Electrophysiology Equipment

High-voltage energy transfer + precise ablation control

Circon delivers high-voltage connector solutions benchmarked to top international brands—covering Pulsed Field Ablation (PFA), Radio-Frequency (RF) and Cryo ablation—helping EP device makers tackle high-voltage transfer, insulation and system stability.

Overview

As Pulsed Field Ablation (PFA) rapidly enters atrial fibrillation therapy via irreversible electroporation, kV-level pulses and μs-level discharge place extreme demands on connectors. We provide high-voltage solutions compliant with IEC 60664-4, dual-certified to ISO 13485 / ISO 9001, using insert molding and precision potting for long-term reliability.

Gallery

Market Drivers

PFA rapidly replaces traditional ablation—non-thermal, safer, faster
Precise control of kV-level (2000–5000VDC) and μs-level discharge
Insulation and arcing control per IEC 60664-4
Coexistence of PFA / RF / Cryo demands full-coverage connectivity

Technical Advantages

kV-level High-Voltage Transfer

Voltage range	1000V–5000VDC HV pulse
Insulation	Creepage/clearance per IEC 60664-4
Hipot test	5000VAC / 6000VDC
Material CTI	CTI > 600

μs-level Pulse Precision

Transient suppression	Low parasitic inductance design
Impedance matching	Custom 50Ω / 75Ω
Long-term reliability	High-hipot medical-grade material

Material & Process

Insert molding	Integrated structure, precise terminals
Precision potting	Improves insulation stability

Industry Challenges

Stable kV-level HV transfer and insulation control
μs-level transient suppression and impedance matching
Insert molding + potting for long-term reliability

Typical Applications

PFA / RF / Cryo ablation devices
Cardiac EP mapping systems
Ablation catheters and hand-held devices

Application Scenarios

PFA Pulsed Field Ablation

Host: B-series HV connector, 4–8 contacts
Catheter: plastic 2P series, 4–6 contacts
Mapping electrode: T-series micro connector

RF Ablation

Host output: B-series high-current (5A–10A)
Catheter: plastic 2P or K-series (power+temp+impedance)
Foot switch: K-series IP68 waterproof

Cryo Ablation / EP Mapping

Cryo: B-series special connector (low-temp, sealed)
Mapping catheter: T-series low-noise micro connector
Host interface: B-series high-density multi-channel

成功案例 / Success Cases

A PFA Ablation Device Maker

挑战 / Challenge：The catheter-to-host connector had to carry 4000V pulses with μs-level discharge while meeting IEC 60664-4 creepage requirements; traditional connectors suffered frequent arc breakdown.

方案 / Solution：Deployed a custom B-series HV connector (CTI > 600 insulation + precision potting), with optimized contact spacing and insulation barriers.

成果 / Result：Passed 5000VAC hipot, zero breakdown across 500 pulse cycles, enabling the customer's IEC 60601-1 type test clearance.

An EP Mapping System OEM

挑战 / Challenge：The mapping catheter micro-connector needed 8-channel low-noise transmission inside an φ8mm envelope, plus ETO sterilization compatibility.

方案 / Solution：Selected T-series micro connector with optimized spring design for < 5mΩ contact resistance, using ETO-compatible medical-grade materials.

成果 / Result：Signal noise < 10μV, zero performance degradation after 200 ETO cycles, now in volume supply.