SU1664115A3 - Device for executing etiologic diagnosis and medicamental test - Google Patents

Abstract

The invention relates to medical technology and allows reducing the time for examination and increasing the reliability of diagnostics. The signal from testing circuit 1 is fed to the input of the conductivity meter 2, the signal level of which is measured by the measuring device 3. From the output of the meter 2, the signal is fed to the input of the controlled memory unit 4, where it is stored. The signal level in block 4 is measured by the measuring device 5. Information from block 4 is fed to the program-recording block 6, where it is processed according to the corresponding program on the microcomputer. 4 hp f-ly, 5 ill., 1 tab.

Description

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The invention relates to medical technology, namely, devices for measuring electric-skin conductivity and evaluating an organism's response to substances.

The purpose of the invention is to reduce the time of examination and increase the reliability of diagnosis.

Figure 1 shows the block diagram of the device; Fig. 2 is a functional diagram of a controllable memory block; FIG. 3 is a functional block diagram of a logic block; figure 4 is a functional diagram of the software-recording unit; figure 5 - the algorithm of the microcomputer software recording unit in the diagnosis.

The device contains a testing circuit 1 connected to the conductivity meter 2, which contains the second measuring device 3. The control unit 4 of the memory with the measuring device 5 is connected to the meter 2 and the program-recording unit 6. The unit 4 contains serially connected logic unit 7, the first a key 8, a memory cell 9 and a second key 10. Block 7 contains a serially connected differentiator 11, a first detector shaper 12, a trigger 13, an AND circuit 14 and a serially connected threshold circuit 15, a radial oscillator 16, an inverter torus 17, the output of which is connected to the second input of the circuit AND 14, as well as the second detector-shaper 18 connected between the differentiator 11 and the trigger 13. The block 6 contains a series-connected null organ 19, the ADC 20 and the microcomputer 21 with the control panel 22 , a display unit 23 and a registration unit 24.

The device works as follows.

The microcomputer ROM 21 contains diagnostic programs, the architecture of the studied body parts and the topography of the points where measurements are to be taken. Before the study from the console 22, the program and the scope of the study are set by the operator. Microcomputer 21 at block 23 reflects the architecture of the studied body part and the topography of the point at which measurements are to be made. The physician, by means of circuit 1 and meter 2, performs a measurement, which is displayed on device 3. At the same time, the signal from the output of meter 2 goes to block 4, which runs on the algorithm shown in the table.

The operation of the device according to this algorithm allows the physician to evaluate the measurement values from one touch to another and from one point to another, and the manipulation with search electrode X.X., I, K.3. allow

enter information into the microcomputer 21, do not refer to the console 22 and make a preliminary medical evaluation of the measurement on the device 5.

The unit 4, which implements this algorithm, additionally provides for the galvanic isolation of the patient from the unit 6, which is supplied from the alternating current network, thereby achieving the necessary electrical safety requirements,

Block 4 works as follows (figure 2). The signal from the output of the meter 2 goes to block 7, which, according to the logic inherent in its operation, provides the connection of cell 9 via key 8 to the output of meter 2 or to block 6 through key 10. Switching logic of keys 8 and 10 is such that if the key is closed, the other is open, which results in the absence of galvanic

0 connection between circuit 1 and block 6 at the time of recording the value of conductivity at the last. Unit 7 can be performed, for example, according to the scheme shown in FIG. When you touch the search electrode skin

5, the signal at the output of the meter 2 always goes from O, for example, to a positive value, i.e. at the output of the differentiator 11, a positive impulse is formed, and when the search electrode is disconnected

0 from the skin surface is a negative impulse, since the signal value changes from positive to O.

Passing the signal from the output of the differentiator 11 through the detectors-drivers

5 12 and 18, one of which transmits positive impulses, and the other negative, they form at their outputs the normalized impulses corresponding to the logical G. Signals with

The 0 outputs of the detector-formers 12 and 18 are fed to the inputs of the O installation and 1 of the flip-flop 13, the signal from the output of which through the block 14 is fed to the control input of the first key 8. At the CZ. of the electrodes, the signal at the output of the meter is maximum, and the threshold circuit 15 is activated, the setpoint of which is selected with a technological variation of the maximum value. A single vibrator 16 generates a pulse

0 of a predetermined duration, which is necessary to rewrite the signal from cell 9 to block 6. At the time the signal is written to block 6, the circuit 14 from the inverter receives a switch to prohibit key closure 8. Cell 9 of the 5 memory can be made with a storage capacitor.

Information input into microcomputer 21 is controlled by the null organ 19 and the A / D converter 20. When the key 10 is closed, the null organ 19 is triggered, which generates a control signal on the A / D converter 20 to enter information into the microcomputer 21.

When conducting a drug test, the doctor, after selecting a drug, enters it through the console 22 into the microcomputer 21 and, based on this information, provides recommendations for the therapy on the algorithms.

Claims (5)

1. A device for conducting an etiological diagnosis of a drug test, comprising a test circuit connected to an electrical conductivity meter, characterized in that, in order to shorten the examination time and to increase the diagnostic accuracy, it contains a controlled memory block whose input is connected to the output of the electrical conductivity meter, and the output is to the input of the program-recording unit. 2. Pop-up device. Distinct, since the controllable memory unit contains serially connected first key, a memory cell, the output of which is connected to the measuring device, and a second key, the output of which is the output of the controlled memory unit, the input of which is the input of the first key connected to the input of the logic unit, the first output of which is connected to the control input of the first key, and the second output to the control input of the second key. and Note. I - contact of the search electrode with the skin; H.H. - search electrode in the air (idle), - KZ, - short circuit search and indifferent electrodes; And - the value of electrical conductivity at point A; B - the value of electrical conductivity at point B. ten 15 20 25 thirty 3. The device according to claim 2, characterized in that the logic block comprises a serially connected differentiator, a first detector shaper, a trigger and an AND circuit, the output of which is the first one of the logic block output, and the serially connected threshold circuit whose input is connected to the input of the differentiator and is the input of the logic block, the one-oscillator, the output of which is the second output of the logic block, and the inverter, the output of which is connected to the second input of the AND circuit, as well as the second detector-driver connected between the output of the differential Operations and the second input of flip-flop 4. Pop-up device 1 characterized in that the program-recording unit contains an analog-to-digital converter, the input of which is the input of the program-recording unit, and the output is connected to the input port of the microcomputer with display and registration control means, and the input of which is connected to the input of the analog-digital converter, and the output to the control input of the analog-digital converter. 5. Device pop. 1, characterized by the fact that the output of the conductivity meter is connected to the second measuring device. eight SCH. I 0s ten Fig.Z FIG. four G STARTED J Setting or selecting a scope and research program Outputting a signal to the display unit of the topography point of the puncture point Record the value of electrical conductivity Analysis of the need to change the research program Issue W write cycles Calculation of results, diagnosis, information output t (END 3 5