The Foundry, Inc.

Edward DeWitt Gifford

Hanson S Gifford, Iii

Vrad W Levering

Iii Hanson S Gifford

Hanson S Iii Gifford

Systems and methods are provided for removal of clot material from a treatment site in a blood vessel, particularly in venous vasculature. A treatment device () can include a core member () having a distal portion () and an inner coil () surrounding the distal portion of the core member. A helical outer member () surrounds at least a portion of the inner coil, and a sheet of flexible material () extends between the inner coil and the helical outer member, such that the sheet extends helically around the inner coil to provide a surface for clot engagement at the treatment site.

Mechanical venous clot retrieval

Devices, systems, and methods for treating a blood flow passage are discloses herein. In one example, a treatment device includes an expandable element configured to be positioned within the passage and a reinforcing element. The expandable element may have an expanded configuration in which the expandable element defines a lumen therethrough. The reinforcing element may be positioned within the lumen of the expandable element. The reinforcing element may be coupled to the expandable element such that expansion of the expandable element causes the reinforcing element to radially expand, thereby creating a perfusion lumen through the device.

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Glastonbury, CT, United States of America

Edward DeWitt Gifford