Delivery device for medical tubular body
AssigneeKaneka Corporation
InventorShizuo ICHIMURA
Life of this patent
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Abstract
Disclosed is a delivery device for a medical tubular body that is unlikely to be kinked without decreasing handleability. The delivery device for a medical tubular body has an outer tube in which the medical tubular body is to be disposed; an inner rod disposed in the outer tube; and a guidewire insertion member disposed proximal to the medical tubular body, the guidewire insertion member having a penetration passage in which a guidewire is to be passed through; the inner rod is partially fixed to the guidewire insertion member; and the guidewire insertion member having a cross-sectional area in a cross-section perpendicular to an axis direction satisfying the formula (1): cross-sectional area Sa>cross-sectional area Sb (1).
Claims18
A delivery device for a medical tubular body, comprising:
- an outer tube in which the medical tubular body is to be disposed, the outer tube having a distal side and a proximal side;
- an inner rod disposed in the outer tube;
- and
- a guidewire insertion member disposed proximal to the medical tubular body, the guidewire insertion member having a penetration passage, through which a guidewire is to be passed;
- the inner rod partially fixed to the guidewire insertion member;
- and
- the guidewire insertion member having a cross-sectional area in a cross-section perpendicular to an axis direction satisfying the following formula (1):
- cross-sectional area Sa>cross-sectional area Sb (1),
- in the formula (1), the cross-sectional area Sa is a cross-sectional area of the guidewire insertion member at a middle portion in the axis direction between a distal end of the guidewire insertion member and a proximal end of a fixing portion where the guidewire insertion member and the inner rod are fixed to each other, and the cross-sectional area Sb is a cross-sectional area of the guidewire insertion member at the proximal end of the fixing portion.
Dependencies are inferred from the claim text.