A freezer glitch rendered about 13,700 units of fresh frozen plasma blood unusable at the Japanese Red Cross Society's blood center in Tokyo in May, it was learned Tuesday.
The incident did not affect deliveries of blood products to medical institutions, and the affected units will be used as materials for other products that can be stored at higher temperatures, officials of the center said.
On May 11, a freezer at the blood center in Tokyo's Koto Ward lost power around 10:30 p.m. Before the power was restored about four hours later, the temperature of the fresh frozen plasma blood units inside was above the standard level of minus 20 degrees Celsius for about two and a half hours.
The power cut was caused by a faulty device installation in the temperature control panel, the officials said.
The Japanese Red Cross Society reported the incident to the health ministry on June 10. At a news conference on Tuesday, health minister Takamaro Fukuoka said the ministry strongly demanded the society report any incident in a timely manner.
With your current subscription plan you can comment on stories. However, before writing your first comment, please create a display name in the Profile section of your subscriber account page.