Catheter
AssigneePiolax Medical Devices, Inc.
InventorMasanori KITAGAWA
Life of this patent
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Abstract
This catheter has a tube including a braided reinforcement member. The reinforcement member includes: a first spiral section formed by winding first wire materials at prescribed intervals in a first spiral direction; and a second spiral section formed by winding a second wire material in a second spiral direction different from the first spiral direction. The second spiral section has parallel contact portions in which two second wire materials are arranged in parallel so as to contact each other. Parallel contact portions are formed by being wound at prescribed intervals.
Claims4
A catheter comprising a tube that includes a reinforcement member made from a braid, wherein
- the reinforcement member includes
- a first helical portion made from a plurality of first wires, and formed by winding the plurality of first wires at a predetermined interval in a first helix direction, and
- a second helical portion formed by winding second wires in a second helix direction different from the first helix direction,
- the second helical portion includes a parallel contact portion where at least two of the second wires are disposed in parallel to be in contact with each other, and the parallel contact portion is knitted and formed to intersect with the first wires such that the parallel contact portion is positioned outside and inside of the first wires, and
- the parallel contact portion includes at least two sets of one set where at least two of the second wires are disposed in parallel to be in contact with each other and another set where at least two of the second wires different from the second wires forming the one set are disposed in parallel to be in contact with each other, and the second helical portion is formed by winding the two sets at a predetermined interval.
Dependencies are inferred from the claim text.