Closure device
First Claim
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1. A method of closing an opening in a blood vessel, the method comprising:
- inserting a closure device at least partially through the opening and into the blood vessel, the closure device including a delivery tube, an actuator, and a closure element, the closure element comprising a body having a proximal portion, a distal portion, and a waist portion, a distal end of the delivery tube being configured with a bias and applies a radial compressive force to the closure element;
reconfiguring the distal portion of the closure element from a pre-deployed configuration to a deployed configuration, by pulling a distal end of the closure element in a proximal direction, while maintaining the proximal portion of the closure device in a pre-deployed configuration, wherein in the deployed configuration, one or more extensions of the distal portion protrude outward from the body beyond an outer edge of the opening in the blood vessel;
engaging an inside portion of the blood vessel distally from the opening in the blood vessel with the distal portion of the closure device by moving the closure device in a proximal direction;
following engaging the inside portion of the opening in the blood vessel, deploying the proximal portion of the closure element from the delivery tube;
reconfiguring the proximal portion of the closure element from the pre-deployed configuration to a deployed configuration by collapsing a collapsible portion of the body in an outward direction, wherein in the deployed configuration, one or more extensions of the proximal portion protrude outward from the body to engage an outside portion of the blood vessel proximally from the opening in the blood vessel; and
locking the proximal portion and the distal portion of the closure element in the deployed configuration by advancing a locking element formed on the actuator through a lumen of the proximal portion.
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Abstract
A closure device for closing an opening in tissue is provided. The closure device according the present invention includes a delivery system for deploying a closure element, wherein the closure element is movable between a delivery configuration and a deployed configuration to close an opening in tissue. The closure device of the present invention may further include a charge of hemostatic material.
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Citations
19 Claims
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1. A method of closing an opening in a blood vessel, the method comprising:
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inserting a closure device at least partially through the opening and into the blood vessel, the closure device including a delivery tube, an actuator, and a closure element, the closure element comprising a body having a proximal portion, a distal portion, and a waist portion, a distal end of the delivery tube being configured with a bias and applies a radial compressive force to the closure element; reconfiguring the distal portion of the closure element from a pre-deployed configuration to a deployed configuration, by pulling a distal end of the closure element in a proximal direction, while maintaining the proximal portion of the closure device in a pre-deployed configuration, wherein in the deployed configuration, one or more extensions of the distal portion protrude outward from the body beyond an outer edge of the opening in the blood vessel; engaging an inside portion of the blood vessel distally from the opening in the blood vessel with the distal portion of the closure device by moving the closure device in a proximal direction; following engaging the inside portion of the opening in the blood vessel, deploying the proximal portion of the closure element from the delivery tube; reconfiguring the proximal portion of the closure element from the pre-deployed configuration to a deployed configuration by collapsing a collapsible portion of the body in an outward direction, wherein in the deployed configuration, one or more extensions of the proximal portion protrude outward from the body to engage an outside portion of the blood vessel proximally from the opening in the blood vessel; and locking the proximal portion and the distal portion of the closure element in the deployed configuration by advancing a locking element formed on the actuator through a lumen of the proximal portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of closing an opening in a blood vessel, the method comprising:
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inserting a closure device at least partially through the opening, the closure device including a delivery tube, an actuator, and a closure element, the closure element comprising a body having a proximal portion, a distal portion, and a waist portion, a portion of the distal portion of the closure element extending distally from a delivery tube distalmost end prior to inserting the closure device at least partially through the opening, and the proximal portion of the closure element being disposed, within the delivery tube prior to inserting the closure device at least partially through the opening, adjacent a blocking protrusion disposed within a lumen of the delivery tube that prevents proximal movement of the closure device within the lumen of the delivery tube; reconfiguring the distal portion of the closure element from a pre-deployed configuration to a deployed configuration, by pulling the distal end of the closure element in a proximal direction, while maintaining the proximal portion of the closure device in a pre-deployed configuration, wherein in the deployed configuration, one or more extensions of the distal portion protrude outward from the body; engaging the inside portion of the opening in the blood vessel with the distal portion of the closure device by moving the closure device in a proximal direction; and reconfiguring the proximal portion of the closure element from the pre-deployed configuration to a deployed configuration by collapsing a collapsible portion of the body in an outward direction, wherein in the deployed configuration, one or more extensions of the proximal portion protrude outward from the body. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification