JP2008100124A - Centrifuge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a centrifuge capable of visually recognizing whole of step operation and preventing erroneous input of step operation conditions. <P>SOLUTION: The centrifuge is provided with: a motor; a rotor driven by the motor; a key input part inputting the operation conditions for centrifuging samples contained in the rotor; a display part displaying the operation conditions; and a control part having a random access memory part. When performing continuous step operation in multistage operation conditions, after inputting the step operation conditions by the key input part, the step operation conditions are displayed on the display part in a line graph with the rotation speed as the ordinate and the operation time as the abscissa. Color is changed for a part where the operation has been finished on the line graph displayed on the display part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a centrifuge for centrifuging a sample by rotating a rotor containing a sample at a predetermined speed for a predetermined time.

  For example, since centrifuges for genes and the like require complicated processing, the centrifuge may not only perform centrifugation under a single operating condition, but also perform a centrifugal separation by combining a plurality of operating conditions. . In a conventional centrifuge, a method of operating by combining a plurality of operating conditions is referred to as “step operation”, and the plurality of operating conditions are stored in advance in the centrifuge.

  As a method for storing operation conditions in the step operation, there is a method of providing a region for storing a plurality of operation conditions (hereinafter referred to as “memory region”) and storing operation conditions of up to 9 steps in one memory region. It has been adopted. In this method, rotation speed, operation time, holding temperature, acceleration gradient, deceleration gradient, etc. are stored in one step operation condition.

When performing step operation in a conventional centrifuge, the memory No. The operation condition is recalled from the memory area by specifying the memory No. And the current step No. And end step no. Is displayed. In recent years, in order to improve the usability of the centrifuge, a color display with a touch panel function having an input function has been adopted.
JP 2000-301029 A

  However, in conventional centrifuges, step operation conditions (rotation speed, operation time, holding temperature, acceleration gradient, deceleration gradient, etc.) are input step by step as shown in FIG. Since this method was adopted, there was a problem that errors in input digits (rotational speed input unit and operation time input unit) were likely to occur.

  In addition, when the centrifuge is operated by step operation, the memory No. that is called during operation is not stored. And the current step No. Since only the display is displayed, it is impossible to visually recognize the progress of the step operation among all the step operations, and it is impossible to visually grasp the remaining operation time.

  The present invention has been made in view of the above problems, and the purpose of the process is to provide a centrifuge capable of visually recognizing the entire step operation and preventing input errors in the step operation condition. It is to provide.

  In order to achieve the above object, the invention described in claim 1 includes a motor, a rotor that is rotationally driven by the motor, and a key input unit that inputs operating conditions for centrifuging the sample stored in the rotor. In a centrifuge having a control unit having a display unit for displaying an operation state and a readable / writable storage unit, when performing a step operation in which the operation is continuously performed in a plurality of stages of operation conditions, a step operation condition is determined by the key input unit. The step operation condition is displayed on the display unit, a line graph with the rotation speed on the vertical axis and the operation time on the horizontal axis.

  According to a second aspect of the present invention, in the first aspect of the present invention, the color of the portion where the operation on the line graph displayed on the display unit has elapsed is changed.

  According to the first aspect of the present invention, when the step operation of the centrifuge is performed, the step operation condition input by the key input unit is displayed as a line graph on the display unit. It is possible to visually recognize the whole picture of step operation and to prevent input errors of step operation conditions.

  According to invention of Claim 2, since the color of the part which the driving | running | working on the line graph displayed on the display part passed changes, the progress of step driving | operation can be recognized visually by this color change. it can.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a centrifuge according to the present invention, FIG. 2 is a block diagram showing a basic configuration of the centrifuge, and the illustrated centrifuge 1 includes a rectangular box-shaped housing 2 shown in FIG. 2 is configured to house the chamber 3 shown in FIG. 2, a motor 4 as a drive source, and the like.

  The chamber 3 accommodates a rotor 5 that holds a sample (not shown) to be centrifuged. The rotor 5 is detachably attached to the tip of an output shaft 6 that extends above the motor 4. ing. The upper portion of the chamber 3 is opened. The upper opening is opened and closed by a door 7. After the door 7 is opened and the rotor 5 is set in the chamber 3, the door 7 is closed and the chamber 3 is sealed. The operation is started and the rotor 5 is rotationally driven, and a sample (not shown) accommodated in the rotor 5 is centrifuged.

  As shown in FIG. 1, an operation panel 8 is provided on the top of the housing 2, and a color liquid crystal display unit 9 with a touch panel function and a numeric keypad input unit 10 are provided on the operation panel 8.

  Further, the housing 2 incorporates a CPU 11 as control means shown in FIG. The CPU 11 is used for controlling the driving of the motor 4, that is, the rotation of the rotor 5, by transmitting a control signal based on the operating condition input from the numeric keypad input portion 10 of the operation panel 8 by the operator to the motor 4. This includes a color liquid crystal display unit 9 with a touch panel function and a numeric keypad input unit 10 of the operation panel 8, a read only ROM 12 for storing a control program, and a readable / writable RAM 13 for storing operation time. A backup battery 14 is connected to the RAM 13.

  Next, the operation control method of the centrifuge 1 having the above configuration will be described with reference to FIGS.

  3 and 4 are diagrams showing an example in which operating conditions are graphically displayed as a line graph on the display screen, and FIGS. 5 to 9 are diagrams showing screens for displaying step operation setting procedures.

  The operator opens the door 7 of the centrifuge 1, houses the rotor 5 containing the sample to be centrifuged in the chamber 3, attaches it to the output shaft 6 of the motor 4, and uses the numeric keypad input section 10 of the operation panel 8. The operating conditions are input, and the contents are displayed on the color liquid crystal display unit 9 with a touch panel function. Here, as shown in FIGS. 5 and 6, the operating conditions include a rotational speed (SPEED), an operating time (TIME), a holding temperature (TEMP), an acceleration gradient (ACCEL), a deceleration gradient (DECEL), and the like. These are stored in the RAM 13 by the CPU 11.

  Here, the input method of the operation condition of step operation is demonstrated based on FIGS.

  When “PROG” in the FUNCTION section on the RUN SCREEN screen shown in FIG. 5 is selected, the FUNCTION section becomes “PROGRAM” as shown in FIG. Then, when the cursor is moved to “PROGRAM” and selected, “Program Map” is displayed on the screen as shown in FIG.

  “Program Map” indicates the registration status of the memory registration area, and “No.” 01 to 07 in this “Program Map” indicates an area for storing seven step operation settings. "Indicates the number of steps in the step operation. In “Parameter”, the set rotational speed of the first step of the step operation is displayed.

  Then, in the “● Enter the desired number” on the screen, the memory No. When is selected, a screen for setting step operation is displayed. For example, the memory No. When the area No. 7 is selected, all the step setting conditions stored in “MEMORY No. 7” are displayed as shown in FIG. When “2: Creating or Changing” is selected on this screen, as shown in FIG. 9, rotational speed (SPEED), operating time (TIME), holding temperature (TEMP), acceleration gradient (ACCEL) are set as step operation setting conditions. The deceleration gradient (DECEL) can be input for each of STEP 1 to STEP 7.

  Then, after inputting the step condition, when “1. Yes” is entered in “● Do you save all runs conditions?” And confirmed, the maximum set rotational speed among the input step operation set values is the vertical axis. Step operation setting conditions are displayed in a line graph as shown in FIG. 3 so that the total value of TIME (set time) of all steps of the input step operation becomes the maximum value on the horizontal axis, and the operator Can visually confirm the step operation setting condition by this line graph.

  Note that when a line graph is displayed on the screen as shown in FIG. 3, the rotation speed and operation time of each step may be displayed using an empty space in the graph. Further, when the operating conditions are displayed as a line graph, the setting of the rotation speed or the operation time may be changed by touching the touch panel of the color liquid crystal display unit 9 with a touch panel function (for example, the rotation speed is 5000 rpm). To 4000 rpm). In this case, the unit that can be changed is determined by the dot on the vertical axis of the color liquid crystal display unit 9 with a touch panel function with respect to the maximum rotational speed specified on the vertical axis for the rotational speed, and the step operation setting also entered for the operation time The value is determined by dots on the horizontal axis of the color liquid crystal display unit 9 with a touch panel function with respect to the total value of the values TIME (setting time).

  Next, the step operation method will be described.

  When “PROG” in the FUNCTION section of the RUN SCREEN screen shown in FIG. 5 is selected, the FUNCTION section becomes “PROGRAM” as shown in FIG. And the memory No. to be operated in the MEMORY section is stored. Is entered, the setting conditions of the first step are displayed on the RUN SCREEN screen, and the No. of the first step and the end step are displayed on the STEP display portion of the PROGRAM portion. Is displayed. To check the memory contents, select “PROGRAM” and check with Program Map shown in FIG.

  As shown in FIG. 6, after recalling the memory contents to be operated, when “GRAFIC” in “PROGRAM” of the FUNCTION section is selected, step operation setting conditions are displayed in a line graph as shown in FIG. When started, the color of the line graph of the portion where the operation has passed changes (the color change is indicated by a thick line in FIG. 4), and the progress of the step operation can be visually recognized by this color change. .

  As described above, in the present embodiment, when performing the step operation of the centrifuge 1, the step operation conditions input by the numeric keypad input unit 10 of the operation panel 8 are shown in FIG. Since the line color graph is displayed on the attached color liquid crystal display unit 9, the operator can visually recognize the entire operation of the step by using the line graph, and can prevent an erroneous input of the step operation condition.

  Further, according to the present embodiment, as shown in FIG. 4, since the color of the portion where the operation has elapsed on the line graph displayed on the color liquid crystal display unit 9 with a touch panel function is changed, The progress of step operation can be visually recognized by the change.

  In the present embodiment, the color liquid crystal display unit is used as the display unit. However, the display unit may be a single color display unit. When the progress is indicated, the thickness of the line is changed, or a symbol such as a circle is displayed. May be used.

1 is a perspective view of a centrifuge according to the present invention. It is a block diagram which shows the basic composition of the centrifuge which concerns on this invention. It is a figure which shows an example which displayed the operating condition of the centrifuge which concerns on this invention graphically by the line graph on the display screen. It is a figure which shows the progress condition of the step operation of the centrifuge which concerns on this invention, changing the color of a line graph. It is a figure which shows the screen which displays the step operation setting procedure of the centrifuge which concerns on this invention. It is a figure which shows the screen which displays the step operation setting procedure of the centrifuge which concerns on this invention. It is a figure which shows the screen which displays the step operation setting procedure of the centrifuge which concerns on this invention. It is a figure which shows the screen which displays the step operation setting procedure of the centrifuge which concerns on this invention. It is a figure which shows the screen which displays the step operation setting procedure of the centrifuge which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Centrifugal separator 2 Case 3 Chamber 4 Motor 5 Rotor 6 Motor output shaft 7 Door 8 Operation panel 9 Color liquid crystal display part with a touch panel function 10 Numeric keypad input part (key input part)
11 CPU
12 ROM
13 RAM (Read / write storage unit)
14 battery

Claims (2)

A motor, a rotor driven to rotate by the motor, a key input unit for inputting operating conditions for centrifuging a sample accommodated in the rotor, a display unit for displaying an operating state, and a readable / writable storage unit In a centrifuge having a control means comprising:
When performing step operation that operates continuously in multiple stages of operation conditions, after inputting the step operation condition by the key input unit, the step operation condition is displayed on the display unit, the rotation speed is on the vertical axis, and the operation time is on the horizontal axis A centrifuge characterized by being displayed as a broken line graph.   The centrifuge according to claim 1, wherein the color of the portion where the operation on the line graph displayed on the display unit has elapsed is changed.

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