Devices and methods for treating heart failure

Inventors

Forcucci, Stephen J. • Finch, Matthew J. • Magnin, Christopher J. • McNamara, Edward I. • Devellian, Carol A.

Assignees

Corvia Medical Inc

Abstract

A device for implanting into an atrial septum of a patient. In some embodiments, the device has a core region to be disposed in an opening in the atrial septum; a distal retention region adapted to engage tissue on a left atrial side of the septal wall; a proximal retention region adapted to engage tissue on a right atrial side of the septal wall; and a retrieval region comprising a plurality of retrieval members, each retrieval member comprising a connector at a proximal end, the connector being adapted to connect to a delivery system. The device has a delivery configuration and a deployed configuration, the core region, distal retention region and proximal retention region each having a smaller diameter in the delivery configuration than in the deployed configuration, the retrieval member connectors being disposed proximal to and radially outward from the opening in the deployed configuration.

Core Innovation

The invention relates to a device for implanting into an atrial septum of a patient, where the device includes a core region comprising a plurality of core segments surrounding a central opening. The core region is adapted and configured to be disposed in an opening in the atrial septum. The device further includes a distal retention region comprising a plurality of distal retention segments extending from the core segments and adapted to engage tissue on a left atrial side of the septal wall, and a proximal retention region comprising a plurality of proximal retention segments extending from the core segments and adapted to engage tissue on a right atrial side of the septal wall.

The device includes a retrieval region comprising a plurality of retrieval members each extending from an outward end of the proximal retention segments, where each retrieval member comprises a connector at a proximal end adapted to connect to a delivery system. The device is further configured to have a first configuration and a second configuration. In both configurations, the distal retention region engages the atrial septum in the left atrium and the proximal retention region engages the atrial septum in the right atrium.

In the first configuration, the plurality of retrieval members extend in an elongated profile, and the connectors at the proximal end of each retrieval member are proximate to each other. In the second configuration, the distal retention region and proximal retention region continue to engage the septal wall in the left and right atria, while the connectors at the proximal end of the retrieval members are disposed radially outward from the central opening of the core region.

Claims Coverage

Two independent claims are present: a device claim and a method claim. Across them, the claims are characterized by the same first and second configurations that preserve left- and right-atrial engagement by retention regions while changing the connector/disposition geometry of the retrieval members relative to the central opening.

The claim set covers a septum-crossing pressure relief device that uses a core opening with left/right retention engagement while connector placement changes between an elongated, connector-proximate first configuration and a radially outward second configuration, and a method that expands into the first configuration and releases retrieval members to transition into the second configuration.

Stated Advantages

Documented Applications