Stent kidney curl improvements
First Claim
1. A stent comprising:
- a body portion comprising an elongated tubular member, the body portion having a body portion proximate end and a body portion distal end; and
a kidney curl portion comprising an elongated filament, the kidney curl portion having a coupling end and a terminating end, the coupling end coupled to the body portion distal end, the tubular member having an axial lumen therein adapted to provide fluid communication from the body portion distal end to the body portion proximal end, the kidney curl portion having a three-dimensional configuration that substantially conforms to the three-dimensional randomly convoluting calyx space of a kidney.
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Accused Products
Abstract
The present invention provides embodiments of medical devices that provide for fluid drainage while maintaining patient comfort. An embodiment of the present invention provides a stent comprising a body portion and a kidney curl portion, the body portion comprising a tubular member having an axial lumen therein adapted to provide fluid communication from one body location to another. The kidney curl portion comprises an elongated filament that has a three-dimensional configuration that substantially conforms to the three-dimensional randomly convoluting calyx space of a kidney. In another embodiment, the kidney curl portion comprises a plurality of petals adapted to flare outwardly from the body portion distal end when in a free state in the space of a kidney so as to prevent the migration of the kidney curl portion into the ureter.
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Citations
20 Claims
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1. A stent comprising:
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a body portion comprising an elongated tubular member, the body portion having a body portion proximate end and a body portion distal end; and
a kidney curl portion comprising an elongated filament, the kidney curl portion having a coupling end and a terminating end, the coupling end coupled to the body portion distal end, the tubular member having an axial lumen therein adapted to provide fluid communication from the body portion distal end to the body portion proximal end, the kidney curl portion having a three-dimensional configuration that substantially conforms to the three-dimensional randomly convoluting calyx space of a kidney. - View Dependent Claims (2, 3, 4, 5)
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6. A stent comprising:
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a body portion comprising an elongated tubular member, the body portion having a body portion proximate end and a body portion distal end, the tubular member having an axial lumen therein adapted to provide fluid communication from the body portion distal end to the body portion proximal end; and
a kidney curl portion coupled to the body portion distal end, the kidney curl portion comprising a plurality of petals adapted to flare outwardly from the body portion distal end when in a free state. - View Dependent Claims (7, 8, 9)
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10. A ureteral stent for maintaining drainage between a kidney and a bladder comprising:
a body portion comprising an elongated tubular member, the body portion having a body portion proximate end and a body portion distal end, the tubular member having an axial lumen therein adapted to provide fluid communication from the body portion proximate end to the body portion distal end, the body portion proximate end adapted for placement in the bladder, the body portion adapted for placement in the ureter, and the kidney portion adapted for placement in the kidney. - View Dependent Claims (11, 12, 13, 14)
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15. A ureteral stent for maintaining drainage between a kidney and a bladder comprising:
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a body portion comprising an elongated tubular member, the body portion having a body portion proximate end and a body portion distal end, the tubular member having an axial lumen therein adapted to provide fluid communication from the body portion distal end to the body portion proximal end; and
a kidney curl portion coupled to the body portion distal end, the kidney curl portion comprising a plurality of petals adapted to flare outwardly from the body portion distal end when in a free state, the body portion proximate end adapted for placement in the bladder, the body portion adapted for placement in the ureter, and the kidney curl portion adapted for placement in the kidney and for retention in the kidney. - View Dependent Claims (16, 17, 18)
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19. A method for placing a stent comprising:
inserting a body portion into a ureter, a distal end portion into a kidney and a proximal end portion into a bladder, the stent comprising;
a body portion comprising an elongated tubular member, the body portion having a body portion proximate end and a body portion distal end; and
a kidney curl portion comprising an elongated filament, the kidney curl portion having a coupling end and a terminating end, the coupling end coupled to the body portion distal end, the tubular member having an axial lumen therein adapted to provide fluid communication from the body portion distal end to the body portion proximal end, the kidney curl portion having a three-dimensional configuration that substantially conforms to the three-dimensional randomly convoluting calyx space of a kidney. - View Dependent Claims (20)
Specification