Background: Digital transformation through the use of technologies like blockchain, Artificial Intelligence (AI), and the Internet of Things (IoT) is the main focus of the 4th generation technology. In Smart Hospitals, the 4th generation technology boosts productivity while cutting expenses, permits monitoring and early diagnosis, and enhances the quality of medical services.Objectives: This study was carried out with the intention of implementing the 4th generation technology tools in Smart Hospitals, given the current technological breakthroughs and the need for Smart Hospitals in Iran.Methods: The current research is bibliometric in nature. All the papers published between 2000 and 2024 that had focused on the themes of Smart Hospitals and the 4th generation technologies which contained keywords like blockchain, AI, the IoT, and Smart Hospitals make up the study's population. Advanced searches in the citation ScienceDirect and PubMed databases were used to gather the data for this investigation. The citation network was visualized and examined using VOSviewer software.Results: According to this survey, when it comes to the use of the 4th generation technology tools in Smart Hospitals, 40% of the articles mention improving patient care, 35% highlight operational efficiency, and 25% stress data driven decision making as important elements.Conclusion: In addition to boosting patient safety, monitoring, early diagnosis, and the quality of medical services, the 4th generation technology tools are essential for converting a conventional Hospital into a Smart Hospital and cutting expenses. These instruments are therefore crucial for enhancing patients' comfort and well-being in Smart Hospitals.