Supportless atrioventricular heart valve and minimally invasive delivery systems thereof
A supportless atrioventricular valve intended for attaching to a circumferential valve ring and papillary muscles of a patient comprising a singular flexible membrane of tissue or synthetic biomaterial, wherein a minimally invasive delivery system is provided through a percutaneous intercostal penetration and a penetration at the cardiac wall into a left atrium of the heart.
1. A delivery apparatus for accessing a left atrium of a patient through a cardiac wall, said delivery apparatus comprising a cup balloon located at a distal section of said delivery apparatus, wherein said cup balloon is configured with a plurality of internal passageways located between an inner wall and an outer wall of said cup balloon, said cup balloon being further configured with a securing mechanism capable of maintaining the cup balloon at a desired location relative to its surrounding environment during use, thereby defining an isolated enclosure bordered by said cup balloon and said cardiac wall wherein said securing mechanism comprises a plurality of suction ports located along a balloon rim of said cup balloon adapted for releasably securing said balloon rim onto said cardiac wall.
2. The delivery apparatus of claim 1 , wherein a suction pressure of the plurality of suction ports is in the range of −5 to −100 mmHg.
3. The delivery apparatus of claim 1 , wherein the cup balloon is made of a material selected from a group consisting of silicone, polyurethane, latex, and mixture thereof.
4. The delivery apparatus of claim 1 , wherein a pressure for inflating said cup balloon is in the range of 10 to 100 mmHg.
5. The delivery apparatus of claim 1 , wherein the delivery apparatus is made of a material selected from a group consisting of polyethylene, polypropylene, polycarbonate, nylon, polytetrafluoroethylene, polyurethane, stainless steel, Nitinol, titanium, polyimide, and polyester.