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Trigno™ Spring Contact Adapter2019-07-23T11:24:02-04:00

Trigno Spring Contact

For indwelling EMG recording

The Trigno™ Spring Contact Adapter gives users the ability to collect indwelling, fine wire EMG through the robust Trigno™ system. Delsys makes no assertions or recommendations on the type of recording electrode to use, or the method of its application. This responsibility befalls the electrode manufacturer, the client performing the study and the Institutional Review Board overseeing the study.

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Trigno Spring Contact Adapter

Spring Contacts

Custom connectors

Up to 850 Hz bandwidth

Up to 40 m range


User’s Guide

Sensor Channels

Analog Channels

Reference Type
Dual on-board stabilizing reference

Inter-Electrode Spacing

Size (Body)
27 x 46 x 13 mm

Size (Head)
23 x 30 x 7 mm

25 g

Operating Range
40 m in RF mode
Unlimited range w/ mobile device in Bluetooth mode

Wireless Protocol
-2.400-2.483 GHz ISM Band, Proprietary RF Protocol
-BLE V4.2

EMG Sampling Rate (Max)
4370 Hz

Accelerometer Sampling Rate (Max)
370 Hz

Gyroscope Sampling Rate (Max)
370 Hz

Orientation Sampling Rate (Max)
222 Hz

Sensor Resolution
16 bits

Sensor Baseline Noise (typical)
750 nV

Sensor Input Range
11 mV / 22 mV rti

<-80 dB

Sensor Bandwidth
20 – 450 Hz / 10 – 2000 Hz

Battery Life
4 – 8 hours

Recharge Time (typical)
2.5 hours

Inter-Sensor Latency
< 1 sampling period

Digital Output Delay

EMG Analog Output Delay
48 ms Fixed

ACC/Gyro Analog Output Delay
96 ms Fixed

Real-Time Signal Filter
-Butterworth bandpass (40/80 dB/dec)
-RMS Envelope Calculation (100 ms window)

Real-Time IMU Orientation Filter
Quaternions or RPY (selectable)

Medical Grade Polycarbonate

Seal and Protection
UV-sealed to prevent moisture from entering the sensor & to enhance patient safety

Protected by one or more of the following Patents 6480731, 6238338, 6440067, 9351559, 8971983, EP1070479