Video Endoscope Operation
The operator of this instrument must be physician or medical personnel under the supervision of a physician and must have received sufficient training in clinical endoscopic technique.
◆Wear personal protective equipment to guard against dangerous chemicals and potentially infectious material during the procedure.
◆Whenever possible, avoid close stationary viewing and do not leave the distal end of the endoscope close to the mucous membrane for a long time.
◆Whenever possible, do not leave the endoscope illuminated before and/or after an examination.
◆If an abnormal endoscopic image or function is observed, but quickly corrects itself, the endoscope may have malfunctioned.
◆Never perform flexibility adjustment while the endo-therapy accessory extends from the distal end of the endoscope.
△Confirm cleaning and disinfection;
△Reconfirm the connection condition;
△Use a piece of lens paper to slightly apply silicone oil on the distal end observation window and the illuminating window;
△If required, apply lubricant on the appearance of the insertion tube on the bending section and the soft section.(★ Lubricant is free from grease substances. Otherwise,the rubbertube may be damaged. Don’t apply too much lubricant on the observation window and the illuminating window. Otherwise, it will affect the clearness and brightness of view).
1.1.1 Holding and manipulating the endoscope
The control section of the endoscope is designed to be held in the left hand. The air/water and suction valvescan be operated using the left index finger. The UP/DOWN angulation control knob can be operated using the left thumb. The right hand is free to manipulate the insertion tube and the RIGHT/LEFT angulation control knob.
1.1.2 Insertion of the endoscope
◆To prevent the animal from accidentally biting the insertion tube during an examination, it is strongly recommend that a mouthpiece be placed in the animal’s mouth before inserting the endoscope.
◆Do not apply olive oil or products containing petroleum-based lubrications. These products may cause stretching and deterioration of the bending section’s covering.
◆Do not allow the insertion tube to be bent within a distance of 10cm or less from the junction of the boot. Insertion tube damage can occur.
1.1.3 Insertion and Observation
◆Switch on the power supply of the video system center, and turn on the CCD power switch.
◆Press the white balance button of the video system center, and adjust the reflected real color.
◆Adjust the illumination of the video system center to make the luminance suitable for observation.
◆As required, supply air and water, operate the angulation hand wheel, adjust the angulation to move the distal end of the video endoscope to the place to be observed, and slowly insert the distal end when observing.
◆If images become vague due to mucus, etc., press the water valve to wash the endoscope surface. Then, you can quickly make images clear by both air feeding and suction.20
1.1.4 Angulations of the distal end
Avoid forcible or excessive angulation, as this imposes load on the wire controlling the bending section. This may cause stretching or tearing of the wire, which could impair the movement of the bending section.
1. Operate the angulation control knobs as necessary to guide the distal end for insertion tube and observation.
2. The endoscope’s angulation locks are used to hold the angulated distal end in position.
●When passing an endo-therapy accessory through the instrument channel while the angulation is locked, the angle of the distal end may change. When it is necessary to keep the angulation stationary, hold the angulation control knob in place with your hand.
●When operating the UP/DOWN or RIGHT/LEFT angulation lock, hold the angulation control knob stationary with your finger. If this is not down, the angulation will change.
1.2 Use of the Biopsy Forceps
◆Open the protective rubber cap of the biopsy mouth on the grip section of the video endoscope;
◆Close the biopsy forceps tightly and insert them in the biopsy mouth slowly;
◆When observingan objective within field of vision, align the biopsy forceps with the desired objective, open the small bowl of the biopsy forceps to catch the objective;
◆After catching any living tissue or foreign matter, closing the biopsy forceps tightly and pull out them of the biopsy mouth;
◆If a foreign matter doesn’t pass the biopsy channel due to its large size; withdraw the video endoscope and the biopsy forceps from the mouth of the animal;
◆After withdrawing the biopsy forceps or other instruments, cover the protective rubber cap of the biopsy mouth.
(★To insert or withdraw the biopsy forceps or other instruments please close the cup or the moving part at the head of the biopsy forceps)
1.3Withdraw the endoscope
1.3.1 Withdrawal of the endoscope
If blood unexpectedly adheres to the surface of the insertion tube of the withdrawn endoscope, carefully check the condition of the animal.
1. Aspirate accumulated air, blood, mucus, or other debris by depressing the suction valve.
2. Turn the UP/DOWN and RIGHT/LEFT angulation locks to the "F▼"direction to release them.
3.Loosen the up/down angulation lock and left/right angulation lock, confirm that you can withdraw the endoscope from the mouth of the animal after making the bending section straight.
4.Carefully withdraw the endoscope while observing the endoscopic image.
5.After using the endoscope, be sure to switch off the CCD power supply of the video system center, and disconnect the light guide connector from the video system center.
★Since thevideo system center causes the surface temperature of the exit window at the front end of the light guide connect or exceed 41℃, you cannot touch it with your hands or skin as soon as withdrawing the light guide of this endoscope; after a while (at least two minutes), you can touch it on the hand or skin to prevent from being scalded..
1.4 Transportation of the endoscope
1.4 Transporting outside the animal hospital
Transport the endoscope in the carrying case.
Always clean, disinfect or sterilize the endoscope after removing it from the carrying case. If the endoscope is not cleaned, disinfected or sterilized, it could pose an infection-control risk.
◆The carrying case cannot be cleaned, disinfected or sterilized. Clean and disinfect or sterilize the endoscope before placing it in the carrying case.
◆Do not attach the water-resistant cap when transporting the endoscope, to avoid damage to the endoscope caused by changes in air pressure.
◆Before putting the endoscope in the carrying case, always make sure that the insertion tube is set to the most-flexible condition. Putting the endoscope in the carrying case while the insertion tube is rigid could damage the endoscope.
1.5 Cleaning and disinfection of the endoscope
When each inspection ends, clean the scope particularly the mucus on the distal end orin the tube, etc. If the Endoscope isn't washed for a long time, it may make the performance of the endoscope abnormal. Before cleaning and disinfection, make sure to cover the water-resistant cap to avoid water inflow or moisture.
★Whenever each clinical examination case ends, be sure to clean and disinfect the endoscope immediately.
The cleaning and disinfection include automatic and manual method. Our company only introduces how to manually clean and disinfect the video endoscope. For the automatic method, consult the instructions for relevant equipment.23
1.5.1 Cleaning of the Video endoscope
Leakage test of the endoscope is always required before each cleaning.
△Remove the air/water valve if applicable, suction valve and biopsy valve, wash them with clear water, and put them in disinfectant.
△Clean the insertion tube with gauze or soft sponge in clear water.
△Immerse the insertion tube in detergent solution, cleaning the insertion flexible tube slightly and repeatedly with gauze or soft sponge.
△Insert a cleaning brush into the instrument channel and the suction cylinder to brush the inner wall of the instrument channel tube.
★Do not move the cleaning brush backward until the head of the brush is completely exposed at the distal end to avoid damaging the inner wall of the tube.
△Before cleaning the air/water tube, connect the purge pipe of the tube cleaner (disinfector) to the air feeding joint at the light guide connector. Meanwhile, plug the tube cleaner (disinfector) to the water bottle connector and the air/water cylinder of the endoscope. Then, put the inlet valve of the tube cleaner (disinfector) in detergent solution, and repeatedly aspirate the syringe to wash the air/water channel tube. (For the connection and operation method, see Figure 1.3 Tube Cleaning and Disinfection)
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