FLEXIBLE CATHETER USING WIRES
First Claim
1. A flexible catheter comprising:
- an insertion unit including a plurality of bending portions arranged in a longitudinal direction;
an operation unit connected to the insertion unit;
a direction adjustment wire having one end connected to the operation unit and a remaining end fixed to the insertion unit, the direction adjustment wire being configured to be capable of bending the bending portions depending on a length pulled by the operation unit; and
a limiter provided on the direction adjustment wire and configured to allow respective bending portions to be sequentially bent as the direction adjustment wire is pulled.
1 Assignment
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Accused Products
Abstract
The present invention relates to a flexible catheter comprising: an insertion unit comprising multiple bending parts disposed in a lengthwise direction; an operation unit connected to the insertion unit; direction-controlling wires which have an end connected to the operation unit and the other end fixed to the insertion unit and are configured so as to bend the bending parts according to the length pulled by the operation unit; and limiters provided on the direction-controlling wires and configured such that the respective multiple bending parts are sequentially bent as the direction-controlling wires are pulled. The flexible catheter using wires, according to the present invention, allows for smooth steering of 180 degrees or more, is capable of sequentially bending the bending parts and thus steering to an angle optimized for a particular tissue, and therefore has the effect of efficiently and accurately carrying out a surgical operation.
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Citations
11 Claims
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1. A flexible catheter comprising:
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an insertion unit including a plurality of bending portions arranged in a longitudinal direction; an operation unit connected to the insertion unit; a direction adjustment wire having one end connected to the operation unit and a remaining end fixed to the insertion unit, the direction adjustment wire being configured to be capable of bending the bending portions depending on a length pulled by the operation unit; and a limiter provided on the direction adjustment wire and configured to allow respective bending portions to be sequentially bent as the direction adjustment wire is pulled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification