Expandable access systems and methods

• US 10,709,474 B2
• Filed: 10/19/2016
• Issued: 07/14/2020
• Est. Priority Date: 11/21/2012
• Status: Active Grant

• Current Assignee: P TECH, LLC
• Original Assignee: P TECH, LLC
• Inventors: Bonutti, Peter M., Cremens, Matthew J.
• Primary Examiner(s): Stigell, Theodore J
• Application Number:
  US15/297,227
• Publication Number:
  US 20170035460A1
• Time in Patent Office: 1,364 Days
• CPC Class Codes: A61B 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61M 2025/0024 Expandable catheters or sheaths
• CPC Class Codes: A61M 25/0662 Guide tubes

Abstract

Embodiments may include an expandable access system having contracted and expanded configurations. The system and methods may include an expandable access device having a helix or wrapped shape. Embodiments may include a cannula, stent, needle, trocar, introducer, fastener, and/or any other devices disclosed herein. Embodiments may also include an expandable trocar positionable in at least a portion of the access device. A sleeve or band may be disposed over at least a portion of the access device and configured to resist radial expansion of the access device. Expansion of the trocar and/or receipt of an object may radially expand the access device between a contracted configuration and an expanded configuration.

Claims

1. An expandable access system comprising:

an expandable access device defining an access passage, the expandable access device configured to have a contracted configuration and an expanded configuration, and the expandable access device configured to be passed through at least one of an existing orifice and an incision; and

one of a sleeve and a retaining band, at least a portion of the one of a sleeve and a retaining band bonded to at least a portion of the expandable access device and configured to resist radial expansion of the expandable access device, wherein the one of a sleeve and a retaining band is at least one of deformable, flexible, bendable, and expandable,

wherein the expandable access device is configured to radially expand from the contracted configuration toward the expanded configuration in at least one of the existing orifice and incision when the at least a portion of the one of the sleeve and the retaining band is released.

2. The system of claim 1, wherein the expandable access device comprises filaments.

3. The system of claim 1, wherein the one of the sleeve and the retaining band comprises wires.

4. The system of claim 1, further comprising an expandable trocar having a passage and being positionable in at least a section of the expandable access device.

5. The system of claim 1, wherein the expandable access device is configured to be inserted and expanded to provide a passage for vascular access.

6. The system of claim 1, wherein the expandable access device is configured to be at least one of manipulated and controlled with a robotic mechanism.

7. The system of claim 6, wherein the access passage is configured to receive at least one therapeutic substance.

8. The system of claim 1, wherein the expandable access device has at least one of a substantially spiral, helix, rolled, and wrapped shape.

9. The system of claim 1, wherein at least a section of the expandable access device is bendable to a curved shape.

10. The system of claim 1, wherein the expandable access device is configured to deploy an implant.

11. The system of claim 1, wherein the expandable access device is a stent.

12. An expandable access system comprising:

an expandable access device having an access passage, the expandable access device configured to have a contracted configuration and an expanded configuration, and the expandable access device configured to be passed thru at least one of an existing orifice and an incision; and

one of a sleeve and a retaining band, at least a portion of the one of a sleeve and a retaining band bonded to at least a portion of the expandable access device and configured to resist expansion of the expandable access device, wherein the one of a sleeve and a retaining band is at least one of deformable, flexible, bendable, and expandable,

wherein the expandable access device is configured to expand in at least one of the existing orifice and incision when at least a portion of the one of the sleeve and the retaining band is released.

13. The system of claim 12, wherein the expandable access device is configured to expand at least one of radially, linearly, and telescopically.

14. The system of claim 12, wherein at least one of the expandable access device, the sleeve, and the retaining band comprises at least one of filaments and wires.

15. The system of claim 12, further comprising an expandable trocar having a passage and being positionable in the expandable access device.

16. The system of claim 12, wherein the access passage defined by the expandable access device is configured to be inserted and expanded to provide an aperture for vascular access.

17. The system of claim 12, wherein the expandable access device is configured to be at least one of manipulated and controlled with a robotic mechanism.

18. The system of claim 12, wherein the expandable access device has at least one of a substantially spiral, helix, rolled, and wrapped shape.

19. The system of claim 12, wherein at least a section of the expandable access device is bendable to a curved shape.

20. The system of claim 12, wherein the expandable access device is a stent.