Ureteral stent
First Claim
1. A ureteral stent, comprising:
- (a) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder;
(b) a first end portion extending from one end of the elongated portion, defining an interior space in communication with the lumen, and defining at least one opening in communication with the interior space, the first end portion for placement substantially within the kidney and adapted to assume a retaining configuration when placed substantially within the kidney; and
(c) a second end portion extending from another end of the elongated portion and flaring outward when placed substantially within the bladder to maintain position substantially within the bladder, the second end portion being collapsible to prevent fluid from passing into the lumen.
2 Assignments
0 Petitions
Accused Products
Abstract
A stent is designed to be placed within a patient'"'"'s ureter to facilitate drainage from the patient'"'"'s kidneys to the bladder. An elongated portion of the stent includes a length sufficient to extend substantially within the ureter from the kidney to the bladder, and defines a lumen extending therethrough. A first end portion extends from one end of the elongated portion and is adapted to assume a retaining configuration when placed substantially within the kidney. A second end portion extends from another end of the elongated portion and flares outward when placed substantially within the bladder to maintain position. The second end portion allows fluids to flow through the lumen and into the bladder and is collapsible to prevent fluid from passing from the bladder to the kidney.
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Citations
26 Claims
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1. A ureteral stent, comprising:
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(a) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder;
(b) a first end portion extending from one end of the elongated portion, defining an interior space in communication with the lumen, and defining at least one opening in communication with the interior space, the first end portion for placement substantially within the kidney and adapted to assume a retaining configuration when placed substantially within the kidney; and
(c) a second end portion extending from another end of the elongated portion and flaring outward when placed substantially within the bladder to maintain position substantially within the bladder, the second end portion being collapsible to prevent fluid from passing into the lumen.
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2-17. -17. (canceled)
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18. A ureteral stent for facilitating drainage from the kidney to the bladder, the ureteral stent comprising:
- (a) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder;
(b) a first end portion extending from one end of the elongated portion, defining an interior space in communication with the lumen, and defining at least one opening in communication with the interior space, the first end portion for placement substantially within the kidney and adapted to assume a retaining configuration when placed substantially within the kidney; and
(c) a second end portion extending from another end of the elongated portion and being wrapped to form a conical structure, the second end portion adapted for placement, and for maintaining position, substantially within the bladder. - View Dependent Claims (19, 20, 21, 22, 23, 24)
- (a) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder;
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25. A method of placing a ureteral stent into a urinary system, comprising:
- (a) providing a ureteral stent comprising (i) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder, (ii) a first end portion extending from one end of the elongated portion, defining an interior space in communication with the lumen, and defining at least one opening in communication with the interior space, the first end portion for placement substantially within the kidney and adapted to assume a retaining configuration when placed substantially within the kidney, and (iii) a second end portion extending from another end of the elongated portion and being wrapped to form a conical structure, the second end portion adapted for placement, and for maintaining position, substantially within the bladder;
(b) inserting the ureteral stent into the urinary system; and
(c) positioning the ureteral stent within the ureter such that the first end portion of the ureteral stent is substantially within the kidney and the second end portion is substantially within the bladder. - View Dependent Claims (26)
- (a) providing a ureteral stent comprising (i) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder, (ii) a first end portion extending from one end of the elongated portion, defining an interior space in communication with the lumen, and defining at least one opening in communication with the interior space, the first end portion for placement substantially within the kidney and adapted to assume a retaining configuration when placed substantially within the kidney, and (iii) a second end portion extending from another end of the elongated portion and being wrapped to form a conical structure, the second end portion adapted for placement, and for maintaining position, substantially within the bladder;
Specification