Stent delivery system
DCFirst Claim
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1. A method for delivering an intravascular stent in a patient'"'"'s body lumen, comprising:
- a. providing an intravascular stent delivery assembly comprising;
an elongated catheter having a proximal end and a distal end and an expandable member for expanding a stent;
the elongated catheter having a guide wire passageway extending for a least a portion therethrough from a first port at the catheter distal end and 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 stent removably mounted on the expandable member;
b. advancing the stent delivery assembly into the patient'"'"'s body lumen;
c. positioning the stent at a desired location in the patient'"'"'s body lumen;
d. inflating the expandable member by injecting inflation fluid through the inflation lumen;
e. expanding and implanting the stent in the patient'"'"'s body lumen;
f. deflating the expandable member by withdrawing the inflation fluid through the inflation lumen; and
g. withdrawing the stent delivery catheter assembly from the patient.
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Abstract
A stent delivery assembly includes a catheter for carrying an intravascular stent for use in a body lumen. The catheter assembly includes a rapid exchange feature in which a proximal port is spaced a relatively short distance form the distal end of the catheter and a relatively long distance from the proximal end of the catheter. A stent is mounted on the expandable member or balloon portion of the catheter.
295 Citations
19 Claims
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1. A method for delivering an intravascular stent in a patient'"'"'s body lumen, comprising:
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a. providing an intravascular stent delivery assembly comprising;
an elongated catheter having a proximal end and a distal end and an expandable member for expanding a stent;
the elongated catheter having a guide wire passageway extending for a least a portion therethrough from a first port at the catheter distal end and 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 stent removably mounted on the expandable member;
b. advancing the stent delivery assembly into the patient'"'"'s body lumen;
c. positioning the stent at a desired location in the patient'"'"'s body lumen;
d. inflating the expandable member by injecting inflation fluid through the inflation lumen;
e. expanding and implanting the stent in the patient'"'"'s body lumen;
f. deflating the expandable member by withdrawing the inflation fluid through the inflation lumen; and
g. withdrawing the stent delivery catheter assembly from the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for delivering an intravascular stent in a patient'"'"'s body lumen, comprising:
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a. dilating a stenosed region in the patient'"'"'s body lumen using a dilatation catheter;
b. withdrawing the dilatation catheter over a previouslyy positioned guide wire;
c. maintaining the guide wire in position in the patient'"'"'s body lumen so that a distal end of the guide wire remains distal of the dilated region;
d. providing an intravascular stent delivery assembly comprising;
an elongated catheter having a proximal end and a distal end and an expandable member for expanding a stent;
the elongated catheter having a guide wire passageway extending for a least a portion therethrough from a first port at the catheter distal end and 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 stent removably mounted on the expandable member;
e. advancing the stent delivery assembly into the patient'"'"'s body lumen;
f. positioning the stent at a desired location in the patient'"'"'s body lumen;
g. inflating the expandable member by injecting inflation fluid through the inflation lumen;
h. expanding and implanting the stent in the patient'"'"'s body lumen;
i. deflating the expandable member by withdrawing the inflation fluid through the inflation lumen; and
j. withdrawing the stent delivery catheter assembly from the patient.
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Specification