Chemical liquid administration system, information processing device and control method thereof, and program

Abstract

To more appropriately cope with a case where connection between a cartridge and a device body is released during liquid feeding in a chemical liquid administration device.SOLUTION: A chemical liquid administration system includes: a chemical liquid administration device that administers chemical liquid filled in a reservoir to a living body; and an information processing device capable of communicating with the chemical liquid administration device. The chemical liquid administration device includes: a disposable cartridge including the reservoir; a reusable device body; and a first control part that establishes communication connection with the information processing device according to connection between the cartridge and the device body. The communication connection established between the chemical liquid administration device and the information processing device is released according to connection release between the cartridge and the device body. The information processing device includes a second control part that, when communication with the chemical liquid administration device is released during liquid feeding operation of the chemical liquid administration device, causes an output part to output prohibition information of notifying a user of prohibition of connection between the cartridge and the device body for a predetermined standby time.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a drug solution administration system, an information processing device and a control method therefor, and a program. [Background technology]

[0002] There is known a drug solution administration device that administers a drug solution such as insulin into a patient's body by attaching a cartridge (disposable part) filled with the drug solution to a device main body (reusable part) and applying pressure to the drug solution with a plunger. For example, Patent Document 1 describes the configuration of a drug solution administration device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-039846 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional drug solution administration devices have room for improvement in terms of how to deal with the situation when the cartridge and the device main body become disconnected during liquid delivery.

[0005] An object of the present disclosure is to enable a drug solution administration device to more appropriately respond when the cartridge and the device main body are separated during liquid delivery. [Means for solving the problem]

[0006] According to the present disclosure, a medical solution administration system includes: (1) A drug solution administration system including a drug solution administration device that administers a drug solution filled in a reservoir to a living body, and an information processing device that can communicate with the drug solution administration device, The drug solution administration device is a disposable cartridge comprising the reservoir; a reusable device body; a first control unit that establishes a communication connection with the information processing device in response to a connection between the cartridge and the device main body; Equipped with the communication connection established between the drug solution administration device and the information processing device is terminated in response to the disconnection of the cartridge from the device main body; The information processing device is provided with a second control unit that, if communication with the drug solution administration device is terminated during the drug solution administration device's liquid delivery operation, outputs prohibition information to an output unit to notify the user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time.

[0007] According to the present disclosure, an information processing device includes: (2) An information processing device capable of communicating with a drug solution administration device that administers a drug solution filled in a reservoir to a living body, the drug solution administration device comprises a disposable cartridge having the reservoir and a reusable device main body, and establishes a communication connection with the information processing device in response to connection between the cartridge and the device main body, and terminates the communication connection established between the drug solution administration device and the information processing device in response to disconnection between the cartridge and the device main body; The device is provided with a control unit that, if communication with the drug solution administration device is disconnected during the drug solution administration device's liquid delivery operation, outputs prohibition information to an output unit to notify the user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time.

[0008] (3) In the information processing device of (2), The control unit may output to the output unit as prohibition information information informing the user that connection between the cartridge and the device main body is prohibited for a longer waiting time when communication with the drug solution administration device is disconnected during a liquid delivery operation with a higher flow rate.

[0009] (4) In the information processing device of (2) or (3), The control unit If communication with the drug solution administration device is terminated during the drug solution delivery operation of the drug solution administration device, information including a countdown display of the time until the waiting time has elapsed may be output to the output unit as the prohibition information.

[0010] (5) In any one of the information processing devices (2) to (4), If communication with the drug solution administration device is disconnected during the drug solution administration device's liquid delivery operation, and communication with the drug solution administration device is established before the waiting time has elapsed, the control unit may output removal information to the output unit informing the user to remove the cartridge from the device main body.

[0011] (6) In any one of the information processing devices (2) to (5), After the control unit outputs the prohibition information to the output unit, if the waiting time has elapsed, the control unit may cause the output unit to output connection possible information notifying the user that the cartridge may be connected to the device main body.

[0012] According to the present disclosure, a control method for an information processing device includes: (7) A control method for an information processing device including a control unit capable of communicating with a drug solution administration device that administers a drug solution filled in a reservoir to a living body, comprising: the drug solution administration device comprises a disposable cartridge having the reservoir and a reusable device main body, and establishes a communication connection with the information processing device in response to connection between the cartridge and the device main body, and terminates the communication connection established between the drug solution administration device and the information processing device in response to disconnection between the cartridge and the device main body; The control unit includes causing the output unit to output prohibition information notifying the user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time when communication with the drug solution administration device is disconnected during the drug solution administration device's liquid delivery operation.

[0013] According to the present disclosure, the program comprises: (8) A program for controlling an information processing device having a control unit capable of communicating with a drug solution administration device that administers a drug solution filled in a reservoir to a living body, the drug solution administration device comprises a disposable cartridge having the reservoir and a reusable device main body, and establishes a communication connection with the information processing device in response to connection between the cartridge and the device main body, and terminates the communication connection established between the drug solution administration device and the information processing device in response to disconnection between the cartridge and the device main body; The control unit executes a procedure in which, if communication with the drug solution administration device is terminated during the drug solution administration device's liquid delivery operation, the control unit outputs prohibition information to the output unit informing the user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time. [Effects of the Invention]

[0014] According to an embodiment of the present disclosure, in a medicinal liquid administration device, it is possible to more appropriately deal with a case where the cartridge and the device main body are separated during liquid delivery. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram illustrating an example of a drug solution administration system according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing an example of the drug solution administration device of FIG. 1. [Figure 3] FIG. 2 is a perspective view showing an example of a drug solution administration device in a separated state. [Figure 4] FIG. 4 is a perspective view showing an example of the pump body of FIG. 3. [Figure 5] FIG. 2 is a perspective view showing an example of a pump body in an exploded state. [Figure 6] 10A and 10B are diagrams illustrating an example of a cartridge in a state where a nut portion is in a non-contact position. [Figure 7] FIG. 10 is a diagram showing an example of a cartridge with a nut portion in a predetermined position. [Figure 8] 2 is a block diagram showing an example of a configuration related to control of the chemical liquid administration device of FIG. 1. FIG. [Figure 9] 2 is a block diagram showing an example of a hardware configuration of the remote control of FIG. 1. [Figure 10] 2 is a flowchart showing an example of the operation of the drug solution administration device of FIG. 1. [Figure 11] 2 is a flowchart showing an example of the operation of the remote controller of FIG. 1; [Figure 12] 2 is a flowchart showing an example of the operation of the remote controller of FIG. 1; DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, parts having the same configuration or function are denoted by the same reference numerals. In the description of this embodiment, duplicated descriptions of the same parts may be omitted or simplified as appropriate.

[0017] (Configuration example of drug solution administration system 100) 1 is a diagram showing an example of a medicinal liquid administration system 100 according to one embodiment. The medicinal liquid administration system 100 administers a medicinal liquid such as insulin into a living body of a patient. The medicinal liquid administration system 100 includes a medicinal liquid administration device 1 and a remote control 90.

[0018] As will be described later with reference to FIG. 5 etc., the drug solution administration device 1 is a device that continuously or intermittently administers a drug solution filled in a reservoir (syringe) 18 into a living body by the pressing action of a plunger 20. The drug solution administration device 1 may be, for example, a portable device that can be attached to the abdomen or the like of a patient (patch type). However, the drug solution administration device 1 is not limited to the patch type, and may also be a tube type or the like.

[0019] The remote control 90 as an information processing device according to this embodiment is a device for a user, such as a patient, to operate the medicinal solution administration device 1. The remote control 90 notifies the user of information received from the medicinal solution administration device 1 and accepts user operations on the medicinal solution administration device 1. In this embodiment, the remote control 90 is implemented by a dedicated device compatible with the medicinal solution administration device 1, but it may also be implemented by a general-purpose computer such as a smartphone or tablet. Furthermore, in this embodiment, an example is described in which the remote control 90 serves as a user interface for notifying the user of information and accepting information input from the user. Alternatively, all or part of the user interface functions may be provided by the medicinal solution administration device 1. In this embodiment, the user of the medicinal solution administration system 100 is the patient himself / herself. However, the user may also be a person other than the patient, including the patient's family members and medical professionals such as doctors and nurses.

[0020] The medicinal liquid administration device 1 and the remote control 90 are communicably connected to each other via a wireless communication line, a wired communication line, or a combination thereof. An example in which the medicinal liquid administration device 1 and the remote control 90 are communicably connected to each other via Bluetooth (registered trademark) will be described below.

[0021] (Configuration example of drug solution administration device 1) Fig. 2 is an example of a perspective view of the medicinal liquid administration device 1 of Fig. 1. Fig. 3 is an example of a perspective view of the medicinal liquid administration device 1 of Fig. 1 when separated. The medicinal liquid administration device 1 has a pump body 10, a cradle device 11 to which the pump body 10 is detachably attached, and a cannula port 106 attached to the cradle device 11. The pump body 10 and the cradle device 11 have a structure in which they engage with each other and can be repeatedly detached. Fig. 4 is a perspective view showing an example of the pump body 10 of Fig. 3.

[0022] The pump body 10 includes a housing 111 that houses each component of the medicinal solution administration device 1, such as the reservoir 18 and the plunger 20. As illustrated in FIGS. 2 and 3, the housing 111 may be formed in a flat, approximately rectangular parallelepiped shape with rounded corners. The top surface 121 of the housing 111 is one surface of the pump body 10 that is located opposite the side that is attached to the cradle device 11. The top surface 121 may be formed in a substantially rectangular shape with rounded corners when viewed from above. A front surface 123 and a back surface 124 that face each other are connected substantially vertically to an end of the top surface 121 in a first direction. A first side surface 125 and a second side surface 126 that face each other are connected substantially vertically to an end of the top surface 121 in a second direction.

[0023] As shown in Figures 2 and 3, when the power source for the drug solution administration device 1 is a rechargeable battery 42 (see Figure 6), the pump body 10 has a connector unit 75 and an alarm unit 77 on its top surface 121. The connector unit 75 is a connector to which a charging device can be connected. The charging device is any device for charging the rechargeable battery 42. The charging device is, for example, a charging cable connected to an external power source, but may also be any connection terminal provided on the external power source. The following description will focus on an example in which a charging cable connected to an external power source is used as the charging device.

[0024] When a charging cable is connected to the connector 75, the pump body 10 receives power from a power source via the charging cable and charges a rechargeable battery 42 (see FIG. 6 ) provided in the device body 14. The connector 75 is, for example, a connector conforming to a general-purpose standard such as USB (Universal Serial Bus), but may be implemented using other methods that can receive power. In FIGS. 2 and 3 , the connector 75 is provided on the top surface 121, but it may be provided at any position on the pump body 10 (for example, on the side of the pump body 10, etc.). The connector 75 may be provided with a cap to prevent dust and the like from entering while the charging cable is not connected. In this embodiment, the connector 75 can be connected to a wired charging cable, but the medicinal solution administration device 1 may be configured to receive power via a wireless power supply method.

[0025] Notification unit 77 notifies the user of information. In this embodiment, notification unit 77 is, for example, an LED (Light Emitting Diode) lamp, but it may also be a speaker that outputs sound, a display (e.g., a liquid crystal display) that outputs images, a vibrator, or a combination of these. Notification unit 77 may include an LED lamp that displays a pattern that indicates an action that the user should be encouraged to take or an action that should be prohibited. In Figures 2 and 3, notification unit 77 is provided on top surface 121, but it may also be provided at any position on pump body 10 (e.g., on the side of pump body 10, etc.).

[0026] As shown in FIGS. 3 and 4 , the pump body 10 may have an engagement structure at the first side surface portion 125 and the second side surface portion 126 that allows the pump body 10 and the cradle device 11 to be repeatedly detachably attached to and detached from each other. The engagement structure may include, for example, a hook mechanism. Specifically, the first side surface portion 125 may have a first guide groove portion 135 and a first engagement hook portion 136 formed therein. The second side surface portion 126 may have a second guide groove portion 137 and a second engagement hook portion 138 formed therein. The first engagement hook portion 136 may be formed closer to the rear surface portion 124 than the first guide groove portion 135. The second engagement hook portion 138 may be formed closer to the rear surface portion 124 than the second guide groove portion 137. The first engagement hook portion 136 and the second engagement hook portion 138 may be detachably engaged with a pair of engagement receiving portions 162 of the cradle device 11, which will be described later.

[0027] Cradle device 11 is configured to be able to support pump body 10. As shown in Figures 2 and 3, cradle device 11 has a substantially flat mounting surface 141 and side walls 143, 144. Mounting surface 141 is formed in a substantially rectangular shape with curved corners when viewed from above. When pump body 10 is attached to cradle device 11, bottom surface 122 (see Figure 4) of housing 111 of pump body 10 is placed on mounting surface 141.

[0028] A detection rail 152, a sliding rail 153, and a mounting portion 155 may be provided on one surface of the mounting surface portion 141. The cannula port 106 may be mounted on the mounting portion 155. The mounting portion 155 may be provided with an insertion hole through which the cannula of the cannula port 106 is inserted.

[0029] The detection rail 152 is a protrusion that protrudes from one surface of the mounting surface 141. The detection rail 152 is used by the pump main body 10 to detect the attachment of the cradle device 11. The thickness of the detection rail 152 gradually increases from the mounting surface 141 toward the side wall 144. The detection rail 152 extends a predetermined length parallel to the side wall 143. When the pump main body 10 is attached to the cradle device 11, the detection rail 152 enters the detection groove 134 provided in the pump main body 10 and presses the attachment detection switch 133. The pump main body 10 detects the attachment of the cradle device 11 based on the pressing of the attachment detection switch 133. In other words, the attachment detection switch 133 functions as a determination unit that determines whether the pump main body 10 is attached to the cradle device 11.

[0030] The sliding rail 153 extends parallel to the side wall 143 on one surface of the mounting surface 141. When the pump body 10 is attached to the cradle device 11, the sliding groove 132 provided on the bottom surface 122 of the pump body 10 is slidably fitted into the sliding rail 153.

[0031] A side wall 144 extends substantially perpendicularly from the end of the mounting surface 141 in the first direction. Opposing side walls 143 extend substantially perpendicularly from the end of the mounting surface 141 in the second direction. When the pump body 10 is attached to the cradle device 11, the side wall 143 faces the first side surface 125 and the second side surface 126 of the housing 111 of the pump body 10. The side wall 144 faces the front surface 123 of the housing 111.

[0032] As shown in Fig. 3, cradle device 11 may have a fitting hole 154, which is an opening, in side wall portion 144. When pump body 10 is attached to cradle device 11, fitting protrusion 131 (see Fig. 4) provided on front surface portion 123 of pump body 10 may fit into fitting hole 154.

[0033] Guide rails 151, posture correction portions 156, and engagement receiving portions 162 may be formed on side wall portion 143. Engagement receiving portions 162 may be openings formed by cutting out side wall portion 143 in a substantially rectangular shape. Engagement receiving portions 162 may be provided on side wall portion 143 facing each other in accordance with the arrangement of first engagement hook portion 136 and second engagement hook portion 138. When pump body 10 is attached to cradle device 11, first engagement hook portion 136 and second engagement hook portion 138 may detachably engage with engagement receiving portions 162.

[0034] As shown in FIG. 3, guide rail 151 is a protrusion formed on side wall portion 143. Guide rail 151 does not necessarily have to have a continuous protrusion. For example, as shown in FIG. 3, notches 158 may be appropriately provided midway along guide rail 151. Guide rail 151 may also be provided on each of the opposing side wall portions 143. When pump body 10 is attached to cradle device 11, guide rail 151 engages with first guide groove portion 135 provided on first side surface portion 125 and second guide groove portion 137 provided on second side surface portion 126 of pump body 10. This guides the attachment direction of pump body 10.

[0035] 2 and 3, posture correcting portion 156 is a plate-shaped protrusion extending upward from side wall portion 143. Posture correcting portion 156 may have a curved shape corresponding to the shape of the connection portion (corner) between top surface portion 121 of housing 111 of pump body 10 and first side surface portion 125 and second side surface portion 126.

[0036] The cradle device 11 may be provided with an adhesive sheet to be attached to the patient's skin. The adhesive sheet may be attached to the other surface opposite to one surface of the mounting surface portion 141 of the cradle device 11. The adhesive sheet may have an opening formed therein through which a cannula of the cannula port 106 described below passes. The adhesive sheet may be made of a flexible material. The adhesive sheet may form an adhesive layer to be attached to the patient's skin on the surface opposite to the mounting surface portion 141. Before being attached to the patient's skin, the adhesive layer of the adhesive sheet may be covered with release paper.

[0037] The cannula port 106 may have a port body 181 capable of holding a cannula therein. The port body 181 may have a cylindrical connection portion. When a cannula is connected, the interior of the connection portion (cylindrical bore), the port body 181, and the cannula communicate with each other. A cap 182 is attached to the tip of the connection portion, and the other end of the connection portion is connected to the port body 181. The cap 182 seals the tip opening of the connection portion. This isolates the interior of the cannula port 106 from the external environment.

[0038] When the cannula port 106 is attached to the attachment portion 155 of the cradle device 11 using a puncture mechanism (not shown), the cannula penetrates the mounting surface 141 together with the puncture needle and protrudes to the other surface of the mounting surface 141 (the surface that is attached to the skin).The cannula is then inserted into the living body together with the puncture needle.The puncture needle is then removed, leaving the cannula in the living body.

[0039] The connecting portion of the port body 181 may face upstream in the mounting direction. The connecting needle tube 112 (see FIG. 4) exposed to the outside of the pump body 10 is fluidly connected to the outlet tube 29. The connecting needle tube 112 punctures the septum surface of the cap 182 and enters the bore. This connects the port body 181 to the outlet tube 29 (see FIG. 6, etc.) of the pump body 10, and fluidly connects the outlet tube 29 to the cannula. When the drive unit 40 (see FIG. 6, etc.) is driven, the medicinal liquid stored in the reservoir 18 of the pump body 10 is sent via the outlet tube 29 to the cannula port 106 and administered to the patient from the cannula. In other words, the outlet tube 29 is connected to the reservoir 18 and functions as a flow path for delivering the medicinal liquid to the outside of the reservoir 18. When the connecting needle tube 112 is connected to the outlet tube 29, the flow path of the medical solution administration device 1 may include the outlet tube 29 and the connecting needle tube 112.

[0040] 4 shows a perspective view of an example of pump body 10, viewed from a direction that allows bottom surface portion 122, front surface portion 123, and first side surface portion 125 to be seen. Bottom surface storage portion 127 is formed at the corners of bottom surface portion 122, first side surface portion 125, and front surface portion 123 of housing 111. Bottom surface storage portion 127 is a recessed space that extends from bottom surface portion 122 toward top surface portion 121 and has a predetermined length (thickness) and a predetermined area (width).

[0041] A cylindrical connection port 128 is formed in a wall surface 127a of the bottom storage portion 127 on the side of the back surface portion 124 in the first direction. The connection port 128 has a tubular hole 128a that protrudes from the wall surface 127a toward the front surface portion 123 in the first direction (i.e., in the installation direction). The connecting needle tube 112 is disposed in the tubular hole 128a of the connection port 128. The tubular hole 128a protrudes from the wall surface 127a so as to surround the periphery of the connecting needle tube 112, thereby protecting the connecting needle tube 112. Furthermore, the connecting needle tube 112 protrudes from the wall surface 127a within the tubular hole 128a toward the front surface portion 123 in the first direction (in the installation direction). In other words, the direction in which the connection port 128 protrudes from the wall surface 127a is parallel to the first direction.

[0042] When the pump body 10 is attached to the cradle device 11, the cannula port 106 attached to the cradle device 11 is housed in the bottom storage section 127. Furthermore, the port body 181 and cap 182 of the cannula port 106 are inserted into the cylindrical hole 128a of the connection port 128. Furthermore, the connecting needle tube 112 protrudes from the wall surface 127a inside the cylindrical hole 128a toward the front surface 123 in the first direction (i.e., in the attachment direction). In other words, the direction in which the connecting needle tube 112 protrudes from the wall surface 127a is parallel to the first direction.

[0043] (Configuration example of pump body 10) Fig. 5 is an example of an exploded perspective view of the pump body 10 of Fig. 3. Fig. 6 is a diagram showing an example of the cartridge 12 in a state where the nut portion 24 is in a non-contact position. Fig. 7 is a diagram showing an example of the cartridge 12 in a state where the nut portion 24 is in a predetermined position.

[0044] As shown in Figure 5, the pump body 10 includes a disposable cartridge 12 and a reusable device body 14. The cartridge 12 includes a base portion 16 in the shape of a flat box with one side open. The base portion 16 has a generally rectangular shape in a plan view. The base portion 16 may be detachably attached to a cradle device 11 that can be attached to the patient's skin.

[0045] 5, the base part 16 is provided with a reservoir 18 filled with a medicinal solution, a plunger 20 provided in the reservoir 18, a feed screw shaft 22 disposed coaxially with the plunger 20, and a nut part (movable part) 24 screwed onto the feed screw shaft 22. The base part 16 is configured as a disposable member.

[0046] Reservoir 18 extends cylindrically in the longitudinal direction of base portion 16. The outer and inner diameters of the distal end of reservoir 18 taper toward the distal end. The distal end of reservoir 18 is formed with an introduction port 26 for introducing the medicinal liquid into reservoir 18 and an outlet port 28 (see FIG. 6) for discharging the medicinal liquid from reservoir 18. An outlet tube 29 that guides the medicinal liquid from reservoir 18 to the cannula is connected to outlet port 28.

[0047] As shown in FIG. 6 , the plunger 20 is integrally molded from a resin material or the like and is provided within the reservoir 18 so as to be liquid-tight and slidable along the axial direction of the reservoir 18. The plunger 20 has a plunger body 30 constituting the tip side and a pusher 32 provided on the plunger body 30 and constituting the rear end side. A seal member (sealing member) 34 is attached to the cylindrical rear end side of the plunger body 30. The seal member 34 is attached to the outer surface of the plunger body 30. The seal member 34 presses against the inner wall surface of the reservoir 18 to prevent leakage of the medicinal liquid filled in the reservoir 18. The seal member 34 moves back and forth along the inner wall surface of the reservoir 18 in the left-right direction in FIGS. 6 and 7 while engaging with the cylindrical inner wall surface so as to prevent the medicinal liquid from leaking from the boundary between the plunger body 30 and the inner wall surface of the reservoir 18. The size of the internal space of reservoir 18 that contains the medicinal liquid varies depending on the position of plunger body 30 in reservoir 18. In this embodiment, seal member 34 is made of an O-ring, but is not limited to this as long as it can prevent the medicinal liquid in reservoir 18 from leaking from plunger body 30. Seal member 34 may be made of an elastic material, such as silicone rubber.

[0048] The pusher 32 has a pair of extensions 36 that extend rearward from the plunger body 30 to the outside of the reservoir 18, and a pair of claws 38 provided at the rear ends of the extensions 36. One end of the feed screw shaft 22 is journaled by a bearing 39, and constitutes a drive unit 40 that moves the nut unit 24 within the movable range.

[0049] The drive unit 40 further includes a rechargeable battery 42 as a power source, a motor 44 driven by the rechargeable battery 42, a gearbox (power transmission mechanism) 46 that reduces the rotational driving force of the motor 44 and transmits it, and a transmission shaft 52 to which a spur gear 50 that meshes with an output gear 48 of the gearbox 46 is fixed and which is engaged with the feed screw shaft 22 so as to be able to rotate integrally with the feed screw shaft 22.

[0050] In this embodiment, the transmission shaft 52 is provided in the cartridge 12, and the rechargeable battery 42, motor 44, and gear box 46 are provided in the device main body 14. By providing the rechargeable battery 42, motor 44, and gear box 46 in the device main body 14 in this way, the cost of the cartridge 12 can be reduced.

[0051] The rechargeable battery 42 is a secondary battery that can be repeatedly charged and discharged. The rechargeable battery 42 is provided with terminals 54 that are electrically connected to the motor 44 of the device body 14 when the device body 14 is connected to the cartridge 12. The transmission shaft 52 is supported by a pair of bearings 56 provided on the base portion 16, with the transmission shaft 52 being disposed coaxially with the feed screw shaft 22.

[0052] Instead of the rechargeable battery 42, a primary battery may be provided in the cartridge 12 as a power source. In this case, power is supplied to the device main body 14 once the cartridge 12 and device main body 14 are connected.

[0053] When the motor 44 rotates, its rotational force is transmitted to the feed screw shaft 22, and the rotation of the feed screw shaft 22 moves the nut portion 24 toward or away from the reservoir 18. Hereinafter, the rotation of the motor 44 that moves the nut portion 24 toward the reservoir 18 is referred to as forward rotation (forward rotation). Rotation in the direction opposite to the forward direction is referred to as reverse rotation (reverse rotation). The motor 44 is configured to be capable of rotating in both the forward and reverse directions. The motor 44 is configured so that if a force greater than a certain level is applied to the forward or reverse rotation, the rotational drive force is not transmitted to the gearbox 46 and subsequent components. For example, a stepping motor may be used as the motor 44. If a stepping motor is used, when a force greater than a certain level is applied to the forward or reverse rotation, the motor 44 loses synchronization with the input pulse and no longer transmits the rotational drive force (loses synchronism). Even if the motor 44 rotates in the reverse direction while the nut portion 24 is in contact with the bearing 56 due to step-out, it is possible to prevent damage caused by excessive force being applied to mechanisms such as the motor 44, gear box 46, and transmission shaft 52. A rotary encoder (not shown) is provided on the output shaft of the motor 44, and it is possible to determine whether the motor 44 has become out of synchronization with the input pulse (step-out) by detecting the rotation of the motor 44 with the rotary encoder. The operating state of the motor 44 is transmitted to the control unit 71 as a rotary encoder output.

[0054] The nut portion 24 is integrally molded from a resin material and has a nut portion main body 58 formed in a substantially rectangular parallelepiped shape, and a slide portion 60 provided on the nut portion main body 58. The nut portion main body 58 is formed with a threaded hole 62 into which the feed screw shaft 22 screws, and a pair of through holes 64 formed on either side of the threaded hole 62 and through which the claw portions 38 pass. A reinforcing cover 66 made of, for example, a metal material or the like is attached to the outer surface of the nut portion main body 58.

[0055] The slide portion 60 slides relative to a guide wall 68 that is provided on the base portion 16 and extends along the axial direction of the plunger 20. That is, before use, the nut portion 24 is in a non-contact position where it does not contact the plunger 20 (see FIG. 6), and is moved from the non-contact position to a contact position where the nut portion 24 and plunger 20 are engaged by the rotation of the feed screw shaft 22. After contacting the plunger 20, further rotation of the feed screw shaft 22 causes the nut portion 24 to press the plunger 20 toward the tip end (see FIG. 7). Note that the guide wall 68 may be provided with a restricting portion that functions as a stopper to prevent the slide portion 60 from moving further backward.

[0056] As shown in FIGS. 5 to 7, the device main body 14 includes a cover detachably attached to the base 16 so as to close the opening of the base 16, as well as a control unit 71, a storage unit 72, and a communication unit 73. The cover may be provided on the top surface 121 of the housing 111. The control unit 71 is electrically connected to the rechargeable battery 42, the motor 44, the storage unit 72, the communication unit 73, the charging circuit unit 74, the connector unit 75, the detection unit 76, and the notification unit 77 via a bus 79 (see FIG. 8). The control unit 71, which serves as a first control unit, controls each unit of the medicinal liquid administration device 1 to perform processing related to the operation of the medicinal liquid administration device 1. For example, the control unit 71 drives and controls the motor 44 based on information related to medicinal liquid administration transmitted from a remote control 90.

[0057] Fig. 8 is a block diagram showing an example of a configuration related to control of the drug solution administration device 1 of Fig. 1. As described above, the rechargeable battery 42, the motor 44, the storage unit 72, the communication unit 73, the charging circuit unit 74, the connector unit 75, the detection unit 76, and the notification unit 77 are electrically connected to the control unit 71 via the bus 79.

[0058] The control unit 71 is one or more processors. The control unit 71 is communicably connected to each component of the medicinal liquid administration device 1 and controls the operation of the entire medicinal liquid administration device 1. The processor is a general-purpose processor such as a CPU (Central Processing Unit), or a dedicated processor specialized for a specific process. The control unit 71 may include one or more dedicated circuits, or the one or more processors in the control unit 71 may be replaced with one or more dedicated circuits. The dedicated circuit is, for example, an FPGA (Field Programmable Gate Array).

[0059] The storage unit 72 is one or more semiconductor memories, one or more magnetic memories, one or more optical memories, or a combination of at least two of these. The semiconductor memory is, for example, a random access memory (RAM) or a read-only memory (ROM). The storage unit 72 functions as, for example, a main storage device, an auxiliary storage device, or a cache memory. For example, the storage unit 72 may store information from the control unit 71. Furthermore, the information stored in the storage unit 72 may be transmitted to the remote control 90 via the communication unit 73 under the control of the control unit 71.

[0060] The communication unit 73 is a communication interface for communicating with the remote control 90. In this embodiment, the communication unit 73 communicates with the remote control 90 via Bluetooth (registered trademark), but this is not limiting, and communication may be via other wireless communication paths such as a wireless LAN (Local Area Network) or a wired cable, for example.

[0061] The charging circuit unit 74 is an electric circuit for transferring power supplied from a power source connected to the connector unit 75 to the rechargeable battery 42. The charging circuit unit 74 includes a switch that can electrically connect and disconnect the connector unit 75 and the rechargeable battery 42.

[0062] The detection unit 76 detects whether or not the cartridge 12 is properly connected to the device main body 14. The detection unit 76 detects the connection between the cartridge 12 and the device main body 14 by a switch system, for example, similar to the mounting detection switch 133, but the system of the detection unit 76 is arbitrary.

[0063] The configurations of the rechargeable battery 42, the motor 44, the connector unit 75, and the notification unit 77 are as described above.

[0064] The control of the medicinal liquid administration device 1 may be performed by executing a program on a processor included in the control unit 71. That is, the control of the medicinal liquid administration device 1 may be realized by software. In this case, the program causes a computer to execute processing of steps included in the operation of the medicinal liquid administration device 1, thereby causing the computer to realize functions corresponding to the processing of those steps. Alternatively, some or all of the functions of the medicinal liquid administration device 1 may be realized by a dedicated circuit included in the control unit 71. That is, some or all of the functions of the medicinal liquid administration device 1 may be realized by hardware.

[0065] (Example of remote control 90 configuration) Fig. 9 is a block diagram showing an example of the hardware configuration of the remote control 90 of Fig. 1. The remote control 90 includes a control unit 91, a storage unit 92, a communication unit 93, an input unit 94, an output unit 95, and a bus 99.

[0066] The control unit 91 as the second control unit is one or more processors. The control unit 91 is communicably connected to each component of the remote control 90 via a bus 99, and controls the operation of the remote control 90 as a whole. The processor is a general-purpose processor such as a CPU or a GPU (Graphics Processing Unit), or a dedicated processor specialized for a specific process. The control unit 91 may include one or more dedicated circuits, or the one or more processors in the control unit 91 may be replaced with one or more dedicated circuits. The dedicated circuit is, for example, an FPGA.

[0067] The storage unit 92 is one or more semiconductor memories, one or more magnetic memories, one or more optical memories, or a combination of at least two of these. The semiconductor memories are, for example, RAM or ROM. The RAM is, for example, SRAM (Static RAM) or DRAM (Dynamic RAM). The ROM is, for example, EEPROM (Electrically Erasable Programmable ROM). The storage unit 92 functions, for example, as a main storage device, an auxiliary storage device, or a cache memory.

[0068] The communication unit 93 is a communication interface for communicating with the medicinal liquid administration device 1. The communication unit 93 communicates with the medicinal liquid administration device 1 to transmit information input by a user to the medicinal liquid administration device 1 and to receive information from the medicinal liquid administration device 1. The communication unit 93 communicates with the medicinal liquid administration device 1 by, for example, Bluetooth (registered trademark), but is not limited to this, and communication may also be performed by, for example, another wireless communication path such as a wireless LAN or a wired cable.

[0069] The input unit 94 includes one or more input interfaces that accept input operations by a user and acquire input information based on the user operations. The input unit 94 is, for example, a touch screen that is provided integrally with the display (display device) of the output unit 95, but is not limited thereto and may also be physical keys (for example, an external numeric keypad), capacitance keys, a pointing device, a microphone that accepts voice input, or the like.

[0070] The output unit 95 includes one or more output interfaces that output information to the user and notify the user. For example, the output unit 95 is a display that outputs information by image display, an LED, a speaker, a vibrator, or the like, but is not limited to these. The input unit 94 and the output unit 95 act as an input / output unit that is an interface between the user and the medicinal liquid administration device 1. In this embodiment, an example in which such an input / output unit is provided in the remote control 90 will be described, but it may also be provided in the medicinal liquid administration device 1 or another device.

[0071] The functions of the remote control 90 may be realized by executing a program according to this embodiment on a processor included in the control unit 91. That is, the functions of the remote control 90 may be realized by software. In this case, the program causes a computer to execute processing of steps included in the operation of the remote control 90, thereby causing the computer to realize functions corresponding to the processing of those steps. Alternatively, some or all of the functions of the remote control 90 may be realized by a dedicated circuit included in the control unit 91. That is, some or all of the functions of the remote control 90 may be realized by hardware.

[0072] (Example of operation of drug solution administration system 100) When operating the medicinal solution administration system 100 according to this embodiment, the user first removes the cartridge 12 from the packaging container. In this state, the reservoir 18 of the cartridge 12 is not filled with medicinal solution, and the nut portion 24 is in a non-contact position where it does not contact the plunger 20 (see FIG. 6).

[0073] Next, the user adjusts the position of plunger 20 relative to reservoir 18, and fills a desired amount of medicinal liquid into reservoir 18 through introduction port 26 from a medicinal liquid container, such as a vial in which the medicinal liquid is sealed. Thereafter, the user connects device main body 14 to cartridge 12. As a result, power from rechargeable battery 42 of cartridge 12 is supplied to the components of device main body 14, and output gear 48 of gear box 46 of device main body 14 meshes with spur gear 50 of cartridge 12. Control unit 71, memory unit 72, etc. are started up by receiving power from this rechargeable battery 42.

[0074] Next, the user fills the cartridge 12 removed from the packaging container with the medicinal liquid, connects the cartridge 12 to the device main body 14, and then primes the medicinal liquid administration device 1. Priming refers to an operation of engaging the nut portion 24 of the medicinal liquid administration device 1 with the plunger 20 and filling the flow path of the medicinal liquid administration device 1, including the outlet tube 29, with the medicinal liquid. Specifically, the user operates the remote control 90 to rotate the motor 44 in the forward direction. As a result, the rotational driving force of the motor 44 is transmitted to the feed screw shaft 22 via the gearbox 46, the spur gear 50, and the transmission shaft 52, causing the feed screw shaft 22 to rotate and the nut portion 24 to slide along the guide wall 68 and advance toward the plunger 20.

[0075] As the nut portion 24 advances toward the distal end of the reservoir 18, the pair of claws 38 abut against the wall surfaces defining the through-hole 64 of the nut portion 24, causing the pair of extensions 36 to bend toward each other. Then, as the claws 38 pass through the through-hole 64, the extensions 36 return from their bent state to their original state, and the nut portion 24 engages with the rear end of the plunger 20. This enables the nut portion 24 to press the plunger 20 toward the distal end. Thereafter, by further advancing the nut portion 24, the medicinal liquid in the reservoir 18 is pressed against the plunger 20, filling the inner bore of the outlet tube 29 with the medicinal liquid, thereby completing priming. This priming is completed when the user visually confirms that the medicinal liquid has been discharged from the connecting needle tube 112, which is fluidly connected to the outlet tube 29 and exposed to the outside of the medicinal liquid administration device 1. When the user visually confirms that the medicinal solution has been discharged from the connecting needle tube 112, the user instructs the medicinal solution administration device 1 to stop priming. For example, the remote control 90 may display an image of a priming stop button on the display of the output unit 95, and notify the medicinal solution administration device 1 to stop the motor 44 in response to the user selecting the priming stop button.

[0076] Next, the user attaches the cradle device 11 to a predetermined location on the skin (e.g., the patient's abdomen), uses the puncture mechanism to place the cannula of the cannula port 106 inside the body, and engages the cannula port 106 with the cradle device 11. Next, the user attaches the pump main body 10, to which the cartridge 12 and device main body 14 are connected, to the cradle device 11, thereby connecting the outlet tube 29 to the cannula. In this state, the control unit 71 controls the rotation of the motor 44, thereby continuously or intermittently administering the medicinal liquid from the reservoir 18 into the body. The control unit 71 controls the rotation of the motor 44 according to a medicinal liquid administration schedule instructed via the remote control 90, and administers the medicinal liquid at various rates, such as a basal rate or a bolus, depending on the patient's condition. The basal rate is the amount of medicinal liquid per unit time that corresponds to the basal secretion of insulin. The bolus is the amount of medicinal liquid that corresponds to the additional secretion of insulin in response to a meal or an increase in blood glucose level.

[0077] The reservoir 18 of the cartridge 12 is filled with an amount of medicinal liquid to be administered in an administration cycle of a certain number of days. After the medicinal liquid filled in the reservoir 18 is administered into the living body over, for example, three days to one week, the cartridge 12 is replaced and discarded. The cartridge 12 is replaced with a new one after each administration cycle. Each time the cartridge 12 is replaced, the reservoir 18 of the cartridge 12 is filled with medicinal liquid, the cartridge 12 is connected to the device main body 14, and a priming operation is performed. After these operations, while the medicinal liquid is being administered, the medicinal liquid administration device 1 can estimate the amount of medicinal liquid to be administered based on, for example, the number of rotations of the motor 44 performed during priming and liquid delivery. The medicinal liquid administration device 1 according to this embodiment includes a disposable cartridge 12 and a reusable device main body 14, thereby reducing running costs.

[0078] The amount of medicinal solution filled into reservoir 18 of cartridge 12 varies depending on the patient's age, condition, etc., even if the length of the administration cycle is the same. For example, if reservoir 18 is filled with a three-day amount of medicinal solution, cartridge 12 for adults will be filled with more medicinal solution than cartridge 12 for children.

[0079] During the liquid delivery operation of the liquid medicine administration device 1, a communication connection such as Bluetooth is established between the liquid medicine administration device 1 and the remote control 90. The liquid medicine administration device 1 notifies the remote control 90 in real time of its operating status, such as whether liquid is being delivered or operation has stopped. The remote control 90 controls the operation of the remote control 90 and the liquid medicine administration device 1 in accordance with the operating status received from the liquid medicine administration device 1.

[0080] If the flow path of the medicinal liquid in the medicinal liquid administration device 1 becomes blocked for some reason, a greater load than normal is placed on the rotation of the motor 44, causing the motor 44 to step out. The medicinal liquid administration device 1 can detect the blockage of the flow path when the motor 44 steps out. When the medicinal liquid administration device 1 detects the blockage of the flow path, it automatically stops driving the motor 44. Furthermore, the medicinal liquid administration device 1 communicates the blockage of the flow path to the remote control 90 via the communication unit 73, and causes the output unit 95 to output an image prompting the user to replace the cartridge 12 or the cradle device 11.

[0081] As described above, the medicinal liquid administration device 1 is used by connecting the disposable cartridge 12 to the reusable device main body 14. If the cartridge 12 becomes detached from the device main body 14 for some reason during the liquid delivery operation of the medicinal liquid administration device 1, the user is likely to attempt to reconnect the cartridge 12 to the device main body 14 and continue the operation. Furthermore, if a blockage of the flow path occurs during liquid delivery and the drive unit 40 stops operating, the user will temporarily detach the cartridge 12 from the device main body 14 and then reconnect the cartridge 12. When performing this operation, there is a possibility that the medicinal liquid will be unintentionally discharged from the outlet tube 29, the connecting needle tube 112, etc., and will adhere to the inside of the device main body 14 and the cartridge 12, corroding the metal components.

[0082] Therefore, if the cartridge 12 is detached from the device main body 14 during the operation after priming, the remote control 90 notifies the user not to connect the cartridge 12 to the device main body 14 for a certain period of time. Specifically, when the cartridge 12 is detached from the device main body 14, the medicinal liquid administration device 1 is automatically powered off, and the communication connection between the medicinal liquid administration device 1 and the remote control 90 is terminated. If the communication connection is terminated while the medicinal liquid administration device 1 is delivering liquid, the remote control 90 notifies the user via the output unit 95 not to connect the cartridge 12 for a predetermined period of time. For example, the remote control 90 urges the user not to connect the cartridge 12 by, for example, displaying a countdown of the time until connection is possible. In this way, when the cartridge 12 is detached from the device main body 14, the medicinal liquid administration system 100 urges the user not to connect the cartridge 12 to the device main body 14 until the spilled medicinal liquid has dried. Therefore, the medicinal liquid administration system 100 can prevent the medicinal liquid from remaining inside the device and corroding metal parts inside the device.

[0083] Fig. 10 is a flowchart showing an example of the operation of the medicinal liquid administration device 1 of Fig. 1. Figs. 11 and 12 are flowcharts showing an example of the operation of the remote control 90 of Fig. 1. The operation of the medicinal liquid administration system 100 described with reference to Figs. 10 to 12 may correspond to one of the control methods of the medicinal liquid administration device 1, the remote control 90, and the medicinal liquid administration system 100.

[0084] 10 shows a process in which the medicinal solution administration device 1 turns on the power and establishes a communication connection with the remote control 90 in response to the cartridge 12 being connected to the device main body 14, and turns off the power and terminates the communication connection with the remote control 90 in response to the cartridge 12 being removed. When Bluetooth is used for communication between the medicinal solution administration device 1 and the remote control 90, pairing for mutually registering communication partners is performed in advance. The operation of each step in FIG. 10 may be performed based on control by the control unit 71 of the medicinal solution administration device 1, or may be performed in response to the start or cut-off of power supply to the control unit 71, etc. The following process is performed when the cradle device 11 is attached to the abdomen, etc. of a patient.

[0085] 10, the control unit 71 of the medicinal liquid administration device 1 determines whether or not the cartridge 12 is connected to the device main body 14 using the detection unit 76. Specifically, the medicinal liquid administration device 1 may be started in response to the cartridge 12 being connected to the device main body 14. If the cartridge 12 is connected (YES in step S1), the control unit 71 proceeds to step S2, and if not (NO in step S1), the control unit 71 continues the processing of step S1.

[0086] In step S2, the control unit 71 turns on the power of the medicinal liquid administration device 1.

[0087] In step S3, control unit 71 establishes a communication connection with remote control 90. In a state in which communication with remote control 90 is established, control unit 71 transmits the liquid delivery state of medicinal liquid administration device 1 to remote control 90. The liquid delivery state will be described later.

[0088] In step S4, the control unit 71 determines whether or not the cartridge 12 has been removed from the device main body 14 using the detection unit 76. If the cartridge 12 has been removed (YES in step S4), the control unit 71 proceeds to step S5, and if not (NO in step S4), the control unit 71 continues the processing of step S4.

[0089] In step S5, the control unit 71 turns off the power of the medicinal liquid administration device 1.

[0090] In step S6, the control unit 71 disconnects the communication connection with the remote control 90. Specifically, the drug solution administration device 1 may end up disconnecting the communication connection with the remote control 90 by stopping transmission and reception of radio waves in the communication unit 73 in response to power-off.

[0091] 11 and 12 may be executed under the control of the control unit 91 of the remote control 90. The following processing is executed when a communication connection such as Bluetooth is established between the medicinal liquid administration device 1 and the remote control 90 and the medicinal liquid administration device 1 is performing a liquid delivery operation.

[0092] In step S11 of Fig. 11, the control unit 91 of the remote control 90 determines whether the communication connection with the medicinal liquid administration device 1 has been released. For example, the control unit 91 may determine that the communication connection with the medicinal liquid administration device 1 has been released when radio waves from the medicinal liquid administration device 1 are no longer received. When the connection between the cartridge 12 and the device main body 14 in the medicinal liquid administration device 1 is released, the medicinal liquid administration device 1 is powered off and the communication connection is released. If the communication connection with the medicinal liquid administration device 1 has been released (YES in step S11), the control unit 91 proceeds to step S13, and if not (NO in step S11), the control unit 91 proceeds to step S12.

[0093] In step S12, the control unit 91 acquires a liquid delivery status from the medicinal liquid administration device 1. The liquid delivery status is the operating status of the medicinal liquid administration device 1. The liquid delivery status may include, for example, high flow rate delivery, low flow rate delivery, and liquid delivery stop. High flow rate delivery is a state in which a large amount of medicinal liquid is delivered per unit time. High flow rate delivery may include, for example, bolus, priming, and blocked lock state. The liquid delivery status may include information that enables the high flow rate delivery to be distinguished as a bolus, priming, or blocked lock state. Low flow rate delivery is a state in which a small amount of medicinal liquid is delivered per unit time. Low flow rate delivery may be, for example, basal. Below, an example will be described in which the liquid delivery status acquired by the medicinal liquid administration device 1 is one of "high flow rate delivery," "low flow rate delivery," and "liquid delivery stop." After completing the processing of step S12, the control unit 91 returns to step S11.

[0094] In step S13, the control unit 91 determines whether the liquid delivery state acquired immediately before the communication connection was released is “liquid delivery stopped.” If the liquid delivery state is “liquid delivery stopped” (YES in step S13), the control unit 91 proceeds to step S14, and if not (NO in step S13), the control unit 91 proceeds to step S16.

[0095] In step S14, the control unit 91 notifies the user to connect the cartridge 12 to the device main body 14. Specifically, the control unit 91 may display an image prompting the user to connect the cartridge 12 on the display of the output unit 95, or may output a sound prompting the user to connect from a speaker. When the user connects the cartridge 12 to the device main body 14, the medicinal liquid administration device 1 is automatically powered on and establishes a communication connection with the medicinal liquid administration device 1.

[0096] In step S15, the control unit 91 determines whether or not a communication connection has been established with the medicinal solution administration device 1. If the communication connection has been established (YES in step S15), the control unit 91 returns to step S11, and if not (NO in step S15), the control unit 91 continues the processing of step S15.

[0097] In step S16, the control unit 91 determines whether the liquid transfer state acquired immediately before the communication connection was released is "high flow rate liquid transfer." If the liquid transfer state is "high flow rate liquid transfer" (YES in step S16), the control unit 91 proceeds to step S17. If the liquid transfer state is not "high flow rate liquid transfer," that is, if it is "low flow rate liquid transfer" (NO in step S16), the control unit 91 proceeds to step S18.

[0098] In step S17, the control unit 91 sets the waiting time to a "first time." The waiting time is the time that must be waited after the cartridge 12 is removed from the apparatus main body 14 and before it is reconnected.

[0099] In step S18, the control unit 91 sets the waiting time to the "second time." The "first time" is a value greater than the "second time." It is believed that the amount of liquid medicine that will flow out if the cartridge 12 is detached from the device main body 14 during high flow rate liquid delivery is greater than that during low flow rate liquid delivery. Therefore, the first time is set to a value greater than the second time, so as to provide a waiting time sufficient for the liquid medicine to dry.

[0100] After completing the process of step S17 or S18, the control unit 91 proceeds to step S21 in FIG.

[0101] In step S21 of FIG. 12 , the control unit 91 checks the inside of the medicinal liquid administration device 1 and notifies the user not to immediately attach the cartridge 12 to the device main body 14. Specifically, because the medicinal liquid may be attached inside the medicinal liquid administration device 1, the control unit 91 may cause the output unit 95 to output an image, sound, or the like urging the user to check the inside of the device. If the control unit 91 confirms the attachment of the medicinal liquid, it may notify the user that it is recommended to use a new cartridge 12. Even if the control unit 91 cannot confirm the attachment of the medicinal liquid and the same cartridge 12 will be used subsequently, it may notify the user not to attach the cartridge 12 for the waiting time determined in step S17 or S18 to ensure that the medicinal liquid is dried, including the device main body 14. The control unit 91 may output not only an image and sound but also vibrations by a vibrator to attract the user's attention.

[0102] In step S22, the control unit 91 displays a timer indicating the remaining time until the waiting time determined in step S17 or S18 has elapsed on the display of the output unit 95. Specifically, the control unit 91 may cause the display of the output unit 95 to display numbers, graphs, etc. indicating the remaining time.

[0103] In step S23, the control unit 91 starts the countdown of the timer displayed in step S22, thereby allowing the user to know the remaining time until the timer indicating the countdown times out.

[0104] In step S24, the control unit 91 determines whether the timer has timed out. If the timer has timed out (YES in step S24), the control unit 91 proceeds to step S30, and if not (NO in step S24), the control unit 91 proceeds to step S25.

[0105] In step S25, the control unit 91 determines whether or not a communication connection has been established with the medicinal liquid administration device 1. As described above, the communication connection with the medicinal liquid administration device 1 is established when the cartridge 12 is connected to the device main body 14. If the communication connection with the medicinal liquid administration device 1 has been established (YES in step S25), the control unit 91 proceeds to step S26, and if not (NO in step S25), the control unit 91 returns to step S24.

[0106] In step S26, the control unit 91 stops the countdown of the timer displayed on the display of the output unit 95.

[0107] In step S27, the control unit 91 notifies the output unit 95 to remove the cartridge 12 from the apparatus main body 14.

[0108] In step S28, the control unit 91 determines whether the communication connection with the medicinal liquid administration device 1 has been released. As described above, the communication connection with the medicinal liquid administration device 1 is released when the cartridge 12 is removed from the device main body 14. If the communication connection with the medicinal liquid administration device 1 has been released (YES in step S28), the control unit 91 proceeds to step S29; otherwise (NO in step S28), the control unit 91 returns to step S28 and waits until the communication connection is released.

[0109] In step S29, the control unit 91 restarts the countdown of the timer. The control unit 91 restarts the countdown of the timer stopped in step S26 from the middle, or may reset the timer and restart the countdown of the waiting time determined in step S17 or S18 from the beginning. After completing the processing of step S29, the control unit 91 returns to step S24.

[0110] In step S30, the control unit 91 notifies the output unit 95 to connect the cartridge 12 to the apparatus main body 14.

[0111] In step S31, the control unit 91 determines whether or not a communication connection has been established with the medicinal liquid administration device 1. If the communication connection with the medicinal liquid administration device 1 has been established (YES in step S31), the control unit 91 returns to step S11 in Fig. 11, and if not (NO in step S31), the control unit 91 returns to step S31 and waits until the communication connection is established.

[0112] As described above, the medicinal solution administration system 100 includes the medicinal solution administration device 1 that administers a medicinal solution filled in the reservoir 18 into the living body of a patient, and a remote control 90 capable of communicating with the medicinal solution administration device 1. The medicinal solution administration device 1 includes a disposable cartridge 12 that includes the reservoir 18, a reusable device body 14, and a control unit 71 that establishes a communication connection with the remote control 90 in response to connection between the cartridge 12 and the device body 14. In response to disconnection of the cartridge 12 from the device body 14, the communication connection established between the medicinal solution administration device 1 and the remote control 90 is terminated. If communication with the medicinal solution administration device 1 is terminated during a liquid delivery operation of the medicinal solution administration device 1, the remote control 90 causes the output unit 15 to output prohibition information that notifies the user that connection between the cartridge 12 and the device body 14 is prohibited for a predetermined waiting time.

[0113] Therefore, even if the cartridge 12 becomes detached from the device main body 14 during the liquid delivery operation and the liquid medicine leaks into the liquid medicine administration device 1, it is possible to prevent the user from immediately connecting the cartridge 12 to the device main body 14, causing the liquid medicine to remain and corroding metal parts (e.g., electronic components in the device main body 14) inside the liquid medicine administration device 1 and causing a breakdown in the liquid medicine administration device 1. Protein preparations such as insulin in particular contain additives for liquid medicine stability, and it is therefore undesirable for the liquid medicine to adhere to metal parts, so it is preferable to pay attention to the residue of scattered liquid medicine.

[0114] In the present embodiment, an example has been described in which prohibition information is output from the output unit 95 of the remote control 90 when the cartridge 12 becomes detached from the device main body 14 during the liquid delivery operation, but a notification of the connection prohibition may also be sent from the medicinal liquid administration device 1. For example, when the cartridge 12 becomes detached from the device main body 14 during the liquid delivery operation, the medicinal liquid administration device 1 may light up an LED lamp in the notification unit 77 that displays a pattern indicating that connection between the cartridge 12 and the device main body 14 is prohibited.

[0115] Furthermore, the remote control 90 may cause the output unit 15 to output, as prohibition information, information notifying the user that connection between the cartridge 12 and the device main body 14 will be prohibited for a longer waiting time if communication with the medical solution administration device 1 is disconnected during a high flow rate liquid delivery operation. Specifically, for example, the remote control 90 may set the first time, which is the waiting time when communication connection is disconnected while the medical solution administration device 1 is operating at a high flow rate liquid delivery, to a value greater than the second time, which is the waiting time for low flow rate liquid delivery. Therefore, when there is a possibility that a larger amount of medical solution will leak, connection of the cartridge 12 to the device main body 14 can be prohibited for a longer time, thereby effectively preventing corrosion of metal parts and the like within the medical solution administration device 1.

[0116] 11 and 12 illustrate an example in which the waiting time is set to either the first time or the second time, but three or more types of waiting times may be set. The waiting time may be any value determined according to the flow rate per unit time in the medicinal solution administration device 1 when the communication connection is released.

[0117] Furthermore, when communication with the medicinal liquid administration device 1 is disconnected during the liquid delivery operation of the medicinal liquid administration device 1, the remote control 90 may cause the output unit 15 to output, as prohibition information, information including a countdown display of the time remaining until the waiting time has elapsed. This allows the user to know the time remaining until the cartridge 12 is reconnected, and prevents the user from connecting the cartridge 12 before the waiting time has elapsed.

[0118] Furthermore, when communication with the medicinal liquid administration device 1 is disconnected during the liquid delivery operation, if communication with the medicinal liquid administration device 1 is re-established before the waiting time has elapsed, the remote controller 90 may cause the output unit 15 to output removal information notifying the user to remove the cartridge 12 from the device main body 14. Therefore, if the cartridge 12 is connected to the device main body 14 before the waiting time has elapsed, the removal of the cartridge 12 is prompted, and the inside of the medicinal liquid administration device 1 can be dried.

[0119] Furthermore, after outputting the prohibition information to the output unit 15, when the standby time has elapsed, the remote control 90 may cause the output unit 15 to output connection permission information notifying the user that the cartridge 12 may be connected to the device main body 14. Therefore, the user is aware of the situation in which it is permissible to connect the cartridge 12, and can attach the cartridge 12 to the device main body 14 and resume administration of the medicinal liquid.

[0120] The present disclosure is not limited to the above-described embodiments. For example, multiple blocks shown in the block diagrams may be integrated, or one block may be divided. Multiple steps shown in the flowcharts may be executed in parallel or in a different order depending on the processing capabilities of the device executing each step, or as needed, instead of being executed in chronological order as described. Other modifications are possible without departing from the spirit of the present disclosure.

[0121] Furthermore, for example, the configuration and operation of the medicinal liquid administration device 1 may be distributed among multiple computers that can communicate with each other. Furthermore, for example, some or all of the components of the medicinal liquid administration device 1 may be provided in another device such as a remote control 90. [Explanation of symbols]

[0122] 1. Chemical solution administration device 10 Pump body 11 Cradle device 12 cartridges 14 Device body 16 Base 18 Reservoir 20 Plunger 22 Feed screw shaft 24 Nut part 26 Introduction Port 28 Derivation port 29 Outlet pipe 30 Plunger body 32 Pusher 34 Sealing material 36 Extension 38 Claw 39 Bearings 40 Drive unit 42 Rechargeable battery 44 Motor 46 Gearbox 48 Output gear 50 Spur gear 52 Transmission shaft 54 terminals 56 Bearings 58 Nut body 60 Slide section 62 screw holes 64 through holes 66 Reinforcement cover 68 Guide Wall 71 Control Unit 72 Memory section 73 Communications Department 74 Charging circuit section 75 Connector part 76 Detector 77 Information Department 79 Bus 106 Cannew Report 111 Cabinet 112 Connecting needle tube 117 Opening 118 Inner wall 119 Protrusion 121 Top part 122 Bottom part 123 Front 124 Back section 125 First side part 126 Second side part 127 Bottom storage area 127a Wall 128 connection port 128a Cylindrical hole 131 mating projection 132 sliding groove 133 Wearing detection switch 134 Detection groove 135 First guide groove 136 First engagement hook portion 137 Second guide groove 138 second engagement hook portion 141 Placement surface section 143 Side wall 144 Side wall 151 Guide rail 152 Detection rail 153 Sliding Rail 154 Fitting hole 155 Mounting part 156 Posture Correction Department 158 Notch 162 Engagement receiving portion 181 Port body 182 Cap 90 Remote Control 91 Control Unit 92 Memory section 93 Communications Department 94 Input section 95 Output section 99 Bus 100 Chemical liquid administration system

Claims

1. A drug solution administration system comprising: a drug solution administration device that administers a drug solution filled in a reservoir to a living body; and an information processing device that can communicate with the drug solution administration device, The drug solution administration device is a disposable cartridge comprising the reservoir; a reusable device body; a first control unit that establishes a communication connection with the information processing device in response to a connection between the cartridge and the device main body; Equipped with the communication connection established between the drug solution administration device and the information processing device is terminated in response to the disconnection of the cartridge from the device main body; the information processing device includes a second control unit that, when communication with the drug solution administration device is released during a liquid delivery operation of the drug solution administration device, causes an output unit to output prohibition information notifying a user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time. Drug delivery system.

2. An information processing device capable of communicating with a drug solution administration device that administers a drug solution filled in a reservoir to a living body, the drug solution administration device comprises a disposable cartridge having the reservoir and a reusable device main body, and establishes a communication connection with the information processing device in response to connection between the cartridge and the device main body, and terminates the communication connection established between the drug solution administration device and the information processing device in response to disconnection between the cartridge and the device main body; a control unit that, when communication with the drug solution administration device is terminated during a drug solution delivery operation of the drug solution administration device, outputs prohibition information to an output unit to notify a user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time. Information processing device.

3. The information processing device described in claim 2, wherein the control unit outputs to the output unit as the prohibition information information notifying the user that connection between the cartridge and the device main body is prohibited for a longer waiting time when communication with the drug solution administration device is disconnected during a liquid delivery operation with a higher flow rate.

4. The control unit 3. The information processing device according to claim 2, wherein when communication with the drug solution administration device is terminated during the drug solution delivery operation of the drug solution administration device, information including a countdown display of the time until the waiting time has elapsed is output to the output unit as the prohibition information.

5. 3. The information processing device according to claim 2, wherein when communication with the drug solution administration device is disconnected during the drug solution administration device's liquid delivery operation, if communication with the drug solution administration device is established before the waiting time has elapsed, the control unit outputs removal information to the output unit informing the user that the cartridge should be removed from the device main body.

6. 3. The information processing device according to claim 2, wherein the control unit causes the output unit to output connection possible information notifying the user that the cartridge may be connected to the device main body when the waiting time has elapsed after outputting the prohibition information to the output unit.

7. A control method for an information processing device including a control unit capable of communicating with a drug solution administration device that administers a drug solution filled in a reservoir to a living body, comprising: the drug solution administration device comprises a disposable cartridge having the reservoir and a reusable device main body, and establishes a communication connection with the information processing device in response to connection between the cartridge and the device main body, and terminates the communication connection established between the drug solution administration device and the information processing device in response to disconnection between the cartridge and the device main body; the control unit causes an output unit to output prohibition information notifying a user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time when communication with the drug solution administration device is terminated during a liquid delivery operation of the drug solution administration device. A method for controlling an information processing device.

8. A program for controlling an information processing device including a control unit capable of communicating with a drug solution administration device that administers a drug solution filled in a reservoir to a living body, the drug solution administration device comprises a disposable cartridge having the reservoir and a reusable device main body, and establishes a communication connection with the information processing device in response to connection between the cartridge and the device main body, and terminates the communication connection established between the drug solution administration device and the information processing device in response to disconnection between the cartridge and the device main body; and causing the control unit to execute a procedure for outputting, to an output unit, prohibition information notifying a user that connection between the cartridge and the device main body is prohibited for a predetermined waiting time when communication with the drug solution administration device is terminated during a drug solution delivery operation of the drug solution administration device. program.

Images