16 results about "PROSTHETIC MITRAL VALVE" patented technology

The invention relates in some aspects to a device for use in anchoring an implant, including anchors, sutures, implants, clips, tools, lassos, and methods of anchoring among other methods. Anchors as disclosed herein could be utilized to secure a coaptation assistance device, an annuloplasty ring, an artificial valve, cardiac patch, sensor, pacemaker, or other implants. The implant could be a mitral valve ring or artificial mitral valve in some embodiments.

A collapsible and expandable prosthetic mitral valve stent is provided with improved recapture into a distal lumen of a delivery sheath. Various embodiments comprise a valve support within the interior of a stent frame and defining a flow channel therethrough, wherein the top or upstream of the valve support comprises a row, or a plurality, of stent cells that are bent radially inward at least partially over the flow channel. Some embodiments may comprise a recapture assist mechanism, such as an open paddle, attached to one or more of the inwardly bent stent cells and adapted to receive and / or engage a wire to aid in positioning, expansion, recapture and / or implanting the device in a patient's heart chamber.

The invention relates in some aspects to a device for use in anchoring an implant, including anchors, sutures, implants, clips, tools, lassos, and methods of anchoring among other methods. Anchors as disclosed herein could be utilized to secure a coaptation assistance device, an annuloplasty ring, an artificial valve, cardiac patch, sensor, pacemaker, or other implants. The implant could be a mitral valve ring or artificial mitral valve in some embodiments.

Apparatuses and methods are described that include a delivery device that delivers a valve frame (120) to a native mitral valve and positions the valve frame (120) such that the center of the valve frame (120) is off-centered with respect to the center of an annular plane of the annulus and is positioned towards a posterior side of the annular plane. The arms (124) of the valve frame (120) are deployed between chordae tendineae of the native mitral valve. The valve frame (120) is rotated to cause the arms (124) to pull the leaflets of the native valve radially inward. The frame body (121) of the valve frame (120) expands radially to capture the native leaflet and cause the valve frame (120) to be deployed off-center with respect to the center of the annular plane. Other applications are also described herein.

The invention relates to a device (1) for placing an artificial mitral valve chorda (30), the device comprising: - a central body (10); - two end portions (12, 14) arranged on either side of the central body (10), each comprising a through-opening (122, 142) and comprising two jaws (124, 144) defining the corresponding opening (122, 142); it being possible for each end portion (12, 14) to be placed in two distinct configurations: - a first configuration in which the jaws are in a closed position, in which position an artificial chorda strand passing through the corresponding opening (122, 142) cannot pass between the corresponding jaws (124, 144); - a second configuration in which the jaws are in an open position, in which position an artificial chorda strand passing through the corresponding opening (122, 142) can pass between the corresponding jaws.

Embodiments of delivery systems, devices and methods for delivering a prosthetic heart valve device to a heart chamber for expanded implementation are disclosed. More specifically, methods, systems and devices are disclosed for delivering a self-expanding prosthetic mitral valve device to the left atrium, with no engagement of the left ventricle, the native mitral valve leaflets or the annular tissue downstream of the upper annular surface during delivery, and in some embodiments with no engagement of the ventricle, mitral valve leaflets and / or annular tissue located downstream of the upper annular surface by the delivered, positioned and expanded prosthetic mitral valve device.

The invention belongs to the technical field of medical instruments, and particularly relates to an artificial mitral valve implant conveying system which comprises a guide wire, a conveying pipe is slidably connected to the outer surface of the guide wire, a suction assembly is fixedly connected to the bottom end of the conveying pipe, and a first protection assembly is fixedly connected to the bottom end of the outer surface of the conveying pipe. The top end of the outer surface of the conveying pipe is fixedly connected with a second protection assembly, and the middle of the outer surface of the conveying pipe is fixedly connected with a first electromagnetic block. Through the arranged first protection assembly, under the action of the first electromagnetic block, the second electromagnetic block is attracted, the second storage cavity can be driven to be far away from the first storage cavity, unlocking and releasing of the frame body can be achieved, operation is easy, convenient and rapid, the controllability of the releasing process is high, and the releasing sequence is that the upper support is released firstly, and after the upper support is completely unfolded and fixed, the second storage cavity can be driven to be far away from the first storage cavity. And then the first accommodating cavity is moved downwards to release the lower stent, so that the stable orientation of the stent system in the implanting process can be ensured.

A low-profile prosthetic valve for treating a native valve includes a radially expandable frame having an expanded configuration and a collapsed configuration. An atrial end of the prosthetic valve forms a flared shape that engages a surface of an atrium of the native valve. The flared shape flares downward toward a ventricle of the native valve upon initial expansion, and then inverts the flared shape to form a tapered shape that tapers toward the ventricle and flares toward the atrium of the native valve upon full expansion. The prosthetic valve also has a plurality of prosthetic valve leaflets that open and close to control fluid flow through the prosthetic valve.

Devices and methods are disclosed for the treatment or repair of regurgitant cardiac valves, such as a mitral valve. An illustrative annuloplasty device can be placed in the coronary sinus to reshape the mitral valve and reduce mitral valve regurgitation. An improved protective device can be placed between the annuloplasty device and an underlying coronary artery to inhibit compression of the underlying coronary artery by the annuloplasty device in the coronary sinus. In addition, the protective device can inhibit compression of the coronary artery from inside the heart, such as from a prosthetic mitral valve that exerts radially outward pressure toward the coronary artery. The annuloplasty device can also create an artificial inner ridge or retaining feature projecting into the native mitral valve region to help secure a prosthetic mitral valve.

A prosthetic mitral valve includes a stent frame and an anchor assembly coupled to and peripherally surrounding the stent frame. The anchor assembly includes atrial anchors on the inflow end, ventricular anchors on the outflow end, and a central waist portion disposed therebetween. The anchor assembly generally defines an hourglass shape wherein the atrial and ventricular anchors flare radially outward and the central waist portion has a relatively smaller diameter. The prosthetic valve may include a gasket disposed peripherally around the central waist portion to seal the space between the body of the valve and the native valve annulus to prevent paravalvular leakage without increasing the profile of the valve to allow for smooth insertion into and deployment from a delivery device. The prosthetic valve may alternatively include a sealing fabric surrounding the anchor assembly defining a radial protrusion around the central waist portion to seal the native annulus.

Prosthetic heart valve devices for percutaneous replacement of native heart valves and associated systems and method are disclosed herein. A prosthetic heart valve device configured in accordance with a particular embodiment of the present technology can include an anchoring member having an upstream portion configured to engage with tissue on or near the annulus of the native heart valve and to deform in a non-circular shape to conform to the tissue. The device can also include a mechanically isolated valve support coupled to the anchoring member and configured to support a prosthetic valve. The device can further include an atrial extension member extending radially outward from the upstream portion of the anchoring member and which is deformable without substantially deforming the anchoring member. In some embodiments, the upstream portion of the anchoring member and the extension member may be deformed while the valve support remains sufficiently stable.

Devices and methods are disclosed for the treatment or repair of regurgitant cardiac valves, such as a mitral valve. An illustrative annuloplasty device can be placed in the coronary sinus to reshape the mitral valve and reduce mitral valve regurgitation. An improved protective device can be placed between the annuloplasty device and an underlying coronary artery to inhibit compression of the underlying coronary artery by the annuloplasty device in the coronary sinus. In addition, the protective device can inhibit compression of the coronary artery from inside the heart, such as from a prosthetic mitral valve that exerts radially outward pressure toward the coronary artery. The annuloplasty device can also create an artificial inner ridge or retaining feature projecting into the native mitral valve region to help secure a prosthetic mitral valve.

Systems and methods for planning catheter-based delivery of objects, such as transseptal delivery of a prosthetic mitral valve to a patient's heart, are disclosed.

Valve holders and introducers for delivering a prosthetic heart valve to an implant site are in various embodiments configured to facilitate insertion of prosthetic valves through small incisions or access sites on a patient's body. The valve holders can also be configured to reduce or eliminate the occurrence of suture looping or other damage to the prosthetic valve during implantation. A valve holder according to embodiments of the invention includes features that reduce or eliminate mistakes during implantation of the prosthetic valves, such as a removable activator dial and a removable handle that prevent implantation of the valve prior to proper deployment or adjustment of the holder. An introducer is provided which can facilitate passing of a prosthetic valve between adjacent ribs of a patient. Valve holders and introducers according to the various embodiments can be used in minimally invasive procedures, such as thoracotomy procedures.

Devices and methods are disclosed for the treatment or repair of regurgitant cardiac valves, such as a mitral valve. An illustrative annuloplasty device can be placed in the coronary sinus to reshape the mitral valve and reduce mitral valve regurgitation. An improved protective device can be placed between the annuloplasty device and an underlying coronary artery to inhibit compression of the underlying coronary artery by the annuloplasty device in the coronary sinus. In addition, the protective device can inhibit compression of the coronary artery from inside the heart, such as from a prosthetic mitral valve that exerts radially outward pressure toward the coronary artery. The annuloplasty device can also create an artificial inner ridge or retaining feature projecting into the native mitral valve region to help secure a prosthetic mitral valve.