Adjustable double balloon catheter with a through lumen for stone management

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.