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MN1-5255 Rev. 15
4-3. Insertion of the probe
① Return deaerated water to the syringe until the balloon
becomes deflated, with only a small amount of water
remaining in it. Then, insert the probe into the rectum.
② After inserting the probe in the rectum, inject deaerated
water into the balloon in order to inflate it.
③ The balloon is used to provide the distance needed between the probe and the region to be observed to
produce sharp and clear images. Adjust the amount of deaerated water in the balloon to obtain the best
level of inflation.
④ Before pulling the probe out of the body, drain the water from the balloon.
-22-
A small amount of water
remains in the balloon
Condition of the probe
inserted into the body cavity
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