An action with a response
A tactile device can give the child a simple physical action that changes something in a virtual environment. This is a different product idea from holding an unrelated object while watching a video.
The cause-and-effect relationship should be easy to understand. The child should not need complicated controller movements while the clinical team performs a procedure.
A signal is not a pain meter
Grip may reflect strength, anxiety, excitement, fatigue or concentration. The research approach considered interaction alongside contextual physiological information. It did not make a squeeze an independent diagnosis of pain.
A public demonstration should illustrate the interaction without displaying fictitious live patient measurements. That helps people understand the idea without exaggerating what a sensor knows.
What has and has not been isolated
The randomized comparison combined tactile feedback with adaptation. It cannot assign a separate clinical effect to the ball alone. Further work could investigate individual components and configurations.
Keep the clinical task central
Discuss comfortable positioning, which hand can interact, access to the procedure site, device hygiene and the child’s willingness with the care team. The actual pilot configuration matters more than an idealized render.