14 results about "Annuloplasty rings" 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.

This invention provides a bicuspid aortic valve implantable annuloplasty ring, comprising two symmetrically arranged semi-annular bodies. The two ends of the two semi-annular bodies are connected in a saddle shape by a connecting post, and the connecting post extends upward by a predetermined length, forming the highest point of the annuloplasty ring. At the connection point, the two semi-annular bodies form a first predetermined angle. The semi-annular bodies are made of flexible material, and the connecting post is made of rigid material. This invention can be conveniently implanted into the bicuspid aortic valve annuli and can be operated within the aorta, eliminating the need for dissection outside the vessel wall.

A holder for an annuloplasty ring that detaches with one cut. The annuloplasty ring mounts around a periphery of the holder without the use of connecting sutures. The holder has a proximal plate defining a lip on one side of the ring, and a distal retainer that defines a second lip on the other side, the two lips retaining the ring around the holder periphery. The distal retainer is formed by two hinged wings. A truss suture maintains the holder in a trussed configuration while the annuloplasty ring is delivered and secured to the implantation site. Once the ring is secured at the annulus, the truss suture is severed with one cut, enabling the hinged wings to pivot and the holder to be pulled free of the ring.

The present disclosure describes a holder for an annuloplasty ring that is detached using a single cut. The annuloplasty ring is mounted around the periphery of the holder without the use of connecting sutures. The holder has a proximal plate that defines a lip on one side of the ring and a distal retainer that defines a second lip on the other side that retains the ring around the holder perimeter. The distal retainer is formed of two hinged wings. When the annuloplasty ring is delivered and secured to an implantation site, a truss suture maintains the holder in a trussed configuration. Once the ring is secured at the annulus, the truss suture is severed with a single cut, enabling the hinged wings to pivot and enabling the holder to be pulled away from the ring.

Systems and methods are provided for an annuloplasty device and delivery system for treating valvular regurgitation. The annuloplasty device (e.g., a transcatheter annuloplasty ring) may include a tube having anterior and posterior anchors that may transition from a constrained state within the tube to a deployed state in which anchors extend through windows of the tube into tissue at the native valve site. Each anchor may include valvular and atrial anchors as well as anchors having different shapes (e.g., a curved anchor and a non-curved anchor). The annuloplasty device may be delivered to the native valve site via a catheter and the annuloplasty device may be manipulated within the patient's heart using a delivery handle to selectively deploy anchors while closing the anterior-to-posterior distance of the valve to treat valvular regurgitation.

Systems and methods are provided for an annuloplasty device and delivery system for treating valvular regurgitation. The annuloplasty device (e.g., a transcatheter annuloplasty ring) may include a tube having anterior and posterior anchors that may transition from a constrained state within the tube to a deployed state in which anchors extend through windows of the tube into tissue at the native valve site. Each anchor may include valvular and atrial anchors as well as anchors having different shapes (e.g., a curved anchor and a non-curved anchor). The annuloplasty device may be delivered to the native valve site via a catheter and the annuloplasty device may be manipulated within the patient's heart using a delivery handle to selectively deploy anchors while closing the anterior-to-posterior distance of the valve to treat valvular regurgitation.

A surgical annulus, a mechanical valve, and a surgical biovalve are disclosed. The three cardiac surgical valve instruments preferably adopt a high valve ring or short valve angle design. By means of the high-valve-ring surgical valve ring, left ventricular outflow tract obstruction can be avoided during a mitral valve intervention operation in the future. A mechanical valve and a surgical bioprosthetic valve move up a leaflet fixing structure and leaflets through a high annulus or short valve angle design to retain leaflets and subvalvular structures as much as possible in future mitral and tricuspid valve operations to facilitate post-operative heart function improvement.

The invention provides a valve ring suture ring contraction instrument which comprises a multi-cavity tube, a mounting piece, an upper clamping arm, a lower clamping arm and a handle, the mounting piece is arranged at the far end of the multi-cavity tube, the mounting piece is provided with a first connecting part and a second connecting part, the lower clamping arm is rotationally connected to the first connecting part, the upper clamping arm is rotationally connected to the second connecting part, the upper clamping arm is provided with a probe hole, and the probe hole is communicated with the multi-cavity tube. The multi-cavity tube and the installation part are provided with communicated detection channels, detection rods capable of moving relative to the detection channels are arranged in the detection channels, the detection holes can be aligned to far-end ports of the detection channels so that the detection rods can stretch into the detection holes, and a control part capable of controlling the detection rods to move relative to the detection channels is arranged in the handle. According to the valve ring suture ring contraction instrument, the detection hole and the detection rod are arranged, so that the valve ring can be accurately clamped when ring contraction is carried out on the valve ring, and the technical problem that in the prior art, the valve ring cannot be accurately clamped when ring contraction is carried out on the valve ring is solved.

An annuloplasty ring includes an elastic elongated core having a first region and a second region, wherein the first region is more stretchable than the second region and is configured to be positioned at the commissure of a target native heart valve. The first and second regions enable the annuloplasty ring to both reconstruct the commissure of the leaflets of the diseased native heart valve and to establish a seal around the artificial heart to prevent paravalvular leakage after "annular valve in-circuit surgery".

1. Name of the product in this design: Valve reshaping ring (semi-ring). 2. Purpose of this design: An annuloplasty ring for rheumatic mitral valve repair surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

A split type precisely-anchorable transcatheter valve-in-ring system comprises a split transcatheter valve-in-ring anchoring stent (10) and a transcatheter artificial biological valve-in-ring (20), wherein the shape and structure of the transcatheter valve-in-ring anchoring stent (10) are matched with the real structure of the annuloplasty ring and supravalvular and infravalvular tissues after three-dimensional reconstruction based on imaging data of a patient who have undergone valve failure after implantation of a annuloplasty ring (30), the transcatheter valve-in-ring anchoring stent (10) is firstly delivered to the patient's failed annuloplasty ring for release, deformation and alignment with the supravalvular and infravalvular tissues of the failed annuloplasty ring; the transcatheter artificial biological valve-in-ring (20) is delivered to the transcatheter valve-in-ring anchoring stent (10) for release, the stent of the transcatheter artificial biological valve-in-ring (20) deforms and expands to the functional state of the transcatheter valve-in-ring, causing the transcatheter valve-in-ring anchoring stent (10) to deform again and combine with the expanded transcatheter valve-in-ring, and meanwhile, the re-deformation of the transcatheter valve-in-ring anchoring stent (10) causes the transcatheter valve-in-ring anchoring stent (10) to combine with the subvalvular structure again and anchor.

The application relates to the field of medical devices, in particular to an aortic valve annuloplasty system, which comprises a delivery device and an annuloplasty device, the annuloplasty device comprising an annuloplasty ring, three clamping and locking devices, an annuloplasty cord and a locking device, the annuloplasty cord being connected with the clamping and locking devices; the delivery device comprising a control catheter and an adjusting control, the control catheter being used for being connected with the clamping and locking devices, and the adjusting control being used for being connected with the locking device; the control catheter is operated to make the clamping and locking devices capture and anchor the valve leaflet tissue at the junction of the valve leaflets, and the locking device is used for being arranged at the central area of the aortic valve and sleeved on the periphery of the annuloplasty cord; in the application, the clamping and locking devices capture and anchor the valve leaflet tissue at the junction, so that the junction of the valve leaflets is closed, and in combination with the pulling action of the annuloplasty cord, the circumference of the valve annulus is effectively reduced, the double repair effect on the valve is realized, and the regurgitation problem of the aortic valve is effectively improved.

A heart valve repair apparatus is disclosed. The apparatus has a radially expandable ring having a first ring component connectable to a second ring component by a pair of securing members. The first and second ring components may be slideable through the pair of securing members, thereby radially adjusting the ring between a first dimension configuration and a second dimension configuration. In some example applications, the ring is dimensioned to be implanted into any one of the heart valves, the aortic valve, mitral valve, pulmonary valve and tricuspid valve. The ring may in some embodiments be used as an annuloplasty ring. The annuloplasty ring may be used to reshape a valve annulus, in particular to restore the annulus' normal shape and / or size.

Methods of delivering and using an annuloplasty ring to reshape a valve annulus are disclosed. The methods include obtaining an annuloplasty ring having an elastic inner core member. The elastic inner core member can be defined by a multi-stranded braided cable. The inner core member has an unstressed closed or open ring shape and a first elastic modulus that enables the core member to be compressed from the unstressed ring shape into a stressed narrow shape and enables the annuloplasty ring to reshape a native heart valve annulus. The methods can include converting the annuloplasty ring from the unstressed ring shape into the stressed narrow shape, passing the annuloplasty ring through an access tube positioned with a distal tip adjacent a native valve annulus, and expelling the annuloplasty ring from the distal tip of the access tube so that it self-converts back towards the unstressed ring shape.