Cutting wire assembly for use with a catheter
First Claim
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1. A method of treating a lesion in a body lumen in a patient'"'"'s body, the method comprising:
- inserting a cutting member and tracking member through a first lumen of a catheter;
withdrawing the catheter from the cutting member and tracking member and removing the catheter from the body lumen;
subsequently inserting the catheter over a proximal end of the tracking member extending outside the patient'"'"'s body, and leaving the cutting member outside the catheter as the catheter is advanced over the tracking member; and
expanding a portion of the catheter to move the cutting member into cutting contact with the lesion to thereby enlarge a passageway in the body lumen.
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Abstract
A method of treating a lesion in a body lumen to enlarge a passageway in the lumen including inserting a cutting member and tracking member through a first lumen of a catheter, withdrawing the catheter from the cutting member and tracking member, inserting the catheter over the tracking member and leaving the cutting member outside the catheter, and expanding a portion of the catheter to move the cutting member into cutting contact with the lesion. A device for treating a lesion in a body lumen including a cutting member and tracking member is also provided.
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Citations
20 Claims
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1. A method of treating a lesion in a body lumen in a patient'"'"'s body, the method comprising:
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inserting a cutting member and tracking member through a first lumen of a catheter; withdrawing the catheter from the cutting member and tracking member and removing the catheter from the body lumen; subsequently inserting the catheter over a proximal end of the tracking member extending outside the patient'"'"'s body, and leaving the cutting member outside the catheter as the catheter is advanced over the tracking member; and expanding a portion of the catheter to move the cutting member into cutting contact with the lesion to thereby enlarge a passageway in the body lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of treating a lesion in a body lumen in a patient'"'"'s body, the method comprising:
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inserting a cutting member and tracking member into the body lumen; inserting a catheter into the body and over a proximal end of the tracking member extending outside the patient'"'"'s body so the tracking member extends through a first lumen of the catheter and the cutting member does not extend through the first lumen; and moving the cutting member away from the tracking member into cutting contact with the lesion to enlarge a passageway in the body lumen. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method of treating a lesion in a body lumen, the method comprising:
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inserting a cutting member and tracking member into the body lumen; inserting a catheter over the tracking member so the tracking member extends through a first lumen of the catheter and the cutting member does not extend through the first lumen; and moving the cutting member away from the tracking member into cutting contact with the lesion to enlarge a passageway in the body lumen; wherein the step of inserting a cutting member and tracking member comprises a step of inserting the cutting member and tracking member through a lumen of an angioplasty catheter, the angioplasty catheter being different than the catheter inserted over the tracking member.
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20. A method of treating a lesion in a body lumen, the method comprising:
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inserting a cutting member and tracking member into the body lumen; inserting a catheter over the tracking member so the tracking member extends through a first lumen of the catheter and the cutting member does not extend through the first lumen; and moving the cutting member away from the tracking member into cutting contact with the lesion to enlarge a passageway in the body lumen; wherein the cutting member is substantially circular in cross-section in a proximal region and substantially triangular in a distal region.
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Specification