Endscopes; Internal Channels - Pentax EG-290Kp Owner's Manual

4-1. ENDSCOPES

4-1-1 INTERNAL CHANNELS

The following internal schematics have been provided as a service to help users better understand the intricate con-
struction of PENTAX endoscopes. Knowledge of the various internal channels and tubes within an instrument and
their relation to each other allows one to care for and reprocess the endoscope more easily and with greater confi-
dence.
Much time and effort has been expended into designing endoscopes and their cleaning/disinfecting components
so that reprocessing of the instruments before each patient use can be effectively and efficiently performed by ei-
ther manual methods or automated processes.
Connectors on all PENTAX cleaning/disinfecting adapters and scope inlet ports incorporate standard size luer-
lock and/or luer-slip fittings to easily accommodate reprocessing devices or systems available from other manu-
facturers.
As can be seen from these internal schematics, the PENTAX cleaning system promotes efficient unidirectional
flow of solution beginning from connections at the light guide plug, traveling up tubings in the umbilical cable to
the valve cylinders in the control body, passing through the channels in the insertion tube and finally exiting noz-
zles or channel openings at the distal tip of the scope.
The elimination of multiple branching of channels, combined with a direct and straightforward pathway for solu-
tions to travel maximizes flow efficiency and ensures contact of detergent/disinfectant/sterilant with all internally
exposed channel surfaces.
WARNING: (in the U.S.A. or other countries adhering to FDA regulations)
It is imperative that flexible endoscopes and other semi-critical devices be reprocessed using at least
high-level disinfection with a legally marketed sterilant/disinfectant. Only legally marketed endoscope
automated reprocessing devices/systems whose device specific claims have been validated by the AER
manufacturer and/or anti-microbial agents which have been tested and found to be compatible by Pen-
tax should be used with PENTAX products.
Generally speaking, "2%" and "3.2%" alkaline glutaraldehyde solutions which have been FDA cleared
with High-Level Disinfection and/or Sterilization claims are recommended. It should be noted that the
actual percentage of active ingredient (glutaraldehyde) in these solutions, as per their product label,
may vary from the generic and traditional terms "2% glutaraldehyde" and/or "3.2% glutaraldehyde".
For specific brands of compatible disinfectants/sterilants, please contact your local PENTAX service
facility or sales representative. Please also refer to the inside front cover of this manual regarding infec-
tion control.
Items required for reprocessing:
• 10 mL Syringe
• 50 mL Syringe
• Tray/Reprocessing basin (at least 40 cm by 40 cm/16 in × 16 in)
• Soft Sponge
• Personal Protective Equipment (PPE) including gloves, face mask, etc.
• Soft Sterile Gauze
• PVE Soaking Cap OE-C9
• Air/Water Channel Cleaning Adapter OF-G17
• Rubber Inlet Seal
• Cleaning Brush CS6021SN
• Cleaning Brush CS-C5S
• Air/Water/Instrument Channel Cleaning Adapter OF-B115
• Suction Control Valve OF-B120
• Air/Water Feeding Valve OF-B121
• Detergent
• Disinfectant
• Alcohol
• Source of compressed/forced air
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