Vascular closure device

Inventors

Walters, Greg • Grintz, Joseph T.

Assignees

Teleflex Life Sciences LLC

Abstract

A vascular closure device includes a release component, a delivery component, a sealing device and at least one actuator. The release component is elongate along a longitudinal direction, and defines a distal end and a proximal end. The delivery component extends along the release component such that at least the release component is movable relative to the delivery component. The delivery component includes a delivery tube body and defines a delivery tube channel. The sealing device has a toggle that is at least partially disposed within the release tube, a suture that is attached to the toggle and extends through the delivery tube channel, and a plug that is attached to the suture proximal to the toggle. The actuator is coupled to the release component and is in communication with the suture such that actuation of the actuator causes (i) the release component to move the proximal direction relative to the delivery component so as to release the toggle from the release component, and (ii) the suture to be pulled in a proximal direction to thereby place the filament in tension and urge the toggle against a distal end of the delivery component such that the toggle is oriented in a sealing position.

Core Innovation

The invention relates to a vascular closure device for sealing a puncture site in a vessel, including a release component and a delivery component that are relatively movable. The device carries a sealing implant that includes a toggle coupled to a filament and a plug disposed within a delivery tube, and a release tube and a delivery tube are disposed within each other while the toggle is restrained as the device is advanced into an access channel.

During deployment, the device is translated within an access sheath so that the toggle protrudes from the distal end of the access sheath inside the vessel while the toggle is maintained in an oblique angle relative to a longitudinal axis of the release tube. The delivery tube includes an offset surface that obliquely angles the toggle and maintains the toggle in the oblique angle while the toggle is retained by the release tube.

An actuator coupled to the release component releases the toggle by moving the release tube in a proximal direction relative to the delivery tube, such that the toggle is no longer restrained by the release tube and delivery tube. After release, the toggle is oriented into a sealing position with a second angle different than the first angle, and is fixed relative to the release tube in the sealing position, with tension applied to the filament while the toggle is in the sealing position.

Claims Coverage

Independent claims are identified for methods of sealing a puncture site in a vessel. Across the independent claims, the core inventive features total three groups: an access sheath and insertion of a puncture sealing device having a release tube, a delivery tube, a plug, a toggle, and a filament with an oblique maintained angle; a release mechanism using relative proximal movement of a release tube to release the toggle and change its angle into a sealing position; and applying tension to the filament while the toggle is in the sealing position.

The independent claims cover sealing a puncture site by inserting a puncture sealing device through an access sheath, maintaining the toggle in an oblique first angle while restrained by the release tube, translating the device so the toggle protrudes into the vessel, actuating relative proximal movement of the release tube to release and reorient the toggle into a sealing position at a second angle, and applying tension to the filament while the toggle is in the sealing position.

Stated Advantages

Documented Applications