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US 8,574,245 B2Granted
Suture delivery device
AssigneeSilk Road Medical, Inc.
InventorsMichi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer, Tony M. Chou
Life of this patent
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Abstract
A suture-based vessel closure device can perform the dilation of an arteriotomy puncture and does not require previous dilation of the arteriotomy puncture by a separate device or by a procedural sheath dilator. The suture-based vessel closure device can place one or more sutures across the vessel access site such that, when the suture ends are tied off after sheath removal, the stitch or stitches provide hemostasis to the access site.
Claims7
A method of performing a procedure on a vascular or cardiac structure comprising:
- inserting a guidewire into the common carotid artery through a puncture in the wall of the common carotid artery;
- inserting a suture delivery device over the guidewire into the common carotid artery such that a distal tip of the suture delivery device dilates an opening of an arteriotomy into the artery, the distal tip having an outer surface that tapers at an angle of 3 to 7 degrees relative to a longitudinal midline of a distal portion of the device, the distal tip having a length of about 1 to 3 cm, and wherein the suture delivery device is used to dilate the opening of the arteriotomy without having previously dilated the opening using a catheter or introducer sheath;
- drawing at least one end of a suture outside the body of the patient using the suture delivery device such that the suture can be held until such time as the suture is to be tied off to create a permanent closure of the arteriotomy;
- removing the suture delivery device while leaving the guidewire in place;
- inserting a procedural sheath over the guidewire into the common carotid artery;
- inserting a therapeutic device or devices through the sheath to the treatment site, performing a therapeutic procedure, and removing the therapeutic device or devices from the sheath;
- removing the sheath;
- and
- tying off the ends of the suture to close the arterial access site.
6 more elements
Dependencies are inferred from the claim text.