Office of Technology Transfer – University of Michigan

Moisture imaging of wound and burn depth for clinical assessment

Technology #6458

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Benjamin Levi
Managed By
Janani Ramaswamy
Licensing Specialist, Medical Deviceses 734-763-9081
Patent Protection
US Patent Pending
US Patent Pending

Physicians and surgeons treating wounds and burns perform debridements simply according to how the insult looks. There is no objective or well-accepted method to assess wound depth or other characteristics. Punch biopsies may be used to evaluate wounds, but the procedure may impair restorative processes and cause infection. A single biopsy also does not allow for wound observation at multiple time-points during recovery. While recent technologies (Laser Doppler Imaging, Near Infrared Spectroscopy, and Confocal Laser Imaging Microscopy) have enabled non-invasive identification of dead, damaged, or infected tissue, these procedures are expensive, time-consuming, and bulky. The novel moisture-detecting camera allows for fast and efficient wound analysis. The portable device enables bedside or intra-operative assessment of wound depth and readiness for reconstruction, improving potential for healing.


The invention consists of a fast imaging camera that measures wound depth according to moisture level. Wound depth calculations are used for determining whether further debridement is necessary or if the wound is ready for graft coverage. Real-time analysis of wound healing enhances the efficiency of clinician diagnosis. This enables improved management of wounds, guiding treatment options and reducing hospitalization time.


  • Clinical assessment of:
    • Pressure ulcers.
    • Diabetic ulcers.
    • Burn wounds.
    • Surgical wounds.
    • Traumatic wounds.
    • Surgical site infections.


  • Non-invasive.
  • Inexpensive.
  • Portable.
  • Re-assessment of wound over time.