Methods, systems, and devices for resizable intra-atrial shunts
First Claim
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1. An expandable device adapted for percutaneous delivery into a membrane of a patient'"'"'s heart, the device comprising:
- first and second anchors adapted to contact, respectively, a first side and a second side of the membrane;
a retainer interconnecting the first and second anchors, the retainer being adapted to permit blood to flow across the membrane at a first flow rate; and
a shunt removably attachable to the retainer, the shunt being receivable within the retainer so as to enable the device to conduct blood across the membrane at a second flow rate, the shunt configured to be percutaneously delivered to the retainer after the retainer is implanted into the membrane of the patient'"'"'s heart, wherein the shunt comprises a frame having at least one aperture associated with a flap releasably secured in place with a bio-resorbable material so as to partially close the aperture.
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Abstract
Devices and methods for treating heart disease by normalizing elevated blood pressure in the left and right atria of a heart of a mammal are disclosed. Devices may include an adjustable hydraulic diameter and/or a removable and/or replaceable shunt portion. Devices may include absorbable materials, the absorption of which directly or indirectly causes alterations of the fluid flow capacities the devices.
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Citations
23 Claims
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1. An expandable device adapted for percutaneous delivery into a membrane of a patient'"'"'s heart, the device comprising:
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first and second anchors adapted to contact, respectively, a first side and a second side of the membrane; a retainer interconnecting the first and second anchors, the retainer being adapted to permit blood to flow across the membrane at a first flow rate; and a shunt removably attachable to the retainer, the shunt being receivable within the retainer so as to enable the device to conduct blood across the membrane at a second flow rate, the shunt configured to be percutaneously delivered to the retainer after the retainer is implanted into the membrane of the patient'"'"'s heart, wherein the shunt comprises a frame having at least one aperture associated with a flap releasably secured in place with a bio-resorbable material so as to partially close the aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification