APPARATUS FOR VESSEL ACCESS CLOSURE

• US 20110213412A1
• 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 Elliot, Ginn, Richard S., Yerby, Scott, Valencia, Hans F., Domingo, Nicanor
• Granted Patent: US 10,039,534 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
• 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. An apparatus for closing an opening in a blood vessel, comprising:

a closure device removably coupled to a delivery member, the closure device configured such that upon passage through the opening, the closure device is;

a. controllably expandable from a collapsed state to an expanded state, wherein the closure device restricts fluids from exiting the opening; and

b. controllably decouplable from the delivery member.

2. The apparatus 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 apparatus of claim 2, wherein the closure device expanded state forms a generally cylindrical shape defining a lumen therethrough.

4. The apparatus of claim 1, wherein the closure device comprises a frame structure and a cover member coupled to the frame structure in at least one location, wherein the frame structure is configured to retain a position within the blood vessel in its expanded state, and wherein the cover member has a thickness and is configured to at least temporarily resist the flow of blood across the thickness.

5. The apparatus of claim 1, wherein the deployment member has a proximal portion and a controllably movable distal portion, the distal portion being coupled to the closure device, wherein the distal portion may be moved from a first configuration wherein the distal portion is substantially aligned with the proximal portion, to a second configuration, wherein the distal portion is rotated relative to the proximal portion in a manner selected to prevent the closure device from exiting the opening in the blood vessel.

6. The apparatus of claim 5, wherein the controllably movable distal portion is biased to rotate to the second configuration when not constrained to remain in the first configuration.

7. The apparatus of claim 5, further comprising a rotation actuating member that may be utilized to apply a tensile load to the movable distal portion to cause the distal portion to rotate.

8. An apparatus for closing an opening in a blood vessel, the blood vessel having an inner surface that defines a lumen having a longitudinal axis, comprising:

an expandable closure device controllably expandable from a collapsed state to an expanded state, and configured such that upon passage through the opening and expansion to the expanded state, the closure device contacts at least 90 degrees of an inner surface of the vessel adjacent the opening relative to the longitudinal axis, and restricts fluids from exiting the opening.

9. The apparatus of claim 8, 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.

10. The apparatus of claim 9, wherein the closure device expanded state forms a generally cylindrical shape defining a lumen therethrough.

11. The apparatus of claim 8, wherein the closure device comprises a frame structure and a cover member coupled to the frame structure in at least one location, wherein the frame structure is configured to retain a position within the blood vessel in its expanded state, and wherein the cover member has a thickness and is configured to at least temporarily resist the flow of blood across the thickness.

12. The apparatus of claim 8, wherein the deployment member has a proximal portion and a controllably movable distal portion, the distal portion being coupled to the closure device, wherein the distal portion may be moved from a first configuration wherein the distal portion is substantially aligned with the proximal portion, to a second configuration, wherein the distal portion is rotated relative to the proximal portion in a manner selected to prevent the closure device from exiting the opening in the blood vessel.

13. The apparatus of claim 12, wherein the controllably movable distal portion is biased to rotate to the second configuration when not constrained to remain in the first configuration.

14. The apparatus of claim 12, further comprising a rotation actuating member that may be utilized to apply a tensile load to the movable distal portion to cause the distal portion to rotate.

15. An apparatus for closing an opening in a blood vessel, comprising:

a closure device that is controllably expandable from a collapsed state to an expanded state;

wherein in the collapsed state, the closure device is insertable through the opening in the blood vessel, and wherein in the expanded state, the closure device is coupled to an inner surface of the blood vessel and configured to restrict fluids from exiting the opening.

16. The apparatus of claim 15, 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.

17. The apparatus of claim 16, wherein the closure device expanded state forms a generally cylindrical shape defining a lumen therethrough.

18. The apparatus of claim 15, wherein the closure device comprises a frame structure and a cover member coupled to the frame structure in at least one location, wherein the frame structure is configured to retain a position within the blood vessel in its expanded state, and wherein the cover member has a thickness and is configured to at least temporarily resist the flow of blood across the thickness.

19. The apparatus of claim 15, wherein the deployment member has a proximal portion and a controllably movable distal portion, the distal portion being coupled to the closure device, wherein the distal portion may be moved from a first configuration wherein the distal portion is substantially aligned with the proximal portion, to a second configuration, wherein the distal portion is rotated relative to the proximal portion in a manner selected to prevent the closure device from exiting the opening in the blood vessel.

20. The apparatus of claim 19, wherein the controllably movable distal portion is biased to rotate to the second configuration when not constrained to remain in the first configuration.

21. The apparatus of claim 19, further comprising a rotation actuating member that may be utilized to apply a tensile load to the movable distal portion to cause the distal portion to rotate.