Fixed wire catheter exchange device
First Claim
1. An intraluminal system for removing an elongated device, which has proximal and distal ends and which is disposed within a patient'"'"'s body lumen, without loss of access to a lumenal region about the distal end of the elongated device, comprising:
- a) an elongated exchange member having proximal and distal ends; and
b) a flexible strand extending from the distal end of the exchange member and forming at least a partial loop which is configured to be disposed about and slidable over the elongated device to be removed to facilitate advancement of the exchange member over the elongated device to a desired location within the patient'"'"'s body lumen.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for removing an in-place intravascular device such as a catheter or guidewire from a patient'"'"'s body lumen such as from a coronary artery and advancing a catheter or other similar device through the vascular system until its distal end is located at a desired location within the vascular system. The system includes an exchange catheter, which may be a dilatation catheter, having a flexible strand forming a loop at the distal end of the catheter which is adapted to be disposed about the guidewire or catheter which is in-place within the patient. The loop is tightened about the elongated intraluminal in-place device to be removed so that the catheter can be advanced over the in-place device until the distal end of the catheter is at a desired location within the patient'"'"'s vasculature. The catheter may be used to perform a diagnostic or therapeutic procedure such as an angioplasty or a replacement device may be advanced through an inner lumen and out the distal end of the catheter.
125 Citations
36 Claims
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1. An intraluminal system for removing an elongated device, which has proximal and distal ends and which is disposed within a patient'"'"'s body lumen, without loss of access to a lumenal region about the distal end of the elongated device, comprising:
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a) an elongated exchange member having proximal and distal ends; and b) a flexible strand extending from the distal end of the exchange member and forming at least a partial loop which is configured to be disposed about and slidable over the elongated device to be removed to facilitate advancement of the exchange member over the elongated device to a desired location within the patient'"'"'s body lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An intraluminal system for advancing an elongated catheter over on elongated intraluminal device disposed within a patient'"'"'s body lumen to a lumenal region about a distal portion of the elongated intraluminal device comprising:
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a) an elongated catheter having proximal and distal ends and an inner lumen extending therein to a port in the distal end thereof; b) an elongated flexible strand disposed within the inner lumen of the catheter with a portion of the strand extending out the port in the distal end of the catheter and forming a loop exterior thereto adapted to be disposed about the elongated intraluminal device disposed within the patient'"'"'s body lumen to facilitate advancement of the catheter over the elongated intravascular device to a desired location within the patient'"'"'s body lumen. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method of advancing a catheter over an elongated intravascular device disposed within a patient'"'"'s vascular system comprising:
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a) providing an elongated catheter having proximal and distal ends, a first inner lumen extending therein to a first port in the distal end of the catheter, a flexible strand extending from the distal end of the catheter and forming a loop exterior thereto; b) disposing the loop formed by the flexible strand about the intravascular device disposed within the patient'"'"'s vascular system; and c) advancing the catheter within the patient'"'"'s vascular system with the loop formed by the flexible strand sliding over the intravascular device disposed within the patient'"'"'s vascular system until the distal end of the catheter is at a desired location within the patient'"'"'s vascular system. - View Dependent Claims (21, 22, 23)
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24. A method for performing an angioplasty procedure within a patient'"'"'s artery, comprising:
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a) providing an elongated dilatation catheter having proximal and distal ends, a first inner lumen extending therein to a first port in the distal end of the dilatation catheter, an inflatable dilatation balloon on a distal portion of the dilatation catheter, a second inner lumen extending therein to an interior of the balloon, and a flexible strand which extends through the first inner lumen and out of the port in the distal end of the dilatation catheter and which forms a loop exterior thereto; b) disposing a proximal portion an intravascular device disposed within the patient'"'"'s artery within the loop; c) advancing the dilatation catheter into and within the patient'"'"'s artery, with loop sliding on the intravascular device, until the distal end of the dilatation catheter is located at a desired location within the patient'"'"'s artery; and d) inflating the dilatation balloon within a stenosis within the patient'"'"'s artery to perform an angioplasty procedure. - View Dependent Claims (25, 26, 27, 28, 29)
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30. A balloon dilatation catheter assembly, comprising:
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a) an elongated catheter shaft having proximal and distal ends, a first inner lumen extending therein to a port in the distal end of the shaft and a second inner lumen extending therein to a location proximal to the distal end of the shaft; b) an expandable dilatation balloon on a distal portion of the catheter shaft having an interior in fluid communication with the second inner lumen; c) a flexible strand disposed within the first inner lumen with a portion of the strand extending out the port in the distal end of the catheter shaft and forming a loop which is adapted to be mounted about an elongated intravascular device disposed within the patient'"'"'s artery to facilitate advancement of the catheter over the elongated intravascular device to a desired location within the patient'"'"'s artery. - View Dependent Claims (31)
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32. A stylet suitable for disposition within an inner lumen of an intravascular catheter, comprising:
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a) an elongated core member having a tapered distal portion; b) a flexible member having proximal and distal ends and being secured to the tapered distal portion of the core member; c) an elongated flexible strand having one end secured to the distal end of the flexible member. - View Dependent Claims (33, 34, 35, 36)
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Specification