Diagnostic devices are tools, instruments, or equipment used to identify, detect, or monitor medical conditions, diseases, or abnormalities in patients. These devices are essential for healthcare professionals to make accurate diagnoses, establish treatment plans, and monitor patients' progress. Diagnostic devices can range from simple tools like thermometers and blood pressure cuffs to complex imaging machines like MRIs and CT scans. They can be used in various healthcare settings, including hospitals, clinics, laboratories, and in-home care. The development and advancement of diagnostic devices have significantly improved the quality of healthcare by enabling early detection of diseases, reducing healthcare costs, and improving patient outcomes.