Wire for removing intravascular foreign body and medical instrument
First Claim
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1. A wire for removing an intravascular foreign body, comprising:
- a flexible elongated wire body;
a capturing part arranged at a forward end of the wire body;
a space formed in the capturing part to capture an intravascular foreign body; and
an auxiliary wire arranged at the forward end of the wire body, the auxiliary wire being movable relative to the capturing part to position the auxiliary wire in a first state in which the auxiliary wire projects into the space and a second state in which the auxiliary wire is retreated from the first state.
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Abstract
A wire for removing an intravascular foreign body includes a flexible long wire body, a capturing part which is arranged on the forward end of the wire body and in which is formed a space for capturing an intravascular foreign body, and an auxiliary wire which is arranged on the forward end of the wire body. The auxiliary wire assumes a first state in which it projects into the space and a second state in which it retreats from the space as it moves relative to the capturing part.
35 Citations
20 Claims
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1. A wire for removing an intravascular foreign body, comprising:
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a flexible elongated wire body;
a capturing part arranged at a forward end of the wire body;
a space formed in the capturing part to capture an intravascular foreign body; and
an auxiliary wire arranged at the forward end of the wire body, the auxiliary wire being movable relative to the capturing part to position the auxiliary wire in a first state in which the auxiliary wire projects into the space and a second state in which the auxiliary wire is retreated from the first state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wire for removing an intravascular foreign body, comprising:
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a flexible wire tube possessing an outer diameter which permits the flexible wire tube to be positioned in a blood vessel of a living body;
a plurality of capturing wires extending forward of a forward end of the flexible wire tube and together defining a space of a size to capture an intravascular foreign body; and
an auxiliary wire, the auxiliary wire and the plurality of capturing wires being movable relative to one another to position the auxiliary wire in one position in which the auxiliary wire projects forward of the forward end of the flexible wire tube into the space to engage an intravascular foreign body captured in the space and another position in which the auxiliary wire is retracted relative to the one position in a direction away from the space. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of removing an intravascular foreign body from a blood vessel of a living body, comprising:
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introducing an intravascular foreign body removing wire in a blood vessel of a living body, the intravascular foreign body removing wire comprising a flexible elongated wire body, a capturing part positioned forward of a forward end of the wire body, and an auxiliary wire;
capturing an intravascular foreign body within a space of the capturing part;
initiating relative movement between the capturing part and the auxiliary wire to move the auxiliary wire into engagement with the intravascular foreign body captured within the space of the capturing part; and
withdrawing the intravascular foreign body removing wire from the blood vessel with the intravascular foreign body captured within the space of the capturing part. - View Dependent Claims (19, 20)
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Specification