Basket and everting balloon with simplified design and control

• US 10,219,864 B2
• Filed: 04/28/2016
• Issued: 03/05/2019
• Est. Priority Date: 04/16/2013
• Status: Active Grant

• Current Assignee: Calcula Technologies, Inc.
• Original Assignee: Calcula Technologies, Inc.
• Inventors: Bonneau, Raymond Arthur, Gal, David
• Primary Examiner(s): Ton, Martin T
• Application Number:
  US15/141,458
• Publication Number:
  US 20160235478A1
• Time in Patent Office: 1,041 Days
• Field of Search: 606127
• CPC Class Codes: A61B 1/005 Flexible endoscopes
• CPC Class Codes: A61B 1/05 characterised by the image sensor, e.g. camera, being in the distal end portion
• CPC Class Codes: A61B 17/22032 having inflatable gripping elements balloon catheters A61M25/10
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 18/245 for removing obstructions in blood vessels or calculi
• CPC Class Codes: A61B 18/26 for producing a shock wave, e.g. laser lithotripsy
• CPC Class Codes: A61B 2017/22038 with a guide wire
• CPC Class Codes: A61B 2017/22061 for spreading elements apart
• CPC Class Codes: A61B 2017/22068 Centering
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61B 2017/2215 having an open distal end
• CPC Class Codes: A61B 2017/320064 with tissue or sample retaining means
• CPC Class Codes: A61B 2018/00285 Balloons
• CPC Class Codes: A61B 2018/00511 Kidney
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00982 combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2090/3614 using optical fibre
• CPC Class Codes: A61B 90/37 Surgical systems with images on a monitor during operation
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 2029/025 characterised by the guiding element

Abstract

Disclosed systems, methods, and devices may include a system for removing a kidney stone from a ureter. The system may have an inner shaft extending coaxially within an outer shaft, a stone retention member shaft having a stone retention member and extending coaxially within the inner shaft, a wall protection member coupled to the outer shaft and the inner shaft, and a handle coupled with proximal ends of the outer shaft, the inner shaft, and the stone retention member shaft. The handle may include an eversion mechanism coupled to the inner shaft and configured to actuate the inner shaft, thereby everting the wall protection member to form a pocket adapted to receive a kidney stone. The system may also include a retention member mechanism coupled to the stone retention member shaft and configured to actuate the stone retention member shaft.

Claims

1. A method for removing a kidney stone from a ureter, the method comprising:

advancing a distal end of an elongate, flexible kidney stone removal device into the ureter to a location near the kidney stone;

advancing, using a retention member slider on a handle of the kidney stone removal device, a retention member shaft of an expandable stone retention member through an inner shaft of the kidney stone removal device to expose an expandable, stone retention portion of the stone retention member out of a distal end of the inner shaft;

trapping the kidney stone in the stone retention portion of the stone retention member;

retracting an eversion slider on the handle to evert a distal portion of a wall protection member attached to the distal end of the kidney stone removal device to form a pocket in the wall protection member, wherein the eversion slider is coupled to the retention member slider, such that retracting the eversion slider automatically retracts the retention member slider and thus also retracts

the stone retention portion with the trapped kidney stone into the pocket formed in the wall protection member; and

removing the kidney stone removal device from the ureter while the stone retention member and the kidney stone are at least partially within the pocket in the wall protection member.

2. The method of claim 1, wherein the eversion slider is coupled to the retention member slider via a friction fit, and wherein the eversion slider is held in position by a lock, such that the retention member mechanism can be moved without moving the eversion slider.

3. The method of claim 2, wherein, when the eversion slider is unlocked and moved, relative to the handle, it automatically moves the retention member slider.

4. The method of claim 1, wherein the wall protection member comprises an inflatable balloon, and wherein the handle of the kidney stone removal device comprises a port in fluid communication with an inflation lumen configured to deliver inflation fluid to the balloon.

5. The method of claim 4, further comprising inflating the balloon, wherein the balloon partially deflates when the distal portion of the wall protection member everts.

6. The method of claim 4, further comprising inflating the balloon to dilate a portion of the ureter.

7. The method of claim 1, wherein retracting the eversion slider comprises retracting the inner shaft, which is coupled to the wall protection member.

8. The method of claim 1, wherein advancing the distal end of the kidney stone removal device comprises advancing the distal end through a lumen of a ureteroscope.

9. The method of claim 1, wherein everting the distal portion of the wall protection member to form the pocket is caused, in part, by the trapped kidney stone being retracted back into the inner shaft.