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1. (WO2008141329) OPEN LUMEN STENT
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What is claimed is:
1. A ureteral stent, comprising:
an elongate body having a proximal end and a distal end and defining a lumen and an opening in communication with the lumen,
the lumen having a diameter, the opening having a width greater than 1/2 the size of the diameter of the lumen and less than the diameter of the lumen,
the opening having a length at least twice the width of the opening.

2. The ureteral stent of claim 1, wherein the elongate body defines at least one channel on an outer surface of the elongate body.

3. The ureteral stent of claim 1, further comprising:
a retention member disposed at at least one of the proximal end or the distal end of the elongate body, the retention member configured to help anchor the elongate body within a ureter.

4. The ureteral stent of claim 1, further comprising:
a first retention member at the proximal end of the elongate body and a second retention member at the distal end of the elongate body, the first retention member configured to be disposed within a bladder, the second retention member configured to be disposed within a kidney.

5. The ureteral stent of claim 1, wherein the elongate body has a cross-sectional profile including a first end portion, a second end portion and a middle portion, the elongate body defines a first channel on an outer surface of the elongate body between the middle portion and the first end portion and a second channel on the outer surface of the elongate body between the middle portion and the second end portion.

6. The ureteral stent of claim 1, wherein the opening extends from the proximal end to the distal end of the elongate body.

7. The ureteral stent of claim 1, wherein the opening is configured to laterally receive a guidewire therethrough,
the elongate body being configured to releasably couple the guidewire within the lumen of the elongate body such that the elongate body can be slidably moved along the guidewire.

8. A ureteral stent, comprising:
an elongate body having a proximal end and a distal end and defining a lumen, and an opening in communication with the lumen,
the opening extending from the proximal end of the elongate body to the distal end of the elongate body,
the opening configured to laterally receive a guidewire therethrough,
the elongate body being configured to releasably couple the guidewire within the lumen of the elongate body such that the elongate body can be slidably moved along the guidewire.

9. The ureteral stent of claim 8, wherein the elongate body defines a plurality of channels on an outer surface of the elongate body.

10. The ureteral stent of claim 8, further comprising:
a retention member disposed at at least one of the proximal end or the distal end of the elongate body configured to help retain the elongate body within a ureter.

11. The ureteral stent of claim 8, wherein the elongate body has a cross-sectional profile having a first end portion and a second end portion each bounding the opening, the first end portion and the second end portion having a lip portion configured to releasably couple the guidewire to the elongate body.

12. The ureteral stent of claim 8, wherein the lumen has a diameter,
the opening has a width greater than 1/2 the size of the diameter of the lumen and less than the diameter of the lumen.

13. The ureteral stent of claim 8, wherein the elongate body has a cross-sectional profile having a first end portion and a second end portion each bounding the opening, and a middle portion, the first end portion and the second end portion each having a wall thickness greater than a wall thickness of the middle portion of the elongate body.

14. A ureteral stent, comprising:
an elongate body having a proximal end and a distal end and defining a lumen,
the elongate body having a substantially u-shaped cross-sectional profile having a first end portion, a second end portion, and a middle portion,
the elongate body having an interior perimeter bounding the lumen, the first end portion and the second end portion each bounding an opening in communication with the lumen,
the first end portion and the second end portion each having a wall thickness greater than a wall thickness of the middle portion of the elongate body.

15. The ureteral stent of claim 14, wherein the elongate body defines at least one channel on an outer surface of the elongate body.

16. The ureteral stent of claim 14, further comprising:
a retention member disposed on at least one of the proximal end or the distal end of the elongate body configured to help retain the elongate body within a ureter.

17. The ureteral stent of claim 14, wherein the opening extends from the proximal end to the distal end of the elongate body.

18. The ureteral stent of claim 14, wherein the opening is configured to laterally receive a guidewire therethrough.
the elongate body being configured to releasably couple the guidewire within the lumen of the elongate body such that the elongate body can be slidably moved along the guidewire.

19. The ureteral stent of claim 14, wherein the opening has a width greater than 1/2 the size of the diameter of the lumen and less than the diameter of the lumen.

20. A ureteral stent, comprising:
an elongate body having a proximal end and a distal end and defining a lumen, and an opening in communication with the lumen, the lumen having a diameter,
at least a portion of the elongate body having an outer width, the diameter of the lumen being at least 92% of the outer width of the at least a portion of the elongate body.

21. The ureteral stent of claim 20, wherein the elongate body defines a plurality of channels on an outer surface of the elongate body.

22. The ureteral stent of claim 20, further comprising:
a retention member disposed on at least one of the proximal end or the distal end of the elongate body configured to help retain the elongate body within a ureter.

23. The ureteral stent of claim 20, wherein the opening extends from the proximal end to the distal end of the elongate body.

24. The ureteral stent of claim 20, wherein the opening is configured to laterally receive a guidewire therethrough,
the elongate body being configured to releasably couple the guidewire within the lumen of the elongate body such that the elongate body can be slidably moved along the guidewire.

25. The ureteral stent of claim 20, wherein the elongate body has a cross-sectional profile having a first end portion and a second end portion each bounding the opening, and a middle portion, the first end portion and the second end portion each having a wall thickness greater than a wall thickness of the middle portion of the elongate body.

26. A kit, comprising:
a ureteral stent defining a lumen and an opening in communication with the lumen, the opening extending from a proximal end to a distal end of the ureteral stent and being configured to laterally receive a guidewire therethrough; and
a pusher device, the pusher device defining a lumen and an opening in communication with the lumen, the opening extending from a proximal end to a distal end of the pusher device and being configured to laterally receive a guidewire therethrough.

27. The kit of claim 26, wherein the distal end of the pusher is configured to engage the proximal end of the ureteral stent and used to insert the ureteral stent into a ureter transurethrally.

28. A method, comprising:
inserting a guidewire transurethrally into a ureter of a patient;
coupling a ureteral stent to a portion of the guidewire disposed outside of the patient by disposing the guidewire laterally through an opening defined by the ureteral stent and into a lumen defined by the ureteral stent; and
slidably moving the ureteral stent distally along the guidewire to position at least a portion of the ureteral stent within the ureter of the patient.