A61F2230/0026

Methods for improved prosthetic heart valve with leaflet shelving

Described embodiments are directed toward prosthetic valve leaflets of particular configurations that control bending character. In embodiments provided herein, a valve leaflet is provided with a planar zone that is bounded at a planar zone base by a straight line, wherein the leaflet is operable to bend along a base of the planar zone.

METHODS AND SYSTEMS FOR DELIVERING A FILLED PROSTHETIC BLADDER INTO A SURGICAL CAVITY
20220054254 · 2022-02-24 ·

A prosthetic insertion apparatus and related methods of use in delivering filled prosthetic bladders through a skin incision and into a surgical cavity or pocket. The prosthetic insertion apparatus imparts control and retention properties to a surgical professional such the prosthetic bladder can be oriented and manipulated into the surgical cavity without risk of inadvertent dropping of the prosthetic bladder and without imparting damaging stress or torque to the bladder. Suitable materials can be utilized that are selected as having advantageous properties including lubricity, rigidity, easily sterilizable, and high strength.

STENT GRAFT DEVICE

The present disclosure relates to stent graft devices for endovascular repair of aneurysms. A stent graft device according to the present disclosure comprises: a membrane defining a lumen between a proximal end and a distal end of the membrane, the lumen for fluid communication distally therethrough; a plurality of fenestrations disposed on the membrane and fluidly communicable with the lumen; and a plurality of protrusions carried by the membrane, each protrusion extending inwardly into or outwardly from the lumen. Fluid communicated from the plurality of fenestrations is deflectable or deflected by the plurality of protrusions.

Stents, systems, and methods for gastrointestinal tract treatment

The present disclosure relates generally to stents, systems, and methods for gastrointestinal treatment. In some embodiments, a stent may include a tubular scaffold having a first end opposite a second end, wherein a lumen extends between the first and second ends. The tubular scaffold may include a flared section and a medial section extending from the flared section, wherein a first diameter of the flared section is greater than a second diameter of the medial section. The stent may further include a liner extending partially along a surface of the tubular scaffold, wherein the liner is spaced from an anchoring region of the flared section to promote tissue ingrowth with the flared section.

Optimal ratio of polar and bending moment of inertia for stent strut design
09782280 · 2017-10-10 · ·

An intravascular stent is provided to be implanted in coronary arteries and other body lumens. The transverse cross-section of at least some of the stent struts have a ratio of polar and bending moments of inertia, which results in optimal resistance to stent twisting. This resistance to twisting ratio for the stent struts minimizes out of plane twisting of the struts or projecting edges of the struts when the stent is expanded from a compressed diameter to an expanded diameter in a coronary artery.

Embolic debris deflector

The disclosure pertains to debris diverters for use within the aorta and methods of diverting or redirecting emboli and other debris away from the carotid arteries to prevent cerebral embolization. The disclosure includes aortic diverters positionable in the ascending aorta in order to divert embolic material of all sizes away from the carotid arteries, thereby washing emboli downstream into the thoracic and peripheral vasculature. The debris diverters of the disclosure are adapted to be placed in the ascending and transverse aorta via the left subclavian artery in order to divert embolic material away from the carotid arteries and methods of use therefor.

Intraocular lens, in particular ciliary intraocular lens
09744027 · 2017-08-29 · ·

The present invention relates to an intraocular lens, in particular a ciliary intraocular lens having at least one optic and one haptic element. In order to create an intraocular lens that enables a symmetrical deformation of one or several optic elements of the intraocular lens as well as a relative displacement of these optic elements on their optical axis to each other, so that a sufficient change in refractive power is achieved, it is proposed that the haptic element is composed of several haptic elements, preferably connected to the optic element in equiangular manner, wherein a) the haptic elements have an essentially trapezoidal portion in a plan view and the bases of two adjacent haptic elements are connected to each other at the transition to the optic element and b) the haptic elements on the side of the trapezoidal portions facing away from the optic element have a part of annular haptic ring segment, wherein the haptic ring segments of two adjacent haptic elements in the unloaded state are spaced slightly away from one another, Furthermore, a method for implantation of an intraocular lens having at least one optic element and one haptic element, and a filling is claimed. According to the invention, the intraocular lens is folded or rolled to reduce the volume so that the filling is at least partially disposed in one or possibly several reservoir/s and the filling is at least partially pressed from the reservoir into the cavity after implantation.

Prosthetic valves, frames and leaflets and methods thereof

Described embodiments are directed toward prosthetic heart valve leaflets of particular shapes that control bending character. In accordance with an embodiment, a prosthetic heart valve comprises a leaflet frame having a generally tubular shape with attached film. The leaflet frame defines a plurality of leaflet windows. The film defines at least one leaflet extending from each of the leaflet windows. Each leaflet attachment zone on the leaflet frame has substantially the shape of an isosceles trapezoid having two leaflet sides, a leaflet base and a leaflet free edge opposite the leaflet base. The two leaflet sides diverge from the leaflet base, wherein the leaflet base is substantially flat.

RADIAL EXPANSION CONTROL MECHANISMS FOR INTRALUMINAL DEVICE

An intraluminal device and a method of removing a clot from a body lumen with an intraluminal device may be provided. The intraluminal device may include a hollow elongated shaft and a radially-expandable mesh segment situated distal to the elongated shaft. The elongated shaft may be secured relative to a first portion of the mesh segment. The intraluminal device may additionally include a core wire affixed to a second portion of the mesh segment and extending through the elongated shaft. The elongated shaft may be configured to radially expand the mesh segment by axially moving the first portion of the mesh segment relative to the second portion of the mesh segment. In addition, the core wire may be configured to radially expand the mesh segment by axially moving the second portion of the mesh segment relative to the first portion of the mesh segment.

PROSTHETIC HEART VALVE HAVING MULTI-LEVEL SEALING MEMBER

Embodiments of a prosthetic heart valve are disclosed. An implantable prosthetic valve may be radially collapsible to a collapsed configuration and radially expandable to an expanded configuration. The prosthetic valve may comprise an annular frame, a leaflet structure positioned within the frame and a plurality of outer skirts positioned around an outer surface of the frame, each outer skirt comprising an inflow edge secured to the frame and an outflow edge secured at intervals to the frame. The plurality of outer skirts may include a first outer skirt and a second outer skirt, wherein in the expanded configuration the first and second outer skirts include openings unsecured to the frame between the intervals. The inflow edge of the first annular outer skirt may be secured to the frame with sutures including radiopaque material. The first annular outer skirt may include radiopaque dye.