JP2016195829A - Portable injection device and control method for portable injection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable injection device capable of starting injection immediately after having a storage medium inserted therein.SOLUTION: A portable injection device 1 of the present invention can have an injection pump 2 for injecting liquid medicine attached thereto and a storage medium 3 inserted therein, and includes: an attachment part 11 to which the injection pump 2 is attached; a slot 31 into which the storage medium 3 is inserted; a drive unit 17 connected to the injection pump 2; a reading unit 102 for reading an injection protocol of the liquid medicine from the storage medium 3; a control unit 100 for controlling the drive unit 17 and the reading unit 102. The control unit 100 controls the drive unit 17 in such a manner that injection quantity and speed of the liquid medicine are changed according to the injection protocol.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a portable injection device and a control method for the portable injection device, and more particularly to a portable injection device into which a storage medium can be inserted and a control method for the portable injection device.

  Conventionally, as a portable infusion device, there has been a portable infusion pump equipped with an infusion rate setting device (Patent Document 1). This infusion rate setting device is operated by a medical worker in consideration of the patient's condition and the medicine to be administered so as to obtain an optimum infusion rate for the patient.

JP 2001-245975 A

  However, since the conventional injection device requires an operation by a doctor who is a medical worker, it is limited to use in the hospital or within a range that can be monitored by the doctor. Therefore, the movement range of the patient who is a user has been limited. In addition, an injection protocol for chemicals created to increase, decrease, or maintain the injection rate, injection volume, injection time, etc. within a certain period of time, or to temporarily stop injection, is injected according to medical chart information or doctor's instructions. It was necessary to input to the speed setter. Specifically, a drug injection protocol was created in consideration of the patient's weight, height, body surface area, sex, lesion site, and the like, and this injection protocol was input to the injection rate setting device. Therefore, it took time to prepare for injection including creation and input of the injection protocol. In addition, since preparations for injection other than input are performed at the same time, an input error due to a large number of work steps may occur.

  In order to solve the above problems, the present invention is a portable infusion device in which an infusion pump for injecting a chemical solution can be mounted and a storage medium can be inserted, and a mounting portion for mounting the infusion pump; A slot for inserting the storage medium; a driving unit connected to the infusion pump; a reading unit for reading the injection protocol of the chemical solution from the storage medium; and a control unit for controlling the driving unit and the reading unit. The control unit controls the driving unit so as to change the injection amount or the injection speed of the chemical solution according to the injection protocol.

  The present invention also provides a mounting unit for mounting an infusion pump for injecting a chemical solution, a slot for inserting a storage medium, a drive unit connected to the infusion pump, and a reading for reading an injection protocol for the chemical solution from the storage medium. And a controller for controlling the driving unit and the reading unit, wherein the injection protocol is read from the inserted storage medium, and the drug solution is read according to the injection protocol There is provided a control method for a portable injection device, wherein the drive unit is controlled so as to change an injection amount or an injection speed of the injection device.

  According to the present invention, it is possible to create a medical solution injection protocol based on medical chart information of an electronic medical record or the like or a doctor's instruction or the like and store it in a storage medium in advance. Thus, the injection can be started immediately just by inserting the storage medium into the portable injection device. This eliminates the need to calculate and input an injection protocol immediately before injection. Moreover, it is possible to prevent an input error of the injection protocol.

The external perspective view of a portable injection device and a storage medium is shown. The state where the safety cover of the portable injection device is opened is shown. 1 shows a schematic cross-sectional view of a portable injection device. The block diagram of schematic structure of the injection apparatus of 1st Embodiment is shown. A flow chart until the injection is stopped is shown. The block diagram of schematic structure of the injection apparatus in 2nd Embodiment is shown. The flowchart until it restarts injection | pouring is shown. The flowchart of control in 3rd Embodiment is shown. A table of information written to the memory card is shown. The flowchart of control in 4th Embodiment is shown. The flowchart of control in 5th Embodiment is shown. The external appearance perspective view of a shoulder bag is shown.

[First Embodiment]
FIG. 1 schematically shows a portable infusion device 1 (hereinafter simply referred to as an infusion device) of the present invention, an infusion pump 2 of a chemical solution that can be attached to the infusion device 1, and a storage medium 3 that can be inserted into the infusion device 1. It shows. FIG. 2 schematically shows a state in which the safety cover 13 of the injection device 1 is opened.

  A memory card 3 as a storage medium is detachably inserted into a slot 31 provided on the upper side of the main body 10 of the injection device 1. Note that a non-volatile memory is provided inside the memory card 3 and can store various data. Storage media include SD card (registered trademark), compact flash card (registered trademark), smart media (registered trademark), Memory Stick (registered trademark), multimedia card (registered trademark), IC card, magnetic disk, etc. included.

  The memory card 3 stores a medical solution injection protocol prepared in advance according to medical chart information of an electronic medical record or a doctor's instruction. Then, the memory card 3 is inserted into the slot 31 of the main body 10. The slot 31 is covered with a slide cover 33 on which a protrusion 32 is formed. When the memory card 3 is inserted, a finger is put on the protrusion 32 and the slide cover 33 is slid in the front direction of the main body 10. Thereafter, the memory card 3 is inserted into the exposed slot 31. The slide cover 33 has a liquid-proof function, and by closing the slide cover 33, entry of liquid from the outside can be prevented. Instead of the slide cover 33, a cover that opens and closes by rotating vertically or horizontally may be provided.

  A mounting portion 11 (FIG. 2) to which the infusion pump 2 is mounted is provided at the front portion of the main body 10. The infusion pump 2 attached is connected to a medical solution bag and a catheter (not shown) via a double check valve and a tube (not shown) before starting the injection of the chemical solution. In this embodiment, a syringe pump having a syringe 21 that can be filled with 5 ml to 10 ml of a chemical solution and a plunger 22 that can be moved forward and backward in the syringe 21 is mounted as the infusion pump 2. For example, such a syringe 21 is connected to a drug solution bag filled with an anticancer agent and a drug solution bag filled with physiological saline or glucose solution.

  The main body 10 is provided with an operation unit 12 having a confirmation switch 121, a start / stop button 123 (FIG. 2), a forward button 124, and a reverse button 125 (FIG. 2). The start / stop button 123, the forward button 124, and the reverse button 125 are provided at the front portion of the main body 10 and are covered with an openable safety cover 13. The safety cover 13 has a liquid-proof function, and by closing the safety cover 13, it is possible to prevent liquid from entering from the outside. On the other hand, the confirmation switch 121 is provided on the outer surface of the main body 10.

  An operator such as a doctor or a nurse who prepares the injection device 1 uses the forward button 124 and the backward button 125 to fill the chemical solution and release air. First, the operator attaches the infusion pump 2 to the attachment part 11 and pushes the advance button 124 to advance the plunger 22 of the syringe pump. Thereafter, a double check valve and a tube (not shown) are connected to the syringe 21, and the tube is connected to a chemical solution bag (not shown). In this state, the operator pushes the reverse button 125 to move the plunger 22 of the syringe pump backward. FIG. 2 shows a state where the plunger 22 has moved backward to the limit. When the plunger 22 moves backward, the drug solution is filled into the syringe 21 from the drug solution bag via the tube. After the chemical solution is filled, the operator pushes the advance button 124 to advance the plunger 22. Thereby, the inside of the tube connected to the catheter (not shown) is filled with the chemical solution, and the air in the tube is extracted. Thereafter, the operator pushes the reverse button 125 to move the plunger 22 backward. Finally, the operator presses the advance button 124 and advances the plunger 22 slightly. Thereby, a chemical | medical solution is filled in the tube and the syringe 21, and the injection preparation of a chemical | medical solution is ready. This series of operations can be automatically performed by the injection apparatus 1.

  On the outer surface of the main body 10 of the injection apparatus 1, a display unit 14 for confirming the injection protocol of the chemical solution is provided. When the memory card 3 is inserted into the slot 31, the display unit 14 automatically displays information such as the injection amount of the chemical solution, the injection rate of the chemical solution, and the injection time of the chemical solution. The operator checks the content of the displayed injection protocol before injecting the chemical solution. If the contents are correct, the confirmation switch 121 is pressed to determine the injection protocol. The display unit 14 displays various information such as the injection status, detection information detected by the external sensor 4 (FIG. 6), an indication that a bubble has been detected, the size of the bubble, and the indication of injection start or injection stop. it can.

  The operator opens the safety cover 13 after confirming the injection protocol. Then, when the operator presses the start / stop button 123, the injection of the chemical solution is started. The main body 10 of the injection device 1 is provided with a lamp 15, and the lamp 15 blinks while the chemical solution is being injected. When the injection of the chemical liquid is stopped or finished, the lamp 15 is turned off. Thereby, the operator can judge whether the chemical | medical solution is inject | poured or it is not inject | poured. An operator who confirms the start of injection of the chemical liquid closes the safety cover 13. Note that when the operator presses the start / stop button 123 again, the injection of the chemical solution is stopped.

  FIG. 3 is a schematic cross-sectional view of the injection apparatus 1. The injection device 1 of the present embodiment includes a screw portion 16 that slides within the main body 10 in order to advance and retract the plunger 22 of the syringe pump. Further, a motor 17 such as a stepping motor is provided as a drive unit inside the main body 10, and is connected to the infusion pump 2 via a screw part 16. A pulley portion 171 having a pulley and a belt is connected to the motor 17, and the motor 17 applies a rotational force to the screw portion 16 through the pulley and the belt. The screw portion 16 includes a screw nut that is screwed with a ball screw or a slide screw, and slides in the main body 10 by the rotational force from the motor 17. That is, the screw portion 16 slides as the screw shaft supported by the bearing rotates by the rotational force from the motor 17. The screw portion 16 is connected to the plunger 22 via the mounting portion 11, and when the screw portion 16 slides in the main body 10, the plunger 22 can be moved forward and backward. By providing such a motor 17 and the screw part 16, the injection device 1 of this embodiment can inject | pour a chemical | medical solution with high precision over a long time.

  The injection apparatus 1 using a ball screw will be described in detail. In this case, the screw portion 16 includes a ball screw shaft that is rotatably supported by the bearing, and a ball screw nut that is screwed into an intermediate portion of the ball screw shaft. Then, the ball screw nut engages with a plunger hook 11 (mounting portion 11) slidably attached to the main body 10. The rotation of the rotating shaft of the motor 17 is transmitted to the ball screw shaft through a pulley and a belt (pulley portion 171). Thereby, the ball screw shaft rotates according to the transmitted rotational force, and the ball screw nut slides with the rotation of the ball screw shaft. When the ball screw nut slides, the plunger 22 moves forward or backward via the plunger hook 11. That is, the plunger 22 is taken in and out of the syringe 21. When the plunger 22 moves backward, the chemical solution flows into the syringe 21 from the chemical solution bag. On the other hand, when the plunger 22 moves forward, the drug solution in the syringe 21 flows out into the tube and is injected into the user via the catheter. By repeating the forward and reverse movements, the chemical solution can be injected into the user continuously for a long time.

  In FIG. 3, the plunger 22 has a single-stage structure, but a two-stage structure can also be used. In this case, the first stage of the plunger 22 is provided so as to be able to come into contact with the end face in the forward direction inside the syringe 21. The second stage of the plunger 22 is provided so as to be separated from the first stage in the backward direction and to come into contact with the end face in the backward direction in the syringe 21. Thereby, dust can be prevented from entering the syringe 21.

  FIG. 4 is a block diagram schematically showing the configuration of the main part of the injection apparatus 1. The main body 10 of the injection device 1 is provided with a control unit 100, a storage unit 101, a reading unit 102, a power source 103, and a timer 104 in addition to the operation unit 12, the display unit 14, and the motor 17 described above. In addition, although the motor 17 of this embodiment is connected to a syringe pump (not shown), it can be connected to a peristaltic injection pump, an injection pump using a screw or a blade, or the like instead of the syringe pump.

  The control unit 100 includes a CPU and controls the motor 17, the display unit 14, the storage unit 101, and the reading unit 102. The storage unit 101 includes a ROM and a RAM, and stores a control program executed by the control unit 100 according to the injection protocol. The display unit 14 includes a liquid crystal display or an organic EL display. For example, the display unit 14 displays an injection amount or the like for confirmation of the injection protocol of the chemical solution. The display unit 14 can also display information such as the injection rate of the chemical solution, the total injection amount from the start of injection, and the remaining amount of the chemical solution during the injection of the chemical solution. The operation unit 12 includes a confirmation switch 121, a start / stop button 123, a forward button 124, and a reverse button 125. When the operator operates the operation unit 12, the operation unit 12 outputs a signal to the control unit 100. The control unit 100 controls the rotation direction and the rotation speed of the rotation shaft of the motor 17 in accordance with a signal from the operation unit 12. The motor 17 is driven according to a signal input from the control unit 100 via a driver (not shown). Thereby, the control part 100 can change the injection amount and injection | pouring speed | velocity | rate of a chemical | medical solution. The motor 17 has an encoder (not shown), and outputs information such as the number of rotations of the motor 17 to the control unit 100. The power source 103 supplies power to the motor 17 and outputs remaining amount information to the control unit 100.

  The timer 104 outputs time information such as the current time to the control unit 100. The reading unit 102 reads the injection protocol from the memory card 3 that is a storage medium inserted into the slot 31 of the main body 10. The control unit 100 controls the motor 17 so as to change the injection amount or the injection speed of the chemical solution according to the read injection protocol. At this time, information such as the rotational speed of the motor 17 and time information are used for controlling the motor 17. For example, from these pieces of information, the control unit 100 can calculate the total injection amount and the elapsed time from the start of injection. Then, the injection rate and the injection amount of the chemical solution are determined according to the injection protocol. Thereafter, the control unit 100 controls the motor 17 so as to change the injection rate and the injection amount of the chemical solution according to the determined injection rate and injection amount. If no change is necessary, the control unit 100 controls the motor 17 so as to maintain the current injection speed and injection amount. The change in the injection speed and the injection amount includes stop and start of injection.

  The memory card 3 that can be inserted into the infusion apparatus 1 stores a medicinal liquid infusion protocol. The injection protocol includes at least information on the injection time, the injection speed, and the injection amount. This infusion protocol can be automatically created by inputting the information of the user who is a patient into a computer in which a predetermined program is installed. The user information includes various information such as the user's disease name and physical characteristics (weight, height, body surface area, age or sex, etc.), user name, user ID, disease name, lesion site, or drug name. included. Such information can be automatically acquired by a computer from an electronic medical record recorded in a hospital system, and a doctor or the like can input the information to the computer. A doctor or the like can also create an injection protocol by himself / herself based on user information. The injection protocol created in this way is stored in advance in the memory card 3 using a computer. All or part of the user information can be stored in the memory card 3.

  For example, when calculating the injection protocol of the anticancer agent, the injection protocol is calculated based on data in which the injection amount of the anticancer agent corresponding to the body weight and height, or the body surface area is set. The injection amount is calculated as an injection amount of an anticancer agent proportional to the body surface area by calculating the body surface area from the input body weight and height. Furthermore, a variable pattern for changing the injection rate of the chemical solution with the passage of time is input to the computer. And a computer calculates the injection | pouring speed | rate of a chemical | medical solution based on the injection amount calculated | required by the variable pattern and calculation. As a result, the injection protocol is created so as to inject the calculated amount of the chemical solution at a predetermined time at an injection rate that changes with time corresponding to the variable pattern.

  The flow from the insertion of the memory card 3 to the start of the injection of the chemical solution will be described with reference to the flowchart of FIG. First, the operator inserts the memory card 3 storing the injection protocol into the main body 10 (S1). When the memory card 3 is inserted, the control unit 100 controls the reading unit 102, and the reading unit 102 reads the injection protocol from the memory card 3 (S2). Next, the control unit 100 displays the contents of the read injection protocol, for example, the injection time, the injection speed, and the injection amount on the display unit 14 (S3). The operator confirms the contents of the injection protocol displayed on the display unit 14. If the content of the injection protocol is correct (YES in S4), the operator presses the confirmation switch 121 of the operation unit 12. If the content of the injection protocol displayed on the display unit 14 is wrong (NO in S4), the operator takes out the memory card 3 from the slot 31 (S7). Then, the operator inserts the memory card 3 in which the correct injection protocol is stored. Alternatively, the operator stores the correct injection protocol in the removed memory card 3 and inserts it again into the slot 31. (S1).

  After displaying the content of the injection protocol, the control unit 100 determines whether or not the confirmation condition is satisfied (S5). Specifically, when the confirmation switch 121 is pressed or when a predetermined time has elapsed after displaying the injection protocol, the control unit 100 determines that the confirmation condition is satisfied. If the confirmation condition is satisfied (YES in S5), the control unit 100 stores the injection protocol in the storage unit 101 (S6). On the other hand, if the confirmation condition is not satisfied (NO in S5), the control unit 100 waits until the confirmation condition is satisfied.

  After storing the injection protocol in the storage unit 101, the control unit 100 determines whether or not the condition for starting the chemical injection is satisfied (S8). Specifically, when the start / stop button 123 is pressed or when the safety cover 13 is closed, the control unit 100 determines that the start condition is satisfied. If the start condition is not satisfied (NO in S8), the control unit 100 waits until the start condition is satisfied. On the other hand, if the start condition is satisfied (YES in S8), the control unit 100 drives the motor 17. As a result, the infusion pump 2 is activated, and the injection of the chemical liquid is started (S9). And the control part 100 controls the motor 17 according to an injection | pouring protocol, and changes injection | pouring speed | rate or injection | pouring amount.

  Thereafter, the control unit 100 monitors the injection state and determines whether or not the stop condition for the chemical solution injection is satisfied (S10). Specifically, when the injection of a predetermined injection amount of the chemical solution is completed, the start / stop button 123 is pressed, the safety cover 13 is opened, or the external sensor 4 described later detects bubbles of a predetermined size or larger. When it is detected, the control unit 100 determines that the stop condition is satisfied. If the stop condition is not satisfied (NO in S10), the control unit 100 continues the injection of the chemical solution until the stop condition is satisfied. On the other hand, if the stop condition is satisfied (YES in S10), the control unit 100 stops the motor 17 and the injection of the chemical liquid is stopped (S11).

  According to the injection device 1 of the present embodiment, a chemical injection protocol can be created in advance and stored in a storage medium. The injection can be started immediately by simply inserting the storage medium into the injection device. Therefore, it is not necessary to create and input an injection protocol in a short time immediately before injection. As a result, data can be input with sufficient time, and input errors can be prevented. Even if the injection device does not operate, injection can be started immediately by inserting a memory card into another injection device. Furthermore, according to the present embodiment, the injection protocol is stored in the storage unit of the injection device. Therefore, even if the memory card is accidentally removed during the injection, the injection does not stop.

[Second Embodiment]
FIG. 6 is a block diagram schematically showing a configuration of a main part of the injection apparatus 1 according to the second embodiment. An external sensor 4 can be connected to the injection device 1 of the present embodiment. The external sensor 4 is connected by wire through a port (not shown) formed in the main body 10. The injection device 1 according to the present embodiment has the same configuration as that of the first embodiment except for the external sensor 4. That is, the operation unit 12, the display unit 14, the motor 17, the control unit 100, the storage unit 101, the reading unit 102, the power source 103, and the timer 104 are also provided in the main body 10 of the injection device 1 of the present embodiment. Control is performed in the same manner as in the first embodiment. Therefore, description of the part which overlaps with 1st Embodiment is abbreviate | omitted. The motor 17 is connected to an infusion pump (not shown) such as a syringe pump, a peristaltic infusion pump, an infusion pump using a screw or a blade.

  The external sensor 4 includes an air sensor that detects the size of the bubbles in the tube or the presence or absence of bubbles, a biosensor that detects the user's body temperature, pulse rate, blood pressure, brain wave, blood glucose level, sweat rate, blood oxygen concentration, and the like. And an environmental sensor for detecting changes in the external environment such as temperature, humidity or illuminance. Then, the external sensor 4 outputs the detected detection information to the control unit 100 of the main body 10. Further, power is supplied to the external sensor 4 from the power source 103 of the main body 10. In addition to using the detection information for controlling the motor 17, the control unit 100 can display the detection information on the display unit 14. For example, the control unit 100 can cause the display unit 14 to display detection information such as the bubble size, the user's body temperature, brain waves, pulse rate, temperature, humidity, or illuminance.

  FIG. 7 is a flowchart showing a flow from when the external sensor 4 starts detection until the control unit 100 stops the injection and then restarts the injection. The external sensor 4 starts detection when power is supplied from the power supply 103 of the injection device 1 (S21). Specifically, when the external sensor 4 is connected to the main body 10 with the power supply 103 turned on, power is automatically supplied to the external sensor 4. In addition, when the power source 103 of the main body 10 is turned on while the external sensor 4 is connected, power is automatically supplied to the external sensor 4. Note that the external sensor 4 may start detection by pressing a start switch of the external sensor 4.

  The external sensor 4 that has started the detection outputs the detected detection information to the control unit 100 (S22). The control unit 100 determines whether or not to stop the injection based on the detection information (S23). For example, when the bubble size is input as the detection information, the control unit 100 determines whether the bubble size is larger than a predetermined value. If the bubble size is larger than the predetermined value, it is determined to stop the injection (YES in S23). When the user's body temperature is input as the detection information, the control unit 100 determines whether the body temperature is higher than a predetermined value. If the body temperature is higher than the predetermined value, it is determined that the injection is stopped (YES in S23).

  When stopping the injection, the control unit 100 stops the operation of the motor 17 (S24) and displays the occurrence of abnormality on the display unit 14 (S25). If necessary, the control unit 100 displays the content of the abnormality on the display unit 14. For example, when a bubble having a size larger than a predetermined value is detected, the control unit 100 stops the motor 17 and displays on the display unit 14 that the bubble has been detected. The display on the display unit 14 may not be simultaneous with the stop of the motor 17. For example, the control unit 100 may display the occurrence of abnormality on the display unit 14 after stopping the motor 17.

  The user or operator who confirmed the display performs appropriate processing according to the content of the displayed abnormality. For example, when it is displayed that air bubbles have been detected, the user or operator performs an air bleeding operation. If the abnormality is thereby eliminated, the user or the operator resumes the injection of the chemical solution. After displaying the occurrence of the abnormality, the control unit 100 determines whether or not a start condition for resumption is satisfied (S26). If the start condition is not satisfied (NO in S26), the control unit 100 continues to wait without restarting the injection of the chemical solution. For example, when the start / stop button 123 is pressed or when the safety cover 13 is closed, the control unit 100 determines that the start condition is satisfied.

  On the other hand, if the start condition is satisfied (YES in S26), the control unit 100 determines whether or not the abnormality has been resolved (S27). Specifically, the control unit 100 determines whether or not to stop the injection by the same method as in S23. If it is determined that the injection stop is maintained (YES in S27), that is, if it is determined that the injection device 1 is in a state of stopping the injection, the control unit 100 displays the occurrence of abnormality again on the display unit 14. For example, when a bubble having a size larger than a predetermined value is detected after satisfying the start condition, the control unit 100 does not start driving the motor 17. And the control part 100 displays on the display part 14 again that the bubble was detected. Thereafter, the control unit 100 continues to wait until the start condition is satisfied again.

  On the other hand, if it is determined that the injection stop is not maintained, that is, if it is determined that the injection apparatus 1 does not need to stop the injection (NO in S27), the control unit 100 calculates the length of time during which the injection has been stopped. To do. Specifically, the control unit 100 calculates the length of time during which the vehicle has stopped based on the difference between the time information at the time of stop input from the timer 104 and the current time information. Based on the calculated time, the chemical injection protocol is corrected (S28). For example, in the injection protocol in which 24 ml of anticancer agent is injected in 4 hours, a case where the injection is stopped for 1 hour after 18 ml of anticancer agent is injected will be described. In this case, the control unit 100 extends the injection time by 1 hour corresponding to the stop time. Then, the injection protocol is modified to inject 6 ml of the anticancer drug within the extended time. When the correction is completed, the control unit 100 starts driving the motor 17 and the injection of the chemical solution is resumed (S29). In addition, when correction | amendment of an injection | pouring protocol is unnecessary, the control part 100 can also restart injection | pouring of a chemical | medical solution, without correcting.

  Thus, the control part 100 of the injection device 1 of the present embodiment stops the injection when determining that an abnormality has occurred. That is, based on the detection information input from the external sensor 4, the motor 17 is controlled so as to change the injection amount of the chemical solution. Therefore, the injection device 1 of the present embodiment can maintain high safety even when a doctor or the like is not near the user. Furthermore, according to the injection device 1 of the present embodiment, even if the user accidentally presses the start / stop button 123 after the injection operation is stopped, the injection is not resumed until the abnormality is resolved.

  In FIG. 6, only one external sensor 4 is shown. However, two or more external sensors 4 may be connected to the injection device 1 of the present embodiment. For example, as the two external sensors 4, an air sensor and a biological sensor that detects body temperature can be connected to the main body 10. In this case, the control unit 100 determines the occurrence of an abnormality based on the detection information input from each external sensor 4. If it is determined that an abnormality has occurred based on one of the detection information, the control unit 100 stops the injection of the chemical solution.

  In the present embodiment, a case where injection is stopped due to occurrence of an abnormality is described. However, when the user himself / herself presses the start / stop button 123 to stop the injection, the same flow can be used. That is, when a stop signal is input from the operation unit 12 to the control unit 100, the control unit 100 stops driving the motor 17. At the same time, the control unit 100 displays the injection stop on the display unit 14. Thereafter, the control unit 100 determines whether or not a start condition for resuming injection is satisfied, for example, whether or not the start / stop button 123 is pressed. If the start condition is satisfied, the control unit 100 determines whether an abnormality has occurred based on the detection information. If no abnormality has occurred, the control unit 100 corrects the injection protocol. When the correction is completed, the control unit 100 drives the motor 17 again and restarts the injection of the chemical solution.

  In the present embodiment, the injection amount or injection speed of the chemical liquid can be changed instead of stopping the injection of the chemical liquid. For example, when the control unit 100 determines that an abnormality has occurred, the control unit 100 reduces the injection speed. That is, based on the detection information input from the external sensor 4, the motor 17 is controlled so as to reduce the injection rate of the chemical solution. Thereafter, if it is determined that the start condition is satisfied and the abnormality is eliminated, the control unit 100 returns the injection amount or the injection speed to the original.

[Third Embodiment]
In the injection device 1 of the third embodiment, the reading unit 102 can write information into the memory card 3. Thereby, the control unit 100 can control the reading unit 102 so as to write predetermined information into the memory card 3. The predetermined information includes detection information from the external sensor 4 or information on the injection result of the chemical solution. In addition, the injection device 1 of the present embodiment has the same configuration as that of the second embodiment shown in FIG. That is, the main body 10 of the injection device 1 is provided with an operation unit 12, a display unit 14, a motor 17, a control unit 100, a storage unit 101, a reading unit 102, a power source 103, and a timer 104, and an external sensor 4 is connected. Has been. Therefore, the description of the part which overlaps with 2nd Embodiment is abbreviate | omitted.

  FIG. 8 is a flowchart showing a flow from when the external sensor 4 starts detection until detection information is written to the memory card 3. When power is supplied from the power supply 103, the external sensor 4 starts detection (S31). Then, the external sensor 4 outputs the detected detection information to the control unit 100 (S32). The control unit 100 outputs the detection information and the information on the injection result of the chemical solution to the storage unit 101 in association with the time information input from the timer 104 (S33). When time information, detection information, and injection result information are input, the storage unit 101 temporarily stores these information (S34). Thereafter, the control unit 100 controls the reading unit 102 at a predetermined timing, and the reading unit 102 writes the information stored in the storage unit 101 to the memory card 3 (S35). Specifically, the control unit 100 reads the timing when the detection information is input from the external sensor 4, the timing when a predetermined time has elapsed from the start of injection, or the timing when the control unit 100 changes the injection amount and the injection speed. The unit 102 is controlled.

  9A and 9B show examples of information written to the memory card 3. FIG. 9A shows an example of an average body temperature for every hour as detection information and a time as time information, and shows an average body temperature for every hour from midnight to 24 hours. For example, the average body temperature from 0:00 to 1:00 is 36.3 ° C., and the average body temperature from 23:00 to 24:00 is 36.4 ° C. Thus, the detection information is written in the memory card 3 in association with the time information. In the present embodiment, the detection information is associated with the time information, but the reading unit 102 can write only the detection information.

  FIG. 9B shows the time as time information, the information on the injection amount of the anticancer drug per hour as information on the injection result, the average body temperature (° C.) per hour as detection information, and the detection information. The example of the detection or non-detection of the bubble of the size exceeding the predetermined value of is shown. FIG. 9B illustrates a case where 900 ml of an anticancer drug is injected for 12 hours from 22:00 to 10:00. For example, the injection volume from 0 o'clock to 1 o'clock is 75 ml, and bubbles having a size exceeding a predetermined value are not detected during this period. Further, the injection volume from 9 o'clock to 10 o'clock is 55 ml, and bubbles having a size exceeding a predetermined value are detected during this period. According to the injection protocol of this example, the planned injection volume from 9 o'clock to 10 o'clock is also 75 ml. However, the injection was stopped with the detection of air bubbles, and 20 ml of uninjected chemical solution was generated. Therefore, the injection time was extended and 20 ml of chemical solution was injected after 10:00. In this way, the detection information and the injection result information are written in the memory card 3 in association with the time information. Note that the reading unit 102 can also write only the injection result information or only the injection result information and time information.

  By writing detection information and time information, or information on injection results and time information in the memory card 3, a doctor can obtain detailed clinical data. The acquired data can be used to create a chemical injection protocol more appropriate for the user. Although time is used as time information in FIGS. 9A and 9B, an elapsed time from the start of injection may be used. As the detection information, various information such as a pulse rate, blood pressure, brain wave, blood sugar level, sweating amount, blood oxygen concentration, temperature, humidity, and illuminance can be used. In addition, as information on the injection result, various types of information such as an injection amount, an injection speed, and an injection time can be used.

[Fourth Embodiment]
The injection device 1 according to the fourth embodiment can perform predetermined control according to information input from the operation unit 12. Further, the reading unit 102 can write information into the memory card 3. FIG. 10 is a flowchart showing a flow from when the control unit 100 controls the motor 17 according to information input from the operation unit 12 to write predetermined information to the memory card 3. The injection device 1 of the present embodiment has the same configuration as that of the first embodiment shown in FIG. That is, the main body 10 of the injection device 1 is provided with an operation unit 12, a display unit 14, a motor 17, a control unit 100, a storage unit 101, a reading unit 102, a power source 103, and a timer 104. Therefore, description of the part which overlaps with 1st Embodiment is abbreviate | omitted.

  While using the injection device 1, the user takes various actions such as eating and sleeping. And depending on the kind of chemical | medical solution, it is preferable to change injection amount according to the change of states, such as before and after a meal and before and after sleep. For example, there are cases where it is preferable to stop the injection of the chemical solution during a meal and at a predetermined time after the meal, or it is preferable to increase the injection amount of the chemical solution during sleep. In addition, depending on the type of the chemical solution, it may be preferable to vary the injection amount of the chemical solution according to environmental changes such as nighttime and daytime. For example, it may be preferable to inject the chemical solution at night without injecting the chemical solution during the daytime. Therefore, in the injection device 1 of the present embodiment, the control unit 100 determines a change in the state of the user or a change in the environment according to the information input from the operation unit 12. And the control part 100 controls the motor 17 according to a judgment result, and changes the injection amount of a chemical | medical solution.

  First, a case where the state of the user is changed from “normal” to “meal” will be described. The user selects the type of state to be changed by pressing the confirmation switch 121 of the main body 10 of the injection device 1 before taking a predetermined action (S41). For example, when eating, the user presses the confirmation switch 121 of the main body 10 of the injection device 1 and selects “meal”. Every time the confirmation switch 121 is pressed, “normal”, “meal”, “sleep” or the like is displayed on the display unit 14. Then, the user presses the confirmation switch 121 a plurality of times until “meal” is displayed. If “meal” is displayed, the user stops pressing the confirmation switch 121 and eats in that state.

  When a predetermined time elapses after the confirmation switch 121 is pressed and a specific state type is selected, the operation unit 12 outputs a change signal corresponding to the state type to the control unit 100 (S42). The control unit 100, to which the change signal is input, reads the medicinal solution injection protocol corresponding to the changed state from the storage unit 101 (S43). Then, the control unit 100 controls the motor 17 according to the read chemical injection protocol (S44). That is, when “meal” is selected as the state type, the operation unit 12 outputs a change signal indicating that the user's state has been changed to “meal”. The control unit 100 to which the change signal has been input reads a chemical injection protocol corresponding to “meal”. And the control part 100 stops the motor 17, and injection | pouring of a chemical | medical solution is stopped.

  Thereafter, the control unit 100 associates the state type information, the injection result information, and the time information with each other and outputs them to the storage unit 101 (S45). The storage unit 101 to which these pieces of information are input stores the information (S46). Then, the control unit 100 controls the reading unit 102 at a predetermined timing, and the reading unit 102 writes the information stored in the storage unit 101 to the memory card 3 (S47). That is, when “meal” is selected as the state type, the state type information indicating “meal”, the time information indicating the time when the state type is changed, and the injection after the state type is changed Information on the injection result indicating the amount is stored in the storage unit 101. Then, the reading unit 102 writes these pieces of information in the memory card 3.

  The control unit 100 performs the same control when the user's state is changed from “meal” to “normal”. That is, the user presses the confirmation switch 121 again when the meal is finished, and selects the “normal” type of state. Then, the operation unit 12 outputs a change signal corresponding to the type of state to the control unit 100. Then, the control unit 100 to which the change signal is input reads the medicinal solution injection protocol corresponding to the changed state from the storage unit 101. For example, the control unit 100 reads an injection protocol corresponding to “normal”. Then, the control unit 100 controls the motor 17 according to the read injection protocol. For example, the control unit 100 starts driving the motor 17 and restarts the injection of the chemical solution after one hour has elapsed since the state type was changed to “normal”.

  Thus, the injection device 1 of this embodiment can switch the injection protocol of a chemical | medical solution according to the change of a user's state. Furthermore, the injection device 1 of the present embodiment can write information on the type of the user's condition, information on the injection result, and time information in the memory card 3. This allows the physician to obtain detailed clinical data, which is used to create an infusion protocol that is more appropriate for the user.

  Moreover, the injection apparatus 1 of this embodiment can also switch the injection protocol of a chemical | medical solution according to the change of an environment. Next, a case where the environment changes from day to night will be described. When a predetermined environment change occurs, the user presses the confirmation switch 121 of the main body 10 of the injection device 1 to select the type of environment after the change (S41). That is, when it is night, the user presses the confirmation switch 121 of the main body 10 of the injection device 1 to select “night”. Each time the confirmation switch 121 is pressed, “daytime” or “nighttime” is displayed on the display unit 14. Then, the user presses the confirmation switch 121 a plurality of times until a type corresponding to the current environment is displayed. If the appropriate type is displayed, the user stops pressing the confirmation switch 121.

  When the confirmation switch 121 is pressed and a predetermined time has elapsed with the specific environment type selected, the operation unit 12 outputs a change signal corresponding to the environment type to the control unit 100 (S42). The control unit 100, to which the change signal is input, reads the medicinal solution injection protocol corresponding to the changed state from the storage unit 101 (S43). Then, the control unit 100 controls the motor 17 according to the read injection protocol (S44). That is, when “night” is selected as the environment type, the operation unit 12 outputs a change signal indicating that the environment type has been changed to “night”. Then, the control unit 100 reads an injection protocol corresponding to “night”. Thereafter, according to the read injection protocol, the control unit 100 starts driving the motor 17 and injection of the chemical solution is started.

  Further, the control unit 100 associates and outputs the environment type information, the injection result information, and the time information to the storage unit 101 (S45). The storage unit 101 to which these pieces of information are input stores the information (S46). That is, environment type information indicating “night”, time information indicating the time when the environment type is changed, and injection result information indicating the injection amount after the environment type is changed are input to the storage unit 101. And remembered. Then, the control unit 100 controls the reading unit 102 at a predetermined timing, and the reading unit 102 writes the information stored in the storage unit 101 to the memory card 3 (S47).

  The control unit 100 performs the same control when the environment is changed from “night” to “daytime”. That is, the user presses the confirmation switch 121 again to select “daytime” as the environment type. Then, the operation unit 12 outputs a change signal corresponding to the type of environment to the control unit 100. Then, the control unit 100 to which the change signal is input reads the medicinal solution injection protocol corresponding to the changed state from the storage unit 101. Then, the control unit 100 controls the motor 17 according to the read injection protocol. That is, the control unit 100 reads an injection protocol corresponding to “daytime”. And the control part 100 stops the drive of the motor 17, and injection | pouring of a chemical | medical solution is stopped.

  Thus, the injection device 1 of the present embodiment can switch the injection protocol of the chemical solution according to the change of the environment where the user is placed. The injection device 1 can write environment type information, injection result information, and time information in the memory card 3. Thereby, the doctor can acquire detailed clinical data, and can use the data to create a more appropriate solution injection protocol for the user.

  In the present embodiment, the information on the injection result can be written in the memory card 3 as an injection protocol. For example, when the state of the state is changed to “meal” at 13:00 and the injection of the chemical is stopped, it can be written in the memory card 3 as an injection protocol for stopping the injection of the chemical at 13:00. In addition, when the type of environment is changed to “night” at 22:00 and the injection of the chemical solution is started, it can be written in the memory card 3 as an injection protocol for starting the injection of the chemical solution at 22:00. The injection protocol written in this way can be used as it is for the next chemical injection. Thereby, the injection | pouring protocol matched with a user's lifestyle or living environment can be created. Therefore, an appropriate injection protocol can be created and used according to the user. The doctor or the like can store or modify the injection protocol using the memory card 3 taken out from the injection device 1.

  In addition, the main body 10 of the injection device 1 of the present embodiment has a selection switch for selecting a state or environment, for example, “normal”, “meal”, “sleep”, “daytime”, and “nighttime”. A selection switch can also be provided. In this case, instead of pressing the confirmation switch 121, the user presses a selection switch corresponding to the type of state or environment.

[Fifth Embodiment]
The control unit 100 of the injection device 1 according to the fifth embodiment can perform predetermined control according to the detection information input from the external sensor 4. Further, the reading unit 102 can write information into the memory card 3. In addition, the injection device 1 of the present embodiment has the same configuration as that of the second embodiment shown in FIG. That is, the main body 10 of the injection device 1 is provided with an operation unit 12, a display unit 14, a motor 17, a control unit 100, a storage unit 101, a reading unit 102, a power source 103, and a timer 104, and an external sensor 4 is connected. Has been. Therefore, the description of the part which overlaps with 2nd Embodiment is abbreviate | omitted.

  In the injection device 1 of the present embodiment, the control unit 100 determines a change in the state of the user or a change in the environment according to the detection information input from the external sensor 4. And the control part 100 controls the motor 17 according to a judgment result, and changes the injection amount of a chemical | medical solution.

  First, the case where the user's state is changed from “awakening” to “sleeping” using a biological sensor that detects body temperature as the external sensor 4 will be described. The external sensor 4 outputs detection information to the control unit 100 at a predetermined timing (S51). The control unit 100 determines whether or not the detection information satisfies the condition type change condition (S52). If the change condition is not satisfied (NO in S52), the control unit 100 waits until detection information is input again.

  On the other hand, if the predetermined change condition is satisfied (YES in S52), the control unit 100 determines that the state type has been changed, and reads the changed chemical injection protocol from the storage unit 101 (S53). Then, the control unit 100 controls the motor 17 according to the read injection protocol (S54). That is, the external sensor 4 outputs the user's body temperature to the control unit 100. And the control part 100 judges whether a user's body temperature is lower than a predetermined value compared with the information previously memorize | stored in the memory | storage part 101. FIG. When the user's body temperature is lower than the predetermined value, the control unit 100 determines that the user has fallen asleep, and reads an injection protocol corresponding to “sleep”. And the control part 100 accelerates the motor 17 according to the read injection | pouring protocol, and increases the injection amount of a chemical | medical solution. In this case, the condition type change condition is whether or not the body temperature is lower than a predetermined value.

  Thereafter, the control unit 100 associates the information on the type of state after the change, the information on the injection result, and the time information with each other and outputs the information to the storage unit 101 (S55). The storage unit 101 to which such information is input stores the information (S56). That is, information on the state type indicating “sleep”, time information indicating the time when the state type is changed, and information on the injection result indicating the injection amount after the change are stored in the storage unit 101. Then, the control unit 100 controls the reading unit 102 at a predetermined timing, and the reading unit 102 writes the information stored in the storage unit 101 to the memory card 3 (S57).

  Similarly, the external sensor 4 continues to detect and outputs detection information to the control unit 100 at a predetermined timing. The control unit 100 determines whether or not the input detection information satisfies a change in the state type. If the predetermined change condition is satisfied, the control unit 100 determines that the state type has been changed again, and reads the changed chemical injection protocol from the storage unit 101. Then, the control unit 100 controls the motor 17 according to the read injection protocol.

  That is, the control unit 100 performs the same control when determining the change from “sleep” to “wakefulness”. That is, the external sensor 4 outputs the user's body temperature to the control unit 100. And the control part 100 judges whether a user's body temperature is higher than a predetermined value compared with the information previously memorize | stored in the memory | storage part 101. FIG. When the user's body temperature is higher than the predetermined value, the control unit 100 determines that the user has awakened, and reads the injection protocol of the chemical solution corresponding to “wakefulness”. And the control part 100 outputs a deceleration signal to the motor 17 according to the read injection protocol, and reduces the injection amount of a chemical | medical solution. In this case, the condition type change condition is whether or not the body temperature is higher than a predetermined value.

  Thus, the injection device 1 of the present embodiment can determine a change in the state of the user based on the detection information input from the external sensor 4 and can switch the injection protocol of the chemical solution. Therefore, it is possible to save the user from inputting the state change from the operation unit 12. Furthermore, the injection device 1 of the present embodiment can write information on the type of the user's condition, information on the injection result, and time information in the memory card 3. This allows the physician to obtain detailed clinical data, which is used to create an infusion protocol that is more appropriate for the user.

  Next, a case will be described in which an environment sensor that detects illuminance is used as the external sensor 4 and the environment type is changed from “daytime” to “nighttime”. The external sensor 4 outputs detection information to the control unit 100 at a predetermined timing (S51). The control unit 100 determines whether or not the detection information satisfies the change condition of the environment type (S52). If the change condition is not satisfied (NO in S52), the control unit 100 waits until detection information is input again. On the other hand, if the predetermined change condition is satisfied (YES in S52), the control unit 100 determines that the environment type has been changed, and reads the changed chemical injection protocol from the storage unit 101 (S53). Then, the control unit 100 controls the motor 17 according to the read injection protocol (S54).

  That is, when determining the change of environment from “daytime” to “nighttime”, the external sensor 4 outputs the illuminance of the environment where the injection device 1 is placed to the control unit 100. Then, the control unit 100 determines whether the illuminance is lower than a predetermined value as compared with information stored in the storage unit 101 in advance. When the illuminance is lower than the predetermined value, the control unit 100 determines that it is night, and reads a chemical injection protocol corresponding to “night”. And the control part 100 starts the drive of the motor 17 according to the read injection | pouring protocol, and starts injection | pouring of a chemical | medical solution. In this case, the change condition of the environment type is whether or not the illuminance is lower than a predetermined value.

  Thereafter, the control unit 100 associates and outputs the changed environment type information, injection result information, and time information to the storage unit 101 (S55). The storage unit 101 to which the information has been input stores such information (S56). Then, the control unit 100 controls the reading unit 102 at a predetermined timing, and the reading unit 102 writes the information stored in the storage unit 101 to the memory card 3 (S57). That is, information on the type of environment indicating “night”, time information indicating the time when the type of environment is changed, and information on the injection result indicating the injection amount after the change are stored in the storage unit 101. The reading unit 102 writes the information stored in the storage unit 101 to the memory card 3.

  Similarly, after that, the external sensor 4 continues detection and outputs detection information to the control unit 100. The control unit 100 determines whether or not the detection information satisfies an environment type change condition. When the predetermined change condition is satisfied, the control unit 100 determines that the environment type has been changed again, and reads the changed chemical injection protocol from the storage unit 101. Then, the control unit 100 controls the motor 17 according to the read injection protocol.

  That is, the control unit 100 performs the same control when determining the change from “night” to “daytime”. That is, the external sensor 4 outputs illuminance to the control unit 100 as detection information. Then, the control unit 100 determines whether or not the illuminance is higher than a predetermined value compared with information stored in the storage unit 101 in advance. When the illuminance is higher than the predetermined value, the control unit 100 determines that it is noon and reads the injection protocol corresponding to “daytime”. In this case, the change condition of the environment type is whether or not the illuminance is higher than a predetermined value. And the control part 100 stops the drive of the motor 17 according to the read injection | pouring protocol, and stops injection | pouring of a chemical | medical solution.

  As described above, the injection device 1 of the present embodiment can determine a change in the environment based on the detection information input from the external sensor 4 and can switch the injection protocol of the chemical solution. Therefore, it is possible to save the user from inputting the environmental change. Furthermore, the injection device 1 of the present embodiment can write information on the type of environment, information on the injection result, and time information on the memory card 3. Thereby, the doctor can obtain detailed clinical data, and the data is used to create a drug injection protocol more suitable for the user.

  In the present embodiment, the information on the injection result can be written in the memory card 3 as a chemical injection protocol. For example, when the state type is changed to “sleeping” at 22:00 and the injection of the chemical solution is started, it can be written in the memory card 3 as the injection protocol of the chemical solution that starts the injection of the chemical solution at 22:00. The chemical injection protocol written in this way can be used as it is for the next chemical injection. Thereby, the injection | pouring protocol of the chemical | medical solution matched with the user's lifestyle or living environment can be created. Therefore, an appropriate injection protocol can be created and used according to the user.

[Sixth Embodiment]
FIG. 12 shows a bag 5 that houses the portable injection device 1 of the present invention. This bag 5 is a shoulder bag used by being hung on the shoulder, and can accommodate the injection device 1 described in the first to fifth embodiments. Further, the bag 5 includes a belt portion 51 that is used when being hung on the shoulder, and a bag body 52 that accommodates the portable injection device 1. A hole 53 for extending the tube 23 to the outside of the bag 5 is formed on the side surface of the bag body 52. And through this hole 53, the tube 23 connected to the syringe 21 of the portable injection device 1 is connected to a catheter or a medical solution bag (not shown). In addition, the bag body 52 can accommodate the medical solution bag together with the portable injection device 1. In addition, the structure which accommodates the portable injection device 1 of this invention is not restricted to a shoulder bag, A jacket which has a waist pouch or an accommodating part can also be used.

[Deformation]
In each of the embodiments described above, the infusion device to which one infusion pump is attached has been described. However, the infusion device of the present invention is not limited to this, and it may be configured such that two or more infusion pumps can be attached. Specifically, the infusion device of the present invention can be configured to further include an additional mounting portion in addition to the mounting portion 11 and to mount the additional infusion pump on the additional mounting portion. In this case, the plunger of the additional infusion pump is advanced and retracted in the same manner as the plunger 22 of the infusion pump 2. That is, the plunger of the additional infusion pump is advanced and retracted by the motor 17 that is the drive unit via the screw part 16 and the pulley part 171. It is also possible to further provide an additional screw part, an additional pulley part, and an additional drive part. In this case, the plunger of the additional infusion pump can be advanced and retracted by the additional drive part via the additional screw part and the additional pulley part. In addition, a chemical solution bag filled with the additional chemical solution, an injection tube, a catheter, and the like are connected to the tip of the syringe of the additional injection pump. The chemical liquid injection from the injection pump 2 and the chemical liquid injection from the additional injection pump can be performed simultaneously or separately.

  Moreover, in this modification, the operation part 12 can further be provided with an injection button for additional chemical liquid. When the user presses the injection button for additional chemical liquid, the additional chemical liquid is injected from the additional injection pump. Also in the injection device of this modification, information on the injection result of the additional chemical solution can be written to the memory card 3 via the reading unit 102 as in the third embodiment.

  According to such an injection device of this modified embodiment, it is possible to inject an additional drug solution such as an analgesic when the user feels pain. As such an additional chemical solution, morphine is considered as an example. Morphine is continuously injected subcutaneously (intramuscular injection) while injecting the anticancer agent. For example, a total of 24 ml of morphine is injected into the user at an injection volume of 1 ml every hour for 24 hours.

  In addition, you may use the prefilled syringe with which the chemical | medical solution was filled beforehand for the additional infusion pump of this modification. Specifically, a prefilled syringe pre-filled with an additional chemical solution can be used, and for example, 1 ml or 0.5 ml of the additional chemical solution can be injected as one shot for one hour. In this case, when the user feels pain while injecting the anticancer drug, the user presses the injection button for the additional drug solution to inject the additional drug solution.

  Moreover, in each embodiment demonstrated above, although the injection apparatus 1 using two chemical | medical solution bags was demonstrated, this invention is not limited to this. It is also possible to use only one drug solution bag filled with a mixed drug solution of an anticancer drug and glucose solution or physiological saline. Moreover, it can replace with an anticancer agent, a glucose solution, or a physiological saline, and can inject | pour a high calorie liquid.

  Furthermore, when the injection amount is small, it is possible to prefill the syringe 21 with a predetermined amount of chemical solution. Then, the chemical liquid prefilled in the syringe 21 is injected into the user in accordance with the chemical liquid injection protocol stored in the memory card 3. In this case, there exists an advantage that the chemical | medical solution bag and the tube which connects the syringe 21 and a chemical | medical solution bag become unnecessary.

  Moreover, although the said embodiment demonstrated the injection apparatus 1 provided with the syringe pump, this invention is not limited to this. Instead of a syringe pump, a peristaltic infusion pump, an infusion pump using a screw or a blade can also be used.

  In addition, the portable injection device of the present invention may include an accessory device such as an alarm device, a GPS, or a wireless communication device. For example, in the case of an injection device equipped with a wireless communication device, data transmitted from an external scanner or IC tag reader can be received by the wireless communication device. An operator such as a doctor transmits data to the injection device using a scanner or an IC tag reader at the stage of preparation for injection. This scanner acquires data from a magnetic stripe, a two-dimensional code, a bar code, or the like recorded on the surface of a wristband or a chemical solution bag worn by a user, and transmits the data to a wireless communication device. In addition, the IC tag reader reads data from an IC tag of a wristband or a chemical solution bag and transmits it to the wireless communication device. The data transmitted to the wireless communication device includes information on the type of chemical solution or information on the user.

  Thereafter, the wireless communication apparatus outputs the received data to the control unit 100 of the main body 10. The control unit 100 compares the information of the input data with the information on the type of chemical stored in the memory card 3 or the information of the user. If the compared information does not match, the control unit 100 displays an error display on the display unit 14. As described above, the type of the chemical solution or the comparison and confirmation of the user is performed at the stage of the preparation for injection, so that the wrong injection of the chemical solution or the misunderstanding of the patient who is the user can be surely prevented.

  In addition, each above-mentioned embodiment and modification can be combined suitably in the range which does not change the content of this invention substantially.

1: portable infusion device 2: infusion pump 3: storage medium 10: body 11: mounting unit 17: drive unit 31: slot 100: control unit 102: reading unit

Similarly, the external sensor 4 continues to detect and outputs detection information to the control unit 100 at a predetermined timing. Control unit 100, the detection information entered to determine whether they meet the changes condition kinds of states. If the predetermined change condition is satisfied, the control unit 100 determines that the state type has been changed again, and reads the changed chemical injection protocol from the storage unit 101. Then, the control unit 100 controls the motor 17 according to the read injection protocol.

Claims (8)

A portable infusion device to which an infusion pump for injecting a chemical solution can be attached and a storage medium can be inserted,
A mounting portion for mounting the infusion pump;
A slot for inserting the storage medium;
A drive connected to the infusion pump;
A reading unit for reading the injection protocol of the chemical solution from the storage medium;
A control unit for controlling the driving unit and the reading unit,
The portable control device, wherein the control unit controls the driving unit so as to change an injection amount or an injection speed of the chemical solution according to the injection protocol. A screw part connected to the drive part;
The mounting portion can be mounted with a syringe pump having a syringe and a plunger,
The drive unit applies a rotational force to the screw part,
The portable injection device according to claim 1, wherein the screw portion slides by the rotational force and moves the plunger forward and backward. An external sensor can be connected to the portable injection device,
The said control part controls the said drive part so that the injection amount or injection | pouring speed | rate of the said chemical | medical solution may be changed based on the detection information input from the said external sensor. Portable injection device. The reading unit can write information to the storage medium,
The portable injection device according to claim 3, wherein the control unit controls the reading unit to write the detection information to the storage medium. The reading unit can write information to the storage medium,
5. The portable injection device according to claim 1, wherein the control unit controls the reading unit to write information on the injection result of the chemical solution into the storage medium. 6.   The portable infusion device according to any one of claims 1 to 5, further comprising an additional mounting portion for mounting the additional infusion pump. A mounting unit for mounting an infusion pump for injecting a chemical solution, a slot for inserting a storage medium, a drive unit connected to the infusion pump, a reading unit for reading an injection protocol of the chemical solution from the storage medium, and the drive unit And a control method for a portable injection device comprising a control unit for controlling the reading unit,
Read the injection protocol from the inserted storage medium,
A control method for a portable injection device, wherein the drive unit is controlled so as to change an injection amount or an injection speed of the chemical solution according to the injection protocol. The reading unit can write information to the storage medium,
8. The method for controlling a portable injection device according to claim 7, wherein the reading unit is controlled to write predetermined information in the storage medium.

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