JPH0663786B2 - Anesthesia recording paper automatic entry device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an anesthesia recording paper automatic writing device for writing a graphic in a recording area of anesthesia recording paper.

2. Description of the Related Art In general, anesthesia recording paper is used for recording a patient's condition and medical treatment in an operation involving anesthesia, and the recording may be performed according to a predetermined format even if different hospitals are used. Many. On such anesthesia recording paper, a recording area is defined by printing, and in this recording area, a predetermined figure such as a diagram, a symbol, a character or the like showing a trend of biological information such as a blood pressure value or a drug administered. Are to be entered in chronological order. In the recording area, usually, a plurality of printed lines indicating time and measured values intersect each other like rectangular coordinates, and a plurality of printed lines are drawn respectively. The value is read. In this way, in the anesthesia recording paper, since the recorded time and measured value are read with the printed line as a reference,
Since the misregistration affects the time and the reading accuracy of the measured value, it is desired to prevent the graphic writing position from being displaced as much as possible due to the expansion and contraction of the paper, the variation in the cutting dimension, and the like.

On the other hand, as described in JP-A-55-43678, the expansion / contraction amount in the Y direction of the recording paper sent in the X direction by the sprocket of the drum is measured, and the drive data is calculated based on the expansion / contraction amount. Correcting XY plotters have been proposed.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, when an anesthetic recording paper and a recording area are to be automatically filled with figures by using the above-mentioned XY plotter, the recording area which changes due to expansion and contraction of the paper The size of the anesthesia recording paper can be accurately grasped and entered so that it does not deviate from the preprinted printing line, but the amount of expansion / contraction of the anesthesia recording paper is determined by detecting the edge of the anesthesia recording paper. However, there is a drawback that the writing position is deviated from the printing line in the recording area because the variation of the cutting dimension is included in the calculation of the expansion and contraction amount. If the expansion / contraction amount is calculated only in one of the X and Y directions of the anesthesia recording paper and the calculated value is applied to the other direction, the expansion / contraction amount in the X and Y directions of the anesthesia recording paper is calculated. Since they have different properties from each other, there is a drawback in that a deviation from the printed line in the recording area occurs in the other direction.

Means for Solving the Problems The present invention has been made in view of the above circumstances, and the gist thereof is to provide a recording area so that the recording area is relatively movable with respect to the anesthesia recording paper preprinted. It is provided with a designated writing section, and a drive device for relatively moving the writing section and the anesthesia recording paper, and by moving the writing section relatively by the driving device, a desired figure is formed in the recording area of the anesthesia recording paper. An anesthesia recording paper automatic filling device of a type to be filled in, comprising: (a) a recording paper position sensor for detecting lines to be detected which are respectively printed in advance on the anesthesia recording paper at a predetermined distance in the X and Y directions. (B) The actual distances in the X and Y directions of the detected line detected by the recording paper position sensor are calculated, and the anesthesia recording paper of the anesthesia recording paper is calculated based on the actual distances and the dimensions stored in advance. An expansion / contraction state determining means for determining the actual expansion / contraction state in the X and Y directions, and (c) expansion / contraction of the anesthesia recording paper based on the actual expansion / contraction state of the anesthesia recording paper determined by the expansion / contraction state determining means. Correction means for correcting the drive signal supplied to the drive device so as not to cause the writing position shift due to the above.

By doing so, the detection lines previously printed on the anesthesia recording paper at a predetermined distance in the X and Y directions are detected by the recording paper position sensor, and the expansion / contraction state determining means detects the detection lines. The actual distances in the X and Y directions are calculated, and the actual expansion / contraction state of the anesthesia recording paper is determined for the X and Y directions based on the actual distances and the dimensions stored in advance. Based on the actual expansion / contraction state of the anesthesia recording paper, the correction means corrects the drive signal supplied to the drive device so that the writing position displacement due to the expansion / contraction of the anesthesia recording paper does not occur.

Effect of the invention Therefore, since the amount of expansion and contraction of the anesthesia recording paper is not determined by detecting the edge of the anesthesia recording paper, the variation in the cutting dimension of the anesthesia recording paper is not included in the calculation of the expansion and contraction amount, and the graphic is printed on the printed line in the recording area. The deviation is eliminated. Further, since the expansion / contraction amounts in the X direction and Y direction of the anesthesia recording paper are calculated, even if the expansion / contraction amounts in the X direction and Y direction of the anesthesia recording paper are different from each other, in the X direction and the Y direction of the recording area. It is suitably corrected, and the deviation from the printed line in the recording area is eliminated.

Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a system configuration of an anesthesia recording paper automatic insertion device including an XY plotter 22 which is an embodiment of the present invention, and 10 is a multifunctional automatic blood pressure monitor equipped with an electrocardiograph. . Electrodes 12 and cuffs 14 are connected to the automatic sphygmomanometer 10 in which biometric information of the person to be measured, such as maximum and minimum blood pressure values, pulse rate, respiration rate, etc., in response to a periodic or manual input operation. Is automatically measured, and a signal representing the measured value is output from the automatic sphygmomanometer 10 to the control device 16. The control device 16 determines the recording position in the two-dimensional diagram recording area 20 provided at a predetermined position of the anesthesia recording paper 18 based on the input signal, and writes it in the XY plotter 22 every time the input signal is supplied. Let Note that the control device
16 may be provided integrally with the automatic blood pressure monitor 10 and the XY plotter 22. The anesthesia recording paper 18 is for recording the trend of the biological information of the measurement subject during anesthesia and the medicines administered, and is positioned on two sides (two edges).
A two-dimensional diagram recording area 20 is provided at a fixed location. Then, in the two-dimensional chart recording area 20, sections composed of printed lines at regular intervals are usually printed. For example, as shown in FIG. 2, the horizontal axis 78 is the time axis and the vertical axis 76 is the blood pressure. It is used as an axis showing measured values such as values. Further, as shown in FIG. 3, the outer peripheral portion of the anesthesia recording paper 18 is detected to detect the position of the anesthesia recording paper 18 and to determine the expansion / contraction of the anesthesia recording paper 18 in the X direction and the Y direction. Function as a detected line to be detected. A frame line 21 consisting of two parallel lines separated in the X direction and two parallel lines separated in the Y direction
Is printed.

As shown in detail in FIG. 3, the XY plotter 22 includes a mounting table 24 on which the anesthesia recording paper 18 is mounted, and a moving table 28 which is driven and positioned in the X direction by the X direction pulse motor 26. , A guide rod provided on the moving base 28 in a direction (Y direction) orthogonal to the moving direction (X direction) of the moving base 28.
Guided in the Y direction by 30 and Y direction pulse motor 32
Entry Positioned by Carriage 34
And a writing pen 38 provided on the carriage 34 and moved up and down by an up-and-down solenoid 36. A positioning plate 37 for accurately positioning the anesthesia recording paper 18 to a predetermined fixed position is fixed to the mounting table 24, and the anesthesia recording paper 18 is mounted on the mounting table 24 as necessary. An air suction means or an electrostatic adsorption means for fixing is used. Further, on the side surface of the XY plotter 22, there is provided a mode changeover switch 39 for changing over to an automatic correction mode for preventing a writing position shift due to expansion and contraction of the anesthesia recording paper 18.

At the bottom of the carriage 34, as shown in FIG.
A recording paper position sensor 40 for detecting the frame line 21 printed on the edge of the anesthesia recording paper 18 is provided. The recording paper position sensor 40 is a light emitting element that emits light toward the recording paper 18.
42 and a light receiving element 44 that receives the reflected light from the recording paper 18, and when the light from the light emitting element 42 is reflected by the recording paper 18 and received by the light receiving element 44, the frame line changes due to the change in the reflected light. 21 is being detected. Therefore, the position sensor 40 detects the actual dimension between the two sides of the frame line 21.

Further, the XY plotter 22 is provided with the control circuit shown in FIG. In the figure, the drawing signal SD supplied from the control device 16 to the input port 48 represents the entry position and the symbol to be entered in the two-dimensional diagram recording area 20, and the CPU 50 uses the storage function of the RAM 52. A drive circuit that processes an input signal according to a program stored in advance in the ROM 54 and supplies drive power to the X-direction pulse motor 26 so that the symbol indicated by the input signal is written by the pen 38 at the writing position indicated by the input signal. 56, Y direction pulse motor 32
A drive signal is supplied to a drive circuit 58 that supplies drive power to the drive circuit 60 and a drive circuit 60 that supplies drive power to the upper and lower solenoids 36.
The signal from the light receiving element 44 is sent to the discriminator 46 via the amplifier 45.
Is supplied to. The discriminator 46 determines whether or not the amount of received light has become smaller than a predetermined constant value. Frame border
Since the amount of reflected light decreases when 21 passes, the frame line 21 is detected by the discriminator 46 and a detection signal is output to the CPU 50.

The control operation of the XY plotter 22 will be described below with reference to the flowchart of FIG.

First, by executing step SX1, the preset interval x ₁ between the frame lines 21 orthogonal to the X direction (left and right direction in FIG. 3) is read, and by executing step SX2 in advance. The set interval y ₁ between the frame lines 21 orthogonal to the Y direction (vertical direction in FIG. 3) is read. These intervals are reference values determined by the printing pattern of the anesthesia recording paper 18, and are set and input in advance by a key or the like and stored. The entry position represented by the drawing signal SD supplied from the control device 16 is determined on the assumption that the stretched state of the anesthesia recording paper 18 is at the above set value.

Then, Carriage 3 is executed by executing Step SX3.
4 is driven in the X direction (left and right direction in FIG. 3) over the entire span to detect the position of the frame line 21 orthogonal to the X direction,
Their actual spacing x ₀ is calculated and stored. Further, by executing step SX4, the carriage 34 is driven in the Y direction (vertical direction in FIG. 3) over the entire span, and the actual position of the frame line 21 orthogonal to the Y direction is detected. The distance y ₀ is calculated and stored.

Then, step SX5 is executed and the correction coefficient Kx in the X direction is
And the correction coefficient Ky in the Y direction is calculated according to the following equations (1) and (2). This correction coefficient represents the relationship between the actual intervals x ₀ and y ₀ and the set intervals x ₁ and y _1, and indicates the expansion / contraction state of the anesthesia recording paper 18.
Therefore, the above steps SX3, SX4, SX5 correspond to the expansion / contraction state detecting means of this embodiment.

Kx = x ₁ / x ₀ (1) Ky = y ₁ / y ₀ (2) At the subsequent step SX6, is the drawing signal SD from the controller 16 input to the input port 48? It is determined whether or not. Drawing signal SD
If it is determined that the correction coefficient K has not been input, step SX7 is executed, so that the correction coefficient K
It is determined whether or not a predetermined fixed time, for example, 10 minutes has elapsed since the calculation of x and Ky. If it is determined that the predetermined time has not passed, step SX6 is executed again to make it stand by, but if it is determined that the predetermined time has elapsed, steps SX3 and thereafter are executed again. When it is determined in step SX6 that the drawing signal SD is input while these steps are repeatedly executed, step SX8 is executed to determine whether or not the automatic correction mode is set, that is, the anesthesia chart paper 18 is expanded and contracted. Whether or not the drive signal is corrected in order to prevent the displacement of the entry caused by the above is determined according to the operation position of the mode changeover switch 39.

When it is determined that the automatic correction mode is not set, the drawing is directly executed in step SX10. However, if it is determined that the automatic correction mode is set, the drive signal is corrected in step SX9, and then the drawing is executed in step SX10. In step SX9 above, the controller 1
The entry position represented by the drawing signal SD supplied from 6 and the entry trajectory of a line for drawing a symbol are calculated, and the correction coefficient Kx and the correction coefficient Kx and The amount of movement actually moved is calculated by multiplying Ky, and a drive signal for obtaining the amount of movement actually moved is newly determined. That is, the drive signal for supplying to the drive circuits 56 and 58 is supplied with the anesthesia recording paper 18
It is corrected according to the expansion / contraction state of. Therefore,
The above step SX9 corresponds to the correction signal of this embodiment. Then, in step SX10, the drive signal determined in step SX9 is the drive circuit 56, the drive circuit 58, the drive circuit
By sequentially outputting to 60, writing by the pen 38 is automatically executed.

Thus, in the XY plotter 22 of this embodiment,
The recording paper position sensor 40 detects the actual interval between the two opposite sides of the frame line 21, and the actual expansion / contraction state of the anesthesia recording paper 18 is determined based on the actual interval and the previously stored interval. It is determined by obtaining the correction coefficient. Then, each drive signal for driving each pulse motor 26, 32 is corrected based on the correction coefficient so that the writing position shift due to the expansion and contraction of the anesthesia recording paper 18 does not occur. Therefore, in this embodiment, since the edge of the anesthesia recording paper 18 is not detected to determine the expansion / contraction amount of the paper, the variation of the cutting dimension of the anesthesia recording paper 18 is not included in the calculation of the expansion / contraction amount, and the two-dimensional diagram recording is performed. The displacement of the figure in the area 20 with respect to the printed line is eliminated. Further, since the expansion and contraction amounts of the anesthesia recording paper 18 are calculated in the X and Y directions, even if the expansion and contraction amounts of the anesthesia recording paper 18 in the X and Y directions are different from each other, the X and Y directions of the recording area are different. The correction is suitably performed in the direction, and the deviation from the printed line in the two-dimensional diagram recording area 20 is eliminated.

The control unit 16 has an I / O port as shown in FIG.
62, CPU64, ROM66, RAM68, clock circuit 70, start / stop push button 7
It is equipped with an input console 74 having 2 etc., a CPU
Reference numeral 64 denotes a program stored in advance in the ROM 66 while utilizing the storage function of the RAM 68, that is, a signal for processing an input signal according to the flowchart shown in FIG. To the XY plotter 22. As a result, on the time axis (horizontal axis 78) in the two-dimensional diagram recording area 20, for example, a symbol indicating a blood pressure value as shown in FIG. 2 and other symbols are sequentially written, and the trend of biological information is displayed. It The flowchart shown in FIG. 8 shows a control routine executed by pressing the start / stop push button 72. This control routine is executed by pressing the start / stop push button 72 next. Is stopped.

The embodiment of the present invention has been described above with reference to the drawings.
The present invention can be applied to other aspects.

For example, in the above-described embodiment, the correction coefficients Kx and Ky are obtained at fixed time intervals, but they may be obtained at each input of the drawing signal SD prior to actual drawing.

Further, since the recording paper position sensor 40 only needs to detect preset positions on the anesthesia recording paper 18 with a certain distance therebetween, it is possible to detect a preprinted mark in addition to the frame line 21. You can

Further, although the control circuit shown in FIG. 5 was provided in the XY plotter 22 of the above-described embodiment, the control device 16 controls the X direction pulse motor 26, the Y direction pulse motor 32, and the up / down solenoid.
The 36 may be controlled directly.

The above description is merely an example of the present invention, and the present invention can be variously modified without departing from the spirit thereof.

[Brief description of drawings]

FIG. 1 is a diagram showing a system configuration of an automatic recording sheet filling apparatus including an embodiment of the present invention. FIG. 2 is a diagram showing a two-dimensional diagram recording area provided at a predetermined position on the anesthesia recording paper used in the embodiment of FIG. FIG. 3 is a plan view showing the structure of the XY plotter which is the embodiment of FIG. Fourth
The drawing is a view for explaining the configuration of a recording paper position sensor provided on the XY plotter of FIG. FIG. 5 shows X- in FIG.
It is a control circuit diagram of a Y plotter. FIG. 6 is a flow chart for explaining the operation of the control circuit of FIG.
FIG. 7 is a block diagram showing the configuration of the control device in the recording paper automatic entry device of FIG. FIG. 8 is a flow chart for explaining the operation of the control device of FIG. FIG. 9 is a diagram corresponding to the claims of the present invention. 18: Anesthesia recording paper (recording paper) 21: Frame line (detected line) 22: XY plotter (XY recording device) 26: X direction pulse motor (driving device) 32: Y direction pulse motor (driving device) ) 34: Carriage (entry section) 40: Recording paper position sensor

Claims (3)

[Claims] 1. A writing unit provided with a recording area that is movable relative to an anesthesia recording paper preprinted, and a drive device that relatively moves the writing unit and the anesthesia recording paper. An anesthesia recording paper automatic writing device of a type in which a desired figure is written in a recording area of the anesthesia recording paper by relatively moving the writing unit by the driving device, in the X direction and the Y direction on the anesthesia recording paper. A recording paper position sensor that detects the detected lines that have been printed in advance at a certain distance, and the actual distances in the X and Y directions between the detected lines that are detected by the recording paper position sensor are calculated. An expansion / contraction state determining means for determining the actual expansion / contraction state of the anesthesia recording sheet in the X direction and the Y direction based on the actual distance and the dimensions stored in advance, and the expansion / contraction state determining means. Correction means for correcting the drive signal supplied to the drive device based on the actual expansion / contraction state of the anesthesia recording paper so that the writing position shift due to the expansion / contraction of the anesthesia recording paper does not occur. Anesthesia recording paper automatic filling device. 2. The expansion / contraction state determining means determines the expansion / contraction state of the anesthesia recording paper prior to writing on the anesthesia recording paper or at regular time intervals within the writing period. The anesthesia recording paper automatic entry device according to item 1. 3. The detection line is composed of a quadrangular frame line composed of two parallel lines separated in the X direction and two parallel lines separated in the Y direction, and the expansion / contraction state determining means is The anesthesia recording paper automatic entry device according to claim 1 or 2, which calculates the distance between the two parallel lines.