Method and system for constructing modular medical instrument based on USB HUB

Abstract

The invention relates to a method and a system for constructing a modular medical instrument based on USB HUB. The method comprises the following steps: each functional circuit adopts modular design, independently adopts a microprocessor and has the functions of independent AD conversion and USB communication control; each functional module is connected with a USB HUB module which has an electrical safety isolation function through a USB bus; and the USB HUB module is connected with a central console (PC) or server hardware through the USB bus, and connected with a special software platform based on the PC to form a complete medical instrument system. The method can realize high reliability and easy maintenance of the medical instrument, and the flexible expandability of the functions of the medical instrument, change the mode that the functions of the medical instrument are set by manufactures and can not be modified by a user, lead the user to be capable of randomly combining (increase or decrease) the functional modules according to specific detection requirements, and realize the personalized physiological parameter detection function and the function expansion of the medical instrument by USB topological structure.

Description

Technical field [0001] The invention relates to a medical instrument construction method and a medical system constructed according to the method, in particular to a USB HUB-based modular medical instrument construction method and system, belonging to the field of medical electronic instruments. Background technique [0002] Universal Serial Bus (USB) has become the most widely used communication connection standard with the advantages of low price, high speed, flexible expandability and high integration design. In addition to common PC-side applications, Universal Serial Bus USB as a data communication interface is used in more and more fields. At present, the USB interface data communication method has gradually entered the field of medical equipment. [0003] Chinese patent 02289498.5, titled "USB-based multi-channel AD collector", discloses an improvement to the original AD data collector based on ISA interface. The collector mainly includes a USB interface circuit connected ...

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Problems solved by technology

However, this utility model still has the disadvantages of needing an external physiological signal detection circuit and not adopting electrical safety isolation measures

The Chinese patent application number is: 200510013384.1, and the name is: "Multiple Physiological Parameter Detection System Based on USB", which discloses a physiological parameter detection system based on USB bus for data transmission and communication control. The patent application uses signal and power Isolation technology ensures the safety of use, and can realize the detection of ECG, blood pressure, blood oxygen, respiration, and body temperature signals; its disadvantage is that the acquisition and control of all physiological signals depends on a single microprocessor. Failure, the detection of all parameters will not be carried out normally, the reliability is poor, and it is not easy to maintain, and the system cannot realize the expansion of detection parameters and realize the individualized physiological parameter detection function according to specific detection requirements

[0004] The functions of existing medical instruments are set by the manufacturer and cannot be modified by users, and the functions of medical instruments cannot be expanded according to specific needs. Detection instruments can only detect fixed types of physiological parameters, and diagnostic instruments can only perform fixed types of image diagnosis. Therapeutic instruments can only perform fixed types of treatment. Clinically, many different instruments are often used at the same time, which brings mutual interference between instruments, increases the complexity of power management, and increases the cost of purchasing medical equipment for hospitals. cost, while increasing the medical burden of patients

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