Stent and therapeutic delivery system
First Claim
1. A catheter assembly for dispensing a stent and administering a therapeutic agent in a patient'"'"'s vessel, said catheter assembly comprising:
- A. elongated flexible tube means including lumens therein, said flexible tube means having a distal end portion for delivering a stent positioned distally on said flexible tube means to the site of the irregularity in the vessel and a proximal end portion for controlling said distal end portion through said lumens;
B. expansible means at said distal end portion for being extended and retracted responsive to manipulation at said proximal end portion through one of said lumens, the extension of said expansible means causing a deployment of the stent; and
C. delivery means associated with said flexible tube means for delivering a therapeutic agent proximate the stent and adjacent portions of the vessel responsive to manipulation of said proximal end portion.
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Accused Products
Abstract
Apparatus and a method for treating an irregularity in a wall of a vessel of a patient defined by an irregular or afflicted wall portion with adjacent normal wall portions comprises a catheter having a distal end portion for being guided through the vessel to the site of the irregularity. A balloon associated with said distal end portion of the catheter for selective inflating to contact the walls of the vessel urges a stent carried by the distal end portion of the catheter in a constricted condition for passage through the vessel into an expanded form with the stent spanning the afflicted wall portion and contacting the adjacent wall portions. The catheter is formed with lumens for inflating the balloon, for receiving a guidewire for guiding the catheter through the vessel, and for connecting a port in the catheter proximate the afflicted wall portion to enable delivery of a therapeutic agent into the vessel to contact the stent and the irregular wall portion.
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Citations
30 Claims
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1. A catheter assembly for dispensing a stent and administering a therapeutic agent in a patient'"'"'s vessel, said catheter assembly comprising:
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A. elongated flexible tube means including lumens therein, said flexible tube means having a distal end portion for delivering a stent positioned distally on said flexible tube means to the site of the irregularity in the vessel and a proximal end portion for controlling said distal end portion through said lumens; B. expansible means at said distal end portion for being extended and retracted responsive to manipulation at said proximal end portion through one of said lumens, the extension of said expansible means causing a deployment of the stent; and C. delivery means associated with said flexible tube means for delivering a therapeutic agent proximate the stent and adjacent portions of the vessel responsive to manipulation of said proximal end portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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12. An assembly as recited in 11 wherein said therapeutic agent comprises an antithrombin agent.
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25. A method for treating an irregularity in a vessel wall adjacent normal wall portions by disposing a stent in contact with the vessel wall, the stent being carried at a distal end of a catheter and said method comprising the steps of:
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A. positioning the distal end of the catheter proximate the vessel wall irregularity from a proximal end of the catheter; B. expanding the stent carried by the catheter to span the irregularity and contact the adjacent normal wall portions; C. inflating a balloon formed as part of the catheter proximate the distal end of the catheter to expand the balloon proximate the vessel walls to limit the flow of bodily fluid through the vessel past the stent; and D. introducing from the proximal end of the catheter a therapeutic agent for contacting the vessel proximate the irregular wall portion and the stent. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification