ROTATIONAL ATHERECTOMY DEVICE WITH DISTAL EMBOLIC PROTECTION
First Claim
1. A rotational atherectomy device for removing a stenotic tissue from the iliac artery of a patient, the device comprising a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion, and an abrasive element mounted to the drive shaft between the elongated proximal and distal portions of the drive shaft and configured for rapid rotation together with the drive shaft, the drive shaft configured for extending throughout an entire length of the iliac artery to be treated and having one elongated portion of the drive shaft extending out of the patient through a first access opening located in a femoral artery which is ipsilateral to the treated artery, and the other elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient.
2 Assignments
0 Petitions
Accused Products
Abstract
A rotational atherectomy device for removing a stenotic tissue (3) from the iliac artery (1) of a patient. The device comprises a flexible, rotatable drive shaft (10) having an elongated proximal portion, an elongated distal portion, and an abrasive element (16) mounted to the drive shaft between the elongated proximal (11) and distal (14) portions of the drive shaft and configured for rapid rotation together with the drive shaft. The drive shaft is configured to extend throughout an entire length of the iliac artery to be treated and one elongated portion of the drive shaft extends out of the patient through a first access opening located in a femoral artery (9) which is ipsilateral to the treated artery. Another elongated portion of the drive shaft extends through a second access opening located in another peripheral artery (19) of the patient. A method for treating an iliac artery of a patient using such a rotational atherectomy device is disclosed. A pair of drive shaft sheaths (41, 43) extends over the elongate distal and proximal portions of the drive shaft and are equipped with balloons for a double occlusion.
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Citations
51 Claims
- 1. A rotational atherectomy device for removing a stenotic tissue from the iliac artery of a patient, the device comprising a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion, and an abrasive element mounted to the drive shaft between the elongated proximal and distal portions of the drive shaft and configured for rapid rotation together with the drive shaft, the drive shaft configured for extending throughout an entire length of the iliac artery to be treated and having one elongated portion of the drive shaft extending out of the patient through a first access opening located in a femoral artery which is ipsilateral to the treated artery, and the other elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient.
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12. (canceled)
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13. (canceled)
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14. (canceled)
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15. (canceled)
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18. (canceled)
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19. (canceled)
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20. (canceled)
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21. (Canceled)
- 23. A rotational atherectomy device for removing a stenotic tissue from an artery of a patient, the device comprising a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion, and an abrasive element mounted to the drive shaft between the elongated proximal and distal portions of the drive shaft and configured for rapid rotation together with the drive shaft, the drive shaft configured for extending throughout an entire length of the artery to be treated and having one elongated portion of the drive shaft extending out of the patient through a first access opening located in a femoral artery, and the other elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient.
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26. (canceled)
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27. (canceled)
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28. (canceled)
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29. (canceled)
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30. (canceled)
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31. (canceled)
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32. (canceled)
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33. (canceled)
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34. (canceled)
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35. (canceled)
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37. (canceled)
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38. A method of treating an iliac artery of a patient comprising the steps of:
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providing a flexible, rotatable drive shaft having an elongated proximal portion, an elongated distal portion, and an abrasive element mounted to the drive shaft between the elongated proximal and distal portions of the drive shaft and configured for rapid rotation together with the drive shaft; providing a pair of elongate drive shaft sheaths configured for slidably receiving the proximal portion of the drive shaft within one sheath and the distal portion of the drive shaft within the other sheath, the drive shaft sheaths having distal ends and configured for extending around the drive shaft into the treated iliac artery such that the distal ends of the sheaths are positioned in the artery spaced away from the abrasive element, the space between the distal ends of the drive shaft sheaths allowing to move the rotating abrasive element back and forth along the treated iliac artery and abrade the treated stenotic lesion; providing a prime mover for rotating the drive shaft and a source of pressurized fluid for pumping a fluid through one sheath and draining said fluid and abraded particles through the another) sheath; providing an advancer mechanism for repeatedly moving the rotating drive shaft and its abrasive element back and forth across the treated stenotic lesion; and positioning the drive shaft such that the drive shaft extends throughout an entire length of the iliac artery to be treated, one elongated portion of the drive shaft extending out of the patient through a first access opening located in one peripheral artery of the patient and the other elongated portion of the drive shaft extending through a second access opening located in another peripheral artery of the patient. - View Dependent Claims (39, 40)
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41. (canceled)
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42. (canceled)
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43. (canceled)
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44. (canceled)
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47. (canceled)
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48. (canceled)
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49. (canceled)
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50. (canceled)
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51. (canceled)
Specification