BCSI pH SAFE PH1000, Руководство оператора

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Chapter 2 System Description
pH SAFE Reader Operator Manual - Doc. No. 120001-09 7
2 System Description
2.1 Theory of Operation
The pH SAFE
TM
( S terile, A utomated F luoroscopic E valuation) technology is
based upon the principle that fluorescent dyes emit characteristic wavelength
spectra at different pH levels.
BCSI Platelet
Storage Bags
Concentrated platelets, a cellular component of blood, are stored in BCSI
Platelet Storage Bags intended for specific use with the pH SAFE Reader .
BCSI Platelet Storage Bags are manufactured to be identical to standard
platelet storage bags, in form and function, while providing an additional,
embedded
pH SAFE Sensor . This port allows non-invasive pH monitoring of
the fluid in the bag using the pH SAFE Reader .
NOTE:
BCSI Platelet Storage Bags may be used in exactly the same manner as
standard platelet storage bags for platelet collection and transfusion
purposes. Refer to the
BCSI Platelet Storage Bag
package insert for
complete information about the characteristics and intended use of
the BCSI Platelet Storage Bags.
Figure 2-1 BCSI Platelet Storage Bag and pH SAFE Sensor
pH SAFE Sensor The pH SAFE Sensor is a modified optical cuvette component which allows
non-invasive insertion of a Fiber Optic Probe and provides a special membrane
located at the lower end of the sensor. The membrane is impregnated with a
fluorescent dye which emits a characteristic wavelength spectra at different pH,
sealed inside the bag and immersed in the fluid contained by the bag. The dyed
membrane is positioned adjacent
to a transparent optical window such that
fluorescent light emitted by the dye can be measured by the pH SAFE Reader
without removing any fluid, opening the bag, or otherwise compromising the
bag integrity and sterility of the platelet product.
pH SAFE
Sensor
Optical
Window
Dyed
Membrane