Given the short duration of security screening, it is unlikely that your heart device will be affected by metal detectors (walk-through archways or hand-held wands) or full-body imaging scanners (millimetre wave or 3D imaging scanners) such as those found at airports, concert venues, and courts.
The metal casing of your heart device may set off a metal detector. To minimise any risk of interference, avoid touching metal surfaces around screening equipment, and walk through archways at a normal pace without stopping or lingering.
If a hand-held wand is used, ask the security officer not to hold or wave it directly over the area where your device is implanted. You can request a manual pat-down search as an alternative. Show your device ID card if you have it. If you have any concerns, explain your situation to security personnel and follow their instructions.