一种弯曲结构、插入部和医疗导管
By introducing an offset traction force into the closed-lined curved tube, a combined deformation of bending and torsion is achieved, solving the problem of the difficulty in bending the closed-lined tube and improving the bending sensitivity and controllability of the catheter.
CN121944345BActive Publication Date: 2026-07-17HUNAN VATHIN MEDICAL INSTR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN VATHIN MEDICAL INSTR CO LTD
- Filing Date
- 2026-04-01
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In the existing technology, the conduit with a closed inner liner requires a large traction force and has a hysteresis response during bending, making it difficult to achieve flexible bending.
Method used
By combining an inner-lined curved tube with a traction rope, and by setting an axially offset traction force direction, the inner-lined curved tube undergoes a combined deformation of bending and torsion when subjected to force, thus reducing the difficulty of starting the bending process.
Benefits of technology
While maintaining structural integrity, it reduces the driving force required for bending operations, improves the sensitivity and controllability of bending actions, and optimizes the bending start state.
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Smart Images
Figure CN121944345B_ABST
Abstract
本申请提供了一种弯曲结构、插入部和医疗导管，涉及医疗器械技术领域。本申请包括内衬弯曲管和牵引绳，所述内衬弯曲管为沿周向连续封闭设置的管体结构，所述牵引绳的远端相对于所述内衬弯曲管的远端固定连接，所述牵引绳能够向所述内衬弯曲管施加牵引力，所述牵引力的作用方向偏离所述内衬弯曲管的轴向。本申请与现有技术相比，能够优化弯曲启动状态，降低弯曲操作所需的驱动力，并减小导管整体实现弯曲动作的难度，从而提升弯曲响应性能和操控效率。
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