TissueDB/Materials/Ink or Dye
Ink or dye is a liquid, gel or powder colourant used in medical simulation to give a fluid or surface a realistic colour — most often red to mimic blood, green to mimic bile, or black (India) ink to add contrast in an ultrasound phantom. A dye is usually mixed into water (sometimes with a thickener such as corn syrup) to make simulated blood or bile, or added to a fluid circuit so that a leak becomes visible. The many named colours and brands are grouped as one material class because the colour is a detail of the same colourant, not a different material.
Tissues
| Tissue | Visual | Tactile | Simulator | Notes |
|---|---|---|---|---|
| Blood | – | – | Peripheral Intravenous Catheterization Trainer | Red dye — a few drops per 500 mL of water is typically enough; concentration affects visual realism. |
| Blood | – | – | Hemorrhage Control Simulator (Malik) | Red dye mixed with saline or other IV fluid to simulate active venous and arterial bleeding from stab wounds in a goat or lamb hind leg. |
| Bile | Yes | No | Laparoscopic Cholecystectomy Simulator | Green dye — 3–5 drops per 200 mL of water gives a realistic bile colour and visibility during gallbladder procedures. |
Used In Simulators
| Simulator | Purpose | Notes |
|---|---|---|
| Grapefruit dACA Bypass Simulator | Leak-indicator dye (not a tissue) | A few drops of food colouring in the ~250 mL water reservoir make an anastomotic leak visible during the water-leak check.[1] |
References
[edit source]- ↑ Cikla U, Rowley P, Jennings Simoes EL, Ozaydin B, Goodman SL, Avci E, Baskaya MK, Patel NJ. Grapefruit Training Model for Distal Anterior Cerebral Artery Side-to-Side Bypass. World Neurosurgery 2020;138:39–51. DOI 10.1016/j.wneu.2020.02.107. PMID 32109640.
Overview
[edit source]Colourants come as liquid, gel or powder, most commonly food-grade FD&C dyes that are inexpensive, non-toxic and available worldwide. Use them sparingly — a few drops per 200–500 mL of water — since concentration, not quantity, sets the realism. Red mimics blood (often with a thickener for body), green mimics bile, and black or India ink (a carbon-based pigment) is added to a tissue phantom to raise its ultrasound echo-contrast. Paint and powder finishes (for example water-based enamel or talcum) are handled separately and are not part of this class pending a naming ruling.
Synonyms
[edit source]Clinical Context for Simulation
[edit source]Processing & Preparation
[edit source]Safety Considerations
[edit source]Related Materials
[edit source]| Authors | Arturopelayo |
|---|---|
| License | CC-BY-SA-4.0 |
| Cite as | Arturopelayo (2026). "TissueDB/Materials/Ink or Dye". Appropedia. Retrieved July 3, 2026. |