Nowadays, medical is developing rapidly. More attention is paid to medical image. PACS transfers image material, which is got from medical devices, into digital forms, and realized functions like image capture, storage, management, process and transmission. It helps to manage and use the image material effectively which contributes to the wide use of ultrasound imaging workstation, CT image workstation, X-ray image workstation, and NMR image workstation. The key of the system is to capture images from type-B ultrasonic, CT, X-ray machine, NMR, endoscope and other medical devices and present the captured image to doctors for their reference and judgment.

About standard video capture card for type-B ultrasonic and endoscope, there are various kinds of products in the market with different qualities and prices, which makes it really hard for users to choose. They can only borrow cards to test the quality. They waste a lot of time and energy. It is even harder for users to choose models for non-standard CT, X-ray machine or NMR. The requirements are hard to achieve, which makes it different to develop. It calls for fine image quality, and the price for such cards is expensive. Users can only get such cards by importing or they can only find a few sellers in the domestic market. Their choice is restricted, and the cost is hard to be reduced. On the other hand, the parameters of medical devices are sometimes uncertain with different models. All these issues bring headache to customers and even bring huge lose due to pending projects.