VASCULAR CLOSURE SYSTEM TOGGLE PLACEMENT

1 . A method of sealing a puncture site in a vessel, the method comprising the steps of:

positioning an access sheath such that a portion of the access sheath is disposed within the vessel through the puncture site, the access sheath defining a distal end, a proximal end, and an access channel that extends from the proximal end to the distal end along an insertion direction;

positioning a puncture sealing device into the access channel along the insertion direction, the sealing device having a release tube, a delivery tube disposed within the release tube, a plug disposed within the delivery tube, a toggle distal to the plug, and a filament that couples the toggle to the plug, the toggle defining at least a proximal end that is disposed within the release tube;

translating the sealing device within the access channel along the insertion direction such that the toggle protrudes from a distal end of the access sheath and into the vessel;

moving at least one of the delivery tube and the release tube relative to the other such that the proximal end of the toggle is released from the release tube; and

again moving at least one of the delivery tube and the release tube relative to the other such that a distal end of the release tube abuts the toggle to thereby orient the toggle in a sealing position.

2 . The method of claim 1 , wherein the first moving step comprises moving the release tube proximally relative to the delivery tube.

3 . The method of claim 2 , wherein the second moving step comprises moving the release tube distally relative to the delivery tube.

4 . The method of claim 1 , further comprising moving the toggle proximally such that the toggle is adjacent the puncture site while the toggle is in the sealing position.

5 . The method of claim 4 , further comprising pulling at least the delivery tube proximally such that the plug is removed from the delivery tube.

6 . The method of claim 5 , further comprising the step of tamping the plug against the puncture site to thereby seal the puncture site.

7 . The method of claim 6 , wherein the pulling step comprises pulling the delivery tube proximally such that the plug is removed from the delivery tube within the release tube and the tamping step is performed within the release tube.

8 . The method of claim 1 , further comprising the step of providing tension to the filament while the toggle is in the sealing position.

9 . The method of claim 8 , wherein the tension is provided prior to the second moving step.

10 . A method of controlling the orientation of a toggle of a puncture sealing device, the puncture sealing device further having a release tube, a delivery tube disposed within the release tube, and a plug disposed within the delivery tube and coupled to the toggle, the method comprising the steps of:

trapping a proximal end of the toggle between the release tube and the delivery tube while the puncture sealing device is being moved into a vessel through a puncture site of the vessel;

moving at least one of the release tube and the delivery tube relative to the other to thereby remove the proximal end of the toggle from between the release tube and delivery tube; and

again moving at least one of the release tube and the delivery tube relative to the other such that a distal end of the release tube abuts the toggle to thereby orient the toggle in a sealing position.

11 . The method of claim 10 , further comprising the step of applying tension to a filament that is coupled to the toggle while the toggle is in the sealing position.

12 . The method of claim 11 , wherein the tension is applied prior to the second moving step.

13 . The method of claim 11 , wherein the puncture sealing device further includes a filament that couples the plug to the toggle, and wherein the applying step comprises pulling the filament proximally relative to the delivery tube.

14 . The method of claim 10 , wherein the toggle is angled relative to the delivery tube when in the sealing position.

15 . The method of claim 10 , wherein the first moving step comprises moving the release tube proximally relative to the delivery tube.

16 . The method of claim 15 , wherein the second moving step comprises moving the release tube distally relative to the delivery tube.

17 . A method of sealing a puncture site in a vessel, the method comprising the steps of:

positioning an access sheath such that a portion of the access sheath is disposed within the vessel through the puncture site, the access sheath defining a distal end, a proximal end, and an access channel that extends from the proximal end to the distal end along an insertion direction;

positioning a puncture sealing device into the access channel along the insertion direction, the sealing device having a release tube, a delivery tube disposed within the release tube, a plug disposed within the delivery tube, a toggle distal to the plug, and a filament that couples the toggle to the plug, at least a portion of the toggle being restrained by at least one of the release tube and the delivery tube, such that the toggle is angled by a first angle relative to a central axis of the release tube;

while the toggle is restrained, translating the sealing device within the access channel along the insertion direction such that the toggle protrudes from a distal end of the access sheath and into the vessel;

releasing the toggle such that the toggle is no longer restrained by the release tube and the delivery tube; and

orienting the toggle into a sealing position with the release tube, such that the toggle is angled by a second angle relative to the central axis that is different than the first angle.

18 . The method of claim 17 , wherein the toggle is restrained by trapping a proximal end of the toggle between the release tube and the delivery tube.

19 . The method of claim 18 , wherein the releasing step comprises moving at least one of the delivery tube and the release tube relative to the other such that the proximal end of the toggle is released from the release tube.

20 . The method of claim 19 , wherein the releasing step comprises moving the release tube proximally relative to the delivery tube.

21 . The method of claim 19 , wherein the orienting step comprises, moving at least one of the delivery tube and the release tube relative to the other such that a distal end of the release tube abuts the toggle to thereby orient the toggle in the sealing position.

22 . The method of claim 21 , wherein the orienting step comprises moving the release tube distally relative to the delivery tube.

23 . The method of claim 18 , further comprising the step of providing a tension to the filament while the toggle is in the sealing position.

24 . The method of claim 23 , wherein the tension is provided prior to the orienting step.

25 . The method of claim 17 , wherein the first angle is greater than the second angle.