A medical device may include an implantable device for treating a body tissue structure. The implantable device may include a plurality of bodies spaced from adjacent bodies and arranged so as to be configured to extend around an exterior surface of a body tissue structure. The bodies may be configured to apply a static force to the body tissue in a relaxed state and may adjust or move in response to a radially outward force above a threshold level that is acting on one or more of the bodies. The bodies may be pliable and/or made with a pliable material. The bodies may be interconnected via interconnecting regions. One or more of the bodies may be configured to articulate so as to conform to movement of a body tissue structure. A skeletal component may or may not extend through one or more of the plurality of bodies.

A tubular prosthetic device for implantation into a body lumen includes a first part including a tubular lumen and a second part including an attachment member. The second part is secured to the first part via various configurations, where the device is capable of being reduced to a diameter less than the diameter of traditional devices, for ease of use during implantation. Methods of using the device are also provided.

A catheter includes a positional identifier / marker at a tip section for a medical implant that needs to be aligned rotationally and/or axially and/or in terms of tilting in a human or animal body. The positional identifier is shaped and/or arranged such that a rotational orientation and/or an axial orientation and/or a tilted orientation of the tip section relative to the surrounding tissue is discernable from the position and/or orientation of the positional identifier

A minimally-invasive annuloplasty ring for implant at a mitral annulus. The annuloplasty ring has an inner core member with a C-shaped plan view that generally defines an oval with a major axis and a minor axis, and is symmetric about the minor axis. A posterior portion of the core member bisected by the minor axis has a thicker radial dimension than a pair of free end regions terminating on an anterior side of the core member. The radial thickness smoothly transitions between the posterior portion and the end regions. The inner core member may be covered with a fabric, and is a superelastic metal so that it can be straightened out and delivered through an access tube. The curvatures and thicknesses around the core member are selected so that the strain experienced when straightened does not exceed 7-8%.

Methods and devices for transvascular prosthetic chordae tendinae implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.

An aortic graft assembly includes a tubular component that defines a wall aperture having a proximal end that extends perpendicular to a major longitudinal axis of the tubular aortic component, and a tunnel graft connected to the wall of the tubular aortic component and extending from the wall aperture toward a proximal end of the tubular aortic component. The aortic graft assembly is delivered to a patient through the wall aperture and into interfering relation with the tunnel graft to treat aortic aneurysms.

Methods and systems for rotationally aligning a commissure of a prosthetic heart valve with a commissure of a native valve are disclosed. In some examples, a delivery apparatus can include a first shaft configured to rotate around a central longitudinal axis of the delivery apparatus, a second shaft extending through the first shaft and having a distal end portion extending distally beyond a distal end portion of the first shaft, an inflatable balloon coupled to the distal end portion of the first shaft, and a third shaft surrounding the first shaft. The first shaft is configured to rotate within the third shaft and translate axially relative to the third shaft, and the third shaft includes a distal tip portion including a plurality of internal helical expansion grooves and a plurality of external helical expansion grooves that are configured to allow the distal tip portion to flex radially outward.

Embodiments of a delivery apparatus for implanting a prosthetic valve are disclosed. The delivery apparatus can include a handle, a first shaft extending from a distal end of the handle, a second shaft extending through a lumen of the first shaft and the handle, and a gripper located proximal to a proximal end of the handle. A proximal end of the second shaft can be connected to the gripper, and the gripper can be axially moveable relative to the handle such that axial movement of the gripper causes corresponding axial movement of the second shaft relative to the first shaft. The gripper can have a bottom surface that is substantially coplanar with a bottom surface of the handle.

A system and method for treating critical limb ischemia (CLI) including a radiopaque micro stent disposed for cross ankle stenting as well as retrograde pedal/tibial artery access, in conjunction with antegrade access for the recanalization of impaired tibial vessels. A radiopaque medical device is constructed from a tubular-shaped body having a thin wall defining a specific strut pattern. In an additional aspect, the present apparatus introduces a new radiopaque medical device, such as a stent, wherein the tubular body includes a super elastic, nickel-titanium (nitinol) alloy.

A stent and a preparation method therefor. The stent includes a stent substrate. The stent substrate is provided with at least one radiopaque structure thereon. Each radiopaque structure includes at least one radiopaque unit. A radiopaque material is inlaid in each radiopaque unit, and a ratio of the volume of the radiopaque material to the volume of the radiopaque unit ranges from 1.1 to 1.4. By the stent and the preparation method therefor, the interference fit between the radiopaque material and the radiopaque unit can be better implemented, so that the radiopaque material and the radiopaque unit have strong bonding force therebetween, and the problem of embolism caused by the drop of a radiopaque material is avoided.