1, 2 It contains all normal layers of the intestinal wall and, in approximately 50 percent of cases, contains tissue from other sites (ectopic tissue). 2 This ectopic, or heterotopic, tissue can often be the cause of complications occurring in Meckel's diverticulum. Meckel's diverticulum occurs in about 2 percent of the population, making it the most prevalent congenital abnormality of the gastrointestinal tract.
A common helium-filled latex balloon lasts from about 12 hours up to two days. However, the size, type of material, and presence of a sealant all affect the balloon's lifespan. The treatment and level of activity to which the balloon is subjected also affects how long it floats.
We recommend inflating latex balloons with helium as close to the event as possible in order for them to look their best throughout. As a rough guide, 10 inch balloons will float for around 8-10 hours whilst 12 inch balloons will float for around 12. However, factors such as temperature, who the balloon is manufactured by and what accessories are used will all have an impact.