Bioresorbable stent delivery system
First Claim
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1. A method for delivering a bioresorbable intravascular stent in a patient'"'"'s body lumen, comprising:
- providing an intravascular stent delivery assembly comprising;
an elongated catheter having a proximal end and a distal end and an expandable balloon for expanding a stent, the elongated catheter having a guidewire passageway extending for a least a portion therethrough from a first port at the catheter distal end to a second port positioned between the catheter proximal end and a point proximal of the expandable member;
an inflation lumen extends from the catheter proximal end to an interior space within the expandable member; and
a bioresorbable stent removably mounted on the expandable balloon;
advancing the stent delivery assembly into the patient'"'"'s body lumen;
positioning the bioresorbable stent at a desired location in the patient'"'"'s body lumen;
inflating the expandable balloon by injecting inflation fluid through the inflation lumen;
expanding and implanting the stent in the patient'"'"'s body lumen;
deflating the expandable member by withdrawing the inflation fluid through the inflation lumen;
withdrawing the stent delivery catheter assembly from the patient; and
allowing the bioresorbable stent to be resorbed by the patients body over a predetermined time period.
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Abstract
A method and system for delivering a bioresorbable intravascular stent includes a delivery system or catheter having an expandable balloon. A guidewire lumen having a distal guidewire port and a proximal guidewire port spaced a relatively short distance from the distal end allows rapid exchange of the stent delivery system over a guidewire.
65 Citations
18 Claims
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1. A method for delivering a bioresorbable intravascular stent in a patient'"'"'s body lumen, comprising:
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providing an intravascular stent delivery assembly comprising;
an elongated catheter having a proximal end and a distal end and an expandable balloon for expanding a stent, the elongated catheter having a guidewire passageway extending for a least a portion therethrough from a first port at the catheter distal end to a second port positioned between the catheter proximal end and a point proximal of the expandable member;
an inflation lumen extends from the catheter proximal end to an interior space within the expandable member; and
a bioresorbable stent removably mounted on the expandable balloon;
advancing the stent delivery assembly into the patient'"'"'s body lumen;
positioning the bioresorbable stent at a desired location in the patient'"'"'s body lumen;
inflating the expandable balloon by injecting inflation fluid through the inflation lumen;
expanding and implanting the stent in the patient'"'"'s body lumen;
deflating the expandable member by withdrawing the inflation fluid through the inflation lumen;
withdrawing the stent delivery catheter assembly from the patient; and
allowing the bioresorbable stent to be resorbed by the patients body over a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An bioresorbable intravascular stent delivery assembly, comprising:
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a catheter having;
a proximal end and a distal end;
a distal guidewire port at the distal end;
a proximal guidewire port spaced a relatively short distance from the distal end and a relatively long distance from the proximal end;
a passageway for a guide wire extending between the distal guidewire port and the proximal guidewire port; and
an expandable balloon for expanding a stent positioned between the distal guidewire port and the proximal guidewire port; and
a bioresorbable stent disposed about the expandable balloon. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification