Buchanan Ingersoll & Rooney PC
Medical device
A medical device for incising a substance inside a biological lumen. The medical device includes a rotatable drive shaft, an outer sheath that accommodates the drive shaft, an intermediate portion connected to the drive shaft, at least one strut interlocked with the drive shaft, a linear motion shaft inside of the drive shaft, and a liquid feeding unit. The strut rotates with the drive shaft and is expandable radially outward in response to outward expansion of the intermediate portion. The linear motion shaft is movable relative to the drive shaft in the axial direction to cause the strut to expand radially outward. The liquid feeding unit supplies liquid to a space between the outer sheath and the drive shaft. The drive shaft includes a hole portion penetrating from an inner surface of the drive shaft through to an outer surface of the drive shaft.
TERUMO KABUSHIKI KAISHA
A A A A A A A A
A61B A61B A61B A61B A61B A61B A61B A61B
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Junichi Tomonori Taiga
Kobayashi Hatta Nakano