No shinkei geka. Neurological surgery · 2019
[Quality Control of Medical Instruments and Cleaning Water].
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Nakayama Hirobumi, Kawaguchi Kimiyuki, Kato Akihito, Morishima Hiroyuki, Nagashima Goro, Yagioka Setsuko, Asakura Takeshi, Tanaka Shinichi, Tanaka Yuichiro
Аннотация
PURPOSE: Herein we aimed to investigate the degradation of surgical instruments in our hospital and how water quality affects the rate of metal corrosion.
MATERIALS AND METHODS: We observed 279 stainless steel instruments, and determined the presence of damage like metal corrosion or scale formation. We also measured the concentrations of chloride(Cl-)and silicate(SiO44-)ions in the water used for cleaning in our operating rooms, including tap water from the city water supply and reverse-osmosis(RO)filtered water.
RESULT: Pitting corrosion was observed on 71% of the instruments we investigated. The concentration of Cl- was 0.7mg/L in tap water and 0.1mg/L in RO water, while the concentration of SiO44- was 0.3mg/L in both the tap and RO water.
DISCUSSION: Of the dissolved ions Cl- and SiO44-, Cl- is more of a concern, as it causes pitting corrosion over time, while SiO44- causes scale formation. Considering the typical water quality in the operating-room environment, degradation must be monitored for the general maintenance of metal surgical instruments.
MATERIALS AND METHODS: We observed 279 stainless steel instruments, and determined the presence of damage like metal corrosion or scale formation. We also measured the concentrations of chloride(Cl-)and silicate(SiO44-)ions in the water used for cleaning in our operating rooms, including tap water from the city water supply and reverse-osmosis(RO)filtered water.
RESULT: Pitting corrosion was observed on 71% of the instruments we investigated. The concentration of Cl- was 0.7mg/L in tap water and 0.1mg/L in RO water, while the concentration of SiO44- was 0.3mg/L in both the tap and RO water.
DISCUSSION: Of the dissolved ions Cl- and SiO44-, Cl- is more of a concern, as it causes pitting corrosion over time, while SiO44- causes scale formation. Considering the typical water quality in the operating-room environment, degradation must be monitored for the general maintenance of metal surgical instruments.