Which device is used to inflate the balloon to the desired pressure during PCI?

• A. Inflation device
• B. Manifold
• C. Extension tubing
• D. Blunt tip wire introducer

Answer: (A)

The balloon is inflated with a dedicated inflation device because it provides controlled, measurable pressure to the balloon, allowing the operator to reach the target dilation without overinflation or rupture. This device connects to the proximal catheter port and often includes a pressure gauge or manometer to monitor the exact pressure as the balloon is inflated. The extension tubing simply links components and does not regulate pressure, the blunt tip wire introducer is used to place the guidewire, and the manifold is a multiport connector used in other parts of the circuit.