Equil
TM
Insulin Patch Pump System
107
16.3 Alarm System Delay
The alarm system has an inherent
delay between the two components, as
shown in Figure 121:
•
T2-T1: The time it takes for a safety
sensor in the patch pump to detect an
alarm ≤0.1s.
•
T3-T2：The amount of time between
detecting an alarm and issuing an alarm
signal within the patch pump ≤0.1s.
•
T4-T3: The time it takes for the pump to
send the alarm information wirelessly to
the PDA ≤ 4s.
•
T5-T4：The amount of time between
when the PDA receives the alarm to issuing
the alarm signal ≤
0.1s.
Figure 121
Graphical Representation of Alarm Delay
The alarm system is distributed ‒ if a
pump sensor detects a problem it will
issue an alarm within 0.2 seconds. The
PDA will receive the information and issue
an alarm within 4 seconds.
Instantaneous signal
from PATIENT
Algorithm variable response
ALARMLIMIT
ALARM SIGNAL generation
Norm alized variable
PHYSIOLOGICAL ALARM CONDITION
To Next Page
Loading...