Resilient tube over dilator balloon

Patent metadata

Field	Value
Publication number	US-10179227-B2
Application number	US-201313795999-A
Country	US
Kind code	B2
Filing date	Mar 12, 2013
Priority date	Mar 12, 2013
Publication date	Jan 15, 2019
Grant date	Jan 15, 2019

Abstract

A dilation device comprises an elongate shaft, an inflatable balloon, and a resilient tube. The inflatable balloon is disposed along the shaft. The resilient tube is also disposed along the shaft and is positioned to encompass at least part of the inflatable balloon. The resilient tube is configured to impose an inwardly directed resilient bias on at least a portion of the exterior of the inflatable balloon. At least part of the resilient tube is secured to one or both of the elongate shaft or the inflatable balloon.

First claim

We claim:

1. A dilation device comprising:
(a) an elongate shaft;
(b) an inflatable balloon disposed along the shaft, wherein the inflatable balloon is configured to transition between a non-inflated configuration and an inflated configuration; and
(c) a resilient tube disposed along the shaft, wherein the resilient tube includes opposing proximal and distal ends, wherein the resilient tube partially encompasses the inflatable balloon such that the distal end of the resilient tube is positioned proximal to a distal end of the inflatable balloon, wherein the proximal end of the resilient tube is bonded to the shaft and the distal end of the resilient tube is longitudinally slidable relative to the distal end of the inflatable balloon while the proximal end remains bonded to the shaft, wherein the resilient tube is configured to expand and contract with the inflatable balloon as the inflatable balloon transitions between the non-inflated configuration and the inflated configuration, and wherein the resilient tube is configured to impose a resilient bias on at least a portion of an exterior of the inflatable balloon to thereby resiliently urge the inflatable balloon toward the non-inflated configuration, wherein at least part of the resilient tube is secured to one or both of the elongate shaft or the inflatable balloon.

2. The dilation device of claim 1 , wherein the resilient tube is attached to the shaft near the proximal end of the inflatable balloon.

3. The dilation device of claim 1 , wherein an interior of the resilient tube is at least partially adhered to the exterior of the inflatable balloon.

4. The dilation device of claim 1 , wherein the shaft, the balloon, and the resilient tube together are configured to fit in an anatomical passageway in a patient.

5. The dilation device of claim 1 , wherein the resilient tube comprises silicone.

6. The dilation device of claim 1 , wherein the shaft defines a lumen, wherein the inflatable balloon is in fluid communication with the lumen.

7. The dilation device of claim 1 , wherein the shaft further comprises a distal end and a proximal end, and wherein the inflatable balloon is disposed along the shaft at the distal end of the shaft.

8. The dilation device of claim 1 , wherein the shaft contains at least one bend.

9. The dilation device of claim 1 , wherein the shaft is flexible along at least a portion of a length of the shaft.

10. The dilation device of claim 9 , wherein the inflatable balloon is disposed along the flexible portion of the shaft.

11. The dilation device of claim 1 , wherein the proximal end of the resilient tube is permanently bonded to both the shaft and a proximal end of the inflatable balloon.

12. A dilation device comprising:
(a) an elongate shaft, wherein the shaft defines a lumen;
(b) an inflatable balloon disposed along the shaft, wherein the inflatable balloon is in fluid communication with the lumen; and
(c) a resilient tube disposed along the shaft, wherein at least a proximal end of the resilient tube is longitudinally fixed directly to the shaft at a location proximal to the inflatable balloon and at least a distal end of the resilient tube is longitudinally slidable along the shaft such that the distal end is not longitudinally fixed to the shaft or to the inflatable balloon, wherein the resilient tube is positioned to only partially encompass the inflatable balloon.

13. The dilation device of claim 12 , wherein the inflatable balloon is inflatable to a size configured to dilate an airway in a patient.

14. The dilation device of claim 12 , wherein the resilient tube is operable to drive fluid from the inflatable balloon.

15. The dilation device of claim 12 , wherein the resilient tube has a length of approximately 3 inches.

16. The dilation device of claim 12 , wherein the resilient tube has an inner diameter between approximately 0.125 inches and approximately 0.135 inches.

17. The dilation device of claim 12 , wherein the resilient tube has a wall thickness between approximately 0.025 inches and approximately 0.030 inches.

18. The dilation device of claim 12 , wherein the dilation device further comprises a stylet, wherein the stylet is configured to be received through the lumen, wherein the stylet comprises a core member with a proximal end and a distal end, and wherein a coil is disposed around at least part of the distal section of core member.

19. A dilation device comprising:
(a) a flexible elongate shaft, wherein the shaft defines a lumen, wherein the flexible elongate shaft includes at least one bend;
(b) an inflatable balloon disposed along and bonded to the shaft, wherein the inflatable balloon is in fluid communication with the lumen; and
(c) a resilient tube including opposing proximal and distal ends, wherein the proximal end of the resilient tube is bonded to both the shaft and a proximal end of the inflatable balloon, wherein the distal end is configured to longitudinally translate in a proximal direction relative to a distal end of the inflatable balloon while the proximal end remains bonded to the shaft, wherein the resilient tube encompasses at least a portion of the inflatable balloon, wherein the resilient tube is configured to impose an inwardly directed resilient bias on an exterior of the inflatable balloon.

20. The dilation device of claim 19 , wherein the dilation device further comprises a stylet, wherein the stylet is configured to be received through the lumen, wherein the stylet comprises a core member with a proximal end and a distal end, and wherein a coil is disposed around at least part of the distal section of core member.

Assignees

• Acclarent Inc

Inventors

• Lam Sivette
• Muni Ketan P

Classifications

• A61M2025/1081

  having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths · CPC title

• A61M25/104 Primary

  used for angioplasty · CPC title

• A61M29/02 Primary

  Dilators made of swellable material {(balloon catheters for angioplasty A61M25/104)} · CPC title

• A61M2210/1035

  Bronchi · CPC title

• A61M2025/1084

  having features for increasing the shape stability, the reproducibility or for limiting expansion, e.g. containments, wrapped around fibres, yarns or strands · CPC title