JP5762010B2 - Blood purification apparatus, blood purification apparatus control method, and program - Google Patents

Description

  The present invention relates to a blood purification apparatus, a blood purification apparatus control method, and a program.

  Conventionally, blood purification treatment has been performed in which blood is taken out from a patient's body, and pathogenic substances, specific white blood cells and the like are removed from the blood and returned to the body. In such blood purification treatment, a blood circuit for circulating blood taken out from the body and returning it to the body, a blood pump provided on the blood circuit, for feeding blood, and a predetermined blood circuit A blood purification apparatus having pressure measuring means for measuring pressure is used.

  In order for blood purification treatment to be safely performed, the pressure in the blood circuit is constantly monitored. If the monitored measured pressure is in a range (normal range) between the upper limit value and the lower limit value of the preset pressure alarm value, it is determined as a normal state. When the normal range is exceeded, an abnormal state is determined, an alarm is generated, and the treatment is suspended until the cause is removed.

  By the way, since the pressure of the blood circuit varies depending on individual differences among patients, the operating conditions of the blood purification apparatus, the surrounding environment, and the like, it is desirable that the user can freely set the pressure alarm value according to the situation. Further, it is desirable that the relationship between the monitored measured pressure and the pressure alarm value is visualized by a graph or the like and displayed on the display of the apparatus.

  A conventional display is provided with a setting unit that can set a pressure alarm value, and a display unit such as a graph that displays the relationship between the measured pressure value and the pressure alarm value. As shown in FIG. 11, the display unit 100 has a certain length in the scale direction of the pressure value, and the upper limit value at one end of the display unit 100 is fixed in advance to a maximum value (for example, 400 mmHg) that can be set on the display. The lower limit value of the other end of the display unit 100 is fixed in advance to a minimum value (for example, −400 mmHg) that can be set on the display. Thereby, the range of the pressure value displayed on the display unit 100 is from the settable minimum value to the settable maximum value (for example, −400 mmHg to 400 mmHg). Patent Documents 1 and 2 are cited as documents disclosing techniques related to a display for displaying pressure.

JP 2004-248793 A JP 2004-313370 A

  In the above display, when the pressure alarm values Pmax and Pmin suitable for each patient are set and displayed on the display unit 100 as shown in FIG. 11, the normal range A (pressure alarm value) with respect to the display range of the display unit 100 is displayed. The range between the upper limit value Pmax and the lower limit value Pmin) may become narrower. In this case, it becomes difficult to visually recognize the relationship between the measured pressure value Pt indicating the current pressure and the pressure alarm values Pmax and Pmin during the blood purification process. In particular, the display for blood purification processing needs to display a large number of information such as a plurality of types of pressure information and blood flow information indicating the state of the blood purification processing for ensuring safety and the like. The size of 100 is relatively small and the normal range A is narrowed, and the relationship between the measured pressure value and the pressure alarm value is difficult to visually recognize.

  The present invention has been made in view of the above points, and is a blood purification device and a blood purification device control method capable of improving the visibility of a display unit indicating the relationship between a measured pressure value and a pressure alarm value in a display means such as a display. And its purpose is to provide a program.

  To achieve the above object, the present invention provides a blood circuit for performing blood purification processing, a pressure measuring means for measuring a predetermined pressure in the blood circuit, and a pressure alarm value for the pressure measured by the pressure measuring means. Setting means, display means for displaying the relationship between the measured pressure value measured by the pressure measuring means and the pressure alarm value set in the setting means, and the pressure alarm set in the setting means In conjunction with the value, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, and the pressure value that can be displayed on the display unit Pressure range changing means for changing a range of pressure values displayed on the display unit so that a lower limit value is a minimum value of the pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value; Blood purification It is a device.

  According to the present invention, in conjunction with the pressure alarm value set in the setting means, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, Since the range of the pressure value of the display unit is changed so that the lower limit value of the pressure value that can be displayed on the display unit is the minimum value of the pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value, The length from the upper limit value to the lower limit value of the pressure alarm value can be displayed more widely. Thereby, the visibility of the display part which shows the relationship between a measured pressure value and a pressure alarm value can be improved.

  The predetermined numerical value added to the maximum value may be any value from 1 to 50 mmHg, and the predetermined numerical value subtracted from the minimum value may be any value from 1 to 50 mmHg. Further, the predetermined numerical value added to the maximum value is a value in which the upper limit value of the pressure value that can be displayed on the display unit is an integral multiple of 50 of the pressure unit, and the predetermined numerical value subtracted from the minimum value is The lower limit value of the pressure value that can be displayed on the display unit may be a value that is an integral multiple of 50 pressure units.

  The pressure alarm value has a plurality of levels of pressure alarm values, and an upper limit value of the pressure value that can be displayed on the display unit is a maximum value among the plurality of levels of pressure alarm values or a predetermined numerical value is added to the maximum value. The lower limit value of the pressure value that can be displayed on the display unit may be a minimum value of the plurality of stages of pressure alarm values or a value obtained by subtracting a predetermined numerical value from the minimum value. In order to improve the safety of blood purification treatment, the pressure alarm value may be set in a plurality of stages, but even in such a case, since the length of the display unit is used effectively, the measured pressure value and the pressure alarm value The visibility of the relationship can be secured.

  According to another aspect of the present invention, there is provided a blood circuit that performs a blood purification process, a blood pump that is located on the blood circuit and that feeds blood, a pressure measuring unit that measures a predetermined pressure of the blood circuit, Based on a first pressure alarm value indicating a limit value for the pressure measured by the pressure measuring means and a reference pressure value measured by the pressure measuring means while the blood is being pumped into the blood circuit by the blood pump. A setting in which a second pressure alarm value to be determined and a third pressure alarm value determined on the basis of at least one of the first pressure alarm value and the second pressure alarm value are set. Display means for displaying a relationship between the measured pressure value and the first, second and third pressure alarm values together with the measured pressure value measured by the pressure measuring means, and the setting means Set to the second In conjunction with the pressure alarm value, the upper limit value of the pressure value that can be displayed on the display unit is the upper limit value of the first pressure alarm value or a value obtained by adding a predetermined numerical value to the upper limit value, and the display unit Pressure range that fluctuates the range of pressure values displayed on the display unit so that the lower limit value of the pressure value that can be displayed is the lower limit value of the first pressure alarm value or a value obtained by subtracting a predetermined numerical value from the lower limit value The measured pressure value measured by the fluctuating means and the pressure measuring means is monitored, and reaches either the first pressure alarm value, the second pressure alarm value, or the third pressure alarm value. A blood purification apparatus having alarm generation means for issuing an alarm sometimes.

  According to the present invention, the upper limit value of the pressure value that can be displayed on the display unit in conjunction with the first pressure alarm value indicating the pressure limit value set in the setting means is the upper limit value of the first pressure alarm value or Displayed so that a value obtained by adding a predetermined numerical value to the upper limit value, and a lower limit value of the pressure value that can be displayed on the display unit becomes a lower limit value of the first pressure alarm value or a value obtained by subtracting the predetermined numerical value from the lower limit value. Since the range of the pressure value of the section is changed, the length of the display section can be effectively used, and the range from the upper limit value to the lower limit value of the first pressure alarm value can be displayed more widely. Thereby, the visibility of the display part which shows the relationship between a measurement pressure value and the 1st-3rd pressure alarm value can be improved. In particular, since the second pressure alarm value and the third pressure alarm value displayed in a region narrower than the first pressure alarm value are displayed larger, the visibility of these pressure alarm values is greatly improved. .

  The second pressure alarm value may be set by setting at least one of an upper limit width and a lower limit width from the reference pressure value in the setting means.

  The third pressure alarm value is set by setting at least one value of an upper limit width or a lower limit width from at least one of the first pressure alarm value or the second pressure alarm value in the setting means. You may be made to do.

  According to another aspect of the present invention, there is provided a step of displaying a relationship between a predetermined pressure value of the blood circuit measured by the pressure measuring unit and a pressure alarm value set in the setting unit on a display unit of the display unit; In conjunction with the pressure alarm value set in the means, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, and the display unit Changing the range of pressure values displayed on the display unit so that the lower limit value of the pressure value that can be displayed on the display is the minimum value of the pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value; A method for controlling a blood purification apparatus.

  According to another aspect of the present invention, there is provided a step of displaying a relationship between a predetermined pressure value of the blood circuit measured by the pressure measuring unit and a pressure alarm value set in the setting unit on a display unit of the display unit; In conjunction with the pressure alarm value set in the means, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, and the display unit Changing the range of pressure values displayed on the display unit so that the lower limit value of the pressure value that can be displayed on the display is the minimum value of the pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value; A program for causing a computer to execute.

  ADVANTAGE OF THE INVENTION According to this invention, the visibility of the display part which shows the relationship between the measured pressure value and pressure alarm value in the display means of a blood purification apparatus improves.

It is explanatory drawing which shows the outline of a structure of the blood purification apparatus. It is explanatory drawing which shows an example of a setting screen. It is explanatory drawing which shows an example of a display screen. It is a flowchart of the control method of a blood purification apparatus. It is explanatory drawing which shows an example of the setting screen in 2nd Embodiment. It is explanatory drawing which shows an example of the display screen in 2nd Embodiment. It is explanatory drawing which shows an example of the display screen at the time of the blood purification process start. It is explanatory drawing which shows an example of the display screen in case a display part is a fan shape. It is explanatory drawing which shows the other example of a display part. It is explanatory drawing which shows the other example of a display part. It is explanatory drawing which shows the display part before improvement.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing an outline of the configuration of blood purification apparatus 1 according to the present embodiment.

(First embodiment)
In the blood purification apparatus 1, for example, a blood circuit 10 that performs blood purification processing, a pressure measurement unit 11 that measures a predetermined pressure in the blood circuit 10, and a pressure alarm value for a measurement pressure that is measured by the pressure measurement unit 11 are set. Setting means 12, and a display means 13 for displaying a relationship between a measured pressure value measured by the pressure measuring means 11 and a pressure alarm value set in the setting means 12 on a display unit 70 described later having a certain length. In conjunction with the pressure alarm value set in the setting means 12, the upper limit value of the pressure value that can be displayed on the display unit 70 (the value at one end of the display unit 70) is displayed on the display unit 70. Pressure range changing means 14 for changing the range of the pressure value displayed on the display unit 70 so that the lower limit value of the pressure value that can be made (the value at the other end of the display unit 70) becomes the minimum value of the pressure alarm value; Have.

  On the blood circuit 10, for example, a blood pump 20 for feeding blood and a blood purifier 21 for purifying blood are provided.

  The pressure measuring means 11 includes, for example, a pressure sensor 30 that is provided on the downstream side of the blood purifier 21 of the blood circuit 10 and detects the pressure in the blood circuit 10. Thereby, the outlet pressure of the blood purifier 21 can be measured. The pressure measuring means 11 may measure the blood pressure removal upstream of the blood pump 20, the inlet pressure of the blood purifier 21, and the like.

  The setting unit 12, the display unit 13, the pressure range changing unit 14, and the alarm generating unit 15 are configured as one control device 40, for example.

  As shown in FIG. 2, the setting screen 50 of the control device 40 is a touch panel and constitutes the setting means 12. The setting screen 50 has a setting unit 51 for inputting and setting a pressure alarm value for the measured pressure in the blood circuit 10 measured by the pressure measuring means 11. This pressure alarm value does not depend on the measured pressure value measured by the pressure measuring means 11. The setting screen 50 has a setting display section 52 that displays the relationship between the set pressure alarm value (pressure upper limit value Pmax and pressure lower limit value Pmin) and the measured pressure value Pt. For example, the setting display unit 52 displays the pressure value one-dimensionally, the pressure upper limit value Pmax is displayed at one end in the scale direction (left and right direction in FIG. 2), and the pressure lower limit value Pmin is displayed at the other end in the scale direction. The measured pressure value Pt is displayed.

  As shown in FIG. 3, the display screen 60 of the control device 40 constitutes the display means 13. The display screen 60 includes a display unit 70 that displays the relationship between the measured pressure value Pt measured by the pressure measuring unit 11 and the pressure alarm values Pmax and Pmin set in the setting unit 12. The display unit 70 is a graph having an elongated rectangular shape and displaying pressure values one-dimensionally, and has a certain length in the scale direction (left-right direction in FIG. 3).

  The pressure range changing means 14 is linked with the pressure alarm values Pmax and Pmin set in the setting means 12 so that the upper limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure upper limit value Pmax that is the maximum value of the pressure alarm value. Thus, the range of the pressure value displayed on the display unit 70 is changed so that the lower limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure lower limit value Pmin that is the minimum value of the pressure alarm value. The alarm generation unit 15 monitors the measurement pressure value Pt measured by the pressure measurement unit 11, and issues an alarm when the measurement pressure value Pt reaches the pressure alarm values Pmax and Pmin. The operations of the setting unit 12, the display unit 13, the pressure range changing unit 14, and the alarm generating unit 15 are executed by a calculation unit such as a CPU executing a program stored in a storage unit such as a memory of the control device 40. It is realized by.

  Next, a method for controlling the blood purification apparatus 1 will be described. FIG. 4 is a flowchart of the control method of the blood purification apparatus 1. First, in conjunction with the pressure alarm value set in the setting means 12, the upper limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure upper limit value Pmax of the pressure alarm value, and the lower limit of the pressure value that can be displayed on the display unit 70. The range of the pressure value displayed on the display unit 70 is changed so that the value becomes the pressure lower limit value Pmin of the pressure alarm value (step S1). Next, as shown in FIG. 3, the relationship between the measured pressure value Pt of the blood circuit 10 measured by the pressure measuring means 11 and the pressure alarm values Pmax and Pmin set in the setting means 12 is displayed on the display unit 70. (Step S2). Thereafter, the blood purification process is started, the measured pressure value Pt measured by the pressure measuring means 11 is monitored, and the measured pressure value Pt reaches either the pressure upper limit value Pmax or the pressure lower limit value Pmin of the pressure alarm value. Sometimes an alarm is issued (step S3).

  According to the present embodiment, the upper limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure upper limit value Pmax in conjunction with the pressure alarm value input to the setting means 12, and the pressure value that can be displayed on the display unit 70. Since the lower limit value of the pressure becomes the pressure lower limit value Pmin, the size of the display unit 70 can be effectively used to the maximum, and the range from the upper limit value to the lower limit value of the pressure alarm value can be displayed more widely. Thereby, the visibility of the display part 70 which shows the relationship between measured pressure value Pt and a pressure alarm value can be improved. In addition, for example, a large amount of pressure information indicating the state of blood purification processing is displayed on the display means 13, and even when the length of each display unit 70 is limited, the visibility of the display unit 70 is ensured to the maximum. it can.

(Second Embodiment)
The blood purification apparatus 1 according to the second embodiment has the same configuration as that of the first embodiment except for the following parts. In addition, the code | symbol of each component of an apparatus uses the same thing as 1st Embodiment, and abbreviate | omits description of the same component.

  The blood purification apparatus 1 has a plurality of levels of pressure alarm values, and the upper limit value of the pressure value that can be displayed on the display unit 70 is the maximum value among the plurality of levels of pressure alarm values, and the pressure value that can be displayed on the display unit 70 The lower limit value is the minimum value of the pressure alarm values in a plurality of stages.

  As shown in FIG. 1, the blood purification apparatus 1 includes, for example, a setting unit 12 for setting a first pressure alarm value P1, a second pressure alarm value P2, and a third pressure alarm value P3 in three stages, and a pressure measuring unit. 11 together with the measured pressure value Pt measured by the display unit 13 for displaying the relationship between the measured pressure value Pt and the first, second and third pressure alarm values P1 to P3 on the display unit 70, and the setting unit 12 In conjunction with the set first pressure alarm value P1, the upper limit value of the pressure value that can be displayed on the display unit 70 becomes the upper limit value of the first pressure alarm value P1, and the lower limit value of the pressure value that can be displayed on the display unit 70 The pressure range changing means 14 for changing the range of the pressure value displayed on the display unit 70 and the measured pressure value Pt measured by the pressure measuring means 11 so that the value becomes the lower limit value of the first pressure alarm value P1. To monitor the first pressure alarm value P Has an alarm generating means 15 for issuing an alarm when it reaches the one of the second pressure alarm value P2, or the third pressure alarm value P3, the.

  The first pressure alarm value P <b> 1 indicates a limit value set in advance for a predetermined measurement pressure measured by the pressure measurement unit 11. The first pressure alarm value P1 is an absolute alarm value determined in advance without depending on the measured pressure value Pt. The second pressure alarm value P2 is a relative alarm value determined on the basis of the reference pressure value Ps measured by the pressure measuring means 11 while blood is fed into the blood circuit 10 by the blood pump 20. As the reference pressure value Ps, for example, the measured pressure Pt at the time when the pressure fluctuation after the elapse of a predetermined time after the start of the blood purification process becomes small is adopted. The third pressure alarm value P3 is determined based on at least one of the first pressure alarm value P1 and the second pressure alarm value P2. For example, the measured pressure Pt has approached one of the pressure alarm values. It is for informing.

  For example, as shown in FIG. 5, the setting screen 50 constituting the setting means 12 has a pressure upper limit value P1max for setting the first pressure alarm value P1 for the pressure in the blood circuit 10 measured by the pressure measuring means 11. , Pressure lower limit P1min, upper limit width H1 for setting second pressure alarm value P2, lower limit width H2, pre-alarm upper limit width H3 for setting third pressure alarm value P3, pre-alarm lower limit width There is a setting unit 51 for inputting and setting H4. The setting screen 50 includes a setting display unit 52 that displays the relationship between the set first pressure alarm value P1 to the third pressure alarm value P3 and the measured pressure value Pt, for example. For example, the setting display unit 52 displays the pressure value one-dimensionally, the pressure upper limit value P1max of the first pressure alarm value P1 is displayed at one end in the scale direction (left-right direction in FIG. 5), and the pressure is displayed at the other end in the scale direction. The lower limit value P1min is displayed, during which the reference pressure value Ps, the second pressure upper limit value P2max of the second pressure alarm value P2, the second pressure lower limit value P2min, the upper limit pre-alarm value P3max of the third pressure alarm value P3, The lower limit pre-alarm value P3min is displayed.

  As shown in FIG. 6, the display screen 60 of the display means 13 includes the measured pressure value Pt measured by the pressure measuring means 11, the reference pressure value Ps, the pressure upper limit value P1max of the first pressure alarm value, and the pressure lower limit value. P1min, the second pressure upper limit value P2max of the second pressure alarm value, the second pressure lower limit value P2min, the relationship between the upper limit pre-alarm value P3max and the lower limit pre-alarm value P3min of the third pressure alarm value is displayed. There are 70.

  The pressure range changing means 14 is linked to the first pressure alarm value P1 set in the setting means 12, and the upper limit value of the pressure value that can be displayed on the display unit 70 is the pressure upper limit value P1max of the first pressure alarm value P1. The pressure value range displayed on the display unit 70 is changed so that the lower limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure lower limit value P1min of the first pressure alarm value P1. The display unit 70 displays the second pressure upper limit value P2max and the second pressure lower limit value P2min by the upper limit widths H1 and H2 with reference to the reference pressure value Ps. Further, the display unit 70 displays the pre-alarm upper limit value P3max by the pre-alarm upper limit width H3 based on the second pressure lower limit value P2min, and the pre-alarm lower limit width H4 based on the second pressure upper limit value P2max. The alarm lower limit P3min is displayed. The alarm generating means 15 monitors the measured pressure value Pt measured by the pressure measuring means 11, and the measured pressure value Pt is the pressure upper limit value P1max, the pressure lower limit value P1min, the second pressure upper limit value P2max, and the second pressure lower limit value. An alarm is issued when any of P2min, pre-alarm upper limit value P3max, and pre-alarm lower limit value P3min is reached.

  For example, the setting unit 12, the display unit 13, the pressure range variation unit 14, and the alarm generation unit 15 are operated by a calculation unit such as a CPU that executes a program stored in a storage unit such as a memory of the control device 40. Is realized.

  Next, a control method of blood purification apparatus 1 in the present embodiment will be described. First, in conjunction with the first pressure alarm value P1 set in the setting means 12, the upper limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure upper limit value P1max of the first pressure alarm value P1, and the display unit The range of the pressure value displayed on the display unit 70 is changed so that the lower limit value of the pressure value that can be displayed on the pressure value 70 becomes the pressure lower limit value P1min of the pressure alarm value (step S1 shown in FIG. 4). Next, the measured pressure value Pt of the blood circuit 10 measured by the pressure measuring means 11, the pressure upper limit value P1max, the pressure lower limit value P1min, the second pressure upper limit value P2max, and the second pressure lower limit value set by the setting means 12. The relationship among P2min, pre-alarm upper limit value P3max, and pre-alarm lower limit value P3min is displayed on the display unit 70 (step S2 shown in FIG. 4). The pressure upper limit value P1max and the pressure lower limit value P1min are set by being directly input to the setting unit 51 in the setting means 12, and the second pressure upper limit value P2max, the second pressure lower limit value P2min, the pre-alarm upper limit value P3max, and the pre-alarm. The lower limit value P3min is set based on the reference pressure value Ps by inputting the upper limit width or the upper limit width to the setting unit 51. Thereafter, the blood purification process is started, the measured pressure value Pt measured by the pressure measuring means 11 is monitored, and the measured pressure value Pt is the pressure upper limit value P1max, the pressure lower limit value P1min, the second pressure upper limit value P2max, the second An alarm is issued when either the pressure lower limit value P2min, the pre-alarm upper limit value P3max, or the pre-pressure alarm lower limit value P3min is reached (step S3 shown in FIG. 4).

  According to the present embodiment, in conjunction with the first pressure alarm value P1 set in the setting means 12, the lower limit value of the pressure value that can be displayed on the display unit 70 becomes the pressure upper limit value Pmax. Since the lower limit value of the pressure value that can be displayed is the pressure lower limit value Pmin, the length between the upper limit value and the lower limit value of the first pressure alarm value P1 is more effectively utilized as much as possible. Widely displayed. Thereby, the visibility of the display part 70 which shows the relationship between measured pressure value Pt and the 1st-3rd pressure warning value P1-P3 can be improved. In particular, since the second pressure alarm value P2 and the third pressure alarm value P3 displayed in a region narrower than the first pressure alarm value P1 are displayed in a wider space, the visibility of these pressure alarm values Will improve dramatically.

  In the present embodiment, the first pressure alarm value P1, the second pressure alarm value P2, and the third pressure alarm value P3 are displayed on the display unit 70, but other pressure alarm values are displayed. May be. Further, the third pressure alarm value P3 is determined based on the second pressure alarm value P2, but may be determined based on the first pressure alarm value P1, or determined based on both. It may be done. The second pressure alarm value P2 and the third pressure alarm value P3 may be either an upper limit value or a lower limit value.

  When the pressure fluctuation at the start of the blood purification process is relatively large, the second pressure alarm value P2 is not displayed and the first pressure alarm value P1 (pressure upper limit value) is displayed on the display unit 70 as shown in FIG. P1max, pressure lower limit value P1min) and a third pressure alarm value P3 (pre-alarm upper limit value P3max, pre-alarm lower limit value P3min) determined based on the first pressure alarm value P1 are displayed, and blood purification processing is performed. As shown in FIG. 6, when the pressure after a predetermined time has elapsed since the start of the operation, the display unit 70 displays the first pressure alarm value P1 and the second pressure alarm value P2 (second pressure Upper limit value P2max, second pressure lower limit value P2min) and a third pressure alarm value P3 determined based on the second pressure alarm value P2 (pre-alarm upper limit value P3max, pre-alarm lower limit value P3min) are displayed. May be.

  In the above embodiment, the display unit 70 is a graph extending linearly in a certain direction. However, for example, a fan-shaped graph as shown in FIG. 8 may be used. At this time, both sides of the boundary line indicating the measured pressure value Pt may have different colors and patterns. In addition, the display unit 70 may be a graph having another shape such as a pie chart or a wave chart.

  In the above embodiment, the upper limit value of the pressure value that can be displayed on the display unit 70 by the pressure range changing unit 14 in conjunction with the pressure alarm value set in the setting unit 12 is set to the maximum value of the pressure alarm value. The range of the pressure value displayed on the display unit 70 has been changed so that the lower limit value of the pressure value that can be displayed on the display unit 70 becomes the minimum value of the pressure alarm value. For example, as shown in FIG. In the pressure range changing means 14, the upper limit value of the pressure value that can be displayed on the display unit 70 is a value obtained by adding a predetermined numerical value α1 to the maximum pressure alarm value Pmax, and the lower limit of the pressure value that can be displayed on the display unit 70 The range of the pressure value displayed on the display unit 70 may be varied so that the value becomes a value obtained by subtracting the predetermined numerical value α2 from the minimum value Pmin of the pressure alarm value.

  For example, the predetermined value α1 added to the maximum value Pmax of the pressure alarm value is one of 1 to 50 mmHg (for example, 133.3 to 6666.1 Pa if the pressure unit is Pa), and the minimum value of the pressure alarm value The predetermined numerical value α2 subtracted from Pmin is one of 1 to 50 mmHg (for example, 133.3 to 6666.1 Pa if the pressure unit is Pa).

  In such a case, the visibility of the display unit 70 showing the relationship between the measured pressure value Pt and the pressure alarm value can be improved. For example, when the measured pressure value Pt exceeds the pressure alarm value, it is possible to recognize how much the pressure value Pt has been exceeded. In this example, the predetermined numerical values α1 and α2 may be the same numerical value or different numerical values. Further, the predetermined numerical values α1 and α2 may be set by the setting means 12.

  Further, as shown in FIG. 10, the predetermined numerical value α1 added to the maximum value Pmax of the pressure alarm value is an integral multiple of 50 of the pressure unit, ie, 50 × n (the upper limit value of the pressure value that can be displayed on the display unit 70 n is an integer) mmHg, and the predetermined numerical value α2 subtracted from the minimum value Pmin of the pressure alarm value is an integer number in which the lower limit value of the pressure value that can be displayed on the display unit 70 is 50, for example 50 The value may be xk (k is an integer) mmHg. In such a case, the numerical values at both ends of the display unit 70 are integer multiples of 50 (mmHg), so that the visibility of the display unit 70 can be improved. 9 and 10 are examples in which the predetermined numerical values α1 and α2 are set in the hemodialysis apparatus 1 according to the first embodiment. You may apply to this hemodialysis apparatus 1.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

DESCRIPTION OF SYMBOLS 1 Blood purification apparatus 10 Blood circuit 11 Pressure measuring means 12 Setting means 13 Display means 14 Pressure range changing means 15 Alarm generating means 20 Blood pump 21 Blood purifier 30 Pressure sensor 40 Control apparatus 50 Setting screen 51 Setting part 52 Setting display part 60 Display screen 70 Display section

Claims (9)

A blood circuit for blood purification treatment;
Pressure measuring means for measuring a predetermined pressure of the blood circuit;
Setting means for setting a pressure alarm value for the pressure measured by the pressure measuring means;
Display means for displaying a relationship between a measured pressure value measured by the pressure measuring means and a pressure alarm value set in the setting means on a display unit;
In conjunction with the pressure alarm value set in the setting means, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, and The range of the pressure value displayed on the display unit is changed so that the lower limit value of the pressure value that can be displayed on the display unit is the minimum value of the pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value. A blood purification device comprising pressure range variation means.   The predetermined numerical value added to the maximum value is any value from 1 to 50 mmHg, and the predetermined numerical value subtracted from the minimum value is any value from 1 to 50 mmHg. Blood purification device.   The predetermined numerical value added to the maximum value is a value in which the upper limit value of the pressure value that can be displayed on the display unit is an integral multiple of 50 of the pressure unit, and the predetermined numerical value subtracted from the minimum value is The blood purification apparatus according to claim 1, wherein the lower limit of the pressure value that can be displayed on the display unit is a value that is an integral multiple of 50 of the pressure unit. The pressure alarm value has a plurality of pressure alarm values,
The upper limit value of the pressure value that can be displayed on the display unit is the maximum value among the plurality of pressure alarm values or a value obtained by adding a predetermined numerical value to the maximum value, and the lower limit value of the pressure value that can be displayed on the display unit The blood purification device according to any one of claims 1 to 3, wherein becomes a minimum value of the plurality of stages of pressure alarm values or a value obtained by subtracting a predetermined numerical value from the minimum value. A blood circuit for blood purification treatment;
A blood pump located on the blood circuit for delivering blood;
Pressure measuring means for measuring a predetermined pressure of the blood circuit;
Based on a first pressure alarm value indicating a limit value for the pressure measured by the pressure measuring means and a reference pressure value measured by the pressure measuring means while blood is being fed into the blood circuit by the blood pump. And a third pressure alarm value determined on the basis of at least one of the first pressure alarm value and the second pressure alarm value is set. Setting means;
Display means for displaying the relationship between the measured pressure value and the first, second and third pressure alarm values on the display unit together with the measured pressure value measured by the pressure measuring means;
In conjunction with the first pressure alarm value set in the setting means, the upper limit value of the pressure value that can be displayed on the display unit is the upper limit value of the first pressure alarm value or a predetermined numerical value is added to the upper limit value. And the lower limit value of the pressure value that can be displayed on the display unit is displayed on the display unit such that the lower limit value of the first pressure alarm value or a value obtained by subtracting a predetermined numerical value from the lower limit value is obtained. Pressure range changing means for changing the range of pressure values;
The measured pressure value measured by the pressure measuring means is monitored, and an alarm is generated when any of the first pressure alarm value, the second pressure alarm value, or the third pressure alarm value is reached. A blood purification device comprising:   The blood purification apparatus according to claim 5, wherein the second pressure alarm value is set by setting at least one of an upper limit width and a lower limit width from the reference pressure value in the setting means.   The third pressure alarm value is set by setting at least one value of an upper limit width or a lower limit width from at least one of the first pressure alarm value or the second pressure alarm value in the setting means. The blood purification apparatus according to claim 5 or 6, wherein Displaying a relationship between a predetermined measurement pressure value of the blood circuit measured by the pressure measurement means and a pressure alarm value set in the setting means on the display unit of the display means;
In conjunction with the pressure alarm value set in the setting means, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, and Fluctuating a range of pressure values displayed on the display unit such that a lower limit value of the pressure value that can be displayed on the display unit is a minimum value of a pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value; A method for controlling a blood purification apparatus. Displaying a relationship between a predetermined measurement pressure value of the blood circuit measured by the pressure measurement means and a pressure alarm value set in the setting means on the display unit of the display means;
In conjunction with the pressure alarm value set in the setting means, the upper limit value of the pressure value that can be displayed on the display unit is the maximum value of the pressure alarm value or a value obtained by adding a predetermined numerical value to the maximum value, and Fluctuating a range of pressure values displayed on the display unit such that a lower limit value of the pressure value that can be displayed on the display unit is a minimum value of a pressure alarm value or a value obtained by subtracting a predetermined numerical value from the minimum value; A program for causing a computer to execute.

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