What possible purpose, or gain, could China obtain from putting in a back door on hospital monitoring equipment that displays a user’s vitals?
https://www.pcmag.com/news/chinese-made-patient-monitor-contains-a-secret-backdoor
At least the NSA has the good sense to put backdoors in important software, like your graphics cards.
lol
Rule of thumb with modern gadgets with network abilities - keep them in your local network and never allow them to reach internet. :)
Or write your own firmware, or use opensource one, like OpenWRT for routers.