Biomedical-Grade Helical Compression Spring for Surgical Instruments with Precision Force Control and Sterility Assurance
Biomedical-Grade Helical Compression Spring for Surgical Instruments with Precision Force Control and Sterility Assurance
Basic Properties
Place of Origin:
Sihong, China
Brand Name:
Sunzo
Certification:
CE/IATF16949/45001/14001/9001
Trading Properties
Minimum Order Quantity:
Negotiable
Price:
Negotiable
Payment Terms:
Negotiable
Product Summary
Biomedical-grade helical compression springs for surgical instruments. Made from 316LVM stainless steel or titanium, ensuring biocompatibility & 2000+ autoclave cycles. ISO 13485 certified with micron-level force control for precision in life-critical applications.
Product Custom Attributes
Highlight
helical compression spring 20mm
,1.5mm compression spring 20mm
,1.5mm helical compression spring
Material:
316LVM Stainless Steel, Ti-6Al-4V ELI, Nitinol (NiTi-55)
Surface Finish:
Ra < 0.2μm
Autoclave Cycles:
2000+
Sterilization Temperature:
134°C
Sterilization Duration:
30 Minutes
Weight Reduction:
40%
Corrosion Resistance:
Excellent In Bodily Fluids
Temperature Range:
-40°C To 121°C
Wire Diameter:
0.1mm To 2.0mm
Coil OD:
1.5mm
Working Stroke:
0.3mm-10mm
Force Linearity:
±2%
Precision Welding:
0.01mm
AOI Resolution:
5μm
Fatigue Life:
10⁶ Cycles
Load Capacity:
70% Rated Load
Positional Accuracy:
0.02mm
Cycle Testing:
5000 Cycles
Force Control:
±0.05N
Cleanroom Class:
ISO 8 Class 100,000
Product Description
Detailed Specifications & Features
Helical Compression Spring for Medical Surgical Instruments
Engineered specifically for medical surgical instruments, our helical compression springs deliver biomedical-grade precision and sterility assurance for life-critical applications. These springs provide consistent performance in instruments such as laparoscopic graspers, endoscopic tools, and surgical staplers, ensuring micron-level force control (±0.05N) and repeatable actuation essential for delicate tissue manipulation and precise mechanical feedback.
Medical-Grade Materials
316LVM Stainless Steel (ASTM F138)
Polished to Ra < 0.2μm surface finish to prevent bacterial adhesion, withstands 2000+ autoclave cycles (134°C, 30 minutes) without degradation
Titanium Alloy (Ti-6Al-4V ELI, ASTM F136)
40% weight reduction over steel with equivalent strength, excellent corrosion resistance in bodily fluids
Nitinol (NiTi-55)
Shape memory applications, maintains functional integrity across -40°C to 121°C sterilization ranges
Precision Design Specifications
| Parameter | Specification Range |
|---|---|
| Wire Diameter | 0.1mm to 2.0mm |
| Coil Outer Diameter | As small as 1.5mm |
| Working Stroke | 0.3mm to 10mm |
| Force Linearity | Maintained within ±2% across deflection range |
Advanced Manufacturing Process
- Cleanroom production (ISO 8 Class 100,000) with automated processes to eliminate human contact
- Laser welding with 0.01mm precision for end loops, ensuring no micro-cracks or burrs
- Electropolishing to remove surface impurities and create passive oxide layer (Cr₂O₃)
- Automated optical inspection (AOI) with 5μm resolution to detect sub-micron defects
Quality & Performance Validation
- ISO 10993-5 biocompatibility testing (cytotoxicity, sensitization, irritation)
- ISO 13485 quality management system certification
- FDA 510(k) premarket notification support for instrument integration
- Fatigue life testing exceeding 10⁶ cycles at 70% rated load (per ISO 13920 Class 0)
Proven Field Performance: Leading surgical device manufacturers report 92% reduction in instrument failure rates, 0.02mm positional accuracy in micro-dissection procedures, and 100% pass rate in 5000-cycle sterilization testing.
Custom Solutions Available
We offer specialized designs including variable-rate springs for tactile feedback, ultra-fine wire springs for micro-surgery, and anti-migration designs for implantable devices. All springs include full traceability documentation with batch material certificates, process records, and sterility validation reports.
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