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Manufacturer: Senzime

TetraGraph® Quantitative Neuromuscular Transmission Monitor

TetraGraph® Quantitative Neuromuscular Transmission Monitor is easy to use and features gold standard EMG technology for accurate measurements to bring confidence to the anesthesiology practice. The device has a quick start up time and does not require calibration. The arm can be tucked under surgical drape and can thus be used in all types of procedures, including cardiac, neuro, laparoscopic, robotic and bariatric surgeries. TetraGraph® can be used from start to finish during the surgical procedure. The monitor enables objective assessment and facilitates titration of medication dosage to help clinicians determine when the patient’s neuromuscular block is sufficiently reversed to allow adequate spontaneous breathing. TetraGraph® is small and portable and can travel with the patient to different settings like OR, PACU or ICU.

EMG Technology

Tetragraph® undertakes this function by periodically delivering electrical stimulation to the peripheral nerve and directly measuring the evoked electromyographic (EMG) response of the muscles (compound muscle action potential, CMAP). This provides a precise and automatic measurement of muscle response to a stimulus.

TetraGraph® Operating Modes

TOF mode, is the TetraGraph®’s main mode of operation. A sequence of four stimuli, at a frequency of 2 Hz, referred to as Train-of-Four (TOF) is delivered to the peripheral nerve and the Train-of-Four Ratio (TOFR, or the ratio of the amplitude of the fourth twitch T4, to that of the first twitch, T1) and the TOF Count (TOFC, or the number of discernable twitches) of the evoked EMG responses are calculated and displayed. TOF stimulation is used to assess the depth of neuromuscular blockade and gauge the degree of recovery after reversal. Other operating modes are Post-Tetanic Count (PTC), which is used to determine NMBA management during surgeries that require deep block, and Single Twitch, which is used to deliver a single stimulus and display a single muscle response in millivolt (mV).

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TetraGraph® Quantitative Neuromuscular Transmission Monitor & Accessories

Prod. NoUnitPart Name
LISEN20011/EachTetraGraph® Quantitative NMT Monitor – Includes TetraGraph® Monitor, TetraCord (9’ long), PowerCord (10’ long), USB Block and Adapter & Instructions for Use Manual
LISEN20071/EachTetraGraph® Philips Interface Cable
LISEN21011/EachTetraGraph® Pole Clamp Kit
LISEN22011/EachUSB Power Supply Adapter

TetraSens Sensor

Prod. NoUnitPart Name
LISEN200220/BoxTetraSens Sensor

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