Patent classifications
A61F2210/0019
Retrievable self-expanding non-thrombogenic low-profile percutaneous atrioventricular valve prosthesis
An atrioventricular prosthesis device is provided. The device includes a frame at least partially defining and enclosing a central cavity, the frame having a distal portion, a proximal portion, and a middle portion connected therebetween. The device further includes a valve construct formed, at least in part, from a cell growth scaffold, at least partially disposed within the central cavity defined by the frame. The valve construct includes: an annular portion defining an aperture and being connected to the frame for positioning the valve construct within the central cavity of the frame, and a plurality of leaflets extending longitudinally and radially inward from the annular portion. The frame and valve construct are transitionable to a deployed state, in which a diameter of at least a portion of the frame and the valve construct substantially conform to a diameter of a tricuspid and/or mitral valve opening.
SHAPE MEMORY ARTICLES AND METHODS FOR CONTROLLING PROPERTIES
Methods for controlling properties of structural elements of implantable medical devices, where the structural elements contain shape memory alloys (SMAs) include promoting or inhibiting in vivo formation of R-phase crystal structure or converging or separating the R-phase from the austenite phase.
Stent retention
A system and method for a stent delivery system, the delivery system having a catheter and a balloon coupled to a distal portion of the catheter. The catheter with the radially expandable member is inserted into a cavity in a mold. Heat and pressure are applied for a period of time which inflates the balloon and imparts a shape memory to a portion of the balloon. The balloon is removed from the cavity of the mold with a shape memory.
OCULAR IMPLANT WITH STIFFNESS QUALITIES, METHODS OF IMPLANTATION AND SYSTEM
Described herein are devices and methods for treating eye conditions. Described is an ocular implant including an elongate member having an internal lumen forming a flow pathway, at least one inflow port communicating with the flow pathway, and at least one outflow port communicating with the flow pathway. The elongate member is adapted to be positioned in the eye such that at least one inflow port communicates with the anterior chamber, at least one outflow port communicates with the suprachoroidal space to provide a fluid pathway between the anterior chamber and the suprachoroidal space when the elongate member is implanted in the eye. The elongate member has a wall material imparting a stiffness to the elongate member. The stiffness is selected such that after implantation the elongate member deforms eye tissue surrounding the suprachoroidal space forming a tented volume.
SHAPE MEMORY BIORESORBABLE POLYMER PERIPHERAL SCAFFOLDS
Bioabsorbable scaffolds having high crush recoverability, high fracture resistance, and reduced or no recoil due to self expanding properties at physiological conditions are disclosed. The scaffolds are made from a random copolymer PLLA and a rubbery polymer such as polycaprolactone.
BALLOON EXPANDED POLYMER STENT
A stent made from a material comprising a polymer is disclosed. The stent has a pre-crimp diameter and a wall thickness such that a ratio of the pre-crimp diameter to the wall thickness is between 30 and 60. The stent has a pattern of interconnected elements. The interconnected elements including a plurality of rings connected by links, wherein each ring includes struts and crowns, and the struts are configured to fold at the crowns when the stent is crimped to the balloon.
RADIALLY COLLAPSIBLE FRAME FOR A PROSTHETIC VALVE AND METHOD FOR MANUFACTURING SUCH A FRAME
The present invention relates to a radially collapsible frame (1) for a prosthetic valve, the frame (1) comprising an outflow end region (3) at a proximal end of the frame (1) and an inflow end region (2) at a distal end of the frame (1), opposite to the outflow end region (3). The frame (1) further includes at least two radially spaced commissure attachment regions 910, 10′, 10″) and a cell structure (30), composed of a plurality of lattice cells being arranged radially around a flow axis of the frame (1) and connecting the at least two commissure attachment regions (10, 10′, 10″). Finally, at least one anchoring/positioning arch (20, 20′, 20″) is provided, wherein said at least one anchoring/positioning arch (20, 20′, 20″) radially overlaps the cell structure (30) at least partially. In order to form the inventive frame from as a single piece, the invention further relates to a method comprising bending the at least one anchoring/positioning arch (20, 20′, 20″) towards the cell structure (30) of the frame (1).
IMPLANT FABRICATION USING THREE-DIMENSIONAL WOVEN FABRIC
A method of fabricating a docking device involves implementing a three-dimensional (3D) weaving technique to form a 3D textile structure using a plurality of different types of fibers, heating the 3D textile structure on a shape-setting mold at a temperature above a melting point of a first type of fiber of the plurality of different types of fibers to set a cylindrical shape of the 3D textile structure, maintaining the 3D textile structure on the shape-setting mold to cool off for a period of time, and removing the 3D textile structure from the shape-setting mold.
METHODS OF FORMING HEAT SET ANNULOPLASTY RINGS
An annuloplasty repair segment for heart valve annulus repair and a method for forming. A multi-stranded cable replaces solid core wire for both the tricuspid and mitral valves which allows for greater deployment flexibility for minimally-invasive surgical (MIS) implant, while still maintaining the required strength and similar tensile properties of solid-core wire. The particular shape of the annuloplasty ring is fixed using a heat setting process including heating the flexible core member to a temperature higher than 500° C. and holding it in a desired heat-set saddle shape for a period of time. The core is then rapidly cooled to impart physical properties such that the flexible core member can be straightened, during implantation, to fit through a tubular access device and regain the heat-set saddle shape after exiting the access device and, when attached to the native heart valve, the flexible core member is strong enough to remodel the native heart valve.
Replacement cardiac valves and methods of use and manufacture
Prosthetic mitral valves and their methods of manufacture and use.