Full Gauge Size System & Scene Matching — Solve Specification Mismatch And Poor Surgical Adaptability
Aug 07, 2026
1. Industry Pain Points Many medical institutions have unreasonable brachytherapy needle selection habits, using single specification needles for all types of tumor surgeries. Blind application of thick-gauge needles for superficial delicate tumors causes excessive trauma, large wounds and prolonged postoperative recovery. Using thin-gauge needles for deep and sclerotic malignant tumors leads to insufficient rigidity, easy bending and deformation during puncture, resulting in channel deviation and failed seed implantation. The lack of systematic gauge classification and targeted matching standards causes poor adaptability between instruments and lesions, unstable surgical quality and inconsistent cancer treatment efficacy.
2. Working Principle The gauge specification of Mick-type brachytherapy needles determines the core mechanical properties of needle diameter, rigidity, toughness and minimal invasiveness. G value is inversely proportional to needle thickness: smaller G value represents thicker tube wall, higher rigidity and stronger compression resistance, suitable for high-resistance hard tissue penetration; larger G value represents finer needle body, smaller trauma and higher flexibility, suitable for superficial and sensitive area tumor surgery. Full-size gradient specifications cover all clinical tissue density and depth scenarios, realizing scientific matching of needle mechanical performance and tumor lesion characteristics, ensuring puncture stability and minimal surgical trauma.
3. Product Classification The full series covers 8G, 11G, 13G, 14G, 15G, 16G, 18G and 20G standard specifications, divided into three clinical categories. Heavy-duty thick needles (8G/11G) feature ultra-high rigidity and deformation resistance, suitable for bone tumors, sclerotic malignant tumors and deep abdominal tumor puncture. Universal standard needles (13G/14G) balance rigidity and minimal invasion, covering most common solid tumors such as lung cancer, liver cancer and breast cancer. Fine minimally invasive needles (15G–20G) are ultra-fine and low-trauma, specially used for brain tumors, cervical tumors and superficial micro-tumor high-precision implantation.
4. Practical Operation Standards Formulate specification matching schemes based on preoperative CT/MRI tumor assessment and tissue hardness. Hard deep tumors select 8G/11G heavy-duty needles to ensure puncture stability. Conventional intermediate tumors adopt 13G/14G universal needles to balance safety and efficiency. Superficial sensitive lesions choose 15G–20G fine needles to reduce trauma. For special irregular lesions, adopt customized non-standard sizes to realize one-to-one scenario matching.
5. Industry Application Experience Full-gradient gauge system completely solves the industry pain point of model mismatch. Standardized classified selection effectively avoids needle body deformation and excessive surgical trauma, significantly improving one-time puncture success rate and surgical safety. Customized size services make up for standard specification limitations, perfectly adapting to special complex tumor surgical paths. Standardized specification matching greatly unifies clinical operation standards and stabilizes tumor treatment efficacy.
6. Summary Blind specification selection and single model configuration restrict the refinement of cancer brachytherapy. Mick-type brachytherapy needles build a complete full-gauge gradient system covering heavy-duty, universal and minimally invasive types, adapting to all conventional tumor scenarios. Combined with personalized customized size capabilities, it realizes full-scene precise matching, standardizing clinical selection procedures and improving the refined treatment level of tumor interstitial radiotherapy.
7. Future Prospect Future manufacturers will refine gauge gradient and develop variable-diameter adaptive needles adapting to multi-layer tissue resistance. Combined with AI tumor assessment systems, intelligent automatic specification matching will be realized, further standardizing clinical operations and promoting high-precision individualized cancer brachytherapy.







