19
Human NIBP Nano
Owner’s Guide
•
The finger cuff should not be applied over a wound as this could
cause further injury
•
Do not attempt to repair defective finger cuff s (for example, with
adhesive tape) as this will substantially aff ect measurement
accuracy.
•
Don’t remove the finger cuff from a finger before stopping the
measurement. Aft er a measurement is complete, you should
disconnect the air hose from the Wrist Unit and unwrap the finger
cuff . This will prevent accidental damage to the finger cuff . The
Human NIBP Nano Interface automatically takes pressure away
when the finger cuff is unwrapped.
The Finger Cuff
The main components of the finger cuff are an inflatable air bladder, and
a plethysmograph consisting of a light source and a light detector. The
light source is a LED (Light Emitting Diode) emitting infrared light. The light
detector is an infrared photodiode (Figure 2–7).
The air bladder is connected to the Wrist Unit via an air hose. Both
components of the infrared plethysmograph are connected to the Wrist
Unit via a cuff cable.
a:
Air hose connector
b:
Cuff cable connector
e:
Light source (Light Emitting Diode, LED)
d:
Light detector (Photodiode)
c:
Cuff air bladder
a
b
d
e
c
Figure 2–7
The components of a
fi nger cuff.
