Selection criteria and application considerations for acupuncture needle materials

The selection of materials for acupuncture needles should be based on clinical needs, safety and therapeutic effects. Different materials have their own characteristics, and the suitable scenarios should be determined through scientific assessment. The following is an explanation from three aspects: core standards, comparison of common materials, and purchasing suggestions.

I. Core Evaluation Dimensions for Material Selection

Biocompatibility: It is necessary to ensure that the material is non-allergenic and does not cause inflammation or allergic reactions when in contact with human tissues, especially for long-term needle retention treatment scenarios.

Physical properties: including strength (resistance to bending and fracture), corrosion resistance (to prevent rust contamination), and thermal/electrical conductivity, which affect the smoothness of needle insertion and treatment effect.

Cost performance: By comprehensively considering the frequency of use (one-time/reusable), treatment cost and patient acceptance, a balance is struck between performance and economy.

Ii. Practical Suggestions for Purchase

Qualification priority: Select products that meet medical device standards (such as ISO 13485) and require suppliers to provide material inspection reports.

On-demand adaptation: Copper needles are preferred for patients with cold symptoms. In scenarios with high infection risks (such as diabetic patients), silver needles or titanium alloy needles are recommended.

Reuse management: Stainless steel and titanium alloy needles must strictly follow the principle of "one person, one use, one disinfection" to prevent cross-infection. Disposable needles are prohibited from being reused.