🩸 IDEATHON: BLOOD CLOT DETECTION IN LIMBS

Using Ultrasound Transducer (UST) + Near-Infrared Spectroscopy (NIRS) with Real-Time Visualization

🔴 PROBLEM STATEMENT

Core Problem: There is NO affordable, portable, non-invasive, real-time dual-modality device that can simultaneously detect a blood clot in limb vessels AND assess the oxygen deprivation in surrounding tissues - at the point of care.

🟢 SOLUTION

"CLOTVIEW" - A Dual-Modality Portable Device combining UST + NIRS for Limb Blood Clot Visualization

How It Works - The Two-Layer Detection Principle

• Emits high-frequency sound waves (5-15 MHz) into the arm or leg
• Detects structural blockage inside veins (femoral, popliteal, brachial, radial veins)
• A clot appears as a hyperechoic (bright) non-compressible mass within the vessel lumen
• Compression test performed digitally - if vein does NOT collapse = clot confirmed

• Emits NIR light (700-900 nm wavelength) through the skin of the limb
• Measures oxyhemoglobin (HbO2) vs deoxyhemoglobin (HHb) ratio in surrounding tissue
• A clot causes downstream tissue hypoxia - NIRS detects the oxygen drop as a real-time signal
• Clot-affected tissue shows ↓ StO2 (tissue oxygen saturation) compared to the healthy contralateral limb

Visualization System

ARM / LEG SCAN
      |
  ┌───┴────────────────────────┐
  │  UST Probe + NIRS Sensor   │ ← wearable wrap-around cuff
  │  placed on limb surface    │
  └───┬────────────────────────┘
      |
  ┌───▼─────────────────────────────────────┐
  │         DUAL DISPLAY SCREEN             │
  │                                         │
  │  [LEFT PANEL - UST]  [RIGHT PANEL-NIRS] │
  │  B-Mode vein image   Heatmap of StO2    │
  │  Clot = bright mass  Clot zone = BLUE   │
  │  Normal = black      Normal = RED/GREEN │
  └─────────────────────────────────────────┘
            |
     AI-Assisted Alert:
  "HIGH PROBABILITY DVT - LEFT POPLITEAL VEIN"

Key Features of the Solution

Why UST + NIRS Together? (The Innovation)

UST alone    →  Tells WHERE the clot is (anatomy)
NIRS alone   →  Tells WHAT the clot is doing (physiology)
UST + NIRS   →  Complete picture: location + severity + tissue damage

• A fresh clot (acute) = UST shows soft mass + NIRS shows sharp StO2 drop
• An old clot (chronic) = UST shows calcified mass + NIRS shows moderate StO2 drop
• No clot = UST shows compressible vein + NIRS shows normal symmetric StO2

Target Users

• Emergency rooms and ICUs
• Rural healthcare workers (minimal training required)
• Sports medicine (athlete DVT screening post-injury)
• Post-surgical wards (orthopedic, cardiac)
• Airport medical stations (economy class syndrome - DVT after long flights)

Impact

1 device. 2 technologies. Real-time visualization. Lives saved.

• Early detection reduces Pulmonary Embolism deaths
• Eliminates need for D-dimer + Doppler ultrasound separately
• Reduces diagnosis time from hours to under 5 minutes
• Affordable enough for Tier 2/Tier 3 hospitals and field deployment

BLOOD CLOT DETECTION IN ARMS & LEGS

UST + Near-Infrared Spectroscopy | Ideathon Presentation

PROBLEM STATEMENT

• No affordable, portable, point-of-care device exists that can detect limb blood clots in real-time with visual confirmation
• Current methods (Doppler ultrasound, MRI, D-dimer test) are expensive, slow, and require specialist operators
• Existing ultrasound alone gives only structural data - it cannot tell how badly the clot is starving the surrounding tissue of oxygen
• Patients in rural areas, ambulances, and small clinics have zero access to timely clot diagnosis
• Misdiagnosis due to overlapping symptoms (swelling, pain) costs lives every day

"A blood clot undetected for even a few hours can travel to the lungs and kill. We need a faster, smarter, visual way to catch it - right at the bedside."

SOLUTION

CLOTVIEW - UST + NIRS Dual-Mode Limb Scanner

• Sends sound waves into the limb to image the veins
• Detects the physical clot as a bright, non-compressible block inside the vessel

• Shines NIR light (700-900 nm) through the skin
• Measures tissue oxygen levels downstream of the clot
• A clot = oxygen drop = NIRS detects it instantly

• Side-by-side display: UST vein image + NIRS oxygen heatmap
• Clot zones appear BLUE on the heatmap, healthy tissue appears GREEN/RED
• AI gives instant probability score: "DVT probability: 87% - Left Leg Popliteal Vein"

Why This Works Better

One Line Summary

UST shows WHERE the clot is. NIRS shows WHAT it is doing to the tissue. Together - fast, visual, accurate clot detection in arms and legs at the point of care.

🔵 STRONG & DIRECT

1. CLOTVIEW - Real-Time Blood Clot Detection in Limbs Using UST + NIRS
2. Dual-Mode Limb Scanner for Blood Clot Detection
3. UST + NIRS: A Smart Approach to DVT Detection in Arms and Legs

🟣 IMPACTFUL & CATCHY

1. See the Clot Before It Kills
2. Catch the Clot - A Portable Dual-Modality Detection System
3. VeinAlert - Non-Invasive Blood Clot Visualization for Limbs
4. LightScan - Detecting What Ultrasound Alone Cannot

🟢 TECHNICAL & PROFESSIONAL

1. Non-Invasive DVT Detection Using Integrated Ultrasound and Near-Infrared Spectroscopy
2. Multimodal Blood Clot Detection: Combining Acoustic and Optical Sensing in Limbs
3. Real-Time Thrombus Visualization in Upper and Lower Extremities via UST-NIRS Fusion

⭐ TOP RECOMMENDATION FOR IDEATHON

"CLOTVIEW - Catching Blood Clots in Limbs Through UST + NIRS Visualization"

• Simple, memorable, explains the idea instantly
• Works well on a presentation slide header
• Sounds like a real product name - judges will remember it