A stent comprises a framework that includes a sequence of cells that each occupy a discrete segment of the stent length, and each of the cells includes a plurality of struts with ends connected at respective vertices. In some forms the hollow cylindrical shape of the framework is moveable among a loading diameter that is smaller than a tube diameter, which is smaller than an expanded diameter, and every strut of the framework is oriented parallel to the stent axis when the hollow cylindrical shape is at the tube diameter. In other forms the framework includes T-bars that connect adjacent cells, where the T-bars have a column that has a minimum width perpendicular to the long axis that is wider than a maximum width of each of the struts, and the column defines at least one slot. In still other forms, the framework exhibits geometries that facilitate a high packing density for the framework when the stent is in a compressed tube or loading configuration.

This application relates to a stent inserted in an eustachian tube for treatment of eustachian tube dysfunction. In one aspect, the stent includes a pressure controller which blocks the eustachian tube and is opened/closed according to a pressure difference between front and rear portions thereof to control a pressure in the eustachian tube. The stent may also include a eustachian tube expansion portion which is connected to the pressure controller and has a hollow portion passed therein to make a fluid move in back and forth directions of the eustachian tube, and is inserted in the eustachian tube to expand the eustachian tube by transforming a shape thereof in a radial direction of the eustachian tube.

A method for creating a personalized stent or stent graft for a blood vessel with a saccular aneurysm includes: receiving a 3D model of the blood vessel with the saccular aneurysm; and generating a model of a personalized stent or stent graft that comprises a net shaped to fit along internal walls of the blood vessel and a covering positioned with respect to the net such as to cover an ostium of the aneurysm.

A stent graft for placement in a vessel of a patient, the stent graft that has a tubular body of graft material, the tubular body having a proximal inflow end, a distal outflow end, a main lumen therethrough, a longitudinal access, and a sidewall from the first end to the second end. At least one stent is along the length of the tubular body. One or more shaped recesses are formed of a concave or recessed portion of graft material that extends into the lumen of the stent graft. A fenestration is in the recessed portion with a fenestration and an internal branch extends from the or each fenestration toward the proximal end of the tubular body of graft material. The internal branch may have a tubular portion and a funnel portion, wherein the tubular portion extends into the main lumen and the enlarged funnel portion is attached to sidewall and forms the at least one shaped recess.

The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.

The invention relates to a medical device and a method of using it. The device is a stent which can be percutaneously deliverable with (or on) an endovascular catheter or via other surgical or other techniques and then expanded. The stent is configured to have a central portion defined by “open” cells and at least two end portions, defined by “closed” cells, spaced apart and directly connected to the distal and proximal ends of the central portion of the stent. The stent may also optionally have a covering or a lattice with openings.

Various embodiments for an endovascular implantable device (and variations thereof) that virtually eliminates the problem of stent foreshortening phenomena in which the length of a stent or prosthesis shortens as the prosthesis is expanded in the biological vessel.

Various embodiments for an endovascular implantable device (and variations thereof) that virtually eliminates the problem of stent foreshortening phenomena in which the length of a stent or prosthesis shortens as the prosthesis is expanded in the biological vessel.

In some examples, the disclosure describes an annuloplasty device that comprises a tube-like structure configured to extend around at least part of a circumference of an annulus of a cardiac or vascular valve of a patient, and at least one anchor configured to anchor the tube-like structure to the annulus. The tube-like structure is configured to decrease a distance between valve leaflets that extend from the annulus.

An expandable stent for implantation in a body lumen, such as an artery, is disclosed. The stent consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The link pattern is optimized to enhance longitudinal flexibility and high longitudinal strength compression of the stent.