Angioplasty method and means for performing angioplasty
First Claim
1. A catheter assembly, comprising, an elongated hollow anchoring catheter having a distal end, and a tubular wall with inner and outer surfaces, a hollow guiding catheter having a distal end and a proximal end housing said anchoring catheter, a first anchoring balloon member attached to the outer surface of said tubular wall of the anchoring catheter and adapted upon inflation to project outwardly from said tubular wall to engage the guiding catheter and secure said anchoring catheter within said guiding catheter, an elongated treatment catheter extending through an opening in said tubular wall of said anchoring catheter and having a distal end, and a guide wire extending through the treatment catheter and along which the treatment catheter is slidable.
2 Assignments
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Accused Products
Abstract
An angioplasty catheter assembly having an anchoring catheter within a guide catheter such that the anchoring catheter anchors to the guide catheter and the inner wall of a coronary artery; the anchoring catheter has an opening in its tubular wall such that a guide wire and balloon dilatation catheter can be disposed therethrough and extending through the length of the anchoring catheter.
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Citations
18 Claims
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1. A catheter assembly, comprising,
an elongated hollow anchoring catheter having a distal end, and a tubular wall with inner and outer surfaces, a hollow guiding catheter having a distal end and a proximal end housing said anchoring catheter, a first anchoring balloon member attached to the outer surface of said tubular wall of the anchoring catheter and adapted upon inflation to project outwardly from said tubular wall to engage the guiding catheter and secure said anchoring catheter within said guiding catheter, an elongated treatment catheter extending through an opening in said tubular wall of said anchoring catheter and having a distal end, and a guide wire extending through the treatment catheter and along which the treatment catheter is slidable.
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9. A catheter assembly, comprising:
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a hollow anchoring catheter extendible through a guiding catheter;
a treatment catheter extendible through an opening in the tubular wall of the anchoring catheter; and
an external balloon attached to the anchoring catheter and adapted to expand radially outwardly upon inflation to engage the blood vessel wall and fix the anchoring catheter against movement relative to the blood vessel. - View Dependent Claims (11, 12, 13)
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10. The catheter assembly of claim 10 further comprising an internal balloon attached to the anchoring catheter adapted to expand radially inwardly upon inflation to engage the treatment catheter and fix the anchoring catheter against movement relative to the dilatation catheter.
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14. A method for performing angioplasty, comprising:
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inserting a guide wire through a treatment catheter to form a treatment catheter assembly;
inserting the treatment catheter assembly through an opening in a tubular wall of an anchoring catheter to form a unit;
inserting a guiding catheter into a patient such that the distal end of the guiding catheter is inserted into the origin of the patient'"'"'s artery;
inserting the unit through the guiding catheter;
extending the anchoring catheter partially out of the guiding catheter and into the blood vessel;
inflating an external balloon attached to the anchoring catheter to secure the anchoring catheter to the within the blood vessel;
sliding the treatment catheter through the opening in the tubular wall of the anchoring catheter and along the guide wire until a treatment element disposed on the treatment catheter is adjacent a plaque area of the blood vessel;
actuating the treatment element to treat the plaque area of the blood vessel. - View Dependent Claims (15, 16, 17, 18)
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Specification