Intelligent Photonics

Invuity’s patented Intelligent Photonics® devices provide direct visualization of the surgical cavity enabling enhanced precision, efficiency and safety. Our Intelligent Photonics technology directs and shapes light into broad, uniform illumination. It converts traditional thermally hot, concentrated light output to thermally cool volumetric illumination throughout the entire surgical cavity.

Our Technology

Our technology is integrated into a family of proprietary optical waveguides coupled to a modified fiber optic cable and designed to work with standard xenon and LED light sources used in the operating room. The sophisticated devices integrate a solid-core optical grade polymer, total internal reflection of light waves, light mixing and a complex geometry of refractive microstructures and microlenses to provide direct intracavity illumination and visualization.

  • Enhanced illumination and visualization of the surgical area
  • Improved surgical precision during minimally invasive and minimal access procedures
  • Enhanced operating room efficiency
  • Reduced risks to patients, surgeons and operating room staff
  • Economic value to healthcare systems

Light Mixing

Our optical waveguides utilize various novel optical methods to mix light, or randomize its reflections, during the total internal reflection transmission process. The design and shape of the optical stem, or area of the waveguide that is between the input of the waveguide and the array of refractive microstructures or microlenses, enhance the mixing of light waves, while maintaining total internal reflection. Our optical waveguides utilize light mixing before extraction to significantly reduce glare and bright spots, leading to a more uniform illumination profile across the surgical target while remaining thermally cool.1

1. Data on file. LIT 10668 Eigr Technology Thermal and Insulation Characteristics Abstract.

The Science Behind Intelligent Photonics

Light Projection Comparison

Temperature (°C) Output Comparison

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“Invuity has effectively married two critical technologies and addressed a pressing clinical need of visualization. The PhotonSaber™ Y is one of the most significant technological advancements in orthopaedic surgery this year.”

Herrick J. Siegel, MD
Professor of Surgery and
Head of Orthopaedic Oncology
UAB Medical Center, Birmingham, AL

“I operate with greater efficiency and surgical precision because I can direct the light where I need it – the light follows me instead of me following the light. I have reduced my surgical time by an average of 15% and experience less operative blood loss. This challenging surgical approach is now easier, quicker and safer when using the Saber with Yankauer – it makes my life easier.”

Hamid Redjal, MD
Orthopedics Surgeon
Joint Replacement Surgery with Specialty in Anterior Approach Hip Replacement and Pelvic/Acetabular Trauma Surgery
Southeast Hospital and St. Francis Medical Center
Cape Girardeau, MO

“Invuity’s Saber handheld illuminator with Frazier suction enables me to more efficiently achieve rapid hemostasis during cervical and lumbar spine surgery. I’m able to direct its light precisely where it is needed to quickly locate and control bleeders especially in far lateral recesses and deep surgical cavities. Since using the Eigr Saber I have seen a significant decrease in blood loss due to its superior illumination within the incision.”

Eric J. Woodard, MD
Chief, Neurosurgery at New England Baptist Hospital
Formerly Chief, Division of Spinal Surgery
Brigham and Women's Hospital
Assistant Professor of Surgery, Harvard Medical School