Hollow stranded wire
AssigneeTokusen Kogyo Co., Ltd.
InventorYoshinobu Kageyama
Life of this patent
Estimating the term…
Abstract
A hollow stranded wire (2) has a first layers (4) and second layers (6). The second layer is located outside the first layer. The first layer is formed by twisting eight first element wires (8) which are flat wires. The second layer is formed by twisting eight second element wires (10) which are flat wires. A ratio (Ww/Tw) of a width Ww to a thickness Tw of each flat wire is from 2 to 11. A twisting direction of the second element wires is opposite that of the first element wires. A twisting angle of each first element wire is not greater than 85°. A twisting angle of each second element wire is not greater than 85°. A ratio (D/T) of an average diameter D to a thickness T of the hollow stranded wire is not less than 5 and not greater than 20.
Claims6
A hollow stranded wire comprising:
- a first layer formed by twisting three or more first element wires;
- and
- a second layer formed by twisting three or more second element wires and located outside the first layer, wherein
- the first element wires and/or the second element wires are each a flat wire,
- a twisting direction of the second element wires is opposite to a twisting direction of the first element wires,
- a ratio (D/T) of an average diameter D of the hollow stranded wire to a thickness T of the hollow stranded wire is not less than 5 and not greater than 20, and
- a ratio (Ww/Tw) of a width Ww of the flat wire to a thickness Tw of the flat wire is not less than 2 and not greater than 11.
A medical device comprising a hollow stranded wire, wherein
- the hollow stranded wire includes a first layer formed by twisting three or more first element wires, and a second layer formed by twisting three or more second element wires and located outside the first layer,
- the first element wires and/or the second element wires are each a flat wire,
- a twisting direction of the second element wires is opposite to a twisting direction of the first element wires,
- a ratio (D/T) of an average diameter D of the hollow stranded wire to a thickness T of the hollow stranded wire is not less than 5 and not greater than 20, and
- a ratio (Ww/Tw) of a width Ww of the flat wire to a thickness Tw of the flat wire is not less than 2 and not greater than 11.
A hollow stranded wire comprising:
- a first layer formed by twisting three or more first element wires;
- a second layer formed by twisting three or more second element wires and located outside the first layer;
- and
- a third layer formed by twisting three or more third element wires and located outside the second layer, wherein
- at least one of each first element wire, each second element wire, and each third element wire is a flat wire,
- a twisting direction of the second element wires is opposite to a twisting direction of the first element wires,
- a twisting direction of the third element wires is the same as the twisting direction of the first element wires,
- a ratio (D/T) of an average diameter D of the hollow stranded wire to a thickness T of the hollow stranded wire is not less than 5 and not greater than 20, and
- a ratio (Ww/Tw) of a width Ww of the flat wire to a thickness Tw of the flat wire is not less than 2 and not greater than 11.
Dependencies are inferred from the claim text.