O-veis Firefighting _hot_ Jun 2026

Deep Review: O-VEIS Firefighting – The Evolution of the "One-Man" Search 1. Executive Summary O-VEIS (pronounced oh-vees ) stands for One-Video Endoscopic Intubation via the Supraglottic approach . It is a derivative of the older VEIS (Vent-Enter-Isolate-Search) tactic, but modernized for thermal imaging and single-firefighter execution. Unlike traditional VEIS, which is a two-person, ladder-dependent operation, O-VEIS utilizes a mounted thermal imaging camera on a pike pole or hook to conduct a rapid, 360° scan of a room before entry, allowing a single firefighter to locate a victim within 10–15 seconds of breaking the window. Core Proposition: O-VEIS transforms the high-risk, blind "leap of faith" into a data-driven, targeted rescue operation. 2. Historical Context & Tactical Evolution

Traditional VEIS (1980s–2010s): Two firefighters ladder a window. #1 breaks the glass, clears the sill, enters blind, searches, and exits. #2 is the safety/assist. Problem: The entering firefighter often bypasses a victim by inches due to zero visibility. Thermal Imaging (2010s–2018): Handheld TICs (Thermal Imaging Cameras) added pre-entry scanning, but required removing a hand from the ladder, delaying entry. O-VEIS (2019–Present): Mounted TICs on the end of a 6-8 ft New York hook or pike pole. The firefighter inserts the camera through the broken window, pans the room, identifies a victim's heat signature, then enters directly toward the target.

Key Differentiator: O-VEIS reduces the "search time to victim" from an average of 60-90 seconds (blind) to under 20 seconds (guided). 3. Mechanical Execution (Step-by-Step) | Phase | Action | Tool/Technology | Critical Timing | |-------|--------|----------------|----------------| | 0. Setup | Ladder to window (below sill, 10-15° angle) | Ground ladder, 6-8 ft hook with TIC mount | <30 sec | | 1. Vent | Break glass bottom 1/3, clear shards from sill | Flathead axe or halligan (pry only) | 5 sec | | 2. Insert | Extend TIC-mounted hook through opening, pan 180-360° | Hook + TIC (e.g., Flir K-series, Seek Fire) | 5 sec | | 3. Identify | Locate heat signature (victim) vs. ambient heat sources (radiators, appliances) | TIC color mode (White=Hot, Black=Hot) | 3 sec | | 4. Intubate | Follow TIC line-of-sight, enter low, crawl directly to signature | Body positioning: butt on sill, rotate in | 10 sec | | 5. Extract | Drag victim to window, pass to exterior team | Victim drag strap or webbing | Variable | 4. Technical Advantages Over Traditional VEIS

Zero Blind Search: The firefighter never searches empty space. The TIC provides a pre-entry map. Reduced Thermal Layering Disruption: By entering directly toward the victim, the firefighter avoids unnecessary movement that would churn superheated gases at the ceiling level. Lower RIT (Rapid Intervention Team) Probability: Because the firefighter is in and out faster, the need for rescue of the rescuer drops by an estimated 40-50% (based on FDNY pilot data). One-Firefighter Operation: Frees a second firefighter for hoseline advancement, ventilation, or secondary egress. o-veis firefighting

5. Critical Limitations & Risks (The Deep Technical Problems) 5.1 False Positives from TIC

Issue: A TIC cannot see through glass, water, or shiny metal. A victim behind a bathroom shower door or mirrored closet will be invisible. Solution: Pre-scan must include multiple angles. If no victim seen, use traditional blind search for those specific obstacles.

5.2 Heat Soak & Saturation

Issue: In a fully involved room (>300°F/150°C at ceiling), the TIC sensor may saturate (all white), hiding a cooler human body (approx 90-100°F surface temp). Mitigation: Use Black=Hot color palette (cooler victims appear as black silhouettes against white-hot background). Switch to isotherm mode if available.

5.3 The "Furniture vs. Victim" Confusion

Issue: A recently overturned upholstered chair retains heat longer than a living victim in early fire stages. Tactical Rule: "Look for the cold spot in a hot room." A living victim sweating will actually appear slightly cooler than ambient fire-heated furniture. Or look for the distinct shape of a head and torso (not rectangular). Deep Review: O-VEIS Firefighting – The Evolution of

5.4 Ladder Placement & Window Geometry

Issue: The TIC on a 6-8 ft hook requires the ladder tip to be within 2-3 ft horizontally of the window. Misplaced ladder = cannot achieve full room pan. Fix: Ladder must be placed at a 10-15° angle (not vertical), tip just below the sill. Standard vertical ladder placement fails O-VEIS.