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Application fields of nickel titanium alloy capillary tubes

Application fields of nickel titanium alloy capillary tubes

2026-08-04 11:32:45

Nickel titanium alloy capillary tube, core characteristics: super elasticity, shape memory effect, fatigue resistance, biocompatibility, corrosion resistance, can be bent at large angles without easily collapsing. Nickel titanium alloy capillaries have a wide range of applications in medical, industrial automation, and aerospace fields.


1、 Medical devices (primary application)

(1)Interventional catheter system

Catheter sheaths, microcatheters, and stent delivery sheaths can bend at large angles within blood vessels and lumens, resist torsion and bending, reduce vascular damage, and are used for nerve intervention and peripheral vascular intervention.

(2)Minimally invasive instruments and fittings

Endoscopic operation fittings, biopsy instrument sleeves, and stone retrieval instrument substrates can be processed by necking, slotting, and laser cutting.

(3)Dental instruments

Root canal filing base tube and dental delivery needle tube, utilizing super elasticity, automatically rebound after bending under force, suitable for complex curved cavities of root canals.

(4)Implantable accessories

Vascular stent substrate, drug delivery and implantation tubing; Medical grade must meet ASTM F2063, with electrolytic polishing and low nickel precipitation treatment.

(5)Surgical robots

Flexible actuator sleeve with high fatigue life after repeated bending cycles, suitable for minimally invasive surgical flexible motion mechanisms.


Nickel titanium alloy capillary tube

Nickel titanium alloy capillary tube


2、 Industrial and Precision Automation

(1)Shape memory driven pipe fittings

Temperature sensing driven tube, automatic deformation reset for temperature changes, used as a micro valve and temperature control actuator.

(2)Sensor protection sleeve

Small space sensor protective tube, resistant to repeated deformation and vibration, used for precision detection equipment.

(3)Fluid microchannels

Trace medium transportation, analytical instrument chromatography pipeline, corrosion-resistant, can be made in extremely small inner diameter thin-walled specifications.

(4)Flexible mechanism components

Micro robots with flexible joints and elastic sleeves can replace complex spring structures and achieve large deformation rebound.


3、 Aerospace

(1)Temperature controlled driving components, utilizing shape memory effect to achieve passive deployment and locking mechanism;

(2)Precise fluid pipelines in narrow spaces, anti fatigue, suitable for high and low temperature alternating working conditions.


4、 Key distinctions in selection

-Medical scenario: Select super elastic nickel titanium, control phase transition temperature Af, electrolytic polishing, clean treatment, provide material report;

-Drive components: Choose shape memory nickel titanium and customize phase transition temperature according to working conditions;

-Fluid transport only: Compared to ordinary titanium alloy capillaries, it has lower cost and no memory function.


Huizhou Pengchengrui Technology Co., Ltd. supplies high-quality nickel titanium alloy capillary tubes with excellent superelasticity, shape memory effect, biocompatibility, high dimensional accuracy, and can be used for electrolytic polishing and deep cutting. Suitable for medical intervention devices, precision automation, aerospace and other fields, supporting customized specifications, providing material testing reports, and offering customers stable and reliable nickel titanium precision pipe solutions.


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