TissueDB/Materials/Ballistic Gel
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Ballistic gel (ballistic gelatin) is a standardised gelatin formulation used in medical simulation to create durable, optically clear tissue phantoms for ultrasound-guided procedures, needle insertion training, and trauma response.[1] Available in 10% (FBI standard) and 20% (NATO standard) concentrations, it provides reproducible mechanical properties, self-healing capability, and optical clarity that allows direct visualisation of needle paths and embedded structures.
Tissues
| Tissue | Visual | Tactile | Simulator | Notes |
|---|---|---|---|---|
| Soft Tissue | Yes | Yes | Ultrasound-guided nerve block phantoms[1] | 10% concentration at 4°C. Optical clarity allows direct needle placement verification without imaging. |
| Subcutaneous Tissue | Yes | Yes | Sonographic ballistic gelatin phantoms[2] | Custom silicone moulds create anatomically accurate phantoms accepting embedded vessels and structures. |
| Muscle | Yes | Partial | Ventricular catheter placement trainer[3] | 20% concentration approximates muscle density. Cost under $5 per unit. |
| Soft Tissue (vascular) | Yes | Yes | ECMO cannulation training model[4] | Synthetic ballistic gel (Clear Ballistics) is room-temperature stable for percutaneous cannulation training. |
Troubleshooting
| Do Not Do This | Do This Instead | Why |
|---|---|---|
| Use ballistic gel above calibration temperature | Maintain at 4°C for standardised properties; use promptly after removal from refrigeration | Warm gel softens and provides unrealistic low resistance, teaching incorrect force calibration |
| Expect ballistic gel to hold sutures | Use silicone or layered fabric materials for suture training | Ballistic gel does not hold sutures adequately; practising on it teaches incorrect suture tension and technique |
| Reuse blocks with extensive damage without recasting | Remelt and recast damaged blocks to restore properties | Accumulated wound channels alter mechanical properties and create unrealistic needle paths |
| Use traditional ballistic gel when refrigeration is unavailable | Use synthetic alternatives (Clear Ballistics, Perma-Gel) or switch to agar | Traditional gelatin-based ballistic gel requires strict cold chain; without it, mechanical properties drift |
Alternatives
| Alternative | Best For | Trade-offs |
|---|---|---|
| Gelatin | General simulation where calibration is not critical | Lower cost, locally available; not standardised, same cold chain requirement |
| Agar | Resource-limited settings, culturally-inclusive programmes | No refrigeration needed, halal/kosher compatible; brittle, no self-healing, not optically clear |
| PVA Cryogel | Long-term phantoms, elastography training | Room temperature stable, durable; not optically clear, requires freezer for fabrication |
| Silicone | Permanent installations, high-volume training | Durable, no temperature concerns; high cost, not optically clear, not self-healing |
References
[edit source]- ↑ 1.0 1.1 Marsh-Armstrong B, et al. "Building Affordable, Durable, Medium-fidelity Ballistic Gel Phantoms for Ultrasound-guided Nerve Block Training." J Vis Exp. 2024. doi:10.3791/66194
- ↑ Frederick J, Stolz L. "Molding the Future: A Novel Method for Developing Custom Silicone Molds for the Creation of Sonographic Ballistics Gelatin Phantoms." J Emerg Med. 2025. doi:10.1016/j.jemermed.2025.08.040
- ↑ Todnem N, et al. "A simple and cost-effective model for ventricular catheter placement training: technical note." J Neurosurg. 2020. doi:10.3171/2020.2.JNS19161
- ↑ Palmer D, et al. "A High-Fidelity Percutaneous Model Used to Demonstrate ECMO Cannulation." J Extra Corpor Technol. 2021;53(3):204-209. doi:10.1182/ject-2100009
Overview
[edit source]Ballistic gel is a specialised formulation of gelatin with standardised concentration and preparation protocols originally established by the FBI (10%) and NATO (20%) for consistent ballistics testing. In medical simulation, it creates optically clear phantoms that allow direct visualisation of needle paths and embedded structures during ultrasound-guided procedure training. Traditional ballistic gel requires strict temperature control at 4°C for standardised properties. Commercial synthetic alternatives (Clear Ballistics, Perma-Gel) are stable at room temperature and reusable through remelting.
Synonyms
[edit source]Common names: Ballistic gel, ballistic gelatin, ordnance gelatin, wound channel gel
Forms: FBI gel (10% formulation), NATO gel (20% formulation), traditional gelatin-based, synthetic alternatives
Trade/commercial names: Perma-Gel, Clear Ballistics
Shelf Life & Storage
| Temp Range | Humidity | Surface Reuse | Shelf Life | Spoilage |
|---|---|---|---|---|
| Traditional (gelatin-based) | 1–2 weeks refrigerated (4°C) | Moderate-high spoilage risk; 20–50+ puncture reuses; sealed/wrapped storage | ||
| Synthetic (Clear Ballistics, Perma-Gel) | Indefinite at room temperature | No spoilage; reusable through remelting; 20–50+ puncture reuses |
Clinical Context for Simulation
[edit source]Processing & Preparation
[edit source]Safety Considerations
[edit source]Related Materials
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