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Shenzhen Shomea Hardware Products Co.,Ltd
Shenzhen Shomea Hardware Products Co.,Ltd is an OEM manufacturer focus on metal tube and Telescopic pole processing. All of tube or pole products is customized according to customers' drawings or
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​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance

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​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance

Supply Ability : 100000pcs/ month

Material : Stainless Steel, Nitinol, brass, copper

Model Number : OEM

LOGO : can be customized

Price : 15USD

Tube wall thickness : 0.05-3mm

Tolerance : OD/ID±0.02mm L±0.5mm

MOQ : 5pcs

Delivery Time : 5-25 Days

delivery time : 5-20days or according to quantity

Payment Terms : L/C,D/A,D/P,T/T,Western Union

Tube Outer Diameter : 0.25-15mm

Samples : Usually provid 5pcs for test before mass production

Certification : ISO13485

Place of Origin : China

Brand Name : Shomea

Packaging Details : polybag, carton, wooden case or according to your request

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​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance

Products Name ​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance
Material Stainless Steel, Brass, Aluminum, brass, copper ,etc
Surface treatment Sandblasting, polishing, knurling, laser marking, etc
Tube Outer Diameter 0.25-15mm
Tube wall Thickness 0.05-3mm
meta Base Male and Female thread
Tolerance OD/ID±0.02mm L±0.05mm or According to Drawing
Size 3G-32G or Customized
LOGO Can be customized according to your drawing
Samples Usually provid 5-10pcs samples for testing before mass production
Delivery Time usually 5-25days or according to quantity

​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance

​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance

Product Highlights:


1. Material Selection:​ The push rod body is made of Nitinol shape memory alloy, endowing it with excellent superelasticity​ and shape recovery capability, ensuring structural stability even under complex stress conditions.
2. Structural Design:​ A precision spring structure​ is integrated into the middle section of the rod, enabling axial cushioning​ and dynamic rebound, effectively absorbing reverse impact during puncture to enhance operational smoothness.
3. Dimensional Accuracy:​ The needle diameter and spring segment length support micron-level tolerance control, ensuring high-precision fit​ with instruments such as coaxial needles / biopsy needles, preventing looseness or jamming.
4. Surface Treatment:​ The surface undergoes electrolytic polishing​ or passivation, delivering smooth low-friction​ properties to reduce tissue trauma risk, while enhancing corrosion resistance​ and biocompatibility.
5. Functional Adaptation:​ The end is fitted with a standardized metal interface​ (e.g., Luer Lock), supporting seamless docking with image-guided devices​ or manual/electrical drive units, meeting the needs of minimally invasive surgery​ and precise sampling​ scenarios.

Frequently Asked Questions:

Q1: What is the specific function of the spring structure inside the Nitinol push rod?​
A1:​ The built-in precision spring structure​ provides axial cushioning and dynamic rebound​ during puncture, effectively absorbing reverse impact to improve operational smoothness and reduce tissue trauma.
Q2: How does the superelastic property perform in actual operation?​
A2:​ The superelastic property​ allows the push rod to maintain thrust transmission even in a bent state, automatically returning to its original shape after force is released, ideal for precise delivery along tortuous paths.
Q3: Can this push rod be used with common biopsy needles on the market?​
A3:​ Yes. The end features a standardized metal interface, compatible with mainstream coaxial needle and biopsy needle systems, ensuring secure connection without additional adapters.
Q4: Has the push rod surface undergone special treatment? Will it increase tissue friction?​
A4:​ The surface is electropolished, creating a smooth low-friction coating​ that significantly reduces tissue adhesion and frictional resistance, protecting sample integrity.
Q5: Can the rod length and spring stiffness be customized for specific surgical needs?​
A5:​ Yes. Total rod length, spring segment length, and elasticity coefficient​ are customizable to meet operational requirements for different puncture depths and tissue hardness levels.

For Tooling Cost, We need fully amount payment, For goods payment, if amount less than 1500USD, We need fully payment ,If more than 1500USD, We can accept 50% as deposit, the balance should be pay before ship all goods.


China ​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance factory

​ Customized Nitinol Push Rod with Spring Assembly and Superelastic Performance Images

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