"Stoma stopper" - это "(силиконовая) пробка (или заглушка) для стомы.

"Stopper is a small silicone plug designed to seal the stoma, in between catheter insertions for ACE and MACE patients."

https://www.halyardhealth.com/solutions/digestive-health/cor...

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Note added at 30 mins (2018-03-17 14:01:46 GMT)
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А "АСЕ" - это скорее всего "adverse clinical events".

https://www.abbreviations.com/serp.php?st=ACE&p=99999

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Note added at 43 mins (2018-03-17 14:14:01 GMT)
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Нет, извиняюсь. "ACE" - это "Antegrade Continence Enema":

"Many people who have spina bifida will suffer with problems of constipation and faecal incontinence. The Antegrade Continence Enema or ACE is a way of managing bowel emptying at a convenient time each day, and should reduce both constipation and soiling episodes. The procedure involves sitting on a commode or toilet whilst a washout is given through a small opening or stoma on the abdomen."

https://www.shinecharity.org.uk/uploads/media_items/ace-proc...

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Note added at 57 mins (2018-03-17 14:28:22 GMT)
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Т.е. "(силиконовая) пробка для стомы при антеградной клизме".


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Note added at 59 mins (2018-03-17 14:30:48 GMT)
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"Антеградная клизма (ACE) - это хирургическая процедура, предназначенная для облегчения и удобства клизмы."

http://isaopaulobrasil.com/spina-bifida-лечение/

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Note added at 1 hr (2018-03-17 14:48:39 GMT)
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Лучше "заглушка для стомы" - гуглится лучше:

https://www.google.com/search?num=50&newwindow=1&ei=hymtWv7f...