PROSTATIC STENT PLACEMENT DEVICE
First Claim
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1. A method for inserting a stent in a patient, comprising the steps of:
- (a) inserting a stent into an outer sheath;
(b) inserting a catheter and a stent positioner into the outer sheath, until the catheter extends through a lumen in the stent and the distal end of the stent positioner contacts a proximal end of the stent;
(c) positioning the stent positioner within the outer sheath so a distal end of the stent is proximal of a balloon on the catheter along a longitudinal axis of the catheter;
(d) inserting the outer sheath, the catheter, the stent, and the stent positioner into a patient and selectively withdrawing the outer sheath;
(e) inflating the balloon in the catheter;
(f) positioning the stent within the patient; and
(g) selectively withdrawing the positioning shaft from the patient.
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Accused Products
Abstract
The present invention provides a method and apparatus for maintaining urine flow during and after urological procedures. The invention includes a stent for long term insertion into a patient'"'"'s urinary tract, a Foley catheter which is used to support the stent during placement, a positioning shaft which is used to position the stent with respect to the catheter, and a protective sheath that retains these components in place during insertion of the stent. Alternatively, a Foley catheter with two balloons may be used in place of the stent positioner, with the stent being accurately positioned with one of the two balloons being surrounded by the stent.
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Citations
23 Claims
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1. A method for inserting a stent in a patient, comprising the steps of:
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(a) inserting a stent into an outer sheath;
(b) inserting a catheter and a stent positioner into the outer sheath, until the catheter extends through a lumen in the stent and the distal end of the stent positioner contacts a proximal end of the stent;
(c) positioning the stent positioner within the outer sheath so a distal end of the stent is proximal of a balloon on the catheter along a longitudinal axis of the catheter;
(d) inserting the outer sheath, the catheter, the stent, and the stent positioner into a patient and selectively withdrawing the outer sheath;
(e) inflating the balloon in the catheter;
(f) positioning the stent within the patient; and
(g) selectively withdrawing the positioning shaft from the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stent positioning device comprising:
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(a) a catheter including a distal end and a proximal end and with a balloon positioned on the distal end, (b) a stent with a distal end and a proximal end, wherein the stent may surround the catheter and be positioned rearwardly of the balloon along a longitudinal axis of the catheter when the stent positioning device;
(c) a stent positioner formed to substantially surround the catheter and be positioned proximally of a proximal end of the stent when the stent positioning device is assembled; and
(d) an outer sheath surrounding the stent, the stent positioner, and the majority of the catheter when the stent positioning device is assembled. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A stent positioning device comprising:
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(a) a catheter including a distal end and a proximal end, with a first balloon positioned on the distal end and a second balloon positioned proximally of the first balloon along a longitudinal axis of the catheter;
(b) a stent with a distal end and a proximal end, the stent surrounding the second balloon of the catheter when the stent positioning device is assembled; and
(c) an outer sheath surrounding the stent and the majority of the catheter when the stent positioning device is assembled. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification