Rotational atherectomy device
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United States of America Patent
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-
May 10, 2016
Grant Date -
Nov 7, 2013
app pub date -
Jul 8, 2013
filing date -
Jul 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A rotational atherectomy device for removing a stenotic tissue from a vessel of a patient is disclosed. The device comprises a rotatable, flexible, hollow drive shaft having an open distal end. The drive shaft comprising a fluid impermeable wall, an abrasive element mounted to the drive shaft proximal to and spaced away from its distal end, the fluid impermeable wall being formed from a torque transmitting coil and at least one fluid impermeable membrane which define a lumen for the antegrade flow of pressurized fluid through the drive shaft and into a distal fluid inflatable support element to inflate said fluid inflatable support element. The distal fluid inflatable support element is located at the distal end of the drive shaft and has an outer wall comprising an outflow opening.
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