Access site management system for percutaneous vascular access

Inventors

Agnihotri, Aashiish • Sandstrom, Jeffrey • Maurer, Steven M.

Assignees

Xdot Medical Inc

Abstract

The disclosure provides a dynamic vascular access and closure device for radial cinching of an access site. The device includes a tensioning tube, a resilient member disposed within the tensioning tube, and a plurality of sutures extending axially between a distal end of the tensioning tube and a proximal end of the tensioning tube. A proximal end of each of the plurality of sutures can be configured to attach to the resilient member such that movement of that suture causes compression or extension of the resilient member within the tensioning tube to provide cinching to the sutures.

Core Innovation

A dynamic vascular access and closure device for radial cinching uses a tensioning tube that contains a resilient member and a plurality of sutures extending axially between a distal end and a proximal end of the tensioning tube. A proximal end of each suture is configured to directly couple with the resilient member such that movement of the plurality of sutures causes compression or extension of the resilient member within the tensioning tube.

The device includes a tension lock having a first position and a second position. In the first position, the tension lock holds the resilient member in a compressed state, causing slack in the sutures, and in the second position, the tension lock permits extensions of the resilient member, causing tension in the sutures.

The resilient member is configured to transition between a first position to cinch a vascular access site situated between distal ends of the plurality of sutures when the distal ends are attached to a blood vessel, and a second position when the distal ends of the sutures are pulled apart to open the vascular access site, where a first length of the resilient member in the first position is greater than a second length in the second position. The device architecture further includes coupling of the sutures to vascular anchors, including embodiments where the vascular anchors are nitinol tube anchors and nitinol wire anchors, as well as alternative anchor types.

Claims Coverage

The partial content provides one independent claim describing the core dynamic radial cinching device. The inventive coverage centers on three inventive features, with dependent claims refining suture/anchor coupling features, resilient-member stop geometry, and tension-lock structures.

Across the provided claims, the inventive coverage centers on a tensioning tube containing a resilient member directly coupled to axially extending sutures, together with a tension lock that creates slack or tension. The resilient member length change supports transitioning between a cinching state and an opening state for a vascular access site, with dependents refining implementations such as suture/anchor coupling, nitinol anchor embodiments, resilient-member stop features, and tension-lock structures like a frangible bridge.

Stated Advantages

Documented Applications