Design of hospital surgery video monitoring and broadcast teaching system

The VC3 video monitoring and broadcasting teaching system is a video communication system based on IP network, which integrates the functions of video on-site monitoring, real-time two-way video interaction, video storage sharing, remote video browsing, etc. Through this system, not only remote surgical observation and teaching can be realized, but also remote guidance can be realized.

1. Real-time remote surgical instruction

Surgical demonstration is a necessary means for hospitals to conduct clinical teaching. However, in order to improve the quality of surgery and reduce the infection rate of surgery, hospital operating rooms have formulated indicators for the number of observers in the operating room and strictly control the number of people entering the operating room. This has greatly reduced the opportunities for interns to learn and observe surgery, which is not conducive to improving the quality of interns' learning. The VC3 video monitoring and broadcasting teaching system allows the surgical process to be observed on a large screen outside the operating room for real-time teaching, thus getting rid of the time, space and number of limitations of the traditional teaching mode, while improving the safety factor of the teaching system.

2. Storage and query of surgical videos

The whole process of surgical images and scene videos are recorded in real time, and stored for a long time with high quality for future teaching. For some controversial surgeries, these video materials can be used as the basis for scientific judgment. After the operation, academic discussions and research can be carried out by comparing these image materials, which can effectively improve the doctor's surgical level.

3. Real-time photography of the surgical site

The key actions in the teaching process are recorded by shooting. The pictures taken are saved as JPG files and can be transferred for further analysis. Learners can download these pictures for study and use.

4. Remote consultation with experts

Experts do not need to enter the operating room. They can watch the high-definition images of the operation in real time in the observation room, and work with the on-site doctors to diagnose the patient and provide surgical guidance. When the on-site operation is more complicated, surgical seminars can be held through teaching terminals with the help of the Internet to solve difficult surgical problems in a timely manner.

In addition, the system allows the observation position of the scene image to be pre-set, and the observation point can be quickly changed during the learning process. It can also use the wireless network to temporarily set up teaching points in emergency situations or major operations without the need for rewiring.

System Structure

The surgical video monitoring and broadcasting teaching system is structurally divided into four subsystems: operating room subsystem, surgical teaching subsystem, switching control center subsystem, and network subsystem. The structure of the overall system is as follows:

Operating room subsystem

The operating room subsystem is a system for digital image acquisition and encoding. Each operating room has two video channels, which use surgical field cameras and panoramic monitoring cameras for image acquisition. At the same time, an omnidirectional pickup microphone is used to transmit the surgeon's voice and the voice of the entire operating room to the teaching end in real time through the network to complete the teaching process.

Surgery teaching subsystem

The surgical teaching part includes a teaching terminal, a voice microphone and a display system, which can be used for group teaching. The teaching terminal has two-way audio and video encoding and decoding capabilities, which encodes the analog audio and video signals collected on site, decodes the digital audio and video data received from the network, and restores them to analog video signals for output to the user's projector, large-screen TV and other display devices. The voice microphone is used to reproduce the on-site voice environment in the clinic and communicate with the doctors in the clinic.

Switching control center subsystem

The equipment of the switching control center includes monitoring and dispatching servers, streaming media forwarding servers, and video recording servers. The monitoring and dispatching server is the core equipment of the switching control center. Its main functions are to complete user identity authentication, terminal address resolution, business function logic scheduling control, and user level and authority setting management, etc. The main function of the streaming media forwarding server is to realize the functions of video forwarding and protocol translation, realize application layer multicast, improve the efficiency of response access, etc. The main function of the video recording server is to record multi-channel remote monitoring images and sounds, and can query, retrieve and replay them at any time.

Network subsystem

The network system is the hub of the entire learning system. All videos, voices, and data are transmitted end-to-end through network equipment, which can generally be achieved using the existing network system.