Healthcare Professionals

Enterra II Neurostimulator

Gastric Electrical Stimulation


The EnterraTM II gastric neurostimulator is a programmable device that generates mild electrical pulses for gastric electrical stimulation to treat chronic, intractable nausea and vomiting due to gastroparesis.*

This small, battery-powered gastric neurostimulator is implanted beneath the skin in the lower abdominal region. The neurostimulator generates controlled electrical pulses delivered by leads to the antrum portion of the stomach muscle wall. After implant, the clinician optimizes therapy for the patient with a clinician programmer.


The Medtronic Enterra Therapy System for gastric electrical stimulation (GES) is indicated for use in the treatment of chronic, intractable (drug refractory) nausea and vomiting secondary to gastroparesis of diabetic or idiopathic etiology in patients aged 18 to 70 years.

Product Details


  • The updated software for clinician programming of the device has clear, easily followed steps.
  • Enterra II has no magnetic activation switch, reducing the possibility that electromagnetic interference unintentionally turns off therapy.
  • An indicator alerts the clinician that the battery will soon need to be replaced for continued therapy.
  • For the implant procedure, a new torque wrench ensures a secure connection between the device and leads.


Enterra II has new programming software with clear, streamlined steps. For programming demonstrations and training, contact your Medtronic representative.


Enterra II contains an accurate End-of-Service battery capacity indicator that allows use as long as possible without risking loss of therapy from unanticipated battery depletion. The indicator also allows the clinician and patient to know when it is time to schedule device replacement for continued therapy.

Estimated battery life is 5 to 10 years depending on how strong the stimulation must be to manage the patient's condition.1 Tables for estimating and monitoring battery longevity are in the Enterra II Neurostimulator Model 37800 Implant Manual.


New design features make Enterra II more compatible than Enterra model 3116 with electromagnetic interference.

  • Enterra II has no magnetic activation switch (reed switch), which reduces the chance that electromagnetic interference will turn therapy off.
  • During programming, Enterra II communicates with the clinician programming device using telemetry technology that is less likely to be disrupted by nearby electromagnetic devices.

Information about electromagnetic interference is in the Medtronic Enterra Therapy Information for Prescribers.

Compatible Products

  • Unipolar Intramuscular Lead Model 4351
  • N’VisionTM Clinician Programmer Model 8840


Access prescriber, implant, MRI, and other manuals on the Medtronic Manual Library. Search by the product name (Enterra) or model number (37800). You may also call 800-961-9055 for a copy of a manual.


Model 37800
Battery Type Non-rechargeable
Weight 45 g (1.6 oz)
Height 55mm (2.2 in)
Length 60mm (2.4 in)

Humanitarian Device: The effectiveness of this device for this use has not been demonstrated.


Medtronic data on file.