Liquid medicine administration pump and control method of liquid medicine administration pump

Abstract

To provide a liquid medicine administration pump capable of administering medicine to a patient on the basis of appropriate order information.SOLUTION: A liquid medicine administration pump includes a pump body, notification means, acquisition means for acquiring order information including a prescription order for injection to a patient from outside, and control means for operating the pump body on the basis of the order information. The order information includes a flow rate of liquid medicine administered to the patient by the injection, the body weight of the patient, the concentration of the liquid medicine, and a setting range of the administration speed of the liquid medicine. The liquid medicine administration pump further includes input reception means for receiving input for changing the body weight. When the body weight is changed, the control means calculates the administration speed on the basis of the flow rate, the concentration and the body weight after change. If the calculated administration speed does not fall within the setting range, the control means causes the notification means to perform a prescribed notification.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a liquid medicine dispensing pump and a method for controlling the liquid medicine dispensing pump. [Background technology]

[0002] Conventionally, systems for administering a medicinal liquid to a patient have been known. For example, Japanese Patent Laid-Open Publication No. 2003-225305 (Patent Document 1) discloses an infusion system as such a system, which includes a server, a mobile terminal, an automatic infusion device for administering an infusion to a patient, a wristband worn by the patient, and a label attached to an infusion bag filled with the infusion.

[0003] More specifically, a barcode representing a patient ID is printed on the wristband. A barcode including an order ID is printed on the label. The server stores infusion order information. The infusion order information includes a patient ID assigned to each patient, an order ID assigned to the infusion to be administered to the patient based on an instruction sheet created by a doctor, and information about the contents of the infusion other than the patient ID and the order ID.

[0004] The mobile terminal acquires a patient ID and an order ID by reading the barcode on the wristband and the barcode on the label with a barcode reader attached to the mobile terminal. The mobile terminal searches for specific infusion order information having both the acquired patient ID and order ID, and acquires the searched specific infusion order information from a server. The automated infusion device is configured to start an infusion based on the infusion order information only when the specific infusion order information associated with the mobile terminal is searched for. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2003-225305 A Summary of the Invention [Problem to be solved by the invention]

[0006] A liquid medicine such as midazolam, for example, may be administered to a patient using a liquid medicine administration pump such as the automatic infusion device disclosed in Patent Document 1. In the case of such liquid medicine, the order information includes, in addition to the flow rate (amount administered per unit time), information on the patient's weight and the set range of the liquid medicine (medicine) administration rate.

[0007] However, the weight of a patient is easily changed. Therefore, in a liquid medicine administration pump that receives order information for administering a drug from an external source, if the weight of the patient included in the order information can be updated in the liquid medicine administration pump, it would be convenient for medical staff. However, if the weight value is changed, there is a risk that the administration speed will not fall within the set range.

[0008] The present disclosure provides a liquid medicine administration pump and a method for controlling the liquid medicine administration pump that are capable of administering a drug to a patient based on appropriate order information. [Means for solving the problem]

[0009] According to an aspect of the present disclosure, a liquid medicine administration pump includes a pump body, an alarm means, an acquisition means for externally acquiring order information including a prescription order for an injection for a patient, and a control means for operating the pump body based on the order information. The order information includes a flow rate of the liquid medicine to be administered to the patient by injection, the patient's weight, the concentration of the liquid medicine, and a set range of the administration rate of the liquid medicine. The liquid medicine administration pump further includes an input receiving means for receiving an input for changing the weight. When the weight is changed, the control means calculates the administration rate based on the flow rate, the concentration, and the changed weight. When the calculated administration rate is not within the set range, the control means causes the alarm means to execute a predetermined alarm.

[0010] The control method for a liquid medicine administration pump includes a step in which a processor of the liquid medicine administration pump externally acquires order information including a prescription order for an injection for a patient, and a step in which the processor operates a pump body of the liquid medicine administration pump based on the order information. The order information includes a flow rate of the liquid medicine administered to the patient by injection, the patient's weight, a concentration of the liquid medicine, and a set range of an administration rate of the liquid medicine. The control method for a liquid medicine administration pump further includes a step in which the processor accepts an input for changing a value of the weight, a step in which, if the weight is changed, the processor calculates an administration rate based on the flow rate, the concentration, and the changed weight, and a step in which, if the calculated administration rate is not within the set range, the processor causes an alarm means to execute a predetermined alarm. Effect of the Invention

[0011] According to the present disclosure, it becomes possible to administer medication to a patient based on appropriate order information. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram showing a configuration of a medical system. [Diagram 2] FIG. 13 is a diagram showing a user interface displayed on a smartphone. [Diagram 3] FIG. 13 is a diagram showing details of order information. [Figure 4] 11 is an explanatory diagram for explaining the internal processing in the infusion pump when the weight and the flow rate are changed in the infusion pump. FIG. [Diagram 5] FIG. 2 is a block diagram for explaining the specific configuration of a smartphone and an infusion pump. [Figure 6] FIG. 4 is a flow chart for explaining a process flow in an infusion pump. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In the following description, the same members are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[0014] Fig. 1 is a diagram showing a configuration of a medical system. As shown in Fig. 1, the medical system 1 includes a smartphone 10 as an example of an information processing device, and an infusion pump 20 as an example of a liquid medicine administration pump. The information processing device is not limited to the smartphone 10, but may be any portable device such as a tablet terminal. The liquid medicine administration pump is not limited to an infusion pump, but may be another pump such as a syringe pump.

[0015] The smartphone 10 communicates with the infusion pump 20. The smartphone 10 performs wireless communication with the infusion pump. The smartphone 10 performs near field communication (NFC) with the infusion pump 20. In this example, the smartphone 10 communicates with the infusion pump 20 using Felica (registered trademark), which is a Type-F of NFC.

[0016] The smartphone 10 has a built-in reader / writer for Felica. The reader / writer has a control board and an antenna. The infusion pump 20 is equipped with Felica Link. The infusion pump 20 has a built-in contactless integrated circuit card for Felica (FeliCa Plug). The contactless integrated circuit card has an integrated circuit chip and an antenna.

[0017] In this example, by bringing the smartphone 10 operating as a reader / writer close to the infusion pump 20 operating as a tag, short-range wireless communication is performed between the smartphone 10 and the infusion pump 20. The reason why the smartphone 10, rather than the infusion pump 20, has a built-in reader / writer is that the smartphone 10 also performs short-range wireless communication with a plurality of other pumps (not shown) in the same way as the infusion pump 20.

[0018] The infusion pump 20 includes a plurality of operation buttons and a display. Each operation button is operated by a doctor or a nurse (hereinafter, also referred to as a "healthcare professional"). For example, the operation buttons can be used to input various setting items such as the flow rate, planned amount, and accumulated amount of medicinal fluid. The operation buttons can also be used to instruct the infusion pump 20 to start and end operations.

[0019] Specifically, the infusion pump 20 includes, as examples of operation buttons, a start button 236, a menu button 237, a flow rate setting button 238, and a numerical value setting button group 239. The numerical value setting button group 239 includes a button for changing the hundreds digit, a button for changing the tens digit, and a button for changing the ones digit.

[0020] In this example, the smartphone 10 receives order information Q from a server device (not shown). The smartphone 10 transmits the order information Q to the infusion pump 20 by the above-mentioned short-range wireless communication. The order information Q is a block of data. The order information Q is a frame (packet). The order information Q may be data called a segment, a datagram, or a message. The infusion pump 20 receives the order information Q.

[0021] Although details will be described later, upon receiving the order information Q, the infusion pump 20 sets various setting items based on the order information Q. For example, the infusion pump 20 automatically sets the flow rate, planned amount, cumulative amount, etc. of the medicinal liquid. In this way, in the medical system 1, input of various setting items of the infusion pump 20 is automated.

[0022] Fig. 2 is a diagram showing a user interface displayed on the smartphone 10. As shown in Fig. 2, the tablet terminal displays a screen G1 on the touch screen 130. The screen G1 includes an object image 135 indicating setting information and a selectable object image 136 indicating "Transfer of order information". The setting information includes designated values ​​of setting items.

[0023] The object image 135 includes information based on the order information Q. In this example, "Heparin Sodium Injection N5000 Single" is displayed as the "Drug Name" in the object image 135. "265.0 mL" and "10 mL / h" are displayed as the "Scheduled Volume" and "Flow Rate", respectively, in the object image 135. Note that hidden information based on the order information Q can be displayed by the medical staff's scroll operation.

[0024] When the medical professional selects the object image 136 with the finger 900, the smartphone 10 transmits the order information Q to the infusion pump 20. As a result, the smartphone 10 can transfer the order information Q of the medicinal fluid (medicine) written in the electronic medical record to the infusion pump.

[0025] FIG. 3 is a diagram showing the details of order information Q. A plurality of pieces of information are written in order information Q. As shown in FIG. 3, order information Q has a header section and a data section. The header section has seven pieces of information. The data section has 17 pieces of information. Note that the data section, excluding the order ID and patient ID, corresponds to the prescription order for an injection for the patient. In this way, order information Q includes the prescription order for an injection for the patient.

[0026] Specifically, the following information is written in the header section, in that order, from the corresponding first positions: "model number", "device number", "command number", "request number", "data size", "data section checksum", and "header section checksum".

[0027] In the data section, the following information is written in this order from the corresponding first position: "Order ID", "Patient ID", "Drug name", "Pharmacological category", "Administration rate unit", "Administration rate", "Height (cm)", "Weight (kg)", "Body surface area", "Drug amount", "Solution volume (mL)", "Scheduled amount (mL)", "Flow rate (mL / h)", "Limiter information: soft upper limit", "Limiter information: soft lower limit", "Limiter information: hard upper limit", and "Limiter information: hard lower limit". In this example, the drug name includes drug concentration information.

[0028] The numbers increase in the order of hard lower limit, soft lower limit, soft upper limit, and hard upper limit. The "hard lower limit (upper limit)" is a condition that must be strictly observed (a limiting condition), while the "soft lower limit (upper limit)" indicates a condition that is more lenient than the "hard lower limit (upper limit)."

[0029] As described above, 24 pieces of information can be stored in the order information Q. Note that, when transmitting from the smartphone 10 to the infusion pump 20, all of the 24 pieces of information do not need to be written in the order information Q. Also, the types of information stored in the order information Q are not limited to those described above. For example, the order information Q may include information on the planned administration time of the medicinal liquid. In this example, the order information Q may or may not include information on the administration rate.

[0030] The infusion pump 20 is configured to be able to change the order information Q. For example, the infusion pump 20 accepts operations (manual input operations by a medical professional) to change various setting items such as flow rate, planned amount, weight, height, etc.

[0031] 4 is an explanatory diagram for explaining the internal processing of the infusion pump 20 when the weight and the flow rate are changed in the infusion pump 20. As an example, it is assumed that the flow rate included in the order information Q obtained from the smartphone 10 is "10 mL / h". It is assumed that the weight included in the order information Q is "60.5 kg".

[0032] In this example, the limiter information (soft upper limit) and limiter information (soft lower limit) included in the order information Q indicate the set range (mg / kg / h) of the administration rate of the liquid medicine. Specifically, the limiter information (soft upper limit) and limiter information (soft lower limit) are 1.9C×10 -2 (mg / kg / h), 1.6C x 10 -2 (mg / kg / h). In other words, the set range of drug administration rate (mg / kg / h) is 1.9C×10 -2 (mg / kg / h) to 1.6C x 10 -2 (mg / kg / h). C is the mass percent concentration (%). For example, C is 0.1%.

[0033] The infusion pump 20 calculates the flow rate setting range (upper and lower limits) based on the administration rate setting range, and allows the flow rate to be changed within the calculated flow rate setting range. For convenience of explanation, this example focuses on the administration rate setting range, and the flow rate setting range is not explained.

[0034] As described above, the unit of the administration rate setting range (hereinafter also referred to as the "setting range SR") is specified as "mg / kg / h" in this example, taking into consideration the patient's weight. Depending on the drug (medicinal solution), μg, ng, etc. may be used instead of mg. Similarly, min (minute) may be used instead of h (hour). Some types of medicinal solutions, such as physiological saline solution, have the administration rate unit "mL / h", which is the same as the flow rate.

[0035] Before starting treatment, the doctor calculates the flow rate in advance based on the basic administration rate for the drug, taking into account the concentration of the drug and the patient's weight. The calculated flow rate is written into the order information Q. In this example, the explanation will be given for drugs whose administration rate is in units of "mg / kg / h", not "mL / h".

[0036] As shown in FIG. 4, the flow rate of 10 (mL / h) included in the order information Q is calculated by the doctor based on the basic administration rate, as described above. Therefore, when the administration rate (mg / kg / h) is calculated using the body weight of 60.5 (kg), the concentration (%), and the flow rate (mL / h) included in the order information Q, the above-mentioned basic administration rate is obtained, as shown as state (P). In other words, the administration rate is obtained by converting the flow rate to an administration rate using the body weight and the concentration. Specifically, as shown in FIG. 4, the administration rate is obtained by multiplying the flow rate by 100 times the concentration and dividing by the body weight. More specifically, in this example, the administration rate (value after conversion) is 10×C / 100 / 60.5 (≈1.65C×10 -3 ) and, unless the doctor makes a prescription error, the administration rate will naturally be within the set range SR of the administration rate described above.

[0037] However, the weight included in the order information Q may not be the latest value. Even adults' weight changes from day to day. Children may also suddenly gain weight during their growth period. Considering the latest weight (current weight), the administration rate may not fall within the set range SR (mg / kg / h) mentioned above at the flow rate (mL) included in the order information Q. Below, we will explain cases where the administration rate falls within the set range SR even if the weight is changed, and cases where the administration rate does not fall within the set range SR if the weight is changed.

[0038] Assume that the patient's latest weight was 56.5 kg. In other words, the actual weight was 4 kg less than the weight included in the order information Q. In this case, the administration rate is calculated based on the flow rate of 10 (mL / h) and the latest weight and concentration, as shown as status (Q): 10×C / 100 / 56.5 (≒1.77C×10 -3 ) (mg / kg / h). Although the weight has changed, the administration rate at the changed weight is within the set range SR. Therefore, there is no problem in updating the weight value included in the order information Q in the infusion pump 20.

[0039] Assume that the patient's latest weight was 64.5 kg. In other words, the actual weight was 4 kg more than the weight included in the order information Q. In this case, the administration rate is calculated based on the flow rate of 10 (mL / h) and the latest weight and concentration, as shown in the status (R), as 10×C / 100 / 64.5 (≒1.55C×10 -3 ) (mg / kg / h). Due to the change in body weight, the administration rate at the changed body weight is outside the set range SR.

[0040] In such a case, the medical staff operates the infusion pump 20 to change the value of the flow rate (mL) in the order information Q. For example, the medical staff increases the flow rate to, for example, 10.5 (mL / h). In this case, when the administration rate is calculated based on the changed flow rate of 10.5 (mL / h) and the latest weight and concentration, the result is 10.5×C / 100 / 64.5 (≈1.63C×10 -3 ) (mg / kg / h).

[0041] Therefore, the administration rate when the flow rate is changed as described above is within the set range SR. In this manner, even if the administration rate is not within the set range SR when the weight value included in the order information Q is updated to the latest value in the infusion pump 20, the administration rate can be brought within the set range SR by changing the flow rate value of the order information Q in the infusion pump 20.

[0042] 5 is a block diagram for explaining specific configurations of the smartphone 10 and the infusion pump 20. First, the smartphone 10 will be explained, and then the infusion pump 20 will be explained.

[0043] 5, the smartphone 10 includes a control unit 110, a storage unit 120, a touch screen 130, a communication IF (Interface) 140, and a reader / writer 150. The touch screen 130 includes a display 131 and a touch panel 132.

[0044] The control unit 110 is a functional block realized by a processor executing an operating system and various application programs stored in a storage unit 120 corresponding to a memory. The storage unit 120 includes a volatile memory and a non-volatile memory.

[0045] The control unit 110 controls the overall operation of the smartphone 10. The control unit 110 controls reading data from the storage unit 120 and writing data to the storage unit 120. The control unit 110 accepts input via the touch screen 130. The control unit 110 controls output of the touch screen 130. The control unit 110 communicates data between the communication IF 140 and the reader / writer 150. The control unit 110 sends operation commands to the communication IF 140, the reader / writer 150, etc.

[0046] The communication IF 140 receives the order information Q from the server device. The reader / writer 150 transmits the order information Q to the infusion pump 20. In detail, the reader / writer 150 transfers the order information Q acquired from the server device to the infusion pump 20 by short-range wireless communication.

[0047] The control unit 110 causes various screens to be displayed on the display 131. For example, the control unit 110 causes the display 131 to display the screen G1 shown in FIG.

[0048] The touch panel 132 accepts various user inputs (touch operations). For example, in the example of Fig. 2, the touch panel 132 accepts an operation to select an object image 136. In this case, the smartphone 10 transmits the order information Q acquired from the server device to the infusion pump 20.

[0049] The infusion pump 20 includes a control unit 210, a memory unit 220, an operation key (input receiving unit) 230, a non-contact integrated circuit card (acquisition unit) 240, a display (notification unit) 250, an LED (notification unit) 260, and a pump body 270. The control unit 210 includes an administration speed unit 211 and a determination unit 212. The pump body 270 includes a drive unit 271 that operates a plurality of fingers that press the tube, and the like.

[0050] The control unit 210 is a functional block realized by a processor executing an operating system and various application programs stored in a storage unit 220 corresponding to a memory. The storage unit 220 includes a volatile memory and a non-volatile memory.

[0051] The control unit 210 controls the overall operation of the infusion pump 20. The control unit 210 controls reading data from the storage unit 220 and writing data to the storage unit 220. The control unit 210 controls the output of the display 250 and the output of the LED 260.

[0052] The control unit 210 performs data communication with the contactless integrated circuit card 240. The control unit 210 sends an operation command to the contactless integrated circuit card 240. The contactless integrated circuit card 240 acquires order information Q from the external smartphone 10. The control unit 210 acquires the order information Q via the contactless integrated circuit card 240. The order information Q is stored in the memory unit 220 by the control unit 210. The control unit 210 controls the operation of the pump main body 270 based on the order information Q stored in the memory unit 220.

[0053] The control unit 210 accepts input via the operation keys 230. For example, when a menu button 237 (FIG. 1), which is one of the operation keys 230, is pressed by a medical professional, the control unit 210 causes the display 250 to display a menu screen.

[0054] The menu screen includes an option to change the weight value included in the order information Q. When the option is selected and the numeric value setting button group 239 is operated, the control unit 210 changes the weight value included in the order information Q to a value corresponding to the operation.

[0055] When a medical professional presses a flow rate setting button 238 (FIG. 1), which is one of the operation keys 230, the control unit 210 transitions to a mode for changing the current flow rate. In this mode, when a numerical value setting button group 239 is operated, the control unit 210 sets the flow rate to a value according to the operation.

[0056] When a flow rate setting button 238 (FIG. 1), which is one of the operation keys 230, is pressed by a medical professional, the control unit 210 operates the pump main body 270 based on the order information Q.

[0057] When the weight (kg) is changed by the medical staff as described above, the administration rate unit 211 of the control unit 210 calculates the administration rate using the flow rate (mL / h), the drug concentration, and the changed weight as described above. For example, in the case of the state (R) of Fig. 4, the administration rate unit 211 calculates the administration rate as 10 x C / 100 / 64.5 (mg / kg / h).

[0058] When the flow rate (mL / h) is changed by a medical professional as described above, the administration rate unit 211 calculates the administration rate from the changed flow rate, concentration, and body weight, in the same way as when the body weight is changed.

[0059] The determination unit 212 acquires the administration rate calculated by the administration rate unit 211. The determination unit 212 determines whether or not the administration rate falls within the above-mentioned set range SR of the administration rate (see FIG. 4).

[0060] If the calculated administration rate is not within the set range SR, the control unit 210 displays a predetermined warning on the display 250. The control unit 210 causes the LED 260 to emit light in a predetermined manner. For example, the control unit 210 causes the LED 260 to flash in red. By this notification, the control unit 210 warns the medical staff. By this warning (notification), the medical staff can know that the change in weight and / or flow rate was not appropriate.

[0061] If the calculated administration rate falls within the set range SR, the control unit 210 confirms the weight change and / or the flow rate change in the order information Q, for example, by accepting a confirmation operation.

[0062] As described above, the medical staff can update the patient's weight included in the order information Q in the infusion pump 20. This increases convenience for the medical staff. Furthermore, when the weight value is changed, the infusion pump 20 determines whether the administration rate calculated based on the changed weight falls within the set range SR. If the calculated administration rate does not fall within the set range SR, the infusion pump 20 issues a warning (predetermined notification) to the medical staff. Therefore, the infusion pump 20 makes it possible to administer a drug to a patient based on appropriate order information.

[0063] When the flow rate setting included in the order information Q is changed in the infusion pump 20, the infusion pump 20 executes the same determination process as when the weight is updated. Therefore, even when the flow rate setting is changed, the infusion pump 20 can administer a drug to the patient based on the appropriate order information.

[0064] Fig. 6 is a flow diagram for explaining the flow of processing in the infusion pump 20. As shown in Fig. 6, in step S1, the infusion pump 20 (more specifically, the processor) acquires order information Q from the smartphone 10. In step S2, the infusion pump 20 sets each of the numerical values ​​(flow rate, etc.) of multiple setting items in the infusion pump 20 to the designated values ​​included in the order information Q.

[0065] In step S3, the infusion pump 20 determines whether or not a change in weight included in the order information Q has been accepted. If a change in weight has not been accepted (NO in step S3), in step S4, the infusion pump 20 determines whether or not the start button 236 (FIG. 1) has been pressed. If a change in weight has been accepted (YES in step S3), the infusion pump 20 advances the process to step S6.

[0066] If it is determined that the start button 236 has been pressed (YES in step S4), in step S5, the infusion pump 20 starts administering medication. Specifically, the infusion pump 20 operates the pump body 270. If it is determined that the start button 236 has not been pressed (NO in step S4), the infusion pump 20 advances the process to step S3.

[0067] If a change in weight has been received (YES in step S3), in step S6, the infusion pump 20 calculates the administration rate using the flow rate, the drug concentration (C%), and the changed weight.

[0068] In step S7, the infusion pump 20 determines whether the calculated administration rate falls within the set range SR. If the administration rate falls within the set range SR (YES in step S7), the infusion pump 20 proceeds to step S4. If the administration rate does not fall within the set range SR (NO in step S7), in step S8, the infusion pump 20 uses the display 250 or the like to give a predetermined warning to a medical professional (the operator of the infusion pump 20).

[0069] In step S9, the infusion pump 20 determines whether a change in the flow rate has been received. The infusion pump 20 waits until the flow rate is changed (NO in step S9). When the flow rate is changed (YES in step S9), the infusion pump 20 calculates the administration rate using the changed flow rate, concentration, and changed body weight in step S10. Thereafter, the infusion pump 20 advances the process to step S7.

[0070] <Summary> (1) As shown in Fig. 5, the infusion pump 20 includes a pump body 270, a display 250 and an LED 260 each functioning as a notification unit, a contactless integrated circuit card 240 that acquires order information Q including a prescription order for an injection for a patient from an external device, the smartphone 10, and a control unit 210 that operates the pump body 270 based on the order information Q. As shown in Fig. 3, the order information Q includes the flow rate of the medicinal liquid administered to the patient by injection, the patient's weight, the concentration of the medicinal liquid, and a setting range SR of the administration rate of the medicinal liquid. As shown in Fig. 5, the infusion pump 20 further includes an operation key 230 as an input receiving unit that receives an input for changing the weight.

[0071] When the weight is changed, the control unit 210 calculates the administration rate based on the flow rate, the concentration, and the changed weight. When the calculated administration rate is not within the set range SR, the control unit 210 causes the notification unit to execute a predetermined notification.

[0072] According to the above configuration, the infusion pump 20 can update the patient's weight included in the order information. This increases convenience for medical personnel. In addition, when the weight value is changed, the infusion pump 20 issues a predetermined notification if the administration rate is not within a set range. Therefore, the infusion pump 20 can administer a drug to a patient based on appropriate order information.

[0073] (2) Specifically, the flow rate is defined as a volume per unit time. The administration rate and set range SR are defined as a mass per unit time and unit body weight. When the body weight is changed, the control unit 210 calculates the administration rate using the flow rate, concentration, and changed body weight. As described above, when the calculated administration rate is not within the set range SR, the control unit 210 causes the notification unit to execute a predetermined notification.

[0074] (3) The operation key 230 further accepts a change in the flow rate. When the flow rate and the body weight are changed, the control unit 210 calculates the administration rate using the changed flow rate, concentration, and changed body weight. As described above, when the calculated administration rate is not within the set range SR, the control unit 210 causes the notification unit to execute a predetermined notification.

[0075] According to the above configuration, even if a medical professional changes the flow rate (set value) in addition to changing the weight, the infusion pump 20 calculates the administration rate. Therefore, according to the infusion pump 20, even if the flow rate is changed, it is possible to administer a drug to a patient based on appropriate order information.

[0076] <Modification> (1) In the above, an example was given of a configuration in which the flow rate is changed in accordance with the patient's body weight. However, this is not a limitation. For some drugs, the administration rate may vary depending on the patient's body surface area S (m 2 ) is specified. Specifically, the administration rate is specified in units of "mg / m2" rather than "mg / kg / h". 2 It may be specified as / h".

[0077] If the patient's weight increases, the patient's body surface area also increases in proportion to the increase in weight. Therefore, in this case, the body surface area can be updated by updating the weight. If the patient is in the growth stage, not only the weight but also the height increases. When the height increases, the weight generally increases. In such a case, the body surface area can be updated by updating the weight and height included in the order information Q shown in FIG. 2. Specifically, the control unit 210 of the infusion pump 20 calculates the patient's body surface area S (m 2 ) from the patient's weight W (kg) and height H (cm) based on the following formula (1): 2 ) to calculate

[0078] S=W 0.425 ×H 0.725 ×0.007184 …(1) When the weight and height are changed, the control unit 210 calculates the patient's body surface area using the changed weight and height based on the above formula (1). The control unit 210 calculates the administration rate using the flow rate, concentration, and the calculated body surface area. In this case, too, if the calculated administration rate is not within the set range SR, the control unit 210 causes the notification unit to execute a predetermined notification.

[0079] (2) In the above, the soft upper and lower limits of the limiter information are used as the set range SR of the administration rate, but this is not limited to this. The hard upper and lower limits of the limiter information may be used as the set range SR of the administration rate.

[0080] The setting range SR is not limited to this, and does not have to be specified in the limiter information. An item indicating the setting range SR (for example, an upper limit of the administration rate, a lower limit of the administration rate) may be provided in the data portion of the order information Q (FIG. 3).

[0081] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present disclosure is defined by the scope of the claims, and it is intended to include all modifications within the scope and meaning equivalent to the scope of the claims. [Explanation of symbols]

[0082] 1 medical system, 10 smartphone, 20 infusion pump, 110, 210 control unit, 120, 220 memory unit, 130 touch screen, 131, 250 display, 132 touch panel, 135, 136 object image, 150 reader / writer, 211 administration rate calculation unit, 212 judgment unit, 230 operation key, 236 start button, 237 menu button, 238 flow rate setting button, 239 numerical setting button group, 240 non-contact integrated circuit card, 270 pump body, 900 finger, 140 communication IF.

Claims

1. A drug administration pump, comprising: A pump body; A notification means; An acquisition means for acquiring order information including a prescription order for an injection for a patient from an external source; a control means for operating the pump body based on the order information, the order information includes a flow rate of the medicinal solution to be administered to the patient by the injection, a weight of the patient, a concentration of the medicinal solution, and a setting range of an administration rate of the medicinal solution; The weight change input means is further provided. The control means If the body weight is changed, the administration rate is calculated based on the flow rate, the concentration, and the changed body weight; and a liquid medicine administration pump that causes the notification means to execute a predetermined notification when the calculated administration rate is not within the set range.

2. The flow rate is defined as volume per unit time, and the administration rate is defined as mass per unit time and unit body weight; The control means The drug solution administration pump according to claim 1 , wherein, when the body weight is changed, the administration rate is calculated using the flow rate, the concentration, and the changed body weight.

3. The input receiving means further receives a change in the flow rate, The control means 3. The liquid medicine administration pump according to claim 2, wherein when the flow rate and the body weight are changed, the administration rate is calculated using the changed flow rate, the concentration, and the changed body weight.

4. the order information further includes a height of the patient; The input receiving means further receives a change in the height, The administration rate is defined by mass per unit time and unit body surface area, The control means if the weight and the height are changed, calculating a body surface area of ​​the patient using the changed weight and the changed height; The liquid medicine administration pump according to claim 1 , wherein the administration rate is calculated using the flow rate, the concentration, and the body surface area.

5. A method for controlling a drug solution administration pump, comprising: A processor of the drug injection pump externally acquires order information including a prescription order for an injection for a patient; and operating a pump body of the drug solution administration pump based on the order information by the processor; the order information includes a flow rate of the medicinal solution to be administered to the patient by the injection, a weight of the patient, a concentration of the medicinal solution, and a setting range of an administration rate of the medicinal solution; receiving an input by the processor to change the weight value; if the weight is changed, the processor calculates the administration rate based on the flow rate, the concentration, and the changed weight; The method for controlling a drug solution administration pump further comprises a step in which, when the calculated administration rate is not within the set range, the processor causes an alarm means to execute a predetermined alarm.

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