A method and devices for relieving pressure in the left atrium of a patient's heart is disclosed. The method includes using an ablative catheter in a minimally invasive procedure to prepare an opening from the coronary sinus into a left atrium of the patient's heart. Once the opening is prepared, the opening may be enlarged by a technique such as expanding a balloon within the opening. A stent is then placed within the coronary sinus of the patient, with a transverse portion expanding within the opening, allowing blood to flow from the left atrium to the coronary sinus and then to the right atrium. Pressure within the left atrium is thus relieved..

A blood flow regulator for creating a shunt in the heart, comprising; a proximal element having a general disc-shape, defined by a braid of one or more wires extending about a central aperture of the proximal element; a distal element having a general disc-shape, defined by a braid of one or more wires extending about a central aperture of the distal element; and a third element defining a neck section intermediate the proximal and distal elements and forming a cavity having a diameter no greater than a diameter of each of the distal and proximal elements, wherein said distal element comprises at least one loop of a wire extending radially outwardly from a center of the distal element and returning towards said center of said distal element.

A differential pressure regulating device is provided for controlling in-vivo pressure in a body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.

A method and devices for relieving pressure in the left atrium of a patient's heart is disclosed. The method includes using an ablative catheter in a minimally invasive procedure to prepare an opening from the coronary sinus into a left atrium of the patient's heart. Once the opening is prepared, the opening may be enlarged by a technique such as expanding a balloon within the opening. A stent is then placed within the coronary sinus of the patient, with a transverse portion expanding within the opening, allowing blood to flow from the left atrium to the coronary sinus and then to the right atrium. Pressure within the left atrium is thus relieved.

A method comprises delivering a first implant to an orifice of a chamber of a heart, anchoring the first implant at the orifice, delivering a sensor device to the orifice, and coupling the sensor device to the first implant.

A sensor implant system comprises a shunt implant comprising a central flow portion configured to maintain an opening through a tissue wall and a sensor implant device. The sensor implant device comprises a shunt body configured to fit at least partially within the central flow portion of the shunt implant and a sensor device coupled to the shunt body.

A sensor implant system comprises a shunt body comprising a central flow portion configured for placement at least partially within an opening of a tissue wall and the sensor implant system comprises a sensor implant device comprising a sensor body. The sensor implant device is configured for placement within the opening of the tissue wall and between the central flow portion of the shunt body and an inner wall of the opening of the tissue wall.

A blood flow regulator for creating a shunt in the heart, comprising; a proximal element having a general disc-shape, defined by a braid of one or more wires extending about a central aperture of the proximal element; a distal element having a general disc-shape, defined by a braid of one or more wires extending about a central aperture of the distal element; and a third element defining a neck section intermediate the proximal and distal elements and forming a cavity having a diameter no greater than a diameter of each of the distal and proximal elements, wherein said distal element comprises at least one loop of a wire extending radially outwardly from a center of the distal element and returning towards said center of said distal element.

A differential pressure regulating device is provided for controlling in-vivo pressure in body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.

An insertion device that allows gaining access to the left ventricle of the heart, via the tissue forming the wall of the right ventricle and via the ventricular septum, which includes a tubular shaft with a lumen extending there through, the shaft comprising distal, proximal and central sections, whereby the distal and proximal sections are disc-shaped extended thus forming each a double disc and whereby the central section links the distally placed double disc with the proximally placed double disc and whereby pressure valves are fixed inside the shaft preferably on its distal and proximal end.