Sutureless vascular anastomosis connection

摘要

Techniques for sutureless vascular anastomosis are described, including a connector having a tip configured to be inserted into a graft vessel, a body having a tine configured to engage tissue associated with a graft vessel, and a base having a front wing, a rear wing, and a barb, each of the front wing, the rear wing, and the barb being formed integrally with the base using a memory material, wherein the front wing, the rear wing, and the barb deploy at one or more pre-determined angles when a restraining force is removed, the restraining force keeping the front wing, the rear wing, and the barb in substantially axial alignment with the body.

主权项

1. A vascular anastomosis connector, comprising:
a connector having a continuous tubular structure between a first end and a second end opposite the first end, the connector comprising:
a connector tip disposed at the first end of the connector and configured to be inserted into a graft vessel;a connector base disposed at the second end of the connector and configured to be inserted into a main vessel, the connector base comprising:
a front wing comprising a shape memory material, positioned on a first side of the connector base and coupled to the first side at a front hinge;a front tine extending laterally from the front wing;a rear wing comprising the shape memory material, positioned on a second side of the connector base opposite the first side and coupled to the second side at a rear hinge, wherein the front wing and the rear wing are configured to deploy away from a central axis of the connector when inserted into the main vessel; anda rear tine extending laterally from the rear wing;a connector body disposed between the connector tip and the connector base and having at least one body tine configured to engage an interior surface of the graft vessel; andat least one barb extending from the connector and configured to pierce a wall of the main vessel and lock with an incision seal, wherein the connector body and the connector base are coupled along a diagonal plane, the diagonal plane representing an angle at which the connector body is configured to be coupled with the main vessel, and wherein the front wing and the rear wing when deployed, are positioned substantially parallel to each other, are substantially aligned with the diagonal plane, and are oriented in opposite directions to each other.