Managing the risk from children's travel cups

Area of Science:

• Biomedical Engineering
• Materials Science
• Pediatric Safety

Background:

• Reports indicate children and adults trapping tongues in travel mug lids, causing distress and potential medical emergencies.
• Risks include airway compromise, tongue necrosis, and dental trauma, necessitating emergency interventions.
• While some products were recalled, similar dangers persist with other brands.

Purpose of the Study:

• To design and test an alternative travel mug lid to prevent tongue entrapment injuries.
• To engineer a safer lid that mitigates the risks associated with existing designs.

Main Methods:

• Developed a novel lid with parallel bars to prevent tongue protrusion.
• Utilized 3D printing for prototype creation of original and new lids.
• Tested lid designs using a tongue substitute and a material testing machine to measure pullout force.

Main Results:

• The new lid design significantly reduced the median pullout force compared to the original (2.37 N vs. 4.64 N).
• The novel design showed no material trauma, unlike the original lid which exhibited damage.
• Statistical analysis confirmed a significant difference in pullout force between the two designs (p=0.0286).

Conclusions:

• The developed lid design appears to offer enhanced safety by reducing entrapment forces.
• Further testing is recommended to validate safety for other body parts and various tongue substitute sizes.
• Laboratory testing provides initial evidence, but real-world safety requires further investigation.