Rotational atherectomy device with distal embolic protection
First Claim
1. A rotational atherectomy device for removing a stenotic tissue from an iliac artery of a patient, the device comprising:
- a drive shaft that defines a longitudinal axis, the drive shaft being flexible and rotatable, the drive shaft having an elongated proximal portion and an elongated distal portion, at least the elongated proximal portion being configured to extend out of the patient through a first percutaneous access opening to a femoral artery that is ipsilateral to the stenotic tissue in the iliac artery;
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 abrasive element having a center of mass that is eccentric from the longitudinal axis of the drive shaft;
a proximal drive shaft centering element, the proximal drive shaft centering element being coaxially disposed about the elongated proximal portion of the drive shaft and configured to center at least a portion of the elongated proximal portion of the drive shaft during rotation of the drive shaft; and
a distal drive shaft centering element, the distal drive shaft centering element being coaxially disposed about the elongated distal portion of the drive shaft and configured to center at least a portion of the elongated distal portion of the drive shaft during rotation of the drive shaft,wherein the elongated distal portion extends distally beyond a distal-most end of the distal drive shaft centering element.
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Accused Products
Abstract
A rotational atherectomy device for removing a stenotic tissue from the iliac artery of a patient. The device comprises 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 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 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 of the patient.
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Citations
22 Claims
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1. A rotational atherectomy device for removing a stenotic tissue from an iliac artery of a patient, the device comprising:
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a drive shaft that defines a longitudinal axis, the drive shaft being flexible and rotatable, the drive shaft having an elongated proximal portion and an elongated distal portion, at least the elongated proximal portion being configured to extend out of the patient through a first percutaneous access opening to a femoral artery that is ipsilateral to the stenotic tissue in the iliac artery; 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 abrasive element having a center of mass that is eccentric from the longitudinal axis of the drive shaft; a proximal drive shaft centering element, the proximal drive shaft centering element being coaxially disposed about the elongated proximal portion of the drive shaft and configured to center at least a portion of the elongated proximal portion of the drive shaft during rotation of the drive shaft; and a distal drive shaft centering element, the distal drive shaft centering element being coaxially disposed about the elongated distal portion of the drive shaft and configured to center at least a portion of the elongated distal portion of the drive shaft during rotation of the drive shaft, wherein the elongated distal portion extends distally beyond a distal-most end of the distal drive shaft centering element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A rotational atherectomy device for removing a stenotic tissue from an iliac artery of a patient, the device comprising:
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a drive shaft that defines a longitudinal axis, the drive shaft being flexible and rotatable, the drive shaft having an elongated proximal portion and an elongated distal portion, at least the elongated proximal portion being configured to extend out of the patient through a first percutaneous access opening to a femoral artery that is ipsilateral to the stenotic tissue in the iliac artery; 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 abrasive element having a center of mass that is eccentric from the longitudinal axis of the drive shaft; a proximal drive shaft centering element, the proximal drive shaft centering element being coaxially disposed about the elongated proximal portion of the drive shaft and configured to center at least a portion of the elongated proximal portion of the drive shaft during rotation of the drive shaft; and a distal drive shaft centering element, the distal drive shaft centering element being coaxially disposed about the elongated distal portion of the drive shaft and configured to center at least a portion of the elongated distal portion of the drive shaft during rotation of the drive shaft, wherein the elongated distal portion extends distally beyond a distal-most end of the distal drive shaft centering element, and wherein the drive shaft is configured to advance over a guidewire, the guidewire being withdrawable from the drive shaft after advancement of the drive shaft. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification