| abstract |
The present invention provides a method of promoting renal urination, the method comprising: (a) inserting a drainage lumen, the drainage lumen having a distal portion and a proximal portion, the distal portion being located in a patient's kidney, renal pelvis and/or adjacent to the renal pelvis In the ureter, the distal portion includes a positioning portion, the positioning portion includes a funnel support having at least one side wall, the funnel support has a first diameter and a second diameter, and the first diameter is smaller than the second diameter, and the second diameter is larger than the first diameter. an end that is closer in diameter to the distal portion of the drainage lumen, wherein the proximal portion of the drainage lumen has no or substantially no openings; and (b) applies negative pressure to the proximal portion of the drainage lumen for a period of time to promote renal urination. |