What Is an ECG Trunk Cable?
An ECG trunk cable (also known as an ECG patient cable) is the main cable connecting ECG leadwires to a patient monitor or ECG diagnostic device.
- Serves as the central signal transmission channel, collecting electrical signals from multiple leadwires and delivering them to the monitoring system for real-time cardiac analysis.
- Unlike individual leadwires, it connects directly to the monitor on the machine side and branches out to multiple patient-side connectors.
ECG Trunk Cable vs ECG Leadwire – What’s the Difference?
Many engineers and procurement teams often confuse trunk cables with leadwires, with the core structural difference as follows:
- ECG trunk cable → Connects to the monitor
- ECG leadwire → Connects to the electrode and patient
In most reusable ECG systems, the signal transmission path is:
Monitor → Trunk Cable → Leadwires → Electrodes → Patient
Understanding this distinction is critical when designing or sourcing ECG monitoring components.
Key Technical Specifications of ECG Trunk Cables
When selecting an ECG trunk cable manufacturer, evaluate the following core parameters:
Lead Configuration
- 3-lead
- 5-lead
- 10-lead
- Custom configurations
Cable Jacket Materials
- TPU (soft, biocompatible, flexible)
- PVC (cost-effective)
- Silicone (high flexibility & medical-grade durability)
Shielding Structure
Proper shielding reduces signal interference and ensures stable ECG waveform accuracy.
Conductor Type
- Tinned copper
- Silver-plated copper
Signal stability depends heavily on conductor matching and resistance balance.
Reusable vs Disposable ECG Trunk Cable
Reusable ECG Trunk Cable
- Commonly used in hospitals and ICU monitoring systems
- Designed for repeated cleaning and disinfection
Disposable ECG Trunk Cable
Typically used in the following scenarios:
- Infection control environments
- Emergency settings
- Sleep study applications
Each type has its own advantages based on actual workflow and hygiene requirements.
Compatibility With Major Patient Monitor Brands
ECG trunk cables are designed to match specific monitor interfaces, with common compatible brands including:
- Philips
- GE Healthcare
- Mindray
- Nihon Kohden
- Schiller
- Dräger
Connector precision and pin configuration must match the device model to ensure correct signal transmission.
How to Choose the Right ECG Trunk Cable for Your System
When developing or sourcing ECG trunk cables, focus on the following points:
- Monitor interface compatibility
- Lead configuration requirements
- Shielding performance
- Regulatory compliance (ISO 13485 manufacturing)
OEM Project Special Requirements
OEM projects often need the following customized services:
- Custom length
- Private labeling
- Country-specific color coding (AHA / IEC)
Working with an experienced medical cable OEM partner reduces development risk and improves long-term supply stability.
Why Work With an OEM ECG Trunk Cable Manufacturer?
For medical device brands, reliability and signal accuracy are critical. Taking Shenzhen Jolly as an example, professional OEM manufacturers can provide the following support:
- Engineering-level customization
- Fast sample development (2–3 weeks)
- Flexible MOQ for pilot runs
- 100% electrical continuity testing
- ISO 13485 compliant manufacturing
Professional OEM manufacturers collaborate closely with global partners to deliver stable, high-performance ECG patient cable solutions for monitoring and diagnostic systems.
