Stent with flexible elements
First Claim
1. A stent comprising:
- an elongated tubular member having a body portion, a proximate end portion, and a distal end portion, the tubular member having an axial lumen therein adapted to provide fluid communication from the distal end portion to the proximal end portion, the tubular member further comprising a resilient distal transition region coupling the distal end portion to the body portion.
6 Assignments
0 Petitions
Accused Products
Abstract
In accordance with the invention, there are provided medical devices for providing a fluid passage between two areas in the body. An embodiment of the present invention relates to a stent comprising a tubular member comprising a distal transition region and a proximal transition region adapted to provide the ability for the stent to accommodate the dynamic urinary tract anatomy that stretches and relaxes. The distal transition region and the proximal transition region is adapted to exhibit a physical property that provides both longitudinal elasticity, allowing for stretch and recoil, as well as radial elasticity, allowing for bending and recovery.
-
Citations
21 Claims
-
1. A stent comprising:
an elongated tubular member having a body portion, a proximate end portion, and a distal end portion, the tubular member having an axial lumen therein adapted to provide fluid communication from the distal end portion to the proximal end portion, the tubular member further comprising a resilient distal transition region coupling the distal end portion to the body portion. - View Dependent Claims (2, 3, 4, 5, 6)
-
7. A stent comprising:
an elongated member having a body portion, a proximate end portion, and a distal end portion, the elongated member formed into a helical coil defining an axial lumen therein adapted to provide fluid communication from the distal end portion to the proximal end portion, the elongated member comprising a resilient material. - View Dependent Claims (8, 9, 10)
-
11. A ureteral stent for maintaining drainage between a kidney and a bladder comprising:
an elongated tubular member having a body portion, a proximate end portion, and a distal end portion, the tubular member having an axial lumen therein adapted to provide fluid communication from the distal end portion to the proximal end portion, the tubular member further comprising a resilient distal transition region coupling the distal end portion to the body portion, the proximal end portion adapted for placement in the bladder, the distal end portion including retention means adapted for retaining the distal end portion in the kidney. - View Dependent Claims (12, 13, 14, 15)
-
16. A ureteral stent for maintaining drainage between a kidney and a bladder comprising:
an elongated member having a body portion, a proximate end portion, and a distal end portion, the elongated member formed into a helical coil defining an axial lumen therein adapted to provide fluid communication from the distal end portion to the proximal end portion, the elongated member comprising a resilient material, the proximal end portion adapted for placement in the bladder, the distal end portion including retention means adapted for retaining the distal end portion in the kidney. - View Dependent Claims (17, 18, 19)
-
20. 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;
an elongated member having a body portion, a proximate end portion, and a distal end portion, the elongated member formed into a helical coil defining an axial lumen therein adapted to provide fluid communication from the distal end portion to the proximal end portion, the elongated member comprising a resilient material, the distal end portion further comprising a guidewire-coupling fixture adapted to removably couple with an end of a guidewire providing a means for the guidewire to push the distal end portion into anatomy. - View Dependent Claims (21)
-
Specification