Ureteral stent for placement in a kidney and bladder
AssigneeUniversity Hospitals Health System, Inc.
InventorsLee E. Ponsky, Dean Secrest
Life of this patent
Estimating the term…
Abstract
Provided is a ureteral stent (=50) including a bladder portion (=52) positioned in a bladder of a patient, a kidney portion (=54) positioned in a kidney and ureteral passageway of the patient, and one or more tethers (=56) coupling the bladder portion to the kidney portion. The ureteral stent allows urine to pass around a blockage, and allows a ureter orifice connecting the ureteral passageway to the bladder to move between a compressed state and an uncompressed state to prevent or minimize urinary reflux, flank pain, blood in the urine, etc., while allowing the bladder portion to move freely in the bladder to prevent the bladder portion from irritating the trigone muscle.
Claims21
1-25. (canceled)
A ureteral stent for placement in a bladder, a kidney and a ureteral passageway connecting the bladder and kidney, the ureteral stent including:
- a bladder portion configured to be positioned in the bladder, the bladder portion being resilient and biased in an unrestrained position to prevent the bladder portion from migrating into the ureteral passageway when positioned in the bladder;
- a kidney portion having first and second ends and being configured to be positioned in the kidney and the ureteral passageway, the kidney portion having a ureter portion configured to be positioned in the kidney and the ureteral passageway to place the ureteral passageway in an open state and a resilient fixing portion biased in an unrestrained position to secure the resilient fixing portion in the kidney when positioned in the kidney, wherein the ureter portion includes an opening in a wall of the ureter portion near the second end;
- and
- a tether having a portion extending through the opening in the ureter portion, wherein the tether couples the bladder portion and the ureter portion to allow the bladder portion to float in the bladder and to allow a ureter orifice connecting the ureteral passageway to the bladder to move between a compressed state and an uncompressed state.
A ureteral stent for placement in a bladder, a kidney and a ureteral passageway connecting the bladder and kidney for allowing urine and/or stones to flow from the kidney to the bladder and not from the bladder to the kidney, the ureteral stent including:
- a resilient bladder portion configured to be positioned in the bladder and including one or more openings in a wall thereof providing a fluid passage;
- a tubular kidney portion defining a tubular resilient fixing portion configured to be positioned in the kidney and a tubular ureter portion extending from the resilient fixing portion and configured to be positioned in the kidney and the ureteral passageway to keep the passageway in an open state while in position, the tubular kidney portion including one or more openings in a wall thereof providing a fluid passage;
- and
- a tether connecting the bladder portion and the ureter portion.
A ureteral stent for placement in a bladder, a kidney and a ureteral passageway connecting the bladder and kidney, the ureteral stent including:
- a bladder portion configured to be positioned in the bladder, the bladder portion being resilient and biased in an unrestrained position to prevent the bladder portion from migrating into the ureteral passageway when positioned in the bladder;
- a kidney portion configured to be positioned in the kidney and the ureteral passageway, the kidney portion having a ureter portion configured to be positioned in the kidney and the ureteral passageway to place the ureteral passageway in an open state and a resilient fixing portion biased in an unrestrained position to secure the resilient fixing portion in the kidney when positioned in the kidney;
- and
- a tether coupled to the bladder portion and the ureter portion to allow the bladder portion to float in the bladder and to allow a ureter orifice connecting the ureteral passageway to the bladder to move between a compressed state and an uncompressed state.
Dependencies are inferred from the claim text.