Technology is now part of how clinicians prevent harm, deliver treatment, and support recovery. This chapter reviews tools that work before problems begin. Physical products such as compression sleeves, antiseptic solutions, and standardized dressing kits lower infection risk and help prevent clots. Technique-based practices such as structured rounds, postoperative checklists, and clear risk rules make safe actions routine. Software support such as clinical decision support, dashboards, electronic quality measures, and patient apps helps teams follow guidelines and spot gaps. During treatment, interoperable devices and image guided platforms improve precision and reduce medication and procedure related risk. After treatment, remote monitoring and telehealth allow earlier intervention and support at home. Results across studies are consistent. Gains are largest when tools fit the workflow, are standardized, and are measured in simple ways. Risks such as alert fatigue, poor usability, technology induced error, and bias require training and ongoing review. Used this way, technology acts as a practical safety net.