KR200371531Y1 - Medical Multi-module interface and storage system by using the USB - Google Patents

Abstract

The present invention relates to a multi-module interface configured as a computer-mountable and portable removable storage device for transmitting measurement data and control programs to a plurality of medical device sensor modules and a host computer. According to an aspect of the present invention, a medical multi-module interface and a storage device using USB are an interface and storage device for transmitting or storing communication data from a medical multi-module cradle capable of measuring one or more user's physical conditions to a host computer. A first interface unit for converting data measured from a medical multi-module cradle together with packet-based data and recently stored user's measurement data, transmission of digital measurement data transmitted from the interface unit and data of a user environment execution program stored in a storage memory And a second control unit which performs control, a second interface unit which transmits measurement data to a host computer through an external USB port according to a control signal from the first control unit, and data transmitted from the interface unit. Yueseubi according to the protocol and a second control unit for performing a data transmission and control.

Description

Medical Multi-module interface and storage system by using the USB}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical device, and in particular, a user can easily measure a state of health anytime, anywhere, and provide a host computer with an environment and a recently measured data for automatically setting an operating environment of a medical measuring device to a host computer. The present invention relates to a multi-module interface method capable of measuring a state. In general, an analog sensor signal is a process of transforming time-series analog information into a sampling frequency and quantizing it digitally so that one-dimensional signals can be transmitted in time. The information contained in this data becomes enormous, that is, several megabytes per second when the data of the sensor is digitized, for example, 8 bits (256 steps). If the analog sensor signal can be connected to a computer, various signal processing can be performed on the computer. The medical sensor module refers to a device that converts a biosignal into an electrical change amount, and includes an electrocardiogram monitor, a blood pressure monitor, a blood glucose meter, a body fat analyzer, an oxygen saturation monitor, an electronic stethoscope, and a lung function tester. When the output of the medical sensor module is converted into digital data instead of analog data, RS-232 communication, which is a kind of serial communication method, is input to the device of the present invention. The packet can be divided into a packet containing a reference synchronization signal and an error correction code and transmitted to the USB host computer using the USB device. At this time, the patient's past medical history data can be transmitted together to the USB host computer. The USB Special Interest Group (SIG) has proposed a bus that can control and transfer the smooth flow of digital data between the central processing unit (CPU) and external devices. It is used as a USB bus. The biggest advantage of the USB bus is that it can transfer digital data more than 12MB per second and more than 400MB recently, and it is easy and convenient to change the number of USB device recognition and addressing areas per device.

Looking at the configuration of the conventional medical diagnostic system interface device related to the home medical terminal of the domestic patent application 10-2001-0059154 as follows. 1 is a block diagram illustrating the structure of a conventional medical diagnosis system and a medical terminal.

As shown in FIG. 1, the medical diagnosis system aggregates medical data measured from the measuring device 100 and the measuring device 100 capable of checking at least one user's health state, and includes the user's health variables (general variables, physical) At home, the medical terminal 200 and the personal computer 300 capable of measuring all of the biochemical variables, etc. are basically configured. The measuring apparatus 100 includes an ECG 101, a blood pressure measuring instrument 102, a blood glucose meter 103, a body fat analyzer 104, an oxygen saturation measuring instrument 105, an electronic stethoscope 106, and an additional measuring instrument 107. Include.

In addition, the home medical terminal 200 is connected to the AC / DC power supply unit 201 and one or more measuring devices 100 for supplying DC power and AC power to convert the signal transmitted from the measuring device 100 into an interpretable signal. Analysis of the ECG signal measured by the ECG measuring device 101 among the amplified part 203 for amplifying the signal converted by the contact interface 202, the contact interface 202, and the amplified part 203, and The sub-controller 204 for controlling the signal transmission, the power supply is separated from the main power supply using a DC-DC conversion circuit, the separation unit 205 for separating the electricity so that the user is electrically safe, the measurement except the ECG meter The multiplexer 206 for multiplexing the signal amplified and transmitted from the device, the A / D converter 207 for converting the signal multiplexed by the multiplexer 206 into a digital signal, and the user's data are discriminated. The main control unit 208 for performing data transmission and control based on the data, the memory unit 209 storing the medical data determined by the main control unit 208, and the result of the medical treatment through a display window not shown to the user. A display unit 210 for displaying, a user selection mode processor 211 for detecting a user's selection of one or more modes through an external selection switch, and a universal asynchronous receiver transmitter (UART) controller and a universal serial bus (USB) controller It has a, and includes a connection controller 212 to support data exchange with the measuring device 111 and the personal computer 300. The memory unit 209 may store a plurality of user information and measurement results in the built-in memory, and may store the user's physical state measurement results in order.

In the interface unit for converting the measurement data transmitted from the measuring device 100 of the medical terminal 200 for processing the measurement data transmitted from the measuring device 100 capable of measuring one or more user's body state into the data that can be analyzed The conventional home medical care terminal 200 and the measuring device 100 configured as described above collects analog sensor signals together with an external cable or the like according to the sensor medium of the measuring device 100, and the home medical care terminal 200. It is supposed to connect to. If the amplification of the received medical data of the amplifying unit 203 by receiving the bio-signal data measured through the contact interface 202 of the at-home medical terminal 200 is amplified to noise under the influence of noise (pure medical treatment) Distortion of the data is a problem that prevents accurate discrimination and diagnosis. In addition, the A / D converter 207 should be designed to accommodate both the frequency characteristics and the signal transmission characteristics of the bio-signal data collected by the measuring device 100 during the digital conversion process in the home medical terminal 200. Ana according to each of the electrocardiogram (101), blood pressure meter (102), blood glucose meter (103), body fat analyzer (104), oxygen saturation meter (105), electronic stethoscope (106), additional meter (107) There is a difficulty in designing with sufficient log characteristics. Eventually, the home medical terminal 200 is interfaced with the personal computer 300 to utilize the personal computer 300 for the health information DB and the Internet access device, so that the home medical terminal 200 can be considered as a specific device that can be used as a remote medical system. It should be said that the level of confidence of the measurement at home medical terminal 200 is most important. In addition, not only the measurement test of the measuring device 100 but also the data conversion error of the home medical terminal 200 is the most important part in the reliability.

In reality, it is expensive for a user to purchase a specific device that can use the in-home medical terminal 200 system. In addition, there is a problem in that the correct medical treatment is not made when the user does not know the operation state of the complex device. Checking the measurement environment or the past measurement data DB of the at-home medical terminal 200 may be confirmed only at the server or the at-home medical terminal 200 to which the Internet is connected.

In order to solve such a problem, the technical problem to be achieved by the present invention is to enable the user to easily measure his or her health state anytime, anywhere to manage the state of health for a long time. In addition, the user can use the same user interface for the same state of measurement at all times, so that it can be conveniently used anywhere in homes, public institutions, hospitals, etc. where the medical multi-module cradle interfaced with the present invention system is installed. There is this. In addition, the user can perform the initialization of the same user interface and measuring device using the system of the present invention in order to enable self-measurement without the help of a measuring device person. In addition, the purpose of the present invention can be used to compare the degree of improvement of the current state of health by using the past measurement data as reference information at any time from the stored memory of the present invention. The purpose is to make it work.

1 is a block diagram of a conventional medical diagnosis system and a home medical terminal.

2 is a block diagram of a medical multi-module and a host computer interface according to an embodiment of the present invention.

3 is a flowchart of an operation process according to an exemplary embodiment of the present invention.

Hereinafter, a USB interface device 500 according to an embodiment of the present invention will be described with reference to the accompanying drawings. Medical multi-module cradle 400 that can measure the health of the user; USB Multi which is connected to the medical multi-module cradle 400 and serially communicates the initialization data or reference information data of the medical data measured from the medical multi-module cradle 400 or the modules of the medical multi-module cradle 400 selected by the user. An interface device 500; It includes a host computer 600 for calling a user-specific interface software program from the USB multi interface device 500 to receive, display or analyze the user's health variable data for remote transmission.

Medical multi-module cradle 400 is an electrocardiogram measurement module 401, blood pressure measurement module 402, blood sugar measurement module 403, body fat analysis module 404, oxygen saturation measurement module 405, electronic stethoscope module 406 ), An I / O controller 407, and a serial communication channel 408.

ECG (ECG) measurement module 401 is a device for measuring the electrical signal generated when the contraction of the heart muscle relaxes in the internal circuit (not shown) by connecting the electrode connected to the I / O controller 407 to the user's arm and leg Digital signal conversion of pure signal without noise.

The blood pressure (NIBP) measuring module 402 is a device for measuring blood pressure of a user, and connects a blood pressure cuff to the I / O controller 407 to measure systolic blood pressure, diastolic blood pressure, average blood pressure, and heart rate. Measure around the upper arm of the user. Analyze the pulse pattern after pressing.

Blood glucose measurement module 403 is a device for measuring blood glucose level for diagnosis and treatment of glucose, and inserts a strip of blood sugar into a blood glucose sensor, and drops a small amount of blood collected from a user. At this time, the voltage difference electrically reacting by flowing a microcurrent to the electrode is converted into digital data.

The body fat analysis (Bio-electric Impedence Analysis) module 404 is a device for measuring the ratio of fat components in the body components using the electrical resistance difference between muscle and fat of the components of the body, and provides diet-related information.

The Pulse Oxy-meter module 405 is a device for measuring a white drop of what is bound to oxygen in the total amount of hemoglobin in red blood cells to determine whether the amount of oxygen in the blood is appropriate. The oxygen saturation of the user is measured.

Electronic stethoscope module 406 is a device that performs the function of a stethoscope to measure the heart and lungs, and a microphone is placed on a certain portion of the user to convert the measured sound into digital data.

The I / O controller 407 has a built-in analog multiplexer (not shown) so that the ECG measurement module 401, blood pressure measurement module 401, blood glucose measurement module 403, body fat analysis module 404, oxygen saturation measurement It is connected to a sensor electrode or a connector such as the module 405, the electronic stethoscope module 406, and can select a specific measurement module according to the control signal.

Serial communication channel is asynchronous ECG measurement module 401, blood pressure measurement module 401, blood sugar measurement module 403, body fat analysis module 404, oxygen saturation measurement module 405, electronic stethoscope module 406 Each serial communication port has a built-in serial communication channel 408 is connected to the serial communication transceiver 501 of the USB multi-interface device 500.

As shown in FIG. 2, the USB multi-interface apparatus 500 includes a serial communication transceiver 501, an asynchronous serial communication controller 502, a baud rate generator 503, a parallel converter 504, and a main controller 505. And a USB controller 506, a USB transceiver 507, a storage memory 509, and a data memory 508.

The serial communication transceiver 501 is designed to easily exchange electrical signals of the RS-232 protocol, and compensates for the signal attenuation not occurring at a certain distance.

The asynchronous serial communication controller 502 performs a bidirectional transmission and reception protocol, and asynchronously transmits and receives data according to a start, end, and baud rate determination by a protocol that is specified between a transmitter and a receiver.

The baud rate generator 503 determines the bit rate of digital data transmitted per unit time during transmission and reception, and automatically divides the internal clock of the USB multi interface device 500 to generate a baud rate clock as the user determines the communication speed. .

The master controller 505 may control various data flows or generate packet data while controlling the USB controller 506 and the asynchronous serial communication controller 502 of the USB multi-interface device 500 and the medical multi-module cradle 400. It also serves to send and receive measurement data to the data memory 508 through the serial day communication controller 502, it is possible to exchange high-speed data with the host computer 600 through the USB controller 506.

The USB controller 506 performs a communication protocol according to the control command of the master controller 505 and transmits the packetized data to the USB transceiver 507.

The USB transceiver 507 is directly connected to the USB port of the host computer 600 and a cable or a port, and amplifies an electrical signal for transmission without distortion of transmission.

The power source 504 receives the input from the USB terminal of the USB multi interface device 500 from the USB port of the host computer 600, and directly converts and generates and uses the power source 504.

The storage memory 509 is a non-volatile memory that can be stored even when the power source is removed as a place where user interface control and environment execution programs or user's measurement data are stored.

The data memory 508 is used as a place to store temporary data for executing a program by the master controller 505 or transferring the data collected by the multi-module cradle 400 for arithmetic and medical purposes to the host computer 600. . When data is removed, all data is erased.

The host computer 600 of FIG. 2 is connected to the USB multi interface device 500 and the USB port, and may call the execution program of the USB multi interface device 500 or receive the latest measurement data of the user from the storage memory 509. And, it performs a function of analyzing the data collected by the medical multi-module cradle 400 to diagnose. It displays the received data or transmits it to the remote server or medical staff through the network.

3 is a flowchart illustrating an operation process step according to an embodiment of the present invention.

In the system initialization step, the user first performs a system initialization step by connecting (701) the USB multi-interface (500) device to the host computer (600). At this time, the USB controller of the USB multi-interface 500 device receives the USB bus power of the host computer 600 to generate a DC power used in the USB multi-interface 500 device from the power source 504, and stores the memory 509. The main controller 505 performs the initial program embedded in the. The host computer 600 detects the USB connection signal and performs the USB device recognition 702. When the main controller 505 recognizes that the USB multi-interface 500 device and the host computer 600 are connected, the main controller 505 of the USB multi-interface 500 device stores the storage memory 509 of the program memory. The user execution environment program in the specific area is executed by the binary code execution 704 of the host computer 600 via the USB controller 506. In addition, the host computer 600 performs an operation state initialization 706 of the user environment execution mode of the host computer 600. In addition, in order to perform the measurement module initialization 707 of the medical multi-module cradle 400, the operation state initialization data transmission (705) is performed to the USB multi-interface (500).

In the reference information setup step, the user interface environment transmission 710 of the USB multi-interface 500 is performed to perform the measurement module initialization 707 selected by the user of the medical multi-module cradle 400. In this case, the medical multi-module cradle 400 or the user interface display device of the host computer 600 initializes the measurement module that the user recently measured. For example, in the past, if the user only measured blood pressure and oxygen saturation concentration, the user environment setting program of the storage memory 509 would store only the blood pressure measurement module 402 and the oxygen saturation measurement module 405 as environmental variables. In the module selection 711, only the blood pressure measuring module 402 and the oxygen saturation measuring module 405 will be initialized. In addition, the display device of the host computer 600 will display or analyze only the personal medical diagnosis device configuration 712 also the blood pressure measurement module 402 and oxygen saturation measurement module 405. The USB multi-interface 500 not only transmits the user's measurement environment data but also transmits the recently measured health data to the host computer 600 or the medical multi-module cradle 400 to easily improve the health status of the user. Can be. Therefore, the USB multi-interface 500 not only configures the personal medical history data transmission 714 for the personal medical history database configuration 715 of the host computer 600 but also receives the past reference point data reception 713 on the medical multi-module cradle 400. to provide.

In the diagnosing and storing step, when the medical multi-module cradle 400 performs data packet transmission 721 to the serial communication transceiver 501 of the USB multi-interface 500 for measurement and data transmission through the serial communication channel 408. The device 505 temporarily stores and packetizes the data in the data memory 508 to perform medical data analysis 722 at the host computer 600 through the USB controller 506. In this case, the medical data display 723 may be performed and the medical data display 723 may be stored in the host computer 600 depending on whether the medical data transmission 724 is selected, or the reference data and the analysis data transmission 726 may be stored in the USB multi interface 500. May be stored 727 in memory 509

The present invention is free from temporal restraint because the user can always measure the state of health at a convenient time of the day, can be used in any place, free from spatial restraint, the state of health can be measured by the user himself or his family. It can be measured by medical staff such as nurses or nurses, or it can be presented to medical staff. It is equipped with a mobile storage memory to store, transmit and display past medical data together.It also has a built-in user interface program that allows the user to easily control the measuring device environment of the medical measuring module cradle. Easy to measure

In addition, when an emergency occurs, it can be detected early and can provide medical staff with the latest health status data most quickly.

In addition, it is possible to track and manage a long-term change in health status by managing the transmission and reception of various diagnostic information to the medical service provider using the present system.

Claims (5)

A first interface unit for communicating measurement data transmitted from the medical multi-module cradle capable of measuring one or more user body conditions A first control unit for performing data transmission and control of the digital measurement data transmitted from the interface unit and the user environment execution program stored in the storage memory. A second interface unit supporting transmission of measurement data to a host computer through a USB port according to a control signal from the first controller; A second control unit for performing data transmission and control of initial user environment setup data and measurement analysis data transmitted from the interface unit to a data memory; USB multi interface device comprising a. In claim 1, A power supply unit configured to generate a DC power by receiving a supply power supply through a USB bus; A data memory unit used as a place to exchange measurement data transmitted from the medical multi-module cradle and measurement and analysis data with a host computer; A storage memory unit for transferring the user environment execution program to the user or storing measured and analyzed data to the user; USB multi interface device comprising a. The method of claim 1, wherein the first interface unit A serial communication transceiver unit connected to one or more medical multi-modules to amplify and transmit digital communication data transmitted from the medical multi-module cradles into an electrical signal; An asynchronous serial communication controller for converting and controlling serial data transmitted and received by the serial communication transceiver into data by an asynchronous transmission protocol; USB multi interface device comprising a. The method of claim 1, wherein the second interface unit A USB bit transceiver connected to the host computer via a USB port or a cable to satisfy a USB specification and to amplify a signal; A USB controller unit for converting and controlling the serial data transmitted and received by the USB transceiver using a USB transmission protocol; USB multi interface device comprising a. The method of claim 3, wherein the asynchronous serial communication controller A baud rate generator for generating a reference clock according to a communication speed selected by a user in order to perform the asynchronous serial communication; USB multi interface device including