An Overview of Medical Robots and Their Applications

Medical robots have become an integral part of modern healthcare systems, offering support in various areas such as clinical care, patient support, medical education, and assistance for individuals with disabilities. Based on their functions, these robots can be broadly categorized into clinical robots, nursing robots, educational robots, and assistive robots.

1. Hospital Logistics Robots

Hospital logistics robots play a key role in automating routine hospital tasks. These intelligent robots can deliver medication, transport meals to isolation wards, and handle the collection of linens and medical waste. Controlled by a central dispatch system, they can autonomously open and close doors, ride elevators, avoid obstacles, and recharge without human assistance. Some are equipped with ultraviolet disinfection lights to ensure sanitary conditions. They also support real-time video and audio communication, allowing interaction between medical staff and patients in restricted areas. These robots help reduce the workload on nurses by taking over routine delivery tasks, including transporting medical records and lab reports.

2. Patient Mobility Robots

Designed to assist with patient transfer, these robots help move patients with mobility issues or paralysis. They aid nurses in safely relocating patients, reducing physical strain and improving overall care efficiency.

3. Clinical Robots

Clinical robots are used in surgical procedures and diagnostic applications. For instance, Japan's WAPRU-4 is a robot designed to assist with diagnosing thoracic tumors. A more well-known example is the "Da Vinci Surgical System," developed in the United States and approved by the FDA. This robot features four robotic arms and allows surgeons to perform delicate procedures such as heart valve repairs and tumor removal with high precision. NASA is also exploring the use of medical robots for remote surgeries in environments like underwater labs and space shuttles, where operations could be performed by doctors on Earth via computer interfaces.

In addition to civilian use, medical robots are being developed for military purposes. In 2005, the U.S. military invested $12 million in the "Battlefield Trauma Management System," which enables robots embedded in armored vehicles to provide emergency treatment to injured soldiers under remote guidance from doctors.

4. Rehabilitation and Assistive Robots

Also known as assistive or rehabilitation robots, these devices are developed to support individuals with disabilities. They help restore a level of independence by aiding in daily activities. One example is the Prab Command System used in the U.S., designed to enhance the autonomy of disabled individuals.

5. Nursing Robots

To reduce the burden on healthcare workers, researchers in the UK are developing nursing robots capable of verifying patient identities and distributing medications accurately. In the future, these robots may also monitor patients' temperatures, clean hospital rooms, and support doctors by providing real-time video updates on patient conditions.

6. Medical Training Robots

Medical training robots offer realistic simulations for healthcare education. In the U.S., a robot named "Noel" is used to simulate childbirth. It can mimic the behavior of a woman in labor, including speech and screaming. Such training tools enhance the preparedness of obstetrics and gynecology teams by offering a lifelike platform to practice procedures and improve coordination during deliveries.