Suture Delivery Device

• US 20160242764A1
• Filed: 02/22/2016
• Published: 08/25/2016
• Est. Priority Date: 02/24/2015
• Status: Active Application

• Current Assignee: Silk Road Medical, Inc.
• Original Assignee: Silk Road Medical, Inc.
• Inventors: Voss, Laveille K., Garrison, Michi E.
• Application Number:
  US15/049,637
• Publication Number:
  US 20160242764A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/06061 Holders for needles or sutures, e.g. racks, stands hand-held holding instruments A61B17/0483; holders for articles A61B50/20; racks for syringes or for hypodermic or infusion needles A61M5/008
• CPC Class Codes: A61B 2017/0065 the implement being an adhesive
• CPC Class Codes: A61B 2017/00654 entirely comprised between the two sides of the opening
• CPC Class Codes: A61B 2017/00663 the implement being a suture
• CPC Class Codes: A61B 2017/00672 Locating means therefor, e.g. bleed back lumen
• CPC Class Codes: A61B 2017/0472 Multiple-needled, e.g. double-needled, instruments
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence

Abstract

A suture-based vessel closure device is configured to close a carotid artery puncture site. 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 hem ostasis to the access site. The sutures can be applied either prior to insertion of a procedural sheath through the arteriotomy or after removal of the sheath from the arteriotomy.

Claims

1. A device for closing an aperture in a wall of a blood vessel, the device comprising:

a body having a distal tip sized and shaped to be inserted through an arteriotomy into an artery;

at least one suture element held within the body; and

at least one suture capture rod within the body, the suture capture rod being operatively associated with the suture element and arranged to pass the suture element through the vessel wall such that opposed portions of the suture element extend from the vessel wall and the suture element defines a knot between opposed portions thereof after the suture element has been passed through the vessel wall; and

;

a guidewire lumen located in the distal tip, wherein the guidewire lumen forms a first opening at a distalmost end of the distal tip and a second opening located between the distalmost end and a vessel wall locator device that positions against a blood vessel when the device is in use.

2. A device as in claim 1, further comprising a valve located within the guidewire lumen, wherein the body permits passage of the guidewire into the lumen through the second opening, and prevents blood flow out of the second opening when a guidewire is positioned within the guidewire lumen.

3. A device as in claim 1, wherein the distal tip is flexible to allow the distal tip to conform to a curvature of the guidewire as the distal tip is advanced into the artery.

4. A device as in claim 3, wherein a flexibility of the distal tip varies over the length of the distal tip with the flexibility of the distal tip increasing moving toward the distalmost and of the distal tip.

5. A device as in claim 1, wherein the distal tip has a length of about 3 cm to limit an insertable portion of the device to about 4-5 cm, wherein the insertable portion is the portion of the device that inserts through the arteriotomy.

6. A device as in claim 1, wherein the distal tip has a length of about 5-7 cm.

7. A device as in claim 1, wherein the suture element extends into and out of the vessel wall locator.

8. A device as in claim 1, wherein the suture element extends into an out of at least one lateral end of the vessel wall locator.

9. A device as in claim 1, wherein the entire guidewire lumen extends only through the distal tip.

10. A device as in claim 1, wherein no portion of the guidewire lumen is positioned proximal of the vessel wall locator.

11. A device as in claim 3, wherein the distal tip has a flexibility that is greater than a flexibility of the guidewire.

12. A device as in claim 3, wherein the guidewire has a stiffness that is greater than a stiffness of the distal tip.