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US 2019/0336726 A1Published application
Catheter
AssigneeAsahi Intecc Co., Ltd.
InventorsSatoru MATSUMOTO, Takayuki HORI
Life of this patent
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Abstract
A catheter that prevents excessive concentration of stress while providing sufficient flexibility to a distal end portion of the catheter, even when the catheter is inserted and curved in patient's a blood vessel. Thus, breakage of the catheter at a radiopaque marker is prevented/reduced. The catheter includes a catheter tube and the radiopaque marker, which is disposed in the catheter tube. The radiopaque marker is fixed in the catheter so that a gap is provided between the radiopaque marker and the catheter tube in a radial direction of the catheter tube.
Claims3
A catheter comprising:
- a tubular body comprising:
- a tubular inner layer having a lumen;
- and
- an outer layer;
- a radiopaque marker disposed in the tubular body such that a gap including an empty space is provided between a radially inner side of the radiopaque marker and an outer surface of the tubular inner layer of the tubular body in a radial direction of the tubular body;
- and
- a reinforcing member disposed between the tubular inner layer and the radiopaque marker,
- wherein:
- the outer layer covers the radiopaque marker, the reinforcing member, and the tubular inner layer,
- a portion of the outer layer extends to the radially inner side of the radiopaque marker, and
- the empty space is formed by the radiopaque marker, the reinforcing member, the outer surface of the tubular inner layer, and the outer layer.
8 more elements
Dependencies are inferred from the claim text.