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The Checkpoint Stimulator & Locator

Offering the simplicity of a hand-held device with the advanced stimulation parameters provided by complex console-based systems

Features of the Checkpoint Stimulator & Locator

The Next Generation in Neuroprotective Surgical Technology

Biphasic Waveform

Generation of biphasic waveform for safe and continuous nerve activation for as long as the stimulation probe is applied

LED Indicator Light

Provides continuous visual confirmation that stimulus is being delivered

Pulse Width Slide Control

Continuously variable intensity at each amplitude to fine-tune stimulus parameters

Selective Amplitude Switch

Adjust threshold stimulus desired for precise, highly localized individual nerve stimulation to wide and deep generalized nerve activation

Built-in Power Supply

Self-contained batteries eliminate the need for external electrical connection; no cables in the sterile field

Ergonomic, One-hand Design

Easy to use; puts all the controls in the surgeon’s hand

Advanced Electronic Circuitry

Performs continuous circuit and software checks insuring reliable stimulus parameters are delivered and maintained

Checkpoint Procedures

The Checkpoint Stimulator & Locator is Being Used in a Variety of Orthopaedic, Plastic, Reconstructive, Oncologic, Trauma and Nerve Repair Procedures:

Nerve Assessment: Hand, Plastic and Neurosurgery
  • Brachial Plexus Repair
  • Hemangioma
  • Muscle Graft
  • Muscle Transfer
  • Nerve Decompression
  • Nerve Exploration
  • Nerve Transfer
  • Neuroma-in-continuity
  • ORIF Proximal Humerus
  • Removal of Hardware
  • Revision Cubital Tunnel
  • Revision Elbow
  • Schwannoma Tumor
  • Tendon Repair
  • Tendon Transfer
  • Trauma Reconstruction
Orthopedic Upper Extremity
  • Biceps Tendon Repair
  • Latarjet Shoulder Reconstruction
  • Latissimus Dorsi Tendon Transfer
  • ORIF Distal Humerus
  • ORIF Humerus
  • ORIF Non-Union
  • ORIF Proximal Ulna
  • Posterior Interosseous Nerve Decompression
  • Removal of Hardware
  • Reverse Shoulder Arthroplasty
  • Revision Cubital Tunnel
  • Revision Shoulder Procedures
  • Revision Total Elbow Arthroplasty
  • Revision Total Shoulder Arthroplasty
  • Suprascapular Nerve Release
  • Total Elbow Arthroplasty
  • Trauma Elbow Reconstruction
Head and Neck
  • Facial Nerve Assessment and Reanimation
  • Facial Nerve Exploration and Repair
  • Facial Trauma Reconstruction
  • Mandibular Tumor Resection
  • Revision Modified Neck Dissection
  • Revision Parotidectomy
  • Revision Thyroidectomy
  • Submandibular Gland Resection
  • Temporomandibular Joint Reconstruction
  • *20 mA stimulation setting found only on our flagship product provides stronger stimulation to activate nerve through dense or fibrotic tissue.
Orthopedic Trauma
  • Elbow Reconstruction
  • Humerus ORIF Non-Union
  • Muscle Tissue Viability Testing
  • Nerve Location & Assessment
  • Pelvic Reconstruction
  • Shoulder Reconstruction
Orthopedic Lower Extremity
  • Femoral Nerve Decompression
  • Hamstring Tendon Repair
  • Heterotopic Ossification
  • Pelvic Reconstruction
  • Peroneal Nerve Decompression
  • Posterolateral Corner Injury
  • Posterolateral Total Hip Revision
  • Removal of Hardware
  • Sciatic Nerve Decompression
  • Tibial Osteotomy and Deformity Correction
  • Total Hip Revision
  • Tumor Excision

What Surgeons are Saying about Checkpoint

Designed by a team of surgeons and biomedical engineers, the CHECKPOINT® Stimulator/ Locator helps surgeons make better “real time” intra-operative decisions with increased confidence.

* Dr. Hausman and Dr. Kozin are paid consultants and have a financial interest in Checkpoint Surgical

Training Videos

Reviewing the videos below will provide a good orientation to the use of Checkpoint in several surgical scenarios. For those of you unfamiliar with Checkpoint we would suggest you first watch “Checkpoint Commentary” by the internationally recognized Hand Surgeon Dr Scott Kozin before watching the “Checkpoint Comprehensive Instructional Video” to give you a better Surgeon-centric view of Checkpoint’s capabilities.

If you wish to watch the video elements separately we have broken the longer, comprehensive training video into
five smaller sections so you can watch just the portion of the material you are interested in reviewing.

1. General Instructions for Checkpoint use

2. Use of Checkpoint in Nerve Localization

3. Using Checkpoint for Intra-operative Assessment of Nerve Excitability

4. Using Checkpoint in Evaluation of Muscle Excitability

Usage Instructions for the Checkpoint Stimulator & Locator

Download Instructions for Use

Indications & Risk of the Checkpoint Stimulator & Locator

The Checkpoint® Stimulator is a single-use, sterile device intended to provide electrical stimulation of exposed motor nerve or muscle tissue to locate and identify nerves and to test nerve and muscle excitability.



Model: 9094

Surgical Nerve Stimulator/Locator

Patented (US) – Ⓓ (US)


The CHECKPOINT® Stimulator is a single-use, sterile device intended to provide electrical stimulation of exposed motor nerves or muscle tissue to locate and identify nerves and to test nerve and muscle excitability.


Do NOT use this Stimulator when paralyzing anesthetic agents are in effect, as an absent or inconsistent response to stimulation may result in inaccurate assessment of nerve and muscle function.

  • Do NOT apply stimulation across the patient’s chest because the introduction of electrical current into the chest may cause rhythm disturbances to the patient’s heart.
  • Do NOT leave Stimulator unattended in the surgical field.
  • Do NOT use Stimulator in the presence of flammable anesthetics.
  • Do NOT use this Stimulator in patients with implanted electronic devices. Stimulus current near such devices may cause them to malfunction.
  • Do NOT use in cerebrospinal fluid, brain, meninges, or spinal cord.
  • Do NOT use the Stimulator while delivering electrocautery. Electrocautery may interfere with or damage the Checkpoint Stimulator or cause injury.
  • Use of a tourniquet may reduce nerve and muscle excitability distal to the tourniquet. If a decrease in nerve or muscle response to stimulation is observed, it may be necessary to take down the tourniquet and allow time for re-perfusion before testing with Checkpoint.
  • Single use only. Once turned ON, the Stimulator will not turn OFF and will remain operational for approximately four (7) hours.
  • Use the Stimulator at 0.5mA initially and increase the amplitude as needed.
  • Do NOT bend the probe or apply excessive pressure where the probe enters the nose cone. Do NOT use the Checkpoint Stimulator as a dissecting tool or for any other purpose not specified in these Instructions for Use.
  • The needle return electrode may cause stimulation. Place the needle return electrode in an area away from excitable tissue and away from the stimulation area to avoid confusion.
  • Do NOT submerge or saturate the Checkpoint Stimulator with fluid.
  • The Stimulator may interfere with patient monitoring equipment in the operating room while stimulating.
  • Portable and mobile Radio Frequency (RF) communications equipment can interfere with the Stimulator. Do not use such equipment while delivering stimulation.
  • The Stimulator is not likely to cause any interference in nearby electronic equipment through Electromagnetic Interference (EMI) (complies with CISPR 11, Type B). For additional information on Electromagnetic Interference contact NDI Medical.
  • Be aware that using the device in the vicinity of certain nerves can have systemic effects (e.g. bradycardia, hypotension, laryngospasm).

The Checkpoint Stimulator is an adjunctive tool for locating nerves and testing nerve and muscle excitability. It is not intended to replace good surgical techniques in locating and dissecting tissue. The surgeon is ultimately responsible for identifying exposed motor nerves and tissue.

510(K) / CE Mark

View and download the 510(K) & CE Mark for the Checkpoint Stimulator

  • 510(K)
  • CE Mark
22901 Millcreek Blvd. Suite 360
Cleveland, Ohio 44122
United States