from adjacent leaflets. A method of replacing a malfunctioning venous valve in a subject includes providing a bioprosthetic valve as described above and inserting it to the host vein. | 09-16-2010 |
| 20110004295 | Implant valve for implantation in a blood vessel - An implant valve for implantation in a blood vessel is comprised of a flexible tube and a hollow, substantially cylindrical support with a casing, expandable in diameter from an initial position to an implantation position. The support extends substantially coaxially over a part of the length of the tube along the inner wall of the tube. The casing of the support cooperates with the inner wall of the tube such that, in the implantation position, a first part of the tube can be formed into a rigid shell, which can be clamped substantially coaxially along the inner wall of a blood vessel. A second, axially contiguous part of the tube can then form a flexible, tubular valve body, which can extend substantially clear in the blood vessel. In an advantageous embodiment, the flexible tube comprises a vein turned inside out and the ends of the tube are connected to form a ring embracing the support. | 01-06-2011 |
| 20110029066 | Stent valve and method of using same - A stent valve insertable in a body vessel containing a body fluid. The stent valve includes: a valve for at least partially controlling the flow of the body fluid in the body vessel; and a scaffold, the scaffold including: an anchoring section for anchoring the scaffold to said body vessel and a valve supporting section supporting the valve. The scaffold is substantially radially expandable from a scaffold retracted configuration to a scaffold expanded configuration. The valve supporting section is expandable over a greater range of radial expansion than the anchoring section. | 02-03-2011 |
| 20110029067 | VASCULAR DEVICE WITH VALVE FOR APPROXIMATING VESSEL WALL - A vascular device comprising a plurality of vessel engaging members and a valve. The device is movable from a collapsed insertion position having a first diameter to a second expanded position having a second diameter larger than the first diameter. The plurality of vessel engaging members extend outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position, wherein the vessel engaging members pull the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter greater than the first diameter and less than the second diameter. In the first expanded position the valve is movable between an open position to allow blood flow therethrough to a closed position to prevent blood flow. | 02-03-2011 |
| 20110166644 | BLOOD VESSEL PROSTHESIS AND DELIVERY APPARATUS - A prosthesis for locating at a branch region of a blood vessel. The prosthesis comprises a main conduit ( | 07-07-2011 |
| 20110184510 | TRICUSPID VALVE REPAIR USING TENSION - A method is provided, including implanting at least a first tissue-engaging element in a first portion of tissue in a vicinity of a heart valve of a patient, implanting at least a second tissue-engaging element in a portion of a blood vessel that is in contact with an atrium of a heart of the patient, and drawing at least a first leaflet of the valve toward at least a second leaflet of the valve by adjusting a distance between the portion of the blood vessel and the first portion of tissue in the vicinity of the heart valve of the patient. Other applications are also described. | 07-28-2011 |
| 20110196476 | IMPROVED ARTIFICIAL VALVE - The invention discloses an artificial valve ( | 08-11-2011 |
| 20110202124 | Apparatus and Methods for Creating a Venous Valve from Autologous Tissue - An implantable prosthesis for percutaneous placement within a vein that forces opposing portions of the vessel wall of a vein together to create a new valve of autologous vein tissue to be operable to alternate between a valve closed configuration and a valve open configuration. When in a preset closed configuration, the implantable prosthesis pushes or pulls portions of the vessel wall of the vein together to substantially close the vein lumen and prevent retrograde blood flow from backflowing through the new valve in the valve closed configuration. The implantable prosthesis has leg portions that may be pushed apart in response to antegrade blood flow through the vein to allow the new valve to achieve the valve open configuration. | 08-18-2011 |
| 20110224779 | THIN COLLAGEN TISSUE FOR MEDICAL DEVICE APPLICATIONS - This invention relates to processes of preparing heterogeneous graft material from animal tissue. Specifically, the invention relates to the preparation of animal tissue, in which the tissue is cleaned and chemically cross-linked using both vaporized and liquid cross-linking agents, resulting in improved physical properties such as thin tissue and lowered antigenicity, thereby increasing the ease of delivering the tissue during surgery and decreasing the risk of post-surgical complication, respectively. | 09-15-2011 |
| 20110224780 | STENTS FOR PROSTHETIC HEART VALVES - A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stented valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures. | 09-15-2011 |
| 20110224781 | REPOSITIONABLE ENDOLUMINAL SUPPORT STRUCTURE AND ITS APPLICATIONS - An endoluminal support structure includes strut members interconnected by swivel joints to form a series of linked scissor mechanisms. The structure can be remotely actuated to compress or expand its shape by adjusting the scissor joints within a range of motion. In particular, the support structure can be repositioned within the body lumen or retrieved from the lumen. The support structure can be employed to introduce and support a prosthetic valve within a body lumen. | 09-15-2011 |
| 20110301692 | Assembly for Placing a Prosthetic Valve in a Duct in the Body - A prosthetic valve assembly can include a radially expandable stent. The stent can includea first expandable annular portion that is configured, in an expanded state, to bear against a wall of a native body lumen, a second expandable annular portion that is configured, in an expanded state, to bear against a wall of a native body lumen. The stent can also include a plurality of rods extending between the first annular portion and the second annular portion. The prosthetic valve assembly can further include an implantable prosthetic valve mounted to the stent such that the valve is between the first annular portion and the second annular portion. The prosthetic valve assembly is configured to be delivered by catheterization. | 12-08-2011 |
| 20110319981 | Venous Valve, System, and Method - A venous valve with a frame and a cover on the frame for unidirectional flow of a liquid through the valve. | 12-29-2011 |
| 20120046733 | METHOD OF DELIVERING A MEDICAL DEVICE ACROSS A VALVE - Devices and methods for treating veins and venous conditions, such as chronic cerebrospinal venous insufficiency, are provided. In one aspect, the disclosed subject matter provides an intraluminal scaffold having a generally tubular body with a lumen defined therethrough, the tubular body having a compressed condition for delivery and an expanded condition for implant within a vessel having a distended portion, at least a length of the tubular body configured to form an enlarged portion in the expanded condition to engage a wall of the distended portion of the vessel. Methods for fabricating and using the scaffold, methods for remodeling a vein, and methods of deploying a medical device in a vessel without negatively impacting the function of a valve of the vessel, are also provided. | 02-23-2012 |
| 20120059454 | Stented Prosthetic Heart Valves - A surgical sutureless valve that is attached to a stent frame for delivery to a location in a patient using percutaneous implantation devices and methods. | 03-08-2012 |
| 20120116497 | ARTIFICIAL VALVE FOR IMPLANTATION - An artificial heart valve consists of two or more valve members ( | 05-10-2012 |
| 20120191179 | BASE MATERIAL FOR FORMING VALVED LUMEN SHAPE TISSUE, METHOD FOR PRODUCING VALVED LUMEN SHAPE TISSUE, AND VALVED ARTIFICIAL BLOOD VESSEL - The present invention provides a base material which can be formed into valved lumen shape tissue having an ampulla and a leaflet consisting of body tissue. Specifically, the base material includes a first column | 07-26-2012 |
| 20120197386 | Stent-Valves for Valve Replacement and Associated Methods and Systems for Surgery - Stent-valves (e.g., single-stent-valves and double-stent-valves), associated methods and systems for their delivery via minimally-invasive surgery, and guide-wire compatible closure devices for sealing access orifices are provided. | 08-02-2012 |
| 20120215299 | MRT-COMPATIBLE VALVE PROSTHESIS FOR USE IN THE HUMAN OR ANIMAL BODY FOR REPLACEMENT OF AN ORGAN VALVE OR A VESSEL VALVE - The invention relates to a biological or artificial valve prosthesis ( | 08-23-2012 |
| 20120253453 | DURABLE HIGH STRENGTH POLYMER COMPOSITE SUITABLE FOR IMPLANT AND ARTICLES PRODUCED THEREFROM - A thin, biocompatible, high-strength, composite material is disclosed that is suitable for use in various implanted configurations. In one aspect, the composite material maintains flexibility in high-cycle flexural applications, making it particularly applicable to high-flex implants such as heart pacing lead or heart valve leaflet. The composite material includes a porous expanded fluoropolymer membrane and an elastomer, wherein the elastomer fills substantially all of the pores of the porous expanded fluoropolymer, and the composite material comprising less than about 80% fluoropolymer by weight. | 10-04-2012 |
| 20120323309 | STENT WITH FLAPS - A medicinal device with a tubular wall made of webs which delimit the cells, and a flexible membrane which forms at least one flap which has a first end connected to at least one first web of a cell, and a free second end which is disposed opposite the first end in the longitudinal direction of the flap. The flap, in the closed position, extends along the tubular wall and at least partially closes the cells, and can be moved to an open position in which the flap is radially deviated in relation to the wall in order to open the cells in a valve-like manner. | 12-20-2012 |
| 20130018453 | ARTIFICIAL VALVE PROSTHESIS WITH IMPROVED FLOW DYNAMICS - An expandable venous valve having a support structure that is configured to enlarge the area adjacent to the valve structure such that the flow patterns of retrograde flow are modified in a way that facilitates the flushing of the pockets at the base of the valve area to prevent stagnation of bodily fluid, which in the venous system, can lead to thrombus formation. The enlarged pocket areas can be created by forming an artificial sinus adjacent the valve structure in an unsupported section of vessel wall between two support frame sections or the support frame can comprise an expanded-diameter intermediate or proximal section that forms an artificial sinus adjacent the valve structure. | 01-17-2013 |
| 20130060325 | IMPLANTABLE THREE-WAY DIAPHRAGM VALVE - An embodiment in accordance with the present invention provides a valve including a housing having a top portion and a bottom portion. The top portion of the housing defines a first and second nozzle, and the bottom portion of the housing defines an opening. A diaphragm has an open position and a closed position, and the diaphragm is disposed between the top portion of the housing and the bottom portion of the housing. A first fluid flow path between the first nozzle and the second nozzle is defined by the housing and the diaphragm, when the diaphragm is in the closed position. A second fluid flow path between the opening and the first nozzle is defined by the housing and the diaphragm, when the diaphragm is in the closed position. Such a valve can be used for a number of purposes including hemodialysis procedures. | 03-07-2013 |
| 20130079867 | Valve Frame - The disclosure relates to support frames for prosthetic implantable valves. The support frames may include a plurality of symmetrically arrayed interconnected U-shaped member structures. Preferred support frames are tubular structures enclosing a longitudinal axis and including a plurality of U-shaped member structures facing a distal or a proximal end of the support frame. Each U-shaped member structure may be connected to a single longitudinally adjacent U-shaped member facing in an opposite longitudinal direction, as well as two laterally adjacent U-shaped members. | 03-28-2013 |
| 20130079868 | METHODS OF REDUCING RETROGRADE FLOW - Methods of reducing retrograde fluid flow through a valve within a body vessel are provided. The methods can include the steps of identifying a valve exhibiting an undesirable amount of retrograde fluid flow within a body vessel, such as a venous valve or a heart valve, and providing a means for reducing the retrograde fluid flow. A medical device providing a desired amount of retrograde fluid flow can be modified after permitting the medical device to remain in a body cavity for a remodeling-effective time period. The implanted medical device can be modified by subsequently reducing the amount of retrograde fluid flow permitted across the implanted prosthetic valve within the body vessel. | 03-28-2013 |
| 20130123908 | FATIGUE-RESISTANT FLOW REGULATING DEVICE AND MANUFACTURING METHODS - The artificial valves and methods described herein and shown in the drawings, provide for artificial valves with superior properties including fatigue resistance, biocompatibility, and ease of manufacture. | 05-16-2013 |
| 20130172984 | ENDOLUMINAL PROSTHESIS WITH A VALVE ARRANGEMENT - The present embodiments provide a stent graft having a tubular configuration defining a lumen therethrough, the stent graft having a proximal section and a distal section. A folded section is positioned between the proximal section and the distal section. The folded section includes a first fold directed toward the distal end and engaged with the proximal section and a second fold directed toward the proximal end and engaged with the distal section. A valve arrangement is positioned in at least one of the first and second folds providing access from an exterior of the graft to the interior of the stent graft for insertion of an additional device. | 07-04-2013 |
| 20130178929 | VALVED STENT, BASE MATERIAL FOR FORMING VALVED STENT, AND METHOD FOR PRODUCING VALVED STENT - The present invention provides a valved stent that can provide a valve function without blocking a branch blood vessel, and also can provide a valve function with minimum covering of blood vessel tissue in a stent indwelling section. Specifically, a cylindrical stent body | 07-11-2013 |
| 20130289710 | VASCULAR DEVICE AND METHOD FOR VALVE LEAFLET APPOSITION - A vascular device having a plurality of struts having a distal portion and a proximal portion. The distal portion of the struts are retained in a converged position. The struts diverge radially outwardly. A plurality of vessel penetrating members extend from the proximal portion of the struts for engaging the internal wall of the vessel, wherein release of the retention of the distal portions of the struts causes the distal portions to move outwardly away from the longitudinal axis and the proximal portions of the struts to move inwardly toward the longitudinal axis such that the vessel engaging members pull the internal wall of the vessel radially inwardly. | 10-31-2013 |
| 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 |
| 20130289712 | VALVED CONDUIT - The present invention discloses a valved conduit, which comprises an artificial blood vessel and an artificial valve. The artificial valve is located at the proximal end of said artificial blood vessel. The lateral wall of the artificial blood vessel is provided with left and right openings at positions close to said artificial valve. The positions of said left and right openings correspond to the ostia of the left and right coronary arteries. The valved conduit also comprises a hard tube which is connected with said artificial blood vessel. The hard tube is bound with the aorta through a ligature and a space is formed between the ligation position and the aortic valve. Thereby it is unnecessary to suture the openings and the coronary arteries and reducing the probability of hemorrhage at the anastomotic site. | 10-31-2013 |
| 20130325103 | ABDOMINAL CAVITY-VEIN SHUNT STENT - An abdominal cavity-vein shunt stent provided for transporting ascites accumulated in the abdominal cavity of a patient to a vascular system, includes: a stent body which extends cylindrically long and which has one end disposed in the intrahepatic vein, and the other end piercing the liver parenchyma and disposed in the abdominal cavity; and a one-way valve which is disposed in the stent body, which is opened to drain ascites into the intrahepatic vein when a differential pressure obtained by subtracting the pressure of the intrahepatic vein from the pressure in the abdominal cavity is not lower than a predetermined value, and which is closed when the differential pressure is lower than the predetermined value. | 12-05-2013 |
| 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 |
| 20140155988 | VASCULAR DEVICE WITH VALVE FOR APPROXIMATING VESSEL WALL - A vascular device comprising a plurality of vessel engaging members and a valve. The device is movable from a collapsed insertion position having a first diameter to a second expanded position having a second diameter larger than the first diameter. The plurality of vessel engaging members extend outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position, wherein the vessel engaging members pull the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter greater than the first diameter and less than the second diameter. In the first expanded position the valve is movable between an open position to allow blood flow therethrough to a closed position to prevent blood flow. | 06-05-2014 |
| 20140207229 | Venous Valve Apparatus, System, and Method - A venous valve with a tubular frame that includes an outer surface and an inner surface opposite the outer surface and defining a lumen, and a cover over at least the outer surface of the tubular frame, where the cover includes surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen. A system with the venous valve and a catheter including a proximal end and a distal end, the venous valve located between the proximal end and distal end of the catheter. A method including forming the venous valve and reversibly joining the venous valve and a catheter. A method including positioning at least part of the catheter including the venous valve at a predetermined location and deploying the venous valve from the catheter at the predetermined location. | 07-24-2014 |
| 20140236283 | STENT-BASED EXTRA-VENOUS SUPPORT FOR VENOUS VALVE REPAIR - An oval-shaped extra-venous support for venous valve repair, including a cylindrical channel mesh shell, the cross-section whereof is oval, which is a one-piece one ( | 08-21-2014 |
| 20140257463 | VENOUS VALVE REPAIR PROSTHESIS FOR TREATMENT OF CHRONIC VENOUS INSUFFICIENCY - Endovascular prostheses are disclosed that are configured to repair a native venous valve having improper or non-existent valve leaflet coaptation caused by vessel weakness and/or distention. The prostheses are configured to be implanted in the venous system immediately downstream of the malfunctioning valve and act as repair devices to restore proper function to the venous valve by reconfiguring and supporting the valve leaflets and thereby improving their coaptation. | 09-11-2014 |
| 20140350661 | ARTIFICIAL DEVICE DEPLOYMENT APPARATUS - Described, in certain aspects of the invention, are apparatuses and methods for deploying artificial devices within the vascular system. One apparatus includes a delivery device having a lumen and a deployment member slidably received within the lumen. This apparatus further includes an artificial device having an anchoring element releasably engaged with the deployment member. Such an apparatus can be percutaneously delivered to a site within a vascular vessel, and thereafter manipulated so that the anchoring element attaches to the vessel wall. The delivery device and deployment member can then be withdrawn from the vessel, whereby the deployment member disengages from the anchoring element, leaving the artificial device implanted in the vessel. | 11-27-2014 |
| 20150018937 | PERFUSION REGULATION SYSTEM - A reperfusion system and method of perfusing a blood vessel using the reperfusion system are provided. The system includes an introducer sheath, a middle catheter extending through the introducer sheath, and a balloon microcatheter extending through the middle catheter. A connecting tube extends between a lumen of the introducer sheath and a valve at a proximal end of the microcatheter. A flow path is defined along a lumen of the introducer sheath, through the connecting tube, into the microcatheter, and out of a distal opening of the microcatheter. The balloon is disposed adjacent the exit point of the flow path to reduce reflux. Embolic material can be introduced into the microcatheter at the valve to exit at the same location as the blood flow. | 01-15-2015 |
| 20150039079 | DEVICES AND METHODS FOR ASSISTING VALVE FUNCTION, REPLACING VENOUS VALVES, AND PREDICTING VALVE TREATMENT SUCCESS - Devices and methods for assisting valve function, replacing venous valves, and predicting valve treatment successes. In at least one exemplary embodiment of an endograft body configured for expansion within a luminal organ of the present disclosure, the endograft body comprises (a) a first portion having a proximal end defining a proximal end aperture and a distal end defining a distal end aperture, the first portion configured to increase a velocity of fluid flowing therethrough, (b) a second portion having a second portion proximal end defining a second portion proximal end aperture and a second portion distal end defining a second portion distal end aperture. | 02-05-2015 |
| 20150127089 | STENT GRAFT WITH VALVE ARRANGEMENT - A stent graft has a cylindrical wall, an internal lumen within the cylindrical wall and a fenestration in the wall. The fenestration is closed off by a valve arrangement to prevent the flow of liquids from within the internal lumen to outside of the wall. The valve arrangement is a tube of graft material which can be closed off by pressure on its outside surface. The end of the tube remote from the fenestration can be held shut by having its periphery fastened to a flattened resilient ring. Fluid pressure on the tube of graft material causes the tube to close off to prevent fluid flow therethrough and by resilient deflection of the resilient ring the end of the tube of graft material can be opened to enable the passing of a medical device therethrough. | 05-07-2015 |
| 20150290006 | METHOD OF PREVENTING OR ALLEVIATING HIGH VENOUS PRESSURE DUE TO TRICUSPID REGURGITATION IN A PATIENT - The present invention is directed to a method of preventing or alleviating high venous pressure in a patient, the method comprising the steps of implanting a first biocompatible scaffold into the lumen of the vena cava inferior (VCI) of the patient, preferably at a site between the right atrium and the ostium of the hepatic veins; optionally implanting a second biocompatible scaffold into the lumen of the first biocompatible scaffold; and placement of a first valve into the lumen of the first or second biocompatible scaffold; wherein the biocompatible scaffolds and the first valve are configured and arranged to permit blood flow towards a right atrium of the patient and to prevent blood flow in an opposite direction. | 10-15-2015 |
| 20150305859 | Selective Fluid Barrier Valve Device and Method of Treatment - Selective fluid barrier valve devices and methods of treatment are described herein. An embodiment of a selective fluid barrier valve device comprises a housing, an actuator, a sleeve, a wire member, and a connector. The sleeve defines a passageway that extends through the sleeve. The actuator is moveable between a first position and a second position. When the actuator is in the first position, the sleeve is in a first configuration such that fluid can pass through the passageway defined by the sleeve. When the actuator is in a second position, the sleeve is in a second configuration such that fluid is prevented from passing through the passageway defined by the sleeve. | 10-29-2015 |
| 20150342738 | PERIPHERAL SEALING VENOUS CHECK-VALVE - Among other things, there are disclosed embodiments of a valve implant that in particular examples are implantable within a blood vessel, which include a first set of elongate members, a second set of elongate members, and a hood affixed to the first set of elongate members. The first set of elongate members is resiliently deformable, and their distal ends are flared radially outward. The distal ends of the second set of elongate members are distal to the ends of the first set of elongate members. The hood is affixed to the first set of elongate members, and seals against the interior wall of the blood vessel in an expanded configuration. When blood flows from the proximal to the distal side of the valve implant, it presses on the hood, compressing the first set of elongate members, breaking the seal. | 12-03-2015 |
| 20160000566 | MRT-COMPATIBLE VALVE PROSTHESIS FOR USE IN THE HUMAN OR ANIMAL BODY FOR REPLACEMENT OF AN ORGAN VALVE OR A VESSEL VALVE - The invention relates to a biological or artificial valve prosthesis ( | 01-07-2016 |
| 20160000567 | MRT-COMPATIBLE VALVE PROSTHESIS FOR USE IN THE HUMAN OR ANIMAL BODY FOR REPLACEMENT OF AN ORGAN VALVE OR A VESSEL VALVE - The invention relates to a biological or artificial valve prosthesis ( | 01-07-2016 |
| 20160022409 | ENDOVASCULAR PERFUSION STENT GRAFT - An endovascular perfusion stent graft is provided that can include a graft device, a balloon and a valve. The graft device can be inserted into a vessel. The balloon can be inserted into the graft device and can temporarily restrict passage of fluid or gas received via a perfusion port when the balloon is inflated via a bulb that provides air pressure to the balloon. The perfusion port can be operatively connected to another perfusion port configured to allow the fluid or the gas to pass through another balloon. The valve can be attached to the graft device. | 01-28-2016 |
| 20160022421 | VENOUS VALVE, SYSTEM, AND METHOD WITH SINUS POCKET - A valve with a frame and valve leaflets that provide a sinus pocket. The valve provides for unidirectional flow of a liquid through the valve. | 01-28-2016 |
| 20160250024 | VALVE APPARATUS, SYSTEM AND METHOD | 09-01-2016 |
