Medical device
AssigneeAsahi Intecc Co., Ltd.
InventorMakoto NISHIGISHI
Life of this patent
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Abstract
A medical device includes an expandable-and-contractible member capable of radially expanding and radially contracting, an incising member disposed on an outer circumference of the expandable-and-contractible member and having a hollow portion, a core wire inserted in the hollow portion, a distal tip, and a ring. The core wire is capable of sliding in a longitudinal direction of the medical device as the expandable-and-contractible member expands or contracts. The incising member is therefore not likely to come off upon radial expansion or radial contraction of the expandable-and-contractible member, and is therefore not likely to interfere with the expanding or contracting movement of the expandable-and-contractible member.
Claims12
A medical device comprising:
- an expandable-and-contractible member capable of radially expanding and radially contracting;
- an incising member disposed on an outer circumference of the expandable-and-contractible member and comprising a hollow portion open toward a proximal end of the medical device;
- a core wire inserted in the hollow portion of the incising member from the proximal end of the medical device;
- a distal tip fixed to both a distal end of the expandable-and-contractible member and a distal end of the incising member;
- and
- a ring fixed to both a proximal end of the expandable-and-contractible member and a proximal end of the core wire,
- wherein the core wire is capable of sliding in a longitudinal direction of the medical device within the hollow portion as the expandable-and-contractible member expands or contracts.
A medical device comprising:
- an expandable-and-contractible member capable of radially expanding and radially contracting;
- an incising member disposed on an outer circumference of the expandable-and-contractible member and comprising a hollow portion open toward a distal end of the medical device;
- a core wire inserted in the hollow portion of the incising member from the distal end of the medical device;
- a distal tip fixed to both a distal end of the expandable-and-contractible member and a distal end of the core wire;
- and
- a ring fixed to both a proximal end of the expandable-and-contractible member and a proximal end of the incising member,
- wherein the core wire is capable of sliding in a longitudinal direction of the medical device within the hollow portion as the expandable-and-contractible member expands or contracts.
Dependencies are inferred from the claim text.