Adjustable double balloon catheter with a through lumen for stone management

• US 8,197,463 B2
• Filed: 10/20/2010
• Issued: 06/12/2012
• Est. Priority Date: 06/11/2002
• Status: Expired due to Fees

• Current Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Intoccia, Al
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): Eisenberg, Rebecca E
• Application Number:
  US12/908,665
• Publication Number:
  US 20110092957A1
• Time in Patent Office: 601 Days
• Field of Search: 604/102.02, 604/96.01, 604/95.03, 604 101-10105, 604/509, 604/103.03
• US Class Current: 604/509
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 2017/22054 with two balloons
• CPC Class Codes: A61B 2017/22084 stone- or thrombus-dissolving
• CPC Class Codes: A61M 2025/0058 having an electroactive polymer material, e.g. for steering purposes, for control of flexibility, for locking, for opening or closing
• CPC Class Codes: A61M 2025/1015 having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system
• CPC Class Codes: A61M 2025/1068 having means for varying the length or diameter of the deployed balloon, this variations could be caused by excess pressure

Abstract

A method for removing an object from a body lumen includes dispensing fluid into the body lumen, and causing the dispensed fluid to propel the object along the body lumen. A device for removing an object from a body lumen includes a fluid dispenser for dispensing fluid into the body lumen, and a pump in fluid communication with the dispenser.

Claims

1. A method of moving an object within a body lumen, comprising:

inserting a medical device into the body lumen, the medical device comprising a first expansible member and a second expansible member;

expanding the first expansible member distally of the object;

expanding the second expansible member proximally of the object;

after expanding the first and second expansible members, dispensing fluid between the first and second expansible members; and

releasing the dispensed fluid to displace the object proximally past the second expansible member,

wherein during the method of moving the object within the body lumen a lithotripsy procedure is not performed.

2. The method of claim 1, wherein the first and second expansible members comprise balloons, each balloon being independently expandable.

3. The method of claim 1, wherein the first and second expansible members are expanded to substantially the same extent.

4. The method of claim 1, wherein the second expansible member is expanded to a lower pressure than a pressure of the first expansible member when expanded.

5. The method of claim 4, wherein the fluid is dispensed such that a pressure of the fluid exceeds a pressure of the second expansible member when the second expansible member is expanded.

6. The method of claim 1, wherein releasing the dispensed fluid includes partially deflating the second expansible member.

7. The method of claim 1, wherein the medical device includes an aperture disposed between the first and second expansible members for dispensing fluid into the body lumen.

8. A method of moving an object within a lumen, comprising:

confining the object in a portion of a body lumen by positioning a proximal expansible member proximally of the object and a distal expansible member distally of the object;

dispensing fluid between the proximal and distal expansible members; and

causing the dispensed fluid to propel the object past the proximal expansible member,

wherein during the method of moving the object within the body lumen, a lithotripsy procedure is not performed.

9. The method of claim 8, after confining the object in the portion of the body lumen, expanding the proximal expansible member until the proximal expansible member seals against a wall of the body lumen.

10. The method of claim 9, wherein causing the dispensed fluid to propel the object includes collapsing the proximal expansible member so that the object and a portion of the fluid flows proximally past the proximal expansible member.

11. The method of claim 8, wherein causing the dispensed fluid to propel the object includes dispensing fluid until a predetermined pressure level of fluid is reached.

12. The method of claim 11, wherein the predetermined pressure level of fluid is greater than a pressure of the proximal expansible member when the proximal expansible member is expanded so that the object and a portion of the fluid flows between the proximal expansible member and a wall of the body lumen.

13. The method of claim 8, wherein the body lumen is a ureter, and wherein causing the dispensed fluid to propel the object includes causing the dispensed fluid to propel a kidney stone along the ureter into a bladder.

14. A method of moving an object a body lumen, comprising:

confining the object in a portion of a body lumen by expanding a proximal expansible member at a proximal end of the portion of the body lumen and expanding a distal expansible member at a distal end of the portion of the body lumen;

dispensing fluid between the proximal and distal expansible members;

causing the dispensed fluid to dislodge the object from a wall of the body lumen, and

releasing the object and a portion of the dispensed fluid through the proximal end of the portion of the body lumen,

wherein during the method of moving the object within the body lumen, a lithotripsy procedure is not performed.

15. The method of claim 14, wherein the proximal and distal expansible members are expanded until the proximal and distal expansible members seal against a wall of the body lumen.

16. The method of claim 14, wherein causing the dispensed fluid to dislodge the object includes dispensing fluid at a pressure sufficient to expand the portion of the lumen.

17. The method of claim 14, wherein propelling the object includes partially collapsing the proximal expansible member to cause the object and a portion of the dispensed fluid to flow proximally past the proximal expansible member.

18. The method of claim 14, wherein causing the dispensed fluid to dislodge the object includes varying the pressure of the dispensed fluid within the portion of the body lumen.

19. The method of claim 14, wherein causing the dispensed fluid to dislodge the object includes reducing a distance between the proximal and distal expansible members to cause an increase in a fluid turbulence within the portion of the body lumen.

20. The method of claim 14, wherein causing the dispensed fluid to dislodge the object includes repeatedly dispensing fluid into the portion of the body lumen.