Patent ID: 11883617
Assignee: KANEKA CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A balloon catheter comprising:
a shaft having a distal side and a proximal side; and
a balloon provided at the distal side of the shaft,
wherein:
the balloon has a plurality of wings in a deflated state,
each of the wings has a projection on an outer surface in a wrapped state, and
each of the projections has a projecting direction, which is opposite to a wrapping direction of the wing,
in a cross section that is perpendicular to a long axis direction of the balloon, a base of the projection has a base first end part farther from a tip of the wing and a base second end part closer to the tip of the wing,
a tip of the projection is closer to a base of the wing with respect to a line passing through the base first end part which is perpendicular to a line passing through the base first end part and the base second end part,
the line passing through the base first end part which is perpendicular to the line passing through the base first end part and the base second end part as a boundary line, the base second end part is located on a side of the boundary line where the tip of the wing exists, and
the line passing through the base first end part which is perpendicular to the line passing through the base first end part and the base second end part as a boundary line, the tip of the projection is located on a side of the boundary line where the base second end part does not exist.