Intravascular device for coronary heart treatment
First Claim
1. A fluid delivery system comprising:
- a relatively flexible tube having an outer diameter sized for insertion into a coronary vessel, an inner diameter defining a lumen therethrough, and a proximal and a distal end, the extent therebetween defining an extension length of the flexible tube, the length of the tube being sized so that the proximal end of the tube aligns with a distal end of a guide catheter and the distal end extends into the vessel to reach a treatment site; and
a push rod attached to a proximal end of the tube for slidably positioning the tube in the vessel;
an elongated attachment tube having a proximal end and a distal end and sized for placement through a guide catheter; and
coupling means for fluidly connecting the distal end of the attachment tube relative to the proximal end of the flexible tube to define a continuous lumen therealong for fluid delivery.
1 Assignment
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Accused Products
Abstract
An intravascular device having an elongated flexible tube sized for insertion into a coronary vessel beyond a distal end of a guide catheter. In use, the flexible tube has its proximal end within a guide catheter and has its distal end extending to a treatment site in a coronary artery. The device also including a push rod attached to a proximal end of the flexible tube to facilitate placement of the flexible tube within the coronary artery requiring treatment. In certain applications, the intravascular device is used as a drug (or other fluid) delivery device or as an aspiration device. In other applications, the intravascular device is used as a guiding means for placement of an angioplasty device, such as a guide wire or a balloon catheter. Additionally, an attachment tube may be provided which is designed to couple with a proximal end of the flexible tube to provide a continuous conduit for aspiration or fluid delivery to a treatment site in a coronary artery.
298 Citations
9 Claims
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1. A fluid delivery system comprising:
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a relatively flexible tube having an outer diameter sized for insertion into a coronary vessel, an inner diameter defining a lumen therethrough, and a proximal and a distal end, the extent therebetween defining an extension length of the flexible tube, the length of the tube being sized so that the proximal end of the tube aligns with a distal end of a guide catheter and the distal end extends into the vessel to reach a treatment site; and a push rod attached to a proximal end of the tube for slidably positioning the tube in the vessel; an elongated attachment tube having a proximal end and a distal end and sized for placement through a guide catheter; and coupling means for fluidly connecting the distal end of the attachment tube relative to the proximal end of the flexible tube to define a continuous lumen therealong for fluid delivery. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A kit for selective fluid delivery in combination with balloon dilatation, the kit comprising:
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an angioplasty balloon dilatation catheter; a guide catheter formed of a tubular member defining a guide lumen through which the angioplasty balloon catheter is guided; an intravascular device including a flexible tube having a proximal end and a distal end and lumen therethrough, an outer diameter thereof being sized for advancement through the guide catheter and for insertion into a coronary vessel and a diameter of the lumen of the flexible tube permitting placement over an angioplasty balloon catheter; a push rod attached to the proximal end of the flexible tube of the intravascular device for advancing the flexible tube into the vessel to align the distal end thereof at a treatment site; an elongated attachment tube having a proximal end and a distal end and sized to extend to and align with the proximal end of the flexible tube of the intravascular device, the attachment tube defining a lumen for drug delivery; and coupling means for fluidly connecting the distal end of the attachment tube with the proximal end of the flexible tube of the intravascular device to define a continuous lumen therealong for fluid delivery.
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8. An aspiration device for withdrawing clotting material from a coronary vessel, the aspiration device comprising:
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a flexible tube designed for insertion into a coronary vessel to reach a treatment site, the flexible tube having a proximal and a distal end defining an extension length of the flexible tube therebetween, the length of the tube being sized so that the proximal end of the tube aligns with a distal end of the guide catheter and the distal end extends into the vessel to reach a treatment site; a push rod attached to the proximal end of the tube for placement of the tube into the coronary vessel; and an elongated attachment tube designed for placement to the guide catheter, the elongated attachment tube having a proximal end and a distal end and sized to extend to and align with the proximal end of the flexible tube, the attachment tube defining a lumen for aspiration; coupling means for fluidly connecting the distal end of the attachment tube relative to the proximal end of the flexible tube to define a continuous lumen therealong for aspiration.
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9. A kit for selective aspiration treatment to remove blood clotting material in combination with balloon dilatation, the kit comprising:
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an angioplasty balloon dilatation catheter; a guide catheter formed of a flexible tube defining a guide lumen through which the angioplasty balloon catheter is guided; an intravascular device including a flexible tube having a proximal end and a distal end and lumen therethrough, an outer diameter of the flexible tube being sized for advancement through the guide catheter and for insertion into a coronary vessel; a push rod attached to the proximal end of the flexible tube for advancing the flexible tube into a vessel to align a distal end thereof at a treatment site; an elongated attachment tube sized to extend to and align with the proximal end of the flexible tube of the intravascular device, the attachment tube defining a lumen for aspiration.
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Specification