JP6606662B2 - Numerical setting switch system for infusion pumps - Google Patents

Description

The present invention relates to a numerical value setting switch system for an infusion pump such as a syringe pump . More specifically, the present invention relates to a numerical value setting switch system for an infusion pump that can set a predetermined numerical value in a short time by changing a changing speed of the numerical value according to a pressing force of a user.

In the medical device, various numerical values are set according to the patient. For example, in an infusion device such as an infusion pump , the amount of medicine to be administered and the amount of infusion, the rate of administration, the operating time, and the like are set.

  The set values of the infusion volume and operation time in the infusion device have a very wide range depending on the patient, the type of medicine to be administered, the type of infusion, the container containing these medicines, and the like. For example, the amount of infusion in a syringe pump ranges from 1 ml to several thousand ml, and the driving time required for infusion ranges from several minutes to several hours or more.

  In many cases, the above-mentioned infusion device sets the numerical value by pressing a film switch or the like while viewing a liquid crystal screen. Since the film switch is operated by detecting the pressing force, if the configuration is such that the numerical value of the predetermined unit amount is changed by a single pressing operation, it cannot cope with the range of the set numerical value described above. It takes a lot of time to set numerical values. For this reason, there are those that are configured to continuously change the numerical value by pressing and holding the switch, and those that can shorten the numerical value setting time by providing multiple switches corresponding to the number of digits Has been.

JP2012-205736

  In medical devices, setting of numerical values is often performed while displaying changed numerical values on a liquid crystal display screen or the like. In the configuration in which the numerical value is continuously changed by continuously pressing the switch, the set numerical value is changed at a constant speed. When the change speed is set to be large with respect to the change amount, it becomes difficult to visually recognize the change in the numerical value displayed on the screen, and it becomes difficult to turn off the switch when the predetermined numerical value is reached. On the other hand, when the numerical change speed is low, the set time increases. Usually, the change speed is often set in advance according to the type of the set numerical value, the change amount of the numerical value, and the like. However, when the range of the set numerical value is large depending on the patient or the like, there is a problem that it takes a long time to set the numerical value because the change speed of the numerical value is smaller than the change range of the numerical value.

  On the other hand, in the case of providing a plurality of switches corresponding to the number of digits of the numerical value, the numerical value can be set in a short time even when the numerical value setting range is large, but the user must operate a large number of switches. There is a problem that the numerical value setting operation becomes troublesome. In addition, if a switch corresponding to a large digit is mistakenly operated, the numerical value to be set is set to a value that is significantly different from the appropriate numerical value, and there is a problem that the risk of incorrect operation becomes very large. . Further, since the number of operation switches corresponding to the number of digits is required, the area of the operation plate and the like is increased.

The present invention, the above problem is solved, it is possible to perform in a short time setting of the numerical value definitive infusion pump, the numerical setting operation hardly occurs erroneous operation, also, there is no possibility that the space such that a switch is increased infusion It is an object to provide a numerical value setting switch system for a pump .

The present invention includes an operation switch that can change the output signal by detecting the push pressure, comprising a display unit for displaying setting numerical value is changed by the operation switch, to inject fluids into the patient from the infusion container containing an infusion The present invention relates to a numerical setting switch system for an infusion pump . A numerical value setting switch system includes a numerical value setting control means for displaying the setting numerical value on the display device and changing the change value of the setting numerical value through the output signal, and an initial value of the setting numerical value. And an initial value setting means for setting an initial value of the change speed of the set numerical value, an initial value storage means for storing the initial values, an identification means for identifying characteristics including at least the volume of the infusion container, and the setting Based on the operation storage means for storing the operation history of the operation switch when the numerical value is set, and the operation data stored in the operation storage means and / or information obtained from the identification means, the initial value of the set numerical value, Setting adjustment means capable of adjusting an initial value of the change speed of the setting numerical value. The numerical value setting control means controls to increase the changing speed of the set numerical value displayed on the display device when the pressing force increases, and when the pressing force is constant, the changing speed of the set numerical value. Is controlled to be constant, and when the pressing force decreases, control is performed so as to decrease the changing speed of the set numerical value .

  In the present invention, the changing speed of the set numerical value is changed according to the pressing force of the switch. For this reason, even if the setting range of the numerical value is large, it is possible to change to a desired numerical value in a short time.

  In addition, a wide range of numerical values can be set quickly with only two switches, a switch for increasing the set value and a switch for decreasing the set value. Therefore, the numerical value setting operation is simplified as compared with the case where a plurality of switches corresponding to the number of digits are provided. In addition, compared with the case where a plurality of switches corresponding to the number of digits are provided, the possibility of erroneous operation is significantly reduced and safety is high. Further, it is not necessary to provide a plurality of switches having different numbers of digits, and it is not necessary to provide a large space on the operation plate for providing the switches.

  The numerical value setting control means is configured to change the changing speed of the set numerical value and display the set numerical value on the display device via the output signal.

  When the pressing force increases, the numerical value setting control means is controlled to increase the changing speed of the setting numerical value displayed on the display device. When the pressing force is constant, the changing speed of the setting numerical value Can be controlled to be constant, and when the pressing force decreases, control can be performed to decrease the change speed of the set numerical value.

  The magnitude of the change speed of the numerical value for a predetermined pressing force is determined by the type of medical device, the range of the set numerical value, and the like. Moreover, even if it is the same medical device, it can vary according to a use mode and the kind of numerical value set. It is desirable that the numerical value changing speed is configured to be automatically set according to the use mode and the type of numerical value to be set.

  On the other hand, if the change speed of the numerical value is changed proportionally (linearly) to the pressing force in the entire range of the applied pressing force, the change of the changing speed may become too large or too small. . Further, the change in pressing force felt by the user is different from the actual change in pressing force. Further, in the case of using a resistance change according to the elastic deformation amount of rubber or the like, the elastic characteristics of the rubber often change over a long period of time. For this reason, it is preferable to set a range of the pressing force effective for changing the numerical change speed. In addition, in the vicinity of the upper limit value and the lower limit value of the effective pressing force range, the change rate of the numerical value changing speed can be set to decrease.

  When continuously changing the set numerical value, it is difficult to set the predetermined numerical value if the changing speed is high. For this reason, in the final stage of numerical value setting, it is preferable that the numerical value can be changed according to the number of times the switch is pressed.

  In the present invention, the numerical value setting control means is controlled so as to change the set numerical value by a certain amount when the pressing force is applied for less than a predetermined time, while the pressing force is applied when the pressing force is applied for the predetermined time or more. Accordingly, the set numerical value can be changed at a predetermined change speed. In other words, the set numerical value is changed stepwise by repeating the pressing operation for a short time, while the set numerical value is continuously changed by applying the pressing force continuously, and further according to the increase or decrease of the pressing force. The speed of the numerical value change is increased or decreased.

  When the above configuration is adopted, the setting value can be changed by combining the operation of changing the numerical value of the unit amount according to the number of times the operation switch is pressed and the operation of continuously changing the numerical value according to the pressing time and the pressing force. Can be performed. For example, it is possible to change the set time of 1 minute by performing a pressing operation of less than 0.5 seconds once regardless of the pressing force, while a pressing operation of 0.5 seconds or more can be performed with a predetermined pressing force. When performed, the time can be changed at a speed of 10 minutes per second of the operation time of 0.5 seconds or more. With the above configuration, a desired time can be easily set in a short time. Furthermore, during the pressing operation for 0.5 seconds or more, the numerical value setting operation can be performed in a shorter time by configuring so that the changing speed is increased by further increasing the pressing force.

  There is no particular limitation on the amount of change in the numerical value that can be changed by a single switch operation when the pressing force is applied for less than the predetermined time, and the time for performing the above operation. It can be set to a required value according to the setting range of numerical values and items.

  The operation switch may be configured to include a pressure-sensitive sensor whose resistance changes according to the amount of elastic deformation, and may be configured to convert the resistance change into the output signal and output it. In order to convert the resistance change into an output signal, various conversion means can be employed. The kind of the pressure sensor is not particularly limited. For example, as the pressure-sensitive sensor, a pressure-sensitive rubber whose resistance changes according to the amount of deformation, or a pressure-sensitive sensor using resistance change due to strain such as a Whitstone bridge can be employed.

  The operation switch is configured to be able to detect a pressing force. However, in many cases, a required output cannot be obtained as it is. For example, in the case of an operation switch using pressure-sensitive rubber, an output signal is generated using the resistance change of the pressure-sensitive rubber. However, the resistance change of the pressure-sensitive rubber does not change linearly with the pressing force. For this reason, when the electrical output due to the resistance change is sent to the numerical value setting control means as it is, the numerical value may not be changed smoothly. In addition, the variation in the resistance change of the pressure sensitive rubber is large depending on the switch. Furthermore, the pressure-sensitive rubber changes in elasticity and the like when used for a long time, and it is difficult to maintain the initial resistance change characteristic. For this reason, it is often impossible to output a required output signal corresponding to the pressing force as it is.

  In order to solve the above problem, it is preferable to provide output signal adjusting means for adjusting the output signal. For example, when the resistance change with respect to the pressing force of the pressure-sensitive rubber does not change proportionally, the output due to the resistance change can be adjusted to be changed proportionally. Also, the pressing force can be configured to change stepwise in proportion to the pressing force. In addition, it is not necessary to change the said output proportionally with respect to pressing force, and the aspect of a change can be set according to a numerical value or a medical device. Further, it is preferable to adjust the output signal in accordance with the pressing feeling of the user.

  Further, when pressure-sensitive rubber or the like is used, there are many variations in the resistance change with respect to the pressing force. Also, the resistance characteristics often change due to deterioration of the rubber. The output signal adjusting means is preferably configured to correct the variation so as to make the switch characteristics constant and to adjust a resistance change due to rubber deterioration or the like by a calibration operation or the like. It is also possible to store an operation history, detect a change in characteristics based on the operation history, adjust this, and output an output signal.

The numerical value setting switch system of the infusion pump according to the present invention can be configured to include a first operation switch that increases the set value and a second operation switch that decreases the set value . In the present invention, since the entire range can be operated with the two switches described above, it is possible to set a small space for providing the switches as compared with the case where a plurality of switches corresponding to the number of digits are provided. . In addition, there is less risk of misidentifying the switch or operating it incorrectly.

The numerical value setting switch system for the infusion pump can be configured to include an initial value setting means for setting an initial value including the set numerical value, and an initial value storage means for storing the initial value.

The initial value such as the set numerical value is set according to the type of the infusion pump , the setting item, and the like, and is stored in the initial value storage means. The initial value setting means reads and sets various initial values from the storage means when starting the infusion pump , displays the initial values of the set numerical values on the display device, and then performs numerical setting work according to the present invention. (Numerical value change work) is performed.

The operation storage means can include a previous operation storage means for storing the previous operation and an operation history storage means for storing an operation history before the previous operation. Medical devices used in hospital wards such as syringe pumps often perform the same operation multiple times on the same patient. For this reason, it is possible to quickly set a numerical value by storing a setting numerical value or the like in the previous operation storage means. In addition, by storing past operation history, grasp the operation mode in each department where the infusion pump is used, etc., perform statistical processing, etc., and feed back to the initial value etc. It can be used to speed up the setting. Further, it is possible to provide setting adjustment means for adjusting the initial value of the setting numerical value and the numerical value changing speed from the operation history stored in the operation storage means. As a result, it is possible to optimize the numerical value setting operation according to the type of the target numerical value. Furthermore, when an accident occurs, it can also be used to verify whether the infusion pump has been used properly.

Items stored as the operation history are not particularly limited. For example, the initial value and final set value at the start of switch operation, the number and type of switch operations to reach the set value, the change in pressing force in each switch operation, the amount of change in the value in each switch operation The time required for setting the set numerical value can be stored. The setting adjustment means can be configured to adjust the initial value of the numerical value, the change speed of the numerical value, and the like according to each operation of the operation switch from the operation history information. By providing the setting adjusting means, it is preferable that the initial setting or the like corresponding to the usage status of each infusion pump is automatically performed.

  For example, in the previous operation, when two or more switch pressing operations are required until the final set value, the difference between the set value reached by the first switch operation and the final set value ( The overshoot amount or the shortage amount with respect to the set value in the first operation) is detected and stored as operation history information, and the initial change speed and pressing force of the value in the second and subsequent operations based on the difference in the above values It can be configured to adjust the rate of increase of the change rate with respect to.

  Specifically, when an adjustment coefficient corresponding to the overshoot amount is set for the numerical increase switch and the overshoot amount Z1, the initial numerical increase speed S1, and the next numerical increase speed S2 are set, S2 = S1− (Z1 X adjustment coefficient). As a result, the next change speed is reduced, and the overshoot amount can be reduced. Similarly, when there is an insufficient amount, it can be adjusted in the same manner. Thereby, when performing the same operation, the next operation time can be shortened based on the previous operation information. The above control example is an example, and various initial values can be adjusted based on the previous operation. Further, it is possible to store an operation history for setting a predetermined numerical value, calculate an average value such as the overshoot amount, and set an initial value.

The type of medical device to which the switch system according to the present invention can be applied is not particularly limited. For example, the present invention can be applied to an infusion device such as an infusion pump.

  When applied to the infusion device, the set numerical value may be 1 or 2 or more of the infusion volume, the driving time, and the infusion speed. In addition, it is desirable to include an identification means for identifying characteristics including at least the capacity of the infusion container. Then, an initial value such as a set numerical value corresponding to the type and volume of the infusion container is stored in the storage means. Thereby, it becomes possible to set a required numerical value rapidly corresponding to an infusion container. In addition, erroneous operations and the like can be prevented.

  The configuration of the operation switch is not particularly limited. For example, the operation switch can be configured using a sheet-like pressure sensitive rubber. The operation switch may include an operation unit provided with the pressure-sensitive rubber or the like, and the operation unit may be configured to be elastically displaced according to a pressing force acting on the operation unit. For example, the operation switch can be provided on an elastically biased lever, and the lever can be displaced by a pressing force acting on the operation switch. By adopting this configuration, it is possible to easily recognize the pressure acting on the switch, and to allow the user to recognize the pressing force.

The numerical value setting method of the infusion pump according to the present invention displays the numerical value to be set on the display device, and operates the operation switch that can detect the pressing force and change the output signal, and thereby via the output signal. And a numerical value setting step of setting a required numerical value by changing the changing speed of the setting numerical value displayed on the display device.

  When the pressing force is applied for less than a predetermined time, the operation switch changes the set numerical value by a certain amount. On the other hand, when the pressing force is applied for a predetermined time or longer, the operating switch is set at a predetermined changing speed according to the pressing force. Is continuously changed.

  When the pressing force increases, the change speed of the set numerical value displayed on the display device is increased. When the pressing force is constant, the change speed of the set numerical value is kept constant and the pressing force decreases. In this case, it is possible to control so as to reduce the change speed of the set numerical value.

  Further, it is desirable that an operation history when the set numerical value is set is stored, and an initial value of the numerical value corresponding to each switch operation and a change speed of the set numerical value are adjusted from the operation history.

For example, the infusion pump or a syringe pump for injecting an infusion into the patient from the infusion container containing an infusion, the numerical value setting method to set the injection rate of the infusion case, the capacity of the infusion container to be attached to the infusion pump A setting adjustment step of adjusting an initial value of the set numerical value set by the initial value setting means and an initial value of a changing speed of the set numerical value from the detecting step and the volume of the infusion container and / or the operation history And, from the initial value of the setting value set in the setting adjustment step, the required value is set while changing the changing speed of the setting value displayed on the display device according to the change in the pressing force. And the numerical value setting step.

  It is desirable to provide a step of converting a signal output from the operation switch into a signal of a required form, and to perform control based on the converted signal.

  The set value for the infusion pump can be set quickly and erroneous operation can be prevented.

It is a front view of a syringe pump to which the present invention is applied. It is a top view of the syringe pump shown in FIG. It is a figure which shows an example of the screen of the display means of the syringe pump shown in FIG.1 and FIG.2. It is a figure which shows each means of the numerical value setting switch system of the syringe pump shown in FIG. It is a figure which shows an example of a structure of the numerical value setting control means shown in FIG. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the flowchart of the control performed by each means shown in FIG.4 and FIG.5. It is a figure which shows the conversion form of the output signal in an output signal adjustment means. It is a figure which shows the conversion form of the output signal in an output signal adjustment means. It is a figure which shows an example of numerical value change progress in the numerical value setting operation in this invention. It is a figure which shows an example of numerical value change progress in the numerical value setting operation in this invention. It is a figure which shows an example of numerical value change progress in the numerical value setting operation in this invention. It is a figure which shows an example of numerical value change progress in the numerical value setting operation in this invention. It is a figure which shows an example of numerical value change progress in the numerical value setting operation in this invention. It is a figure which shows an example of numerical value change progress in the numerical value setting operation in this invention.

  Embodiments of the present invention will be specifically described below with reference to the drawings. In this embodiment, the present invention is applied to an infusion syringe pump. 1 to 3 show an outline of a syringe pump to which the present invention is applied.

  The syringe pump 1 is equipped with a syringe 2 holding an infusion solution (medical solution), and pushes the pusher 4 held in the outer cylinder 3 of the syringe 2 so as to be slidable in the axial direction, thereby discharging the infusion solution. Configured as follows.

  The syringe 2 includes the outer cylinder 3 for storing an infusion, an oblong flange portion 5 formed to extend outward in the radial direction at a base end portion of the outer cylinder 3, and the outer cylinder from the base end portion. 3 and the above-described pusher 4 that is slidably inserted into the inside. The syringe 2 is entirely formed by resin molding. A discharge port 3 a to which the infusion tube 21 is connected is formed at the distal end portion of the outer cylinder 3. A pusher flange portion 13 is provided at the base end portion of the pusher 4.

  The syringe pump 1 holds the syringe outer cylinder holding means 6, 9, 12 for holding the outer cylinder 3 of the syringe 2 and the pusher flange portion 13 of the pusher 4, and pushes the syringe cylinder 1. Pushing means 10 for discharging the chemical solution is provided.

  The syringe outer cylinder holding means according to the present embodiment includes an outer cylinder holding portion 6 configured by providing a mounting surface 6 a having a substantially cylindrical inner surface for holding the outer surface of the outer cylinder 3 of the syringe on the housing upper surface of the syringe pump 1. The flange holding groove 9 formed between the standing wall portions 7 and 8 provided on the base end side of the outer cylinder holding portion 6 and capable of inserting and locking the flange portion 5; and the syringe outer cylinder 3 described above. A pinching lock mechanism 12 capable of pinching and holding the mounting surface 6a is provided.

  The pushing means 10 is driven by a driving device configured to include a slider 10a configured to move in the axial direction by rotating a driving screw (not shown) by a motor. The slider 10a holds the flange portion 13 of the pusher 4 and is axially moved to discharge the infusion contained in the outer cylinder 3 from the discharge port 3a to the infusion tube 21. Let

  The pinching lock mechanism 12 includes an arm portion 12a that holds the outer cylinder 3 with the mounting surface 6a. The arm portion 12a is configured to be able to elastically clamp the outer cylinder 3, and detects the outer diameter of the syringe 2 by detecting the rotation angle of the arm portion 12a. Is configured. The syringe identification means 51 can be configured to include a variable resistor (not shown) that changes resistance according to the rotation angle of the arm portion 12a.

  On the upper surface of the syringe pump 1 is provided an operation panel 23 having a display means 58 for displaying a set numerical value and various operation switches. The display means 58 is composed of an LED display device. Further, a numerical value increase switch 31 and a numerical value decrease switch 32 for setting a numerical value displayed on the display means 58 are provided on the side of the display means 58. The switches 31 and 32 are film switches. The syringe pump 1 is provided with various switches (not shown) such as a power switch.

  In FIG. 4, the outline | summary of each means of the drive control system which operates the said syringe pump 1 is shown.

  The syringe pump 1 according to the present embodiment is provided with various means for performing the drive control. Each means is configured as a computer program and a database using a microcomputer and a memory.

  The drive unit control unit 54 includes a circuit for driving the drive unit 55 such as the motor, and drives the motor and the like until an item set by the numerical value setting control unit 53 reaches a predetermined set value. Configured as follows. The drive unit control means 54 may be of a known configuration including a control circuit that controls the drive speed of the motor.

  As described above, the syringe identifying means 51 is used for measuring the outer diameter of the syringe 2 by detecting the rotation angle of the arm portion 12a, identifying the syringe 2, and detecting the capacity and the like. In the present embodiment, the syringe identification means 51 can be configured to include a variable resistor (not shown) that changes resistance according to the rotation angle of the arm portion 12a. In addition, the syringe identification means 51 is not limited to the thing of the said structure. For example, an image reading device may be provided on the lower surface or side surface of the syringe placement unit, and a symbol, a barcode, or the like written on the syringe outer cylinder may be read and identified.

  Data detected by the syringe identifying means 51 is sent to the numerical value setting control means 53. And the kind and capacity | capacitance of a syringe are identified by collating with the data memorize | stored in the syringe data storage means 52. FIG. The syringe data storage means 52 stores initial values such as set numerical values according to the type and volume of the syringe. Then, as shown in FIG. 3, an initial value corresponding to the set value of the required item is displayed on the display means 58.

  After the initial numerical value is displayed on the display means 58, the numerical value increase switch 31 or the numerical value decrease switch 32 is pressed to increase or decrease the numerical value displayed on the display means 58 to a target numerical value. After the target numerical value is displayed on the display means 58, an infusion start switch (not shown) is turned on to start the infusion operation. It is desirable to provide means for detecting whether a required operation has been performed on the set numerical value, and to drive the infusion device until the numerical value displayed on the display means 58 is reached.

  In the present embodiment, the operation storage unit 59 includes a previous operation storage unit 59a that stores previous operation data, and an operation history storage unit 59b that stores past operation history up to the previous time. Note that an operation history including the previous operation can be integrally stored.

  The syringe pump 1 is often used repeatedly for the same patient using the same medicine or container. The previous operation storage means 59a stores an operation history being executed and numerical values adjusted by the adjustment means described below so that the next operation can be fed back to each adjustment means and setting means when performing the same operation. Can be configured. For example, in the same operation for the same patient, setting a numerical value stored in the syringe data storage unit 52 may take extra time for setting. By setting the optimal initial value or the like from the previous operation stored in the previous operation storage means 59a or using the previously adjusted set numerical value as the initial value, the numerical value is set quickly. be able to.

  The operation history storage means 59b stores the type of switch operation performed in the past up to the previous time, the time, the set numerical value, the amount of the changed numerical value, etc., and the optimum initial value or the like from these data as necessary. Is sent to the numerical value setting control means 53, and used to change and set the initial value read from the syringe data storage means 52. In addition, a past operation history is stored, and a document for examining whether or not the syringe pump 1 has been used properly is provided. The operation history storage unit 59b can sequentially collect and store operation data from the numerical value setting control unit 53 and the like, perform statistical processing as necessary, and adjust the initial numerical value read from the syringe data storage unit 52. It can also be configured as follows. In addition, the past data can be statistically processed and used to change the data stored in the syringe data storage means to the optimum data.

  Since the numerical increase switch 31 and the numerical decrease switch 32 are film switches using pressure-sensitive rubber, the resistance change with respect to the pressing force does not change linearly. Also, the resistance change characteristics and the resistance itself change over time due to the deterioration of the rubber and the like. The output signal adjustment means 81 and 82 are configured to adjust the signals output from the numerical value increase switch 31 and the numerical value decrease switch 32 to a required output signal according to the pressing force. The output signal adjusting means 81 and 82 can be configured to change the output signal with respect to the pressing force proportionally (linearly), or can be configured to change stepwise according to the pressing force. it can.

  FIG. 5 shows a schematic configuration of the numerical value setting control means 53. The numerical value setting control means 53 is provided with respective means 61 to 70 for setting or adjusting numerical values displayed on the display means 58 and instructing the driving unit control means 54 to drive the set numerical values. Yes.

  Each setting unit 61 to 65 shown in FIG. 5 is configured as an initial value setting unit 72 that sets initial values of various numerical values from the measurement data from the syringe identification unit 51 and the data stored in the syringe data storage unit 52. The

  The initial numerical value setting means 61 sets an initial numerical value displayed on the display means 58. The numerical addition amount setting means 62 sets the numerical addition amount for the pressing of the numerical increase switch 31 for a predetermined time or less. The numerical subtraction amount setting means 63 sets a numerical subtraction amount for pressing the numerical value reduction switch 32 for a predetermined time or less. That is, the numerical addition amount setting means 62 and the numerical subtraction amount setting means 63 set initial values of numerical values that are changed by a single operation of the switch. The numerical increase speed setting means 64 sets the numerical increase speed when the numerical increase switch 31 is pressed for a predetermined time or longer. The numerical value reduction speed setting means 65 sets the numerical value reduction speed when the numerical value reduction switch 32 is pressed for a predetermined time or longer. That is, the numerical increase speed setting means 64 and the numerical decrease speed setting means 65 set the initial value of the numerical decrease speed. The numerical values set by the respective means are set corresponding to the types of the numerical values (types of setting items, etc.) based on the data stored in the syringe data storage means 52. Note that two or more data stored in the syringe data storage means 52 can be stored for the same syringe. For example, even if the syringe has the same capacity, the syringe data is stored according to the type of the drug, etc., and when performing the infusion, it is selected from the chemical liquid display (not shown) and the initial value for the required drug is set. it can.

  Each of the adjusting units 66 to 70 shown in FIG. 5 is configured as a numerical value adjusting unit 71 that adjusts the initial value of each numerical value set by the numerical value setting unit 72 based on the data stored in the operation storage unit 59. The

  The initial numerical value adjusting means 66 is a means for adjusting an initial set numerical value displayed on the display means 58 sent from the syringe data storage means 52. Since the numerical value setting operation is performed by changing the initial setting numerical value, the operation time can be shortened by setting the initial setting numerical value in the vicinity of the target setting numerical value. For example, when the same operation is performed on the same patient as the previous operation, various numerical values used in the previous operation can be read from the previous operation storage unit 59a and set as an initial value or the like. When the same syringe and medicine are used in the operation history storage unit 59b, there is an operation history in which the difference between the initial numerical value displayed on the display unit 58 and the numerical value after setting is a predetermined value or more. The initial value displayed on the display means 58 can be configured to use a numerical value in the vicinity of a numerical value set in the past as the initial value.

  The numerical value addition amount adjusting means 67 and the numerical value subtraction amount adjusting means 68 are used for the numerical values set in the numerical value addition amount setting means 62 and the numerical value subtraction amount setting means 63 for one time less than a predetermined time based on the operation history. The amount of numerical values added or subtracted by the pressing operation is adjusted. Similarly to the initial setting numerical value adjusting unit 66, the amount of numerical values to be added or subtracted is adjusted based on the previous operation.

  The numerical increase speed adjusting means 69 and the numerical decrease speed adjusting means 70 are used to set numerical change speeds (increase speed and decrease speed) set in the numerical increase speed setting means 64 and the numerical decrease speed setting means 65, respectively. Adjustment is made based on data stored in the previous operation storage unit 59a and operation history storage unit 59b.

  6 to 16 show flowcharts according to an embodiment of numerical value setting control in the syringe pump 1. Each flowchart is in the stage of setting numerical values, and before entering the operation in the flowchart, a power switch operation (not shown) is performed, and various information such as drug solution information and patient information is input. Can be configured. The information can be configured to be manually input from an input screen (not shown), or can be configured to be input from a barcode, an IC tag, a wireless communication unit, or the like.

  First, the outer diameter of the syringe 2 set in the syringe pump 1 is measured by the syringe identification means 51 to identify the syringe 2 (S101), and the initial numerical value setting means 61 is read from the syringe data storage means 52. The required initial value corresponding to the outer diameter and the like of the syringe 2 is read (S102). Each initial value is an initial value such as a set numerical value and a change speed (increase speed, decrease speed) to be set in the present application, and is stored in the syringe data storage means 52 in advance.

  When it is not necessary to adjust the initial value (the value to be set and displayed on the display unit) (NO in S103), the initial value read from the syringe data storage unit 52 as shown in FIG. The numerical value is displayed on the display means 58 (S105). In the operation storage means 59, the previous operation history and the previous operation history are stored, and when the initial value needs to be adjusted (YES in S103), the initial value setting means 61 reads the information. After adjusting the initial value (S104), the adjusted initial value is displayed on the display means 58 (S105). For example, when the same amount of the same medicinal solution is administered to the same patient as the previous operation, the last set numerical value or a numerical value in the vicinity can be displayed as the initial numerical value on the display means 58.

  The person who performs the operation determines whether the initial numerical value displayed on the display means 58 is less than the target numerical value or exceeds the target numerical value (S106). In the case of the target numerical value, although not shown, the setting is completed without performing a switch operation. For example, when using under exactly the same conditions as the previous use, the setting value can be changed by configuring the setting value for the previous use stored in the previous operation storage means to be displayed as the initial value. You can start using it.

  If the initial value stored in the syringe data storage means 52 is less than the target value (YES in S106), the numerical value increasing switch 31 is pressed (S107). On the other hand, when the target numerical value is exceeded (NO in S106), the numerical value reduction switch 32 is pressed (branch to A in FIG. 10, S201).

  Hereinafter, the case where the numerical value increase switch 31 is pressed will be described in order.

  When the numerical value increasing switch 31 is pressed (S107), the pressing time t of the switch is measured, and when the pressing time t is pressed for a predetermined time T or more (YES in S108), the pressing force is measured (S109). . On the other hand, when the pressing time t is less than the predetermined time T (NO in S108), as shown in FIG. 14, the numerical value addition amount setting means 62 reads the initial value of the addition amount from the syringe data storage means 52. (S301). Then, it is determined whether or not the above-mentioned addition amount needs to be adjusted (S302). If no adjustment is necessary (NO in 302), the read initial value is set as the addition amount (S304) and displayed. The added amount is added to the numerical value and displayed (S305). On the other hand, if it is determined that the adjustment of the addition amount is necessary (YES in S302), the addition amount is adjusted (S303), the addition amount is set (S304), and the adjusted addition amount is set to the displayed numerical value. Are added and displayed (S305). The addition amount is adjusted based on data stored in the operation storage unit 59. For example, when the addition amount is adjusted in the previous operation procedure, the numerical addition amount adjustment means 67 is changed from the previous operation storage means 59 for the same operation using the same drug solution and syringe when the patient is the same. The previous addition amount is read and set as an initial value. The method for adjusting the addition amount and the subtraction amount is not particularly limited. For example, if the pressing operation of the numerical value increase switch 31 for less than a predetermined time is required 10 times before the final numerical value is set, the amount of addition reaches the target numerical value in 5 times by the next pressing operation. Can be configured to adjust.

  Thereafter, it is determined whether or not the target numerical value has been reached by the above operation (S306). If the target numerical value has been reached (YES in S306), the numerical value increase switch is turned OFF and a predetermined numerical value is set (S307). . If the target numerical value cannot be set (NO in S306), the process returns to H shown in FIG. 6 to determine again whether the displayed numerical value is less than the target numerical value (S106), and the following steps are performed.

  When the numerical value increase switch 31 is operated for a predetermined time T or longer (YES in S106), control for continuously changing the numerical value is performed. The syringe data storage means 52 stores an initial numerical increase speed corresponding to the pressing force, and the initial numerical increase speed is read by the numerical increase speed setting means 64 as shown in FIG. 7 (S110).

  Next, with reference to the previous operation history stored in the operation storage means 59, it is determined whether or not the initial numerical value increase rate needs to be adjusted (S111). When adjustment is not performed in the previous operation history, such as when using for the first time, it is determined that it is not necessary to adjust the initial numerical value increase speed (NO in S111), and the read initial numerical value increase The speed is set to the initial value of the numerical value increasing speed (S114), and continuous numerical value change is started (S115). On the other hand, when the numerical increase rate needs to be adjusted, the numerical increase rate is adjusted from the previous operation or the like using the numerical increase rate adjusting means 69. For example, it is necessary to adjust the numerical increase speed when the numerical setting for the same syringe takes a predetermined time or more in the past operation history, or when the number of pressing operations of the numerical increase switch exceeds a predetermined number. It can be configured to be determined.

  The method for adjusting the increasing speed of the numerical value is not particularly limited. When injecting the same medicine to the same patient using the same syringe, the increase rate of the previous operation stored in the previous operation storage means 59a can be applied. In the case of the same operation as the previous time, it is configured to input the fact from an input screen (not shown) or the like.

  Further, when different from the previous operation, the numerical increase rate can be adjusted based on the data stored in the operation history storage means 59b. For example, when a numerical value increase switch and a numerical value decrease switch are used in the past operation for the same syringe, that is, when there is a change operation of increasing or decreasing the set numerical value, the final value is determined from the numerical value at the turning point. An error up to the set numerical value is calculated, and this error is stored in the operation history storage means 59b. When the same medicine is infused next using the same syringe, the adjustment coefficient corresponding to the error stored in the syringe data storage means 52 is read (S112), and the error is multiplied by the adjustment coefficient. A value is calculated, and this value is added to or subtracted from the initial numerical increase speed to adjust the numerical increase speed (S113), and the numerical value is set as the numerical increase speed (S114). Thereafter, continuous numerical value change is started (S115). The adjustment coefficient is set to be larger as the error becomes larger. When the error is larger, the change speed becomes larger. For this reason, the speed which reaches | attains a setting numerical value increases, and a setting numerical value can be set rapidly.

  Even after the numerical value change is started, the pressing force of the numerical value increasing switch 31 and the numerical value decreasing switch 32 is measured, and each data of the presence / absence of the switch pressing operation, the pressing time, and the pressing force is described above. It is sent to the numerical value setting control means 53, and each means of the numerical value setting control means 53 is configured to set or adjust the numerical value. The change in the pressing force is also stored in the operation storage means 59.

  As shown in FIG. 7, when the pressing force does not change during the continuous numerical value change (NO in S116), the same numerical increase rate is maintained. If the target numerical value is reached (YES in S117), the numerical value increase switch operation is terminated (S118), and the set numerical value is set.

  When the increase switch 31 is turned off with a value that is not the target value (YES in S119), it is determined whether or not it is less than the target value (S120). If it is less than the target value, the process returns to I in FIG. The increase switch is turned on (S107), and the following steps are repeated.

  When the increase switch 31 is turned off beyond the target numerical value (NO in S120), the numerical value decrease switch 32 shown in FIG. 10 is changed in the same manner as when the display numerical value in FIG. 6 exceeds the target value (NO in S106). The ON operation is performed (S201).

  Hereinafter, steps when the numerical value reduction switch shown in FIG. 10 is turned on will be described in order.

  When the numerical value decrease switch 32 is pressed and turned ON (S201), the pressing time is measured and the pressing time t is pressed for a predetermined time T or more as in the case of the pressing operation of the numerical value increasing switch 31. (YES in S202), the pressing force is measured (S203). On the other hand, when the pressing time t is less than the predetermined time T (NO in S202), the initial value of the subtraction amount is read from the syringe data storage unit 52 by the numerical subtraction amount setting unit 63 as shown in FIG. (S321). Then, it is determined whether or not the initial value of the subtraction amount needs to be adjusted (S352). When it is determined that the subtraction amount needs to be adjusted (YES in S352), the initial value of the subtraction amount is adjusted ( In S353, the subtraction amount is set (S354), and the subtraction amount is subtracted from the displayed numerical value and displayed (S355). The adjusted subtraction amount is stored in the operation storage means 59. In the case where the short-time operation of the numerical value reduction switch 32 is continuously performed a plurality of times, it is desirable that the same subtraction amount be applied. It is determined whether the target numerical value has been reached by the above operation (S356). If the target numerical value has been reached (YES in S356), the numerical value reduction switch is turned OFF and a predetermined numerical value is set (S307). If the target numerical value cannot be set (NO in S356), the process returns to H shown in FIG. 6 to determine again whether the displayed numerical value is less than the target numerical value (S106), and the following steps are performed.

  As shown in FIG. 10, when the numerical value reduction switch 32 is operated for a predetermined time or longer (YES in S202), control for continuously changing (decreasing) the numerical value is performed. The syringe data storage means 52 stores the initial value of the numerical reduction rate corresponding to the syringe 2 and the pressing force, and the initial value of the numerical reduction rate is read by the numerical reduction rate setting means 65 (S204). ).

  Next, as in the case where the numerical value increase switch 31 is operated, it is determined whether or not the initial numerical value decrease rate needs to be adjusted with reference to the previous operation history stored in the operation storage unit 59 ( S205). When adjustment is not performed in the previous operation history, such as when used for the first time, it is determined that there is no need to adjust the initial numerical value reduction speed (NO in S205), and the read initial numerical value change speed is The initial value of the numerical value change speed is set (S208), and continuous numerical value change is started (S209). On the other hand, when it is necessary to adjust the initial numerical value reduction rate (YES in S205), the numerical value reduction rate is adjusted from the previous operation or the like. Thereafter, the adjusted value is set as the numerical value reduction rate (S208), and the numerical value change is started (S208).

  The method of adjusting the numerical value decrease rate can be performed in the same manner as the numerical value increase switch operation (S112 to S113 in FIG. 7). That is, when the same medicine is injected into the same patient using the same syringe, the numerical value reduction rate used in the previous operation can be applied. In the case of the same operation, it is configured to input to that effect from an input screen (not shown) or the like.

  On the other hand, if the numerical value increase switch and the numerical value decrease switch are used in the past operation, that is, if there is a change operation of increase or decrease of the set value, the error from the value at the turning point to the final set value is This error is calculated and stored in the previous operation storage means 59a or the operation history storage means 59b. Then, when the same syringe is infused next using the same syringe, the adjustment coefficient corresponding to the error stored in the syringe data storage means 52 is read (S206), and the error is multiplied by the adjustment coefficient. A value is calculated, and this value is added to or subtracted from the initial numerical decrease rate to adjust the numerical decrease rate (S207), and the numerical value is set as the numerical decrease rate (S208). Then, continuous numerical value change is started (S209). The adjustment coefficient is set to be larger as the error becomes larger. When the error is larger, the change speed becomes larger. For this reason, the speed which reaches | attains a setting numerical value increases, and a setting numerical value can be set rapidly.

  Similarly to the case of the numerical value increase switch, the pressing force of the numerical value decrease switch 32 is measured even after the numerical value change is started, and the presence / absence of the switch pressing operation, the pressing time, the pressing time, and the like. Each data of pressure is sent to and stored in the operation storage means 59, and each means of the numerical value setting control means 5353 can be configured to set or adjust a numerical value. As shown in FIG. 11, when the pressing force does not change in the course of the continuous numerical decrease (NO in S210), the same numerical value changing speed is maintained. When the target numerical value is reached (YES in S211), the switch operation of the numerical value reduction switch 32 is finished (S212), and the set numerical value is set. When the pressing force of the numerical decrease switch 32 decreases or increases (YES in S210), the numerical decrease speed is increased or decreased as shown in FIGS. 12 and 13 (S501, S602). For example, as shown in FIG. 12, after the numerical value reduction speed is decreased and the numerical value change is continued (S501), it is determined whether or not the target numerical value has been reached (S502). The operation of the decrease switch 32 ends. On the other hand, when the numerical value reduction switch 32 is turned OFF without reaching the target numerical value (S504), it is determined whether or not the displayed numerical value exceeds the target numerical value (S505), and when the numerical value is exceeded (YES in S505). Returning to FIG. 10A, the numerical value reduction switch 32 is operated (S201), and the subsequent steps are repeated. On the other hand, if it is less than the target numerical value (NO in S505), the process returns to I in FIG. 6 to press the numerical value increasing switch 31 (S107), and the subsequent steps are repeated.

  If the numerical value reduction switch 32 is turned OFF without reaching the target numerical value (YES in S213), it is determined whether the target numerical value is exceeded (S214). If the target numerical value is exceeded (YES in S214), FIG. Returning to A, the decrement switch 32 is turned ON again (S201), and the following steps are repeated. On the other hand, when it is less than the target numerical value (NO in S214), the process returns to I in FIG. 6, the numerical value increasing switch 31 is pressed (S107), and the subsequent steps are repeated.

  In addition, when the pressing force of S210 of FIG. 11 is increased, the control shown in FIG. 13 is performed. The flowchart in FIG. 13 is the same as the flowchart shown in FIG. 12 except that the numerical value reduction rate is increased, and thus the description thereof is omitted.

  FIGS. 16 a and 16 b show an example of the details of the steps in the numerical increase speed adjusting means 69 and the numerical decrease speed adjusting means 70. Note that the flowchart shown in FIG. 16 shows a case where the numerical value change speed is too large and the numerical value displayed on the display means 58 has an excessive amount. And / or the rate of numerical reduction can be adjusted.

  First, the case where the numerical value increase switch is operated first will be described. As shown in FIG. 16A, when the setting value is not continuously changed by the value increase switch 31 (NO in S801), the change speed is not adjusted for the value increase switch 31 (S807).

  If there has been an operation of continuously increasing the numerical value by the numerical value increasing switch 31 (YES in S801), it is determined whether there has been an operation of decreasing the return numerical value by the decreasing switch (S802). If there is an operation of decreasing the return numerical value by the decrease switch 32 (YES in S802), it is determined that the numerical increase rate is too large and an excessive amount has occurred, and the numerical increase rate of the numerical increase switch 31 is adjusted. In the present embodiment, when there is no return numerical value reduction by the decrease switch, the initial numerical value increase speed of the increase switch 31 is not adjusted (S808). However, even when the operation is interrupted with a numerical value equal to or smaller than the set numerical value, the numerical value changing speed can be similarly adjusted.

  First, the overshoot amount Z1 is calculated by subtracting the set value from the overshoot value (S803). The syringe data storage means 52 stores in advance an adjustment coefficient corresponding to the overshoot amount at various syringes and a predetermined injection speed, and reads an adjustment coefficient corresponding to the overshoot amount Z1 (S804). Note that the reading of the adjustment coefficient corresponds to the adjustment coefficient reading (S112) in FIG.

  Thereafter, the adjustment amount of the numerical increase rate (Z1 × adjustment coefficient) is calculated by multiplying the adjustment coefficient by the excess amount Z1 (S805). Then, the change speed is adjusted by subtracting the adjustment amount (Z1 × adjustment coefficient) from the previous increase speed of the increasing switch (S806). Step S806 corresponds to step S113 in FIG. The adjustment of the numerical value increase speed can be performed during the numerical value setting operation of the syringe pump 1 or can be calculated at the previous operation and stored in the operation storage unit 59.

  Next, a case where the decrement switch is operated first will be described.

  As shown in FIG. 16B, when the decrease switch 32 is operated first, the numerical decrease speed is adjusted in the same manner as when the numerical increase switch 31 is operated first. When there is no numerical value reduction operation by the numerical value reduction switch 32 (NO in S851), the numerical value reduction speed of the numerical value reduction switch 32 is not adjusted (S857).

  If there has been a continuous numerical decrease operation by the numerical decrease switch 32 (YES in S851), it is determined whether or not a return numerical increase operation has been performed by the numerical increase switch 31 (S852). When there is a return numerical value increase operation by the numerical value increase switch 31, it is determined that the numerical decrease rate is too large and an excessive amount is generated, and the numerical decrease rate of the decrease switch 32 is adjusted. In this embodiment, when there is no return numerical value increase operation by the increase switch, the initial numerical value decrease speed of the decrease switch 32 is not adjusted (S858). However, even when the operation is interrupted with a numerical value equal to or smaller than the set numerical value, the numerical value decreasing speed can be adjusted similarly.

  Similarly to the case where the numerical value increase switch 31 is operated first (a), the set numerical value is subtracted from the excessive value to calculate the excessive amount Z2 (S853). The syringe data storage means 52 stores in advance an adjustment coefficient corresponding to the overshoot amount at various syringes and a predetermined injection speed, and reads an adjustment coefficient corresponding to the overshoot amount Z2 (S854). Note that the reading of the adjustment coefficient corresponds to the adjustment coefficient reading (S206) in FIG.

  Thereafter, the adjustment amount of the numerical reduction speed (Z2 × adjustment coefficient) is calculated by multiplying the adjustment coefficient by the excess amount Z2 (S855). Then, the above-mentioned adjustment amount (Z2 × adjustment coefficient) is subtracted from the previous numerical decrease speed of the numerical decrease switch, thereby adjusting the numerical decrease / decrease speed (S856). Step S856 corresponds to the step S207 in FIG.

  Next, functions of the output signal adjusting means 81 and 82 shown in FIG. 4 will be described with reference to FIGS.

  In the present embodiment, film switches whose resistance values change according to changes in the pressing operation force are employed as the numerical value increase switch 31 and the numerical value decrease switch 32.

  In each of the switches described above, the resistance change does not change in proportion to the pressing force. For example, the resistance changes as indicated by broken lines in FIGS. For this reason, when the value of the resistance change is output as it is as an output signal, there is a sense of incongruity between the pressing feeling of the operator and the change speed. Moreover, the characteristic of the resistance change changes with a change in the elastic modulus of the rubber due to long-term use.

  As shown in FIG. 17, in this embodiment, the output signal adjusting means 81, 82 converts the output signal (broken line) due to the resistance change before adjustment into a linear output signal (solid line), and then the above numerical values. It can be configured to be sent to the setting control means 53. In addition, in order to respond to the user's feeling, it is possible to set a minimum pressing force for generating an output signal and to set a maximum pressing force that makes the output signal constant when a predetermined pressure or more is applied.

  Further, the conversion mode of the output signal of the switch is not particularly limited, and it can be configured to change stepwise corresponding to the change of the pressing force as shown in FIG. Note that the number of change speeds when the numerical value change speed is changed stepwise is not particularly limited, and may be two or more.

  By providing the output signal adjusting means 81 and 82, it is possible to obtain an operational feeling corresponding to the pressing feeling of the user, and it is also possible to adjust variations in the characteristics of the film switch constituting the switch. . It should be noted that the operation history storage means 59b preferably stores data such as a pressing force and a numerical value change speed in the past operation, and calibrates every predetermined period.

  19 to 23 are graphs showing the progress of the numerical value change according to the embodiment.

  FIG. 19 shows a case in which only the numerical value increase switch 31 is used and the numerical value is set by continuously changing the numerical value. As shown in FIG. 19, the numerical value is continuously increased by pressing the numerical value increase switch 31 for a predetermined time or longer (area a1). In the area a1, the initial numerical increase rate is low, so that the set time is increased as it is. For this reason, the increasing speed of the numerical value is increased by increasing the pressing force (region a2). Thereby, the set time to the vicinity of the target numerical value can be reduced. When the target value is approached, the increasing speed of the numerical value is reduced by reducing the pressing force (a3). Thereby, the precision of setting operation increases and a numerical value can be set to a required target value.

  FIG. 20 shows a case where the numerical value is continuously changed, and the numerical value increase switch 31 is turned OFF by a numerical value equal to or smaller than the target value by an operation.

  As shown in FIG. 20, when the numerical value increasing switch 31 is pressed, the numerical value increases continuously (region b1). In the area b1, the initial numerical increase rate is low, so that the set time is increased as it is. For this reason, as in the case shown in FIG. 19, the increasing speed of the numerical value is increased by increasing the pressing force (region b2). Thereby, the set time to the vicinity of the target numerical value can be reduced. However, when the change speed of the numerical value is large, it may be considered that the finger is released from the numerical value increasing switch 31 before the target value and turned OFF (region b3). In such a case, as described above, when the numerical value increase switch is subsequently pressed for a predetermined time or more from the previous operation or the past operation history, the numerical increase speed is adjusted, and then when the increase switch is pressed, b1 Control is performed so as to change the numerical value at a numerical increase rate smaller than the numerical increase rate in the region (region b4). Thereby, a target numerical value can be set easily.

  FIG. 21 shows a case where the target value is exceeded when the numerical value is continuously changed. Note that the present embodiment also shows a case where the numerical value is continuously changed. In the area c1 in FIG. 20, the numerical value changing speed is small as in FIGS. 19 and 20, so that the pressing force is increased halfway to increase the numerical increase speed (area c <b> 2). When the numerical increase speed in the area c2 is too large, the numerical increase switch 31 is turned OFF with the numerical value exceeding the target value (area c3). From the OFF state of the increase switch (region c3), the numerical value switch 32 is switched to perform a pressing operation (region c4). The numerical decrease rate in the area c4 is adjusted by the numerical decrease rate adjusting means 70 so as to keep the numerical decrease rate low. For this reason, a predetermined target numerical value can be set easily.

  FIG. 22 shows a case where the numerical value is continuously changed and a case where the numerical value is changed by a unit amount according to the number of times the switch is pressed by a short time switch operation. Similar to the embodiment shown in FIG. 21, when the pressing force is increased to increase the numerical increase speed (area d2), the increase switch 31 may be turned off before the target value. When the difference from the target numerical value is small, the predetermined target numerical value can be easily set by performing the short time pressing operation of the increase switch 31 a plurality of times (d3 to d5). The amount of numerical addition due to the pressing operation of the numerical value increase switch 31 within a predetermined time can also be adjusted from the past operation history.

  FIG. 23 shows a case where the numerical value increase switch 31 is turned OFF by a numerical value exceeding the target numerical value by performing the same operation as in FIG. 21 (e1, e2). In this case, when it is near the target numerical value, the predetermined target numerical value can be easily set by switching to the numerical value reduction switch 32 and performing a pressing operation for a short time (e3 to e5).

  FIG. 24 shows another example of the numerical value updating process according to the present invention.

  In the embodiment shown in FIG. 24, the numerical value changing speed is increased in three stages by increasing the pressing force after the numerical value increasing switch 31 is turned on (f1, f2, f3). Thereafter, when the value exceeds the target value, the numerical value increase switch 31 is turned OFF and the numerical value decrease switch 32 is turned ON to decrease the numerical value (f4). At this time, the value obtained by turning off the numerical value increase switch 31 is stored in the operation storage means 59 as an upper limit value. Further, the numerical decrease speed of the numerical decrease switch 32 is set to a speed smaller than the increase speed of the numerical increase switch 31. When the numerical value reduction switch 32 is turned OFF with a numerical value smaller than the target numerical value by pressing the numerical value reduction switch 32 to reduce the numerical value, the value obtained by turning the numerical value reduction switch 32 OFF is set as the lower limit value. The data is stored in the storage unit 59. Next, the numerical value increase switch 31 is operated to increase the numerical value (f5). At this time, the numerical value change is controlled by the operation of the numerical value increase switch 31 so as not to exceed the upper limit value. Thereby, it is possible to shorten the time for approaching the target numerical value. The above control is performed until the target numerical value is reached. That is, the numerically changeable range is gradually reduced. For this reason, the time until the target numerical value is reached is shortened.

  In a medical device such as a syringe pump, the initial value in the numerical value setting operation is set to be smaller than the set numerical value in order to ensure safety. For this reason, the normal increase switch is configured to be operated first. In the embodiment shown in FIG. 19 to FIG. 24, the case where the numerical value increase switch 31 is operated first is shown, but the same control is performed when the numerical value decrease switch 32 is operated first in another medical device or the like. It can be configured as follows.

  The present invention is not limited to the above embodiment. The embodiment is an example of the present invention, and the invention described in the claims is not limited to the contents described in the above embodiment.

  It is possible to provide a medical device numerical setting switch system capable of quickly and safely performing numerical setting of medical devices.

31 Operation switch (value increase switch)
32 Operation switch (Numeric value reduction switch)
58 Display means (display device)
53 Numerical setting control means

Claims (9)

An operation switch that can change the output signal by detecting the push pressure, numerical values of infusion pump for injecting comprising a display unit for displaying setting numerical value is changed by the operation switch, an infusion from the infusion container containing an infusion to a patient A setting switch system,
Numeric value setting control means for displaying and setting the set numerical value on the display device while changing the changing speed of the set numerical value via the output signal ;
An initial value setting means for setting an initial value of a set numerical value displayed on the display device and an initial value of a changing speed of the set numerical value;
Initial value storage means for storing each of the initial values;
Identification means for identifying characteristics including at least the volume of the infusion container;
Operation storage means for storing an operation history of the operation switch when a predetermined set numerical value is set;
A setting adjustment unit capable of adjusting an initial value of the setting numerical value and an initial value of a changing speed of the setting numerical value based on operation data stored in the operation storage unit and / or information obtained from the identification unit;
The numerical value setting control means
When the pressing force increases, control to increase the change speed of the set value,
When the pressing force is constant, the change speed of the set value is controlled to be constant,
A numerical value setting switch system for an infusion pump that controls to decrease the changing speed of the setting value when the pressing force decreases . The numerical value setting control means
When the pressing force is applied for a predetermined time or less, the set numerical value is controlled to be changed by a certain amount,
2. The numerical setting switch for an infusion pump according to claim 1 , wherein when the pressing force is applied over the predetermined time, the setting numerical value is controlled to be continuously changed at a predetermined changing speed in accordance with the pressing force. system. The operation switch includes a pressure-sensitive sensor whose resistance changes according to the amount of elastic deformation,
The numerical setting switch system for an infusion pump according to claim 1, wherein the resistance change is converted into the output signal and output. 4. The numerical setting switch system for an infusion pump according to claim 1, comprising: a first operation switch that increases the set numerical value; and a second operation switch that decreases the set numerical value. 5. . The numerical value setting switch system for an infusion pump according to any one of claims 1 to 4 , further comprising an output signal adjusting unit that adjusts an output signal from the operation switch. The operation storage means includes an initial value and a final setting value of the set value at the start of the switch operation, the number and types of switch operations reaching the final set value , and a change in the pressing force in each switch operation. And operation history information including the amount of change in each switch operation and the time required for setting the final set numerical value,
The setting adjusting means adjusts the initial value of the set numerical value and the initial value of the changing speed of the set numerical value according to each operation of the operation switch from the operation history information and / or information obtained from the identifying means. A numerical value setting switch system for an infusion pump according to any one of claims 1 to 5 . In the stored previous infusion operation, when the operation storage means requires two or more switch pressing operations until the final setting value, the setting value reached by the first switch operation and the final value While detecting and memorizing the difference (overshoot or deficiency) between
In the next infusion operation, the setting adjustment means calculates the rate of increase or decrease in the numerical value change speed in the second and subsequent switch pressing operations when the predetermined setting value is not reached in the first switch pressing operation. The numerical setting switch system for an infusion pump according to claim 6 , wherein the numerical setting switch system is configured to increase or decrease based on the difference . By displaying a set numerical value on the display device and operating an operation switch that can detect a pressing force and change an output signal, the set numerical value displayed on the display device is displayed via the output signal. A numerical value setting method for an infusion pump including a numerical value setting step for setting a required numerical value while changing a change speed ,
The infusion pump has an initial value setting means for setting an initial value including an initial value of the set numerical value and an initial value of a change speed of the set numerical value;
Operation storage means for storing the operation history of the operation switch when setting the required numerical value,
Detecting the volume of the infusion container attached to the infusion pump;
A setting adjustment step for adjusting the initial value of the set numerical value set by the initial value setting means and the initial value of the change speed of the set numerical value from the volume of the infusion container and / or the operation history;
The required numerical value is set while changing the changing speed of the set numerical value displayed on the display device according to the change in the pressing force from the initial value of the set numerical value set in the setting adjustment step. Including a numerical value setting process,
In the above numerical setting process,
If the pressing force increases, increase the change speed of the set value,
When the pressing force is constant, keep the changing speed of the set value constant,
A method for setting a numerical value of an infusion pump , which is controlled so as to decrease a changing speed of the set numerical value when the pressing force decreases . The operation switch changes the set numerical value by a certain amount when the pressing force is applied for less than a predetermined time,
The method for setting a numerical value of an infusion pump according to claim 8 , wherein when the pressing force acts for a predetermined time or longer, the setting numerical value is continuously changed at a predetermined change speed according to the pressing force.

Images