Handle Connector for Electrosurgical Electrodes

Product Specifications

Technical details and manufacturing context for Handle Connector

Definition

The Handle Connector is a critical component in high-frequency electrosurgical electrodes, serving as the primary interface between the surgeon's handle and the electrode's main body. It ensures secure mechanical attachment while providing reliable electrical conductivity for the transmission of high-frequency current from the generator to the surgical site. The connector must maintain electrical integrity under sterilization conditions and repeated use. Constructed from medical-grade stainless steel, high-temperature resistant polymers, and gold-plated copper contacts, it is designed for durability and consistent performance. Key parameters include a rated voltage of 3.5–5.5 V DC, rated current of 0.5–2.0 A, contact resistance of ≤0.05 Ω, insulation resistance of ≥1000 MΩ at 500 V DC, dielectric withstand voltage of 1500 V AC for 1 minute, operating temperature range of -40 to 85 °C, mating cycles of ≥5000, insertion and extraction forces of 5–20 N, housing material PEEK (ASTM D6262), contact material Au-plated brass (ASTM B488), ingress protection IP54 (IEC 60529), and weight ≤15 g. These specifications are reference ranges for directory purposes and must be verified with the legal manufacturer for specific models and applications. The connector is designed for use in medical devices and must be selected based on the specific requirements of the electrosurgical system. Always confirm model-specific values and standards with the supplier or manufacturer before procurement or use.

Working Principle

The handle connector functions by establishing both mechanical and electrical connections. Mechanically, it uses precision fittings (such as bayonet, screw, or snap mechanisms) to securely attach the handle to the electrode body. Electrically, it contains conductive elements (typically metal contacts or pins) that complete the circuit between the handle's wiring and the electrode's internal conductors, allowing high-frequency current to pass through with minimal resistance and impedance. The connector's design ensures a stable connection that can withstand repeated mating cycles and sterilization processes.

Common Materials

Medical-grade stainless steel, High-temperature resistant polymers, Gold-plated copper contacts

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Voltage	3.5–5.5 V DC	Operating voltage for the electrode connection
Rated Current	0.5–2.0 A	Current carrying capacity for electrosurgical signals
Contact Resistance	≤0.05 Ω	Maximum resistance to ensure signal integrity
Insulation Resistance	≥1000 MΩ	At 500 V DC between contacts and housing
Dielectric Withstand Voltage	1500 V AC	Withstand for 1 minute without breakdown
Operating Temperature	-40–85 °C	Full performance over this range
Mating Cycles	≥5000 cycles	Minimum mechanical endurance
Insertion Force	5–20 N	Force required to fully mate the connector
Extraction Force	5–20 N	Force required to unmate the connector
Housing Material	PEEK	High-temperature thermoplasticASTM D6262
Contact Material	Au-plated brass	Gold plating for low resistanceASTM B488
Ingress Protection	IP54	Dust-protected and splash-proofIEC 60529
Weight	≤15 g	Lightweight for handheld instruments

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Contact Pins Part
Provide electrical conductivity between handle and electrode

Material: Gold-plated copper alloy
Insulation Sleeve Part
Prevent electrical short circuits and provide mechanical protection

Material: Medical-grade silicone or high-temperature polymer
Locking Mechanism
Secure mechanical connection between handle and electrode body

Material: Stainless steel or engineering plastic
Strain Relief Part
Prevent cable damage at connection point

Material: Flexible polymer

Manufacturers of Handle Connector

Manufacturer profiles associated with Handle Connector.

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Frequently Asked Questions

What is the primary function of the Handle Connector?

The Handle Connector serves as the interface between the surgeon's handle and the electrode's main body, providing both mechanical attachment and electrical conductivity for high-frequency current transmission.

What materials are used in the Handle Connector?

The connector uses medical-grade stainless steel, high-temperature resistant polymers, and gold-plated copper contacts. The housing is made of PEEK (ASTM D6262) and contacts are Au-plated brass (ASTM B488).

What are the key electrical parameters?

Rated voltage is 3.5–5.5 V DC, rated current is 0.5–2.0 A, contact resistance is ≤0.05 Ω, insulation resistance is ≥1000 MΩ at 500 V DC, and dielectric withstand voltage is 1500 V AC for 1 minute.

How should I verify the specifications for my application?

The listed parameters are reference ranges. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement or use.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 5 bar
other spec:	Electrical insulation resistance: >100 MΩ at 500V DC
temperature:	-20°C to 150°C

Handle Connector

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