Huizhou Pengchengrui Technology Co., Ltd.

Nickel titanium snake bone tube is a flexible tubular component formed by laser cutting continuous hinged grooves from nickel titanium (nickel titanium) alloy pipes. It has a similar appearance to a section of snake bone and can be threaded with traction steel wires, cables, optical paths, and fluid channels inside.

Core features: 

super elasticity, anti torsion, anti bending, not easy to collapse or get stuck, anti fatigue, medical grade with biocompatibility; By using steel wire pulling to achieve multi-directional controllable bending, it can rebound and reset after release. Compared with stainless steel snake bones, it has a much stronger resistance to repeated bending and a longer lifespan.

What is it for?

Simply put: Create a flexible and steerable framework for slender probes/instruments

1. Internally, steel wires can be used to control cables, while externally, steel wires can be pulled to achieve multi angle swinging and turning of the head;

2. Maintain a hollow channel during bending to facilitate the passage of lenses, optical fibers, surgical instruments, and flushing media;

3. It should be able to flexibly turn and drill into narrow and complex cavities, while maintaining a certain degree of rigidity, transmitting thrust, and not easily bending or damaging.

>Stainless steel snake bones are also common; Advantages of nickel titanium version: super elasticity, no permanent deformation when bent at large angles, high fatigue life, mostly used in high-end medical and industrial endoscopes.

Main application scenarios

🔬 Medical (maximum use)

1. Soft endoscope: a curved head skeleton for gastroscopy, colonoscopy, cholangioscopy, ureteroscopy, and bronchoscopy, which can flexibly turn and observe, biopsy, and perform surgery within the human body cavity;

2. Minimally invasive surgical robotic instruments: single hole endoscopic robotic instrument with a snake shaped arm at the end, and a flexible wrist for robotic surgical instruments;

3. Controllable interventional catheter instruments: a rotatable interventional instrument sheath used for minimally invasive instruments in urology, digestion, and otolaryngology;

>  ⚠️ Snake bone tubes are generally components of medical instruments, not permanent implants left in the human body. They will be removed after surgery; Nickel titanium stent is the one implanted in the body.

🛠 Industrial testing field

1. High end industrial endoscope: the steering frame of the internal detection probe for engines, turbines, pipelines, and pressure vessels, which is inserted into narrow bends for photography and flaw detection;

2. Narrow space detection robot with flexible arm and special detection probe.

🤖 Special robots

Continuous flexible robot, snake like robot joint skeleton, and narrow space inspection robot execution arm.

Comparison with ordinary stainless steel snake bone tube

-Stainless steel snake bone: high hardness, low cost, prone to plastic deformation and fatigue fracture after repeated large angle bending;

-Nickel titanium snake bone: super elastic, rebound after bending, strong fatigue resistance, higher cost, mostly used in high-end medical and industrial equipment.

Huizhou Pengchengrui Technology Co., Ltd., as a source manufacturer of nickel titanium alloy, can customize and process nickel titanium alloy snake bone tubes, and independently research and produce the entire process from tube substrate to laser cutting and polishing. The product has excellent biocompatibility and corrosion resistance, meeting the needs of medical and high-end industrial testing, supporting non-standard specification development, flexible delivery, and assisting in the rapid implementation of medical minimally invasive equipment, flexible detection probes, and snake like robot projects.