"… or stop someone's heart." Please give an example of a pacemaker that is known to (potentially) kill the patient if the WiFi/Bluetooth is unavailable for a fe

"… or stop someone's heart." Please give an example of a pacemaker that is known to (potentially) kill the patient if the WiFi/Bluetooth is unavailable for a few minutes. I know that some modern medical devices use 2.4GHz radios for uploading telemetry, self service interfaces, etc. If such a device really exists the manufacturer should be held liable for putting a dangerous, defective product on the market.