| 摘要 |
A rectal balloon apparatus has a shaft with a fluid passageway extending therethrough. A balloon is affixed over an end of the shaft such that the fluid passageway communicates with an interior of the balloon. A collar is affixed around the shaft which is suitable for dilating a patient's anal verge. The collar is a color distinct from the colors of the balloon and the shaft. The collar has a first section hingedly connected to a second section so as to allow the collar to be selectively affixed to the shaft. The collar has an outer diameter that is roughly twice an outer diameter of the shaft. The collar can be snap-fitted around the shaft.
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