Devices and methods for coronary sinus pressure relief
AssigneeCorvia Medical, Inc.
InventorEdward McNamara
Life of this patent
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Abstract
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.
Claims22
A stent for use in a patient, comprising:
- a plurality of struts;
- and
- a plurality of intersections joining the struts to form a stent having a longer cylindrical portion and a shorter cylindrical portion adjacent the longer cylindrical portion and extending beyond the longer cylindrical portion in a direction perpendicular to an axis of the longer cylindrical portion,
- wherein the longer cylindrical portion is adapted to fit into and bear against a coronary sinus and wherein the shorter portion is adapted to form an opening from the coronary sinus to a left atrium of the patient.
A stent for use in a patient, comprising:
- a longer, radially-expanding portion adapted for placement in a coronary sinus of the patient;
- and
- a shorter portion adjacent and joined to the longer, radially-expanding portion, the shorter portion extending beyond the longer, radially-expanding portion in a direction perpendicular to an axis of the longer radially-expanding portion, the shorter portion adapted for placement within a left atrium of the patient,
- wherein the longer, radially-expanding portion is adapted to bear against a wall of the coronary sinus and wherein the shorter portion is adapted to form an opening between the left atrium and the coronary sinus of the patient.
A method for relieving intracardial pressure, the method comprising:
- providing an opening between a left atrium of a heart and a coronary sinus;
- and
- allowing blood to flow from the left atrium into the coronary sinus, thus relieving pressure.
A method for relieving intracardial pressure, the method comprising:
- furnishing a stent suitable for implantation into a coronary sinus of a patient, the stent suitable for extending from the coronary sinus to within a left atrium of the patient and for maintaining communication between the left atrium and the coronary sinus;
- preparing an opening into the left atrium using at least one instrument in the coronary sinus;
- maneuvering the stent into the coronary sinus to a position near the opening;
- and
- deploying a portion of the stent into the opening, wherein the stent maintains communication between the left atrium and the coronary sinus to relieve pressure within the left atrium.
A method for relieving intracardial pressure, the method comprising:
- furnishing a stent suitable for implantation into coronary sinus of a patient, the stent suitable for extending from the coronary sinus to within a left atrium of the patient and for maintaining communication between the left atrium and the coronary sinus;
- preparing an opening in a wall between the left atrium and the coronary sinus;
- maneuvering the stent to a position near the opening;
- and
- deploying the stent into the opening, wherein the stent maintains communication between the left atrium and the coronary sinus.
Dependencies are inferred from the claim text.