METHOD FOR VESSEL ACCESS CLOSURE

• US 20110213411A1
• Filed: 07/21/2010
• Published: 09/01/2011
• Est. Priority Date: 02/26/2010
• Status: Active Grant

• Current Assignee: Promed, Inc.
• Original Assignee: Promed, Inc.
• Inventors: DeCou, Robert Elliott, Ginn, Richard S., Yerby, Scott, Valencia, Hans F., Domingo, Nicanor
• Granted Patent: US 9,445,796 B2
• Time in Patent Office: Days
• US Class Current: 606/213
• 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 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/0061 Implements located only on one side of the opening
• CPC Class Codes: A61B 2017/00659 located only on one side 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 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/00942 hydrophilic
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: A61F 2002/9534 for repositioning of stents

Abstract

Embodiments are described for closing vascular access ports, such as arteriotomies, which involve placement and deployment of an expandable device configured to prevent blood flow across a subject arteriotomy while also keeping disturbance of intravascular flow to a minimum. Suitable prostheses may comprise one or more frames constructed from lengths of flexible materials, such as shape memory alloys or polymers. Such frames may be coupled to sheetlike or tube-like structures configured to spread loads, minimize thrombosis which may be related to intravascular flow, and maintain hemostasis.

Claims

1. A method for closing an opening in a blood vessel, comprising:

a. providing a closure device removably coupled to a delivery member;

b. passing the closure device through the opening;

c. controllably expanding the closure device from a collapsed state to an expanded state, wherein the closure device is configured to restrict fluids from exiting the opening; and

d. decoupling the closure device from the delivery member.

2. The method of claim 1, wherein the closure device is a self expanding structure configured to expand itself from the collapsed state to the expanded state when not restrained in the collapsed state.

3. The method of claim 2, wherein controllably expanding comprises moving a portion of a deployment tensile element relative to the self expanding structure to allow the self expanding structure to expand itself to the expanded state.

4. The method of claim 1, wherein the closure device expanded state forms a substantially cylindrical shape defining a lumen therethrough.

5. The method of claim 1, further comprising controllably moving the collapsed closure device relative to the deployment member to place the closure device into a geometric configuration selected to prevent withdrawal of the closure device back out of the hole.

6. The method of claim 5, wherein controllably moving comprises rotating the collapsed closure device relative to the deployment member to place the closure device into a rotated orientation selected to prevent withdrawal of the closure device back out of the hole.

7. The method of claim 5, wherein controllably moving comprises translating the collapsed closure device relative to the deployment member.

8. The method of claim 7, wherein translating causes the collapsed closure device to controllably rotate to a rotated orientation selected to prevent withdrawal of the closure device back out of the hole.

9. The method of claim 1, further comprising applying a tensile load to at least a portion of the closure device using a tensile element positioned through the opening in the blood vessel.

10. The method of claim 1, wherein passing the closure device through the opening comprises advancing an introducer sheath defining a lumen in which the closure device is temporarily housed.

11. A method for closing an opening in a blood vessel, the blood vessel having an inner surface that defines a lumen having a longitudinal axis, comprising:

a. passing a closure device through the opening; and

b. controllably expanding the closure device from a collapsed state to an expanded state, wherein the closure device is configured to contact at least 90 degrees of an inner surface of the vessel adjacent the opening relative to the longitudinal axis and restrict fluids from exiting the opening.

12. The method of claim 11, wherein the closure device is a self expanding structure configured to expand itself from the collapsed state to the expanded state when not restrained in the collapsed state.

13. The method of claim 12, wherein controllably expanding comprises moving a portion of a deployment tensile element relative to the self expanding structure to allow the self expanding structure to expand itself to the expanded state.

14. The method of claim 11, wherein the closure device expanded state forms a substantially cylindrical shape defining a lumen therethrough.

15. The method of claim 11, further comprising controllably moving the collapsed closure device relative to the deployment member to place the closure device into a geometric configuration selected to prevent withdrawal of the closure device back out of the hole.

16. The method of claim 15, wherein controllably moving comprises rotating the collapsed closure device relative to the deployment member to place the closure device into a rotated orientation selected to prevent withdrawal of the closure device back out of the hole.

17. The method of claim 15, wherein controllably moving comprises translating the collapsed closure device relative to the deployment member.

18. The method of claim 17, wherein translating causes the collapsed closure device to controllably rotate to a rotated orientation selected to prevent withdrawal of the closure device back out of the hole.

19. The method of claim 11, further comprising applying a tensile load to at least a portion of the closure device using a tensile element positioned through the opening in the blood vessel.

20. The method of claim 11, wherein passing the closure device through the opening comprises advancing an introducer sheath defining a lumen in which the closure device is temporarily housed.