A cardiac arrest is a disruption of the electrical signals that trigger heartbeats, causing the heart to beat erratically so that it does not pump blood effectively.

心脏骤停是一种对触发心跳的电信号的破坏，能够导致心脏不稳定地跳动，使其不能有效地供给血液。

youdao

Insert a foil pack of powdered insulin into a slot, prime the pump with a lever and push a trigger that releases the cloud of insulin into a clear plastic chamber.

FORBES: Magazine Article