Gima 35145, Руководство пользователя

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12.5 Changing IBP Settings
Select “Menu”

“IBP” to enter into IBP related setting.
• Label : the name of blood pressure to be measured. It has the following options:
ART---artery pressure PA---pulmonary pressure
CVP---central vain pressure RAP---right atrium pressure
LAP---left atrium pressure ICP---intracranial pressure
AUXP1---auxiliary pressure 1 AUXP2---auxiliary pressure 2
•
AUXP
-- auxiliary pressure: AUXP1/2 can be chosen if the actual measuring pressure is not in the list of
ART, PA, CVP, RAP, LAP, and ICP. The operator can choose the Calculating Mode according to the type of
blood pressure. If artery pressure is monitored, please choose “dynamic”, then the reading out will include
Systolic, Diastolic and MAP. If vein pressure is monitored, please choose “static”, then only the MAP will be
displayed.
• Calc. Mode : when the Label is AUXP1 or AUXP2, the calculate mode can be “static” or ”dynamic”.
• Filter : there are two options for the pressure waveform filtering ---12.5Hz and 40Hz, the factory is 12.5Hz.
• Avg. time : the time period for averaging to calculate Mean Pressure. Setting range from 1s to 12s, the fac-
tory is 8s.
• Unit : pressure unit. 2 options: mmHg and kPa.
• Zero : perform zero calibration for pressure transducer. Press “Zero” button, then zero calibration dialog
pops up on the screen, then press “Zero” to start calibration. (Note: before performing zero calibration,
please make sure that the transducer is well connected, or the zero calibration will not work.)
• PARM : to enter into IBP alarm setting. See Section “ Understanding the Alarm Setting ”.
Chapter 13
MONITORING CARBON DIOXIDE (CO
2
)
13.1 Introduction
CO
2
Measuring Principle
The principle is based on the fact that CO
2
molecules absorb infrared light energy of specific wavelengths,
with the amount of energy absorbed being directly related to the CO
2
concentration. When an IR light beam
is passed through a gas sample containing CO
2
, the electronic signal from a photodetector (which measures
the remaining light energy), can be obtained. This signal is then compared to the energy of the IR source, and
calibrated to accurately reflect CO
2
concentration in the sample. To calibrated, the photodetector’s response
to a known concentration of CO
2
is stored in the monitor’s memory.
The monitor determines CO
2
concentration in the breathing gases by measuring the amount of light absorbed
by these gases. EtCO
2
is displayed as a numerical value in millimeters of mercury (mmHg), percent (%), or
kilopascals (kPa). In addition, a CO
2
waveform (capnogram) may be displayed which is a valuable clinical tool
that can be used to assess patient airway integrity and proper endotracheal tube placement. Respiration rate
is calculated by measuring the time interval between detected breaths.
Mainstream vs. Sidestream Sampling
Mainstream CO
2
sensors are placed at the airway of an intubated patient, allowing the inspired and expired
gas to pass directly across the IR light path. The major advantages of mainstream sensors are fast response
time and elimination of water traps.
Sidestream CO
2
sensors are located away from the airway, requiring a gas sample to be continuously aspirat-
ed from the breathing circuit and transported to the sensor by means of a pump. This type of system is needed
for non-intubated patients.
When using mainstream CO
2
sensors, check the window for the patient secretions pooled on periodically.
Because that condition may affect the accuracy of the measurement or even make the sensor not work.
When using sidestream CO
2
sensors, there is a water trap or a part of the sampling tube with dehumidifying
function. Please periodically check the flow sensor and tubing for excessive moisture or secretion buildup.
13.2 Safety Information

CO
2
Sensor is a precision measuring part, please use it correctly and store it properly;