Targeted flowmeter | Nat Neurosci: A new approach to AD research - targeting pericytes to regulate cerebral blood flow and improve cognitive impairment

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Why do hospital instruments need to be calibrated? What are the benefits of doing a good job in metrology calibration? The purpose of measuring and calibrating hospital instruments is to ensure equipment accuracy, ensure medical safety, improve service quality, and meet legal and regulatory requirements. The benefits of doing a good job in metrological calibration are as follows: ensuring equipment accuracy and avoiding medical accidents. Equipment used in hospitals such as blood pressure monitors, oxygen flow meters, CT scans, etc. are prone to parameter drift or numerical errors after long-term operation. By regularly measuring and calibrating, these errors can be detected and corrected in a timely manner, ensuring the authenticity and reliability of the data output by the equipment. For example, if the dose error of CT scanning is not calibrated, it may lead to patients receiving excessive radiation; The deviation of blood pressure monitor readings may affect the accuracy of hypertension diagnosis. Metrological calibration eliminates the risk of equipment failure from the source, avoids misdiagnosis, missed diagnosis or treatment errors caused by data distortion, and ensures the safety of patients lives. Improving the quality of medical services: In public health events such as epidemics, the frequency of use of medical equipment has significantly increased, and its accuracy directly affects the effectiveness of protection. For example, inaccurate flow calibration of ventilators may lead to inadequate or excessive ventilation in patients; The error of temperature detection equipment may affect the efficiency of epidemic screening. Through metrological calibration, equipment can provide more accurate data support, helping medical staff develop more scientific diagnosis and treatment plans, thereby improving the overall level of medical services. According to the Metrology Law of the Peoples Republic of China and its implementation rules, some medical equipment (such as electrocardiographs, ultrasound diagnostic devices, etc.) are included in the mandatory calibration catalog and must be regularly calibrated and certified by legal metrology institutions. Devices that have not been calibrated according to regulations shall not be used in clinical practice, otherwise they may face administrative penalties. Compliance calibration not only avoids legal risks, but also reflects the hospitals emphasis on the professionalism and standardization of medical behavior. Reduce management costs and improve efficiency. Regular calibration can detect potential equipment problems (such as sensor aging and circuit failures) in advance, avoiding downtime and maintenance caused by sudden failures. For example, if an uncalibrated blood analyzer produces abnormal test results due to errors, it may lead to repeated examinations or misdiagnosis for patients, increasing medical costs. The calibrated equipment runs stably, reducing maintenance frequency and downtime, while shortening patient waiting time and optimizing the diagnosis and treatment process. Enhancing patient trust is closely related to their perception of medical safety and service quality in hospitals. By publicly disclosing calibration records or displaying qualified identification, hospitals can convey the signal of "precise equipment and reliable diagnosis and treatment" to patients. For example, a calibrated blood pressure monitor labeled as "calibrated" can provide patients with more p

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