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7261732 |
Stent mounted valve
There is described a prosthetic valve to be inserted into a body lumen, the valve having leaflets that are spread apart during forward flow of fluid to create an orifice, and the leaflets coming...
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7018404 |
Conduit for aorta or pulmonary artery replacement
Prosthetic conduits include biocompatible material formed into a generally cylindrical section and an expanded section connected to the generally cylindrical section. The conduit has a lumen...
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6797000 |
Tri-composite, full root, stentless valve
A bioprosthetic heart valve is disclosed. In a first aspect of the invention, a prosthetic heart valve comprises three mammalian heart valve leaflets, each valve leaflet including a full root...
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6544285 |
Aortic root prosthesis with compliant sinuses
An aortic root prosthesis for being implanted into a patient during a valve sparing surgery as a replacement for a biological aortic root segment of an ascending aorta is disclosed. The aortic root...
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6491511 |
Mold to form stent-less replacement heart valves from biological membranes
A pair of templates form a mold for substantially flat biological membranes to shape the membrane into a configuration that, after trimming of excess tissue, is adapted for forming a replacement...
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6454798 |
Polymer heart valve with helical coaption surface
A polymer heart valve has a leaflet with a base geometry of a cylinder for simplicity and effective opening. A helical swept surface is added to the top of the cylinder to enhance stable coaption....
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6375679 |
Prosthetic valve sinus
The combination of a prosthetic valve and a sinus. The valve has a plurality of flexible leaflets for opening and closing the valve, each leaflet having an edge region attached to a frame of the...
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6342070 |
Stentless bioprosthetic heart valve with patent coronary protuberances and method of surgical use thereof
A stentless aortic bioprosthesis having patent, non-ligated coronary artery segments extending therefrom, and methods for surgical replacement of aortic and/or non-aortic (e.g., pulmonary) heart...
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6334873 |
Heart valve having tissue retention with anchors and an outer sheath
An apparatus and a method for constructing a heart valve prepared from autologous tissue. Three tissue leaflets are held in place with tissue anchors on a tissue mounting frame having an annular...
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6328763 |
Optimized geometry of a tissue pattern for semilunar heart valve reconstruction
A new and unique, optimized, two-dimensional heart valve tissue pattern, valve, and a method of reconstructing a three-dimensional semilunar heart valve, or portion thereof. In one preferred...
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6168614 |
Valve prosthesis for implantation in the body
A valve prosthesis (9) for implantation in the body by use of catheter (11) comprises a stent made from an expandable cylinder-shaped thread structure (2,3) comprising several spaced apices (4)....
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6102944 |
Methods of tissue heart valve assembly
Improved, adaptable tissue-type heart valves and methods for their manufacture are disclosed wherein a dimensionally stable, pre-aligned tissue leaflet subassembly is formed and its peripheral edge...
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5713953 |
Cardiac valve prosthesis particularly for replacement of the aortic valve
A stentless prosthesis is made completely from material, for example bovine pericardium, other than valve material. A projection of the valve sleeve allows reparatory operations on surrounding...
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5480424 |
Heart valve replacement using flexible tubes
This invention comprises a method of using tubular material to replace a heart valve during cardiac surgery. To create a replacement atrioventricular (mitral or tricuspid) valve, the tube inlet is...
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4629459 |
Alternate stent covering for tissue valves
A prosthetic heart valve comprising a stent having an annular base and a plurality of legs extending upwardly from said base; a valve element circumscribing said stent and attached thereto, said...
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4626255 |
Heart valve bioprothesis
A heart valve prosthesis has a supporting frame (22) with a circular cross-section, which is covered with a dacron fabric (23). On one end face the dacron fabric (23) is arranged to form a suture...
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4477930 |
Natural tissue heat valve and method of making same
A low profile natural tissue heart valve with a one-piece fabric covering is applied to a stent in a minimum number of steps so that virtually no seams are exposed. The one-piece covering serves...
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4470157 |
Tricuspid prosthetic tissue heart valve
A method and apparatus for providing a tricuspid heart valve that can be assembled with autogenous or foreign tissue using a prefabricated kit comprised of two stents that mate together and a...
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4218782 |
Heart valve prosthesis and method for the production thereof
A flexible non-stented heart valve prosthesis made from a flat piece of a stabilized biological membrane. The membrane is folded along one or more folding lines and attached to a flat flexible...
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4172295 |
Tri-cuspid three-tissue prosthetic heart valve
This invention relates to improvements in a tri-cuspid tissue prosthetic heart valve having a valve body with sewing holes provided at each interval between the cusps of the valve, which...
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4084268 |
Prosthetic tissue heart valve
A tissue heart valve has a cloth-covered stent which provides several layers of padding over the stent edges and an integral sewing ring while maximizing the internal valve diameter for a given...
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4035849 |
Heart valve stent and process for preparing a stented heart valve prosthesis
An anatomically configured stent for a tanned, expanded natural tissue heart valve, a valve prosthesis including the stent, and a process for preparing the prosthesis are disclosed. The stent...
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3983581 |
Heart valve stent
An anatomically configured stent for a tanned, expanded natural tissue heart valve and a valve prosthesis including the stent are disclosed. The stent comprises a frame whose interior configuration...
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3966401 |
Preparing natural tissue for implantation so as to provide improved flexibility
An arrangement for preparing natural tissue in the form of a heart valve, vessel or the like for implantation in which alternately tanning fluid under pressure is applied to a portion of the tissue...
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