A concentric needle cable with a 5-pin DIN connector is a specialized cable used in electromyography (EMG) testing, particularly in needle EMG procedures. Needle EMG involves inserting a needle electrode directly into a muscle to record its electrical activity. The concentric needle cable is used to connect the needle electrode to the EMG machine for signal recording and analysis.

Here's what each component typically entails:

1. **Concentric Needle**: The cable is designed to connect to a concentric needle electrode, which consists of a fine needle surrounded by a concentric recording surface. This design allows for precise recording of muscle activity from within the muscle tissue.

2. **5-Pin DIN Connector**: The cable terminates in a 5-pin DIN connector, which is a type of electrical connector commonly used in medical devices such as EMG machines. The 5-pin DIN connector ensures a secure and reliable connection between the needle electrode and the EMG machine, facilitating the transmission of electrical signals for analysis.

Overall, the concentric needle cable with a 5-pin DIN connector is an essential component in needle EMG procedures, enabling the recording of intramuscular electrical activity with precision and accuracy.