Class / Patent application number | Description | Number of patent applications / Date published |
623200410 | Sewing ring | 9 |
20080319543 | BIOPROSTHETIC HEART VALVE - A trileaflet biological prosthetic heart valve ( | 12-25-2008 |
20090157177 | Sewing Ring for a Prosthetic Tissue Valve - The invention provides a trileaflet semi-lunar prosthetic tissue valve for aortic, pulmonary, mitral, or tricuspid valve replacement. The valve is planar before attachment at an annulus of a valvular lumen, and non-planar upon attachment at the annulus of the defective valve. A sewing ring having a circumference greater than the annular circumference of annulus of the valve being replaced is also described and the sewing ring is placed at the approximate position of the annulus of the defective valve in a non-planar configuration. | 06-18-2009 |
20100312335 | IMPLANTABLE MECHANICAL HEART VALVE ASSEMBLY - A mechanical heart valve implantable as heart valve replacement comprising of an annular valve body with a central orifice and an exterior surface incorporating a suture ring having a plurality of suture tunnels, and a valve implantation flap assembly disposed on the valve body surface and wrapping around the suture ring. The inside lumen carries the occluder mechanism. The valve holder comprises of at least two parts, both parts having suture guiding grooves on the outer surface corresponding to and matching with the tunnels on the suture ring, such as to form a continuous path for the sewing material. The parts of the valve holder can be detached separately from the valve after taking all the sutures, the part on the ventricular side before lowering the valve into the heart and the other part after lowering and positioning the heart valve in the; desired position inside the heart. | 12-09-2010 |
20110054598 | Contoured Sewing Ring for a Prosthetic Mitral Heart Valve - A prosthetic mitral heart valve including a contoured sewing ring that better matches the mitral valve annulus. The sewing ring includes an inflow end and an outflow end, the outflow and having at least one raised portion. There may be two raised portions located approximately 120° apart from each other and designed to register with two anterior trigones of the mitral valve annulus. The sewing ring may be formed by a suture-permeable annular member surrounded by a fabric covering, the annular member desirably being molded of silicone. The raised portion(s) may gently curve upward to a height of about 2 mm above the adjacent portions of the outflow end of the sewing ring. The sewing ring may also be constructed so as to be more flexible around a posterior aspect than around an anterior aspect to accommodate calcified tissue more commonly found around the posterior annulus. The contoured sewing ring can be combined with various types of heart valve including bioprosthetic and mechanical valves. A bioprosthetic heart valve of the present invention may include a support stent having three outflow commissures alternating with three inflow cusps, with two of the commissures being located at the same place as two raised portions of the sewing ring. A method of implant includes tilting the prosthetic heart valve in the mitral annulus so that a posterior commissure angles away from the ventricular wall and reduces the chance of contact therebetween. | 03-03-2011 |
20110066237 | PROSTHETIC TISSUE VALVE - A prosthetic tissue valve for aortic, pulmonary, mitral or tricuspid valve replacement is described herein. A sewing ring for use with the prosthetic tissue valve is also described. The valve can have a circumference that is a predetermined distance larger than the circumference of an annulus in a defective valve. The valve can be substantially planar in an unstressed position before attachment at the annulus and substantially non-planar upon attachment in a biased position at the annulus. Methods are provided for placing the valve as described herein in the biased position within the annulus of the defective valve. | 03-17-2011 |
20110230962 | DYNAMICALLY ADJUSTABLE SUTURE AND CHORDAE TENDINAE - Embodiments of a dynamically adjustable artificial chordae tendinae implant are described. In some embodiments the implant includes a body portion, including an adjustable portion. In some embodiments, the implant includes a plurality of adjustable portions. In some embodiments the adjustable element can include a shape memory material. The adjustable portion can be configured to transform from a first conformation to a second conformation in response to an activation energy. In some embodiments, the activation energy can be one of electromagnetic energy, acoustic energy, light energy, thermal energy, electrical energy, mechanical energy, or a combination of energies. The implant couples a heart valve leaflet to a papillary muscle. Activation of the shape memory material regulates tension between the muscle and valve leaflet improving coaptation of heart valve leaflets, and reducing or eliminating regurgitation. | 09-22-2011 |
20130110231 | HEART VALVE SIZING RING AND METHOD | 05-02-2013 |
20140107774 | HEART VALVE SIZING RING FOR VALVE-SPARING AORTIC ROOT REMODELING PROCEDURES - A heart valve sizing ring is disclosed. The sizing ring includes an outer ring and an inner ring configured and arranged to couple to the outer ring. A tubular portion extends from the inner ring and has a plurality of suture holders arranged about an upper end thereof. The outer ring and inner ring having a pair of complementary mating surfaces configured and arranged to grip sutures therebetween when coupled together. When coupled around sutures, the assembled ring may be tightened down against the heart valve to test the fit as if the sizing ring were a similarly sized prosthetic heart valve ring. Commissures of the heart valve may be suspended from the suture holders of the tubular portion. The surgeon can then remove the sizing ring and replace it with a prosthetic ring. | 04-17-2014 |
20160143732 | COLLAPSIBLE VALVE HAVING PARAVALVULAR LEAK PROTECTION - A heart valve assembly ( | 05-26-2016 |