Normalization and stabilization of balloon surfaces for deflation

• US 8,894,568 B2
• Filed: 09/24/2010
• Issued: 11/25/2014
• Est. Priority Date: 09/24/2009
• Status: Expired due to Fees

• Current Assignee: Apollo Endosurgery, Inc. (Boston Scientific Corporation)
• Original Assignee: Reshape Medical, Inc. (ReShape LifeSciences, Inc.)
• Inventors: Kwok, Jason, Pecor, Robert, Ashby, Mark, Chida, Selene, Bouasaysy, Outhit
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): STOHR, LEAH C
• Application Number:
  US13/389,221
• Publication Number:
  US 20130066267A1
• Time in Patent Office: 1,523 Days
• Field of Search: 604/99.01, 600/101, 600/128, 600/129, 600/130, 600139-152, 606/185, 606/192
• US Class Current: 600/129
• CPC Class Codes: A61B 1/0008 characterised by distal tip features
• CPC Class Codes: A61B 1/00094 Suction openings
• CPC Class Codes: A61B 1/00137 End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 17/1204 temporary occlusion
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 2017/22035 for retrieving or repositioning foreign objects
• CPC Class Codes: A61F 5/0089 Instruments for placement or removal
• CPC Class Codes: A61M 2025/0095 being one or more needles protruding from the distal tip and which are not used for injection nor for electro-stimulation, e.g. for fixation purposes
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 25/1018 Balloon inflating or inflation-control devices
• CPC Class Codes: A61M 25/10184 Means for controlling or monitoring inflation or deflation

Abstract

A deflation device for use in deflating an inflatable or implantable balloon device, comprising, in combination: an endoscope tube, having a distal end, a proximal end, and a lumen; a cap disposed at the distal end of the endoscope tube and having walls defining a balloon interface chamber; a coring device disposed within the lumen and configured to travel within the lumen such that a distal end of the coring device is extendable beyond the distal end of the cap; wherein the cap is configured to provide a normal surface of a balloon relative to the orientation of the coring device as the coring device is disposed near the distal end of the cap.

Claims

1. A deflation device, comprising, in combination:

an endoscope tube, having a distal end, a proximal end, and a lumen;

a cap disposed at the distal end of the endoscope tube and having walls defining a balloon interface chamber;

a coring device disposed within the lumen and configured to travel within the lumen such that a distal end of the coring device is extendable beyond the distal end of the cap;

wherein the cap further comprises a protrusion extending radially inward from the walls of the cap, the walls defining a coring channel; and

wherein the protrusion is configured to guide the coring device to an orientation orthogonal to a surface of a balloon at a site of penetration.

2. The deflation device of claim 1, wherein the cap further comprises a flexible distal portion and a rigid proximal portion.

3. The deflation device of claim 1, wherein the cap is configured to cause a portion of a surface of a balloon to be orthogonal to a longitudinal axis of the coring device as the coring device is disposed near the distal end of the cap.

4. The deflation device of claim 1, wherein the protrusion is an annular ring.

5. The deflation device of claim 1, wherein the protrusion is tapered and the coring channel is a frustoconical space having a proximal aperture smaller than a distal aperture.

6. The deflation device of claim 1, wherein the protrusion defines a guiding channel for the coring device, wherein the guiding channel is of a diameter substantially equal to the diameter of the coring device.

7. The deflation device of claim 1, further comprising a vacuum device in fluid communication with the balloon interface chamber.

8. The deflation device of claim 1, wherein the vacuum device is in fluid communication with the balloon interface chamber via the lumen.

9. A method for deflating an inflated balloon device, comprising, in combination:

advancing a deflation device to a balloon until a cap at a distal end of the deflation device contacts a surface of the balloon, the cap and the surface of the balloon defining a balloon interface chamber;

applying a vacuum to the balloon interface chamber, whereby a portion of the surface of the balloon enclosing the balloon interface chamber is drawn into a convex shape;

advancing a coring device from a lumen of the deflation device through a coring channel defined by a protrusion extending radially inward from walls of the cap, whereby a tip of the coring channel is deflected by the protrusion to be made orthogonal to the surface of the balloon at a site of penetration;

penetrating the balloon with the coring device at a site of penetration; and

aspirating fluid from within the balloon through the site of penetration.

10. The method of claim 9, wherein the protrusion is an annular ring.

11. The method of claim 9, wherein the protrusion is tapered and the coring channel is a frustoconical space having a proximal aperture smaller than a distal aperture.

12. The method of claim 9, wherein the protrusion defines a guiding channel for the coring device, wherein the guiding channel is of a diameter substantially equal to the diameter of the coring device.

13. The method of claim 9, wherein advancing the coring device within the lumen to the balloon further comprises advancing the coring device against a protrusion extending radially inward from the walls of the cap, whereby the coring device is aligned to be at least substantially orthogonal with a portion of the balloon surface.

14. A deflation device, comprising, in combination:

an endoscope tube, having a distal end, a proximal end, and a lumen;

a cap disposed at the distal end of the endoscope tube and having walls defining a balloon interface chamber at a distal end of the cap, the balloon interface chamber being in communication with the lumen;

a coring device disposed within the lumen and configured to travel within the lumen such that a distal end of the coring device is extendable beyond the distal end of the cap;

a vacuum chamber at the distal end of the cap; and

a vacuum line fluidly connected to the vacuum chamber, wherein the vacuum chamber is configured to interface with a surface of a balloon and secure the cap thereto when vacuum pressure is applied.

15. The deflation device of claim 14, wherein the vacuum chamber is an annular ring concentric with the balloon interface chamber.

16. The deflation device of claim 14, wherein the vacuum chamber is separated from the balloon interface chamber by a septum.

17. A method for deflating an inflated balloon device, comprising, in combination:

advancing a deflation device to a balloon until a cap of the deflation device contacts a surface of the balloon, whereby a balloon interface chamber and a vacuum chamber of the cap are enclosed partly by the surface of the balloon;

providing vacuum to the vacuum chamber, whereby the cap is secured relative to balloon and a portion of the surface enclosing the balloon interface chamber is substantially flat and orthogonal to a longitudinal axis of a coring device within the deflation device;

advancing the coring device, whereby the balloon is penetrated at a site of penetration; and

aspirating fluid from within the balloon through the site of penetration.

18. The method of claim 17, wherein providing vacuum to the vacuum chamber is effectuated through a vacuum line in fluid communication with the vacuum chamber.

19. The method of claim 17, wherein the vacuum chamber surrounds the balloon interface chamber.

20. The method of claim 17, wherein providing vacuum to the vacuum chamber causes the portion of the surface enclosing the balloon interface chamber to be stretched flat.

21. The method of claim 17, wherein providing vacuum to the vacuum chamber causes the portion of the surface enclosing the balloon interface chamber to be stretched flat.