INDUSTRY COMPONENT

Insulated Shaft

Insulated shaft for high-frequency electrosurgical electrodes providing electrical isolation and structural support.

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Component Specifications

Definition
A precision-engineered cylindrical component designed for high-frequency electrosurgical electrodes that provides both structural integrity and electrical insulation between the active electrode tip and the surgical instrument handle. It prevents current leakage and ensures patient safety during electrosurgical procedures by maintaining dielectric isolation while withstanding mechanical stresses during surgical manipulation.
Working Principle
The insulated shaft operates by creating a dielectric barrier between the conductive electrode tip and the instrument body, preventing unintended electrical current flow to non-target tissues. It maintains the high-frequency current path exclusively through the active electrode while providing mechanical stability for precise surgical control.
Materials
Medical-grade ceramic (Alumina 99.5% or Zirconia), PEEK (Polyether ether ketone), or PTFE (Polytetrafluoroethylene) with dielectric strength >15 kV/mm, biocompatibility per ISO 10993, and autoclavable properties.
Technical Parameters
  • Length 150-300 mm
  • Diameter 3-6 mm
  • Surface Roughness Ra < 0.8 μm
  • Dielectric Strength >15 kV
  • Insulation Resistance >1000 MΩ
  • Operating Temperature -20°C to 200°C
Standards
ISO 13485, ISO 10993, IEC 60601-2-2

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Insulated Shaft.

electrosurgical insulated shaft medical device insulation surgical electrode component dielectric medical component high-frequency insulation Insulated Shaft Insulated Shaft in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

High-Frequency Electrosurgical Electrode

Disposable or reusable conductive tip for precise tissue cutting and coagulation in electrosurgery.

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Engineering Analysis

Risks & Mitigation
  • Dielectric breakdown under high voltage
  • Mechanical fracture during surgical use
  • Thermal degradation during sterilization
  • Surface contamination affecting insulation
FMEA Triads
Trigger: Material impurities or manufacturing defects
Failure: Dielectric breakdown causing current leakage
Mitigation: Implement 100% high-voltage testing and material certification per ISO 13485
Trigger: Excessive mechanical stress during surgery
Failure: Shaft fracture compromising procedure safety
Mitigation: Design with safety factor >3 and conduct mechanical fatigue testing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm diameter, ±0.1 mm length
Test Method
High-potential testing at 1.5x rated voltage, insulation resistance measurement at 500V DC, mechanical load testing per ISO 10555

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of an insulated shaft in electrosurgical electrodes?

The insulated shaft provides electrical isolation between the active electrode and the surgical instrument handle, preventing current leakage to non-target tissues and ensuring patient safety during high-frequency electrosurgical procedures.

What materials are commonly used for manufacturing insulated shafts?

Common materials include medical-grade ceramics (Alumina, Zirconia), PEEK, and PTFE, selected for their high dielectric strength, biocompatibility, and resistance to sterilization processes.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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Insulated Handle Insulating Panel