機器
adult
background
blood
cardiac
care
check
clinic
closeup
coronavirus
covid19
device
digital
display
electronic
equipment
finger
fingertip
fingertip pulse oximeter
hand
health
heart rate
heartbeat
hemoglobin
hospital
level
man
measure
measurement
measurements
medical
medicine
meter
modern
monitor
monitoring
oximeter
oximetry
oxygen
oxygen saturation
oxygen saturation level
patient
person
portable
pressure
pulse
rate
saturation
technology
vital