Detection system, medical instrument, syringe pump, and transfusion pump

Abstract

To improve accuracy for detecting an impact to which a medical instrument is subjected to.SOLUTION: A detection system includes: a detection sensor mounted on a medical instrument for detecting a trigger of determination on whether or not an impact has occurred with a first shaft and a second shaft orthogonal to the first shaft as an impact trigger respectively; at least one measurement sensor mounted on the medical instrument for measuring an object that changes by the impact with either the first shaft or the second shaft; and a control device for monitoring the output from the detection sensor to determine whether or not the impact trigger of at least one shaft of the first shaft and the second shaft has occurred, referring to the output from the at least one measurement sensor if it is determined that the impact trigger of the at least one shaft has occurred, and determining whether or not the impact of the at least one shaft has occurred.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to detection systems, medical devices, syringe pumps, and infusion pumps. [Background technology]

[0002] Patent Document 1 discloses a medical device that detects impacts using a speaker with a vibration generating function. Patent Document 2 discloses a medical device that detects impacts using an acoustic transducer that can record airborne sound or solid-borne sound. Patent Document 3 discloses a medical device that detects impacts using an acceleration sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2015 / 046396 [Patent Document 2] Special Publication No. 2006-527608 [Patent Document 3] Special Publication No. 2010-510867 [Patent Document 4] International Publication No. 2002 / 066102 [Patent Document 5] JP 2004-073822 A [Patent Document 6] JP 2012-200545 A [Patent Document 7] JP 2012-223341 A Summary of the Invention [Problem to be solved by the invention]

[0004] Pumps such as syringe pumps and infusion pumps have an impact detection function that uses an acceleration sensor. For example, if the pump is subjected to an impact from being dropped from a height of one meter, the impact detection is recorded in the operation history, and the user is notified that the impact may have impaired the product's functions. However, the detection accuracy is insufficient because the output value of the acceleration sensor varies greatly depending on the direction or manner of impact. With some pump models, the probability of detecting an impact is only about 50%.

[0005] An object of the present disclosure is to improve the accuracy of detecting an impact received by a medical device. [Means for solving the problem]

[0006] Several aspects of the disclosure are set forth below.

[0007] [1] a detection sensor mounted on the medical device, the detection sensor detecting a trigger for determining whether or not an impact has occurred on a first axis and a second axis perpendicular to the first axis as an impact trigger; At least one measurement sensor mounted on the medical device and measuring an object that changes due to an impact on either the first axis or the second axis; a control device that monitors an output from the detection sensor to determine whether or not an impact trigger has occurred for at least one of the first axis and the second axis, and when it is determined that an impact trigger has occurred for the at least one axis, refers to an output from the at least one measurement sensor to determine whether or not an impact has occurred for the at least one axis; A detection system comprising:

[0008] [2] The detection system described in [1], wherein when the control device determines that an impact has occurred in at least one axis, the control device identifies the part of the medical device that was impacted by referring to the output from the at least one measurement sensor.

[0009] [3] The control device outputs proposal data proposing maintenance of a part of the medical device corresponding to the identified part.

[0010] [4] The at least one measurement sensor includes at least one first measurement sensor that measures an object that changes due to the impact on the first axis, and at least one second measurement sensor that measures an object that changes due to the impact on the second axis, The detection system described in [1], wherein when the control device determines that an impact trigger has occurred in the at least one axis, the control device determines whether an impact has occurred in the at least one axis by referring to the output from the at least one first measurement sensor and the output from the at least one second measurement sensor.

[0011] [5] The detection system described in [4], wherein when the control device determines that an impact has occurred in at least one axis, the control device identifies the part of the medical device that was impacted by referring to the output from the at least one first measurement sensor and the output from the at least one second measurement sensor.

[0012] [6] The detection sensor further detects an impact trigger on a third axis perpendicular to the first axis and perpendicular to the second axis; The control device determines whether an impact trigger has occurred on one or more of the first axis, the second axis, and the third axis as an impact trigger on the at least one axis, and determines whether an impact has occurred on one or more of the first axis, the second axis, and the third axis as an impact on the at least one axis. A detection system described in any of [1] to [5].

[0013] [7] The medical device is a syringe pump that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe, The detection system according to any one of [1] to [6], wherein the at least one measurement sensor includes a pressure sensor that measures the pressure pressing the syringe plunger as the target.

[0014] [8] The medical device is a syringe pump that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe, The detection system according to any one of [1] to [6], wherein the at least one measurement sensor includes a remaining amount sensor that measures the remaining amount of the drug in the syringe as the target.

[0015] [9] The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system described in any of [1] to [6], wherein the at least one measurement sensor includes an air bubble sensor that measures the transmittance of ultrasound in the infusion tube as the target.

[0016]

[10] The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system described in any of [1] to [6], wherein the at least one measurement sensor includes a drip sensor as the target for measuring the amount of the medication dripped into the infusion tube.

[0017]

[11] The detection system according to any one of [1] to [6], wherein the at least one measurement sensor includes a speaker that measures sound as the target.

[0018]

[12] The detection system according to any one of [1] to [6], wherein the at least one measurement sensor includes an illuminance sensor that measures illuminance as the target.

[0019]

[13] The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system according to any one of [1] to [6], wherein the at least one measurement sensor includes an occlusion sensor as the target for measuring the degree of occlusion of the infusion tube.

[0020]

[14] The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system described in any of [1] to [6], wherein the at least one measurement sensor includes a door sensor that measures the opening and closing degree of a door attached to a main body that houses the infusion tube as the target.

[0021]

[15] The detection system according to any one of [1] to

[14] , wherein the detection sensor is an acceleration sensor.

[0022]

[16] A medical device comprising a detection system described in any one of [1] to

[15] .

[0023]

[17] A syringe pump that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe, [4], comprising a detection system according to the present invention; The at least one first measurement sensor includes a pressure sensor that measures a pressure pressing the syringe plunger as an object that changes due to the impact of the first axis, a remaining amount sensor that measures a remaining amount of the drug in the syringe as an object that changes due to the impact of the first axis, or both the pressure sensor and the remaining amount sensor; The at least one second measurement sensor is a speaker that measures sound as an object that changes due to an impact on the second axis, an illuminance sensor that measures illuminance as an object that changes due to an impact on the second axis, or a syringe pump that includes both the speaker and the illuminance sensor.

[0024]

[18] An infusion pump that delivers a drug through an infusion tube by sequentially pressing the infusion tube, [4], comprising a detection system according to the present invention; the at least one first measurement sensor includes, as an object that changes due to the impact of the first axis, an air bubble sensor that measures the transmittance of an ultrasonic wave in the infusion tube, a drip sensor that measures the amount of the medicine dripped into the infusion tube, or both the air bubble sensor and the drip sensor, as an object that changes due to the impact of the first axis; The at least one second measurement sensor is an occlusion sensor that measures the degree of occlusion of the infusion tube as an object that changes due to an impact on the second axis, a door sensor that measures the degree of opening and closing of a door attached to a main body that houses the infusion tube as an object that changes due to an impact on the second axis, or an infusion pump that includes both the occlusion sensor and the door sensor. Effect of the Invention

[0025] According to the present disclosure, the accuracy of detecting an impact received by a medical device is improved. [Brief description of the drawings]

[0026] [Figure 1] FIG. 2 is a block diagram showing a configuration of a medical device according to an embodiment of the present disclosure. [Diagram 2] FIG. 1 is a block diagram showing a configuration of a syringe pump according to an embodiment of the present disclosure. [Diagram 3] FIG. 1 is a perspective view of a syringe pump according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is a block diagram showing a configuration of a control device according to an embodiment of the present disclosure. [Diagram 5] 5 is a flowchart illustrating an operation of a control device according to an embodiment of the present disclosure. [Figure 6] 1 is a table showing the correspondence between each surface direction of a syringe pump and important check points according to an embodiment of the present disclosure. [Figure 7]FIG. 13 is a block diagram showing a configuration of an infusion pump according to a modified example of an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings.

[0028] In each drawing, the same or corresponding parts are denoted by the same reference numerals. In the description of this embodiment, the description of the same or corresponding parts will be omitted or simplified as appropriate.

[0029] The configuration of a medical device 10 according to this embodiment will be described with reference to FIG.

[0030] The medical device 10 includes a detection system 20. As shown in Fig. 2 and Fig. 3, the medical device 10 is specifically a syringe pump 11 that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe.

[0031] The detection system 20 comprises a detection sensor 30, at least one first measurement sensor 40, at least one second measurement sensor 50, a control device 60 and a display 70.

[0032] The detection sensor 30 is mounted on the medical device 10 and detects triggers for determining whether or not an impact has occurred on a first axis and a second axis perpendicular to the first axis as impact triggers. That is, the detection sensor 30 detects an impact trigger on the first axis and an impact trigger on the second axis. As shown in FIG. 2, the detection sensor 30 is specifically an acceleration sensor 31. The acceleration sensor 31 may be a two-axis acceleration sensor, but is a three-axis acceleration sensor in this embodiment. That is, in this embodiment, the detection sensor 30 is a sensor that further detects an impact trigger on a third axis perpendicular to the first axis and perpendicular to the second axis.

[0033] In this embodiment, the X-axis corresponds to the first axis, the Y-axis corresponds to the second axis, and the Z-axis corresponds to the third axis. As shown in Fig. 3, the X-axis corresponds to the axis extending in the length direction of syringe pump 11, the Y-axis corresponds to the axis extending in the width direction of syringe pump 11, and the Z-axis corresponds to the axis extending in the height direction of syringe pump 11.

[0034] At least one first measurement sensor 40 is mounted on the medical device 10 and is a sensor that measures an object that changes due to the impact of the first axis. As shown in FIG. 2, at least one first measurement sensor 40 specifically includes a pressure sensor 41 and a remaining amount sensor 42. The pressure sensor 41 is a sensor that measures the pressure of pushing the syringe plunger as an object that changes due to the impact of the first axis. The pressure sensor 41 may be the same as that provided in a conventional syringe pump as disclosed in Patent Document 4. The remaining amount sensor 42 is a sensor that measures the remaining amount of the drug in the syringe as an object that changes due to the impact of the first axis. The remaining amount sensor 42 may be the same as that provided in a conventional syringe pump as disclosed in Patent Document 4. At least one first measurement sensor 40 may include only one of the pressure sensor 41 and the remaining amount sensor 42 instead of including both the pressure sensor 41 and the remaining amount sensor 42.

[0035] At least one second measurement sensor 50 is mounted on the medical device 10 and is a sensor that measures an object that changes due to the impact of the second axis. As shown in FIG. 2, the at least one second measurement sensor 50 specifically includes a speaker 51 and an illuminance sensor 52. The speaker 51 is a sensor that measures sound as an object that changes due to the impact of the second axis. The speaker 51 may be a sensor similar to that provided in a conventional syringe pump to output an alarm sound, a message, or both. The illuminance sensor 52 is a sensor that measures illuminance as an object that changes due to the impact of the second axis. The illuminance sensor 52 may be a sensor similar to that provided in a conventional syringe pump to measure the illuminance of the surroundings. The at least one second measurement sensor 50 may include only one of the speaker 51 and the illuminance sensor 52 instead of including both the speaker 51 and the illuminance sensor 52.

[0036] In this embodiment, the control device 60 is mounted on the medical device 10, but may be installed separately from the medical device 10 and be capable of communicating with the medical device 10 directly or via a network such as a LAN or the Internet. "LAN" is an abbreviation for local area network. The control device 60 is, for example, a microcomputer mounted on the medical device 10, but may also be a general-purpose computer such as a PC, a server computer such as a cloud server, a mobile device such as a smartphone or tablet, or a dedicated computer installed separately from the medical device 10. "PC" is an abbreviation for personal computer.

[0037] The display 70 is a device that displays various information related to the medical device 10. The display 70 is, for example, an LCD or an organic EL display. "LCD" is an abbreviation for liquid crystal display. "EL" is an abbreviation for electro luminescent.

[0038] The syringe pump 11 further includes various components such as a control board, a clutch / clutch board, a feed screw, an IC tag, a syringe clamp, an encoder, a photosensor, and a tact switch, as in the conventional syringe pump. "IC" is an abbreviation for integrated circuit. The control device 60 may be mounted on the control board.

[0039] The outline of this embodiment will be described.

[0040] The control device 60 monitors the output from the detection sensor 30 and determines whether or not an impact trigger has occurred on at least one axis among the first axis and the second axis. In this embodiment, the control device 60 determines whether or not an impact trigger has occurred on at least one axis among the first axis, the second axis, and the third axis as the impact trigger on at least one axis. When the control device 60 determines that an impact trigger on at least one axis has occurred, the control device 60 refers to the output from at least one first measurement sensor 40 and the output from at least one second measurement sensor 50 to determine whether or not an impact on at least one axis has occurred. When the control device 60 determines that an impact on at least one axis has occurred, the control device 60 refers to the output from at least one first measurement sensor 40 and the output from at least one second measurement sensor 50 to identify a part of the medical device 10 that has received the impact. The control device 60 outputs proposal data that proposes maintenance of a part of the medical device 10 that corresponds to the identified part. The control device 60 may adjust the brightness of the display 70 by referring to the output from the illuminance sensor 52.

[0041] Although it is difficult to obtain sufficient shock detection accuracy only with the shock detection function using the detection sensor 30, in this embodiment, it is easier to obtain sufficient shock detection accuracy by complementing the shock detection function using a combination of at least one first measurement sensor 40 and at least one second measurement sensor 50. That is, according to this embodiment, the accuracy of detecting a shock received by the medical device 10 is improved. Such improvement in shock detection accuracy improves safety.

[0042] As the first measurement sensor 40, existing sensors such as a pressure sensor 41 and a remaining amount sensor 42 that are also provided in conventional syringe pumps can be used to avoid cost increases. As the second measurement sensor 50, existing sensors such as a speaker 51 and an illuminance sensor 52 that are also provided in conventional syringe pumps can be used to avoid cost increases.

[0043] Moreover, according to this embodiment, since it is possible to identify the direction from which the medical device 10 received an impact, it is possible to identify the malfunctioning part, and maintenance efficiency is improved. If an impact is detected and it is not possible to estimate where in the medical device 10 the abnormality has occurred, it is necessary to thoroughly inspect the housing and board of the medical device 10. However, in this embodiment, it is possible to analyze the cause of the failure without such effort. Such an analysis of the cause of the failure improves maintainability.

[0044] In this embodiment, since the direction of impact on the medical device 10 can be linked to the failure site, when feedback is given to the manufacturer of the medical device 10, it is easy to link it to product improvements. For example, it is easy to see where improvements should be made to the product, such as increasing strength or changing the structure to make it less likely to break even if dropped. Linking failure cause analysis to product improvements increases the value of the product.

[0045] As a modification of this embodiment, the detection system 20 may include only at least one first measurement sensor 40 or only at least one second measurement sensor 50 among at least one first measurement sensor 40 and at least one second measurement sensor 50. In this modification, when the control device 60 determines that an impact trigger of at least one axis has occurred, the control device 60 determines whether or not an impact of at least one axis has occurred by referring to the output from at least one measurement sensor that measures an object that changes due to an impact of either the first axis or the second axis. When the control device 60 determines that an impact of at least one axis has occurred, the control device 60 identifies the part of the medical device 10 that has received the impact by referring to the output from at least one measurement sensor that measures an object that changes due to an impact of either the first axis or the second axis.

[0046] The configuration of the control device 60 according to this embodiment will be described with reference to FIG.

[0047] The control device 60 includes a control unit 61, a storage unit 62, and a communication unit 63.

[0048] The control unit 61 includes at least one processor, at least one programmable circuit, at least one dedicated circuit, or any combination thereof. The processor is a general-purpose processor such as a CPU or GPU, or a dedicated processor specialized for a specific process. "CPU" is an abbreviation for central processing unit. "GPU" is an abbreviation for graphics processing unit. The programmable circuit is, for example, an FPGA. "FPGA" is an abbreviation for field-programmable gate array. The dedicated circuit is, for example, an ASIC. "ASIC" is an abbreviation for application specific integrated circuit. The control unit 61 executes processes related to the operation of the control unit 60 while controlling each part of the control unit 60.

[0049] The storage unit 62 includes at least one semiconductor memory, at least one magnetic memory, at least one optical memory, or any combination thereof. The semiconductor memory is, for example, a RAM, a ROM, or a flash memory. "RAM" is an abbreviation for random access memory. "ROM" is an abbreviation for read only memory. The RAM is, for example, an SRAM or a DRAM. "SRAM" is an abbreviation for static random access memory. "DRAM" is an abbreviation for dynamic random access memory. The ROM is, for example, an EEPROM. "EEPROM" is an abbreviation for electrically erasable programmable read only memory. The flash memory is, for example, an SSD. "SSD" is an abbreviation for solid-state drive. The magnetic memory is, for example, an HDD. "HDD" is an abbreviation for hard disk drive. The storage unit 62 functions, for example, as a main storage device, an auxiliary storage device, or a cache memory. The storage unit 62 stores data used in the operation of the control device 60 and data obtained by the operation of the control device 60.

[0050] The communication unit 63 includes at least one communication module. The communication module is, for example, a module compatible with a wireless LAN communication standard such as IEEE802.11, a mobile communication standard such as LTE, 4G standard, or 5G standard, or a wired LAN communication standard such as Ethernet (registered trademark). "IEEE" is an abbreviation for Institute of Electrical and Electronics Engineers. "LTE" is an abbreviation for Long Term Evolution. "4G" is an abbreviation for 4th generation. "5G" is an abbreviation for 5th generation. The communication unit 63 receives data used in the operation of the control device 60 and transmits data obtained by the operation of the control device 60.

[0051] The functions of the control device 60 are realized by executing a program according to this embodiment on a processor serving as the control unit 61. That is, the functions of the control device 60 are realized by software. The program causes a computer to execute the operations of the control device 60, thereby causing the computer to function as the control device 60. That is, the computer functions as the control device 60 by executing the operations of the control device 60 in accordance with the program.

[0052] The program may be stored in a non-transitory computer-readable medium. Examples of the non-transitory computer-readable medium include a flash memory, a magnetic recording device, an optical disk, a magneto-optical recording medium, or a ROM. The program may be distributed, for example, by selling, transferring, or lending a portable medium such as an SD card, DVD, or CD-ROM on which the program is stored. "SD" is an abbreviation for Secure Digital. "DVD" is an abbreviation for digital versatile disc. "CD-ROM" is an abbreviation for compact disc read only memory. The program may be distributed by storing the program in the storage of a server and transferring the program from the server to another computer. The program may be provided as a program product.

[0053] A computer temporarily stores in a main storage device, for example, a program stored in a portable medium or a program transferred from a server. Then, the computer reads the program stored in the main storage device with a processor, and executes processing according to the read program with the processor. The computer may read the program directly from a portable medium and execute processing according to the program. The computer may execute processing according to the received program each time a program is transferred from the server to the computer. Processing may be executed by a so-called ASP-type service that realizes functions only by execution instructions and result acquisition without transferring a program from the server to the computer. "ASP" is an abbreviation for application service provider. Programs include information used for processing by a computer and equivalent to a program. For example, data that is not a direct command to a computer but has the property of defining computer processing falls under " equivalent to a program.

[0054] A part or all of the functions of the control device 60 may be realized by a programmable circuit or a dedicated circuit as the control unit 61. In other words, a part or all of the functions of the control device 60 may be realized by hardware.

[0055] The operation of the control device 60 according to this embodiment will be described with reference to Fig. 5. The operation described below corresponds to the shock detection method according to this embodiment. That is, the shock detection method according to this embodiment includes steps S1 to S6 shown in Fig. 5.

[0056] In S1, the control unit 61 monitors the output from the detection sensor 30. Specifically, the control unit 61 periodically acquires the AD values ​​of the X-axis, Y-axis, and Z-axis output from the acceleration sensor 31. "AD" is an abbreviation for analog to digital.

[0057] In S2, the control unit 61 determines whether or not an impact trigger has occurred for one or more of the first, second, and third axes. Specifically, the control unit 61 determines that an impact trigger has occurred when the AD values ​​for one or more of the X-axis, Y-axis, and Z-axis obtained in S1 exceed a threshold. The control unit 61 determines that an impact trigger has not occurred when none of the AD values ​​for the X-axis, Y-axis, and Z-axis obtained in S1 exceed a threshold.

[0058] If it is determined in S2 that an impact trigger has occurred, step S3 is executed. That is, step S3 is executed in response to the occurrence of an impact trigger. If it is determined in S2 that an impact trigger has not occurred, step S1 is executed again.

[0059] In S3, the control unit 61 refers to the output from at least one first measurement sensor 40 and the output from at least one second measurement sensor 50. Specifically, the control unit 61 acquires the AD values ​​output from the pressure sensor 41, the remaining amount sensor 42, the speaker 51, and the illuminance sensor 52 before and after the occurrence of the impact trigger.

[0060] In S4, the control unit 61 determines whether or not an impact has occurred on one or more of the first, second, and third axes. That is, the control unit 61 determines whether or not an impact has been detected. Specifically, the control unit 61 determines whether or not an impact has been detected by comparing the AD values ​​from the various sensors acquired in S3 with a first reference value, applying the AD values ​​to a first algorithm, or providing the AD values ​​to a first identification model such as a machine learning model. For example, the control unit 61 determines that an impact has been detected when the AD values ​​from the various sensors acquired in S3 exceed the first reference value. The control unit 61 determines that an impact has not been detected when the AD values ​​from the various sensors acquired in S3 do not exceed the first reference value.

[0061] If it is determined in S4 that an impact has been detected, step S5 is executed. That is, step S5 is executed in response to the impact detection. If it is determined in S4 that an impact has not been detected, step S1 is executed again.

[0062] In S5, the control unit 61 identifies the part of the medical device 10 that received the impact. Specifically, the control unit 61 compares the AD values ​​from the various sensors acquired in S3 with a second reference value, applies them to a second algorithm, or provides them to a second identification model such as a machine learning model, thereby identifying the directional axis of the part of the medical device 10 that received the impact and the posture at the time of the impact.

[0063] The AD value from the pressure sensor 41 indicates the pressure pressing the syringe plunger in the X-axis direction. The AD value from the remaining amount sensor 42 indicates the position of the syringe plunger in the X-axis direction, which is an index of the remaining amount of drug in the syringe. Therefore, when an impact on the X-axis occurs, such as when the syringe pump 11 is dropped in the X-axis direction, the control unit 61 can accurately detect the impact on the X-axis by referring to the AD values ​​from the pressure sensor 41 and the remaining amount sensor 42. The control unit 61 can also determine whether the impact was applied to the left side or the right side of the syringe pump 11, based on the difference in the amount or rate of change of the AD value.

[0064] Speaker 51 is disposed facing the back surface of syringe pump 11. As shown in Fig. 3, illuminance sensor 52 is disposed so as to be exposed outward from the front surface of syringe pump 11 on which display 70 is disposed. Therefore, when an impact occurs in the Y axis, such as when syringe pump 11 is dropped in the Y axis direction, control unit 61 can accurately detect the impact in the Y axis by referring to the AD values ​​from speaker 51 and illuminance sensor 52. Control unit 61 can also determine whether syringe pump 11 has received an impact on the back surface or the front surface, depending on whether speaker 51 detects a loud impact sound or illuminance reduction due to approaching an object such as a floor is detected by illuminance sensor 52.

[0065] The control unit 61 does not use the AD values ​​from the pressure sensor 41 and the remaining amount sensor 42 only to detect an impact in the X axis and the AD values ​​from the speaker 51 and the illuminance sensor 52 only to detect an impact in the Y axis, but can use a combination of the AD values ​​from the various sensors to detect an impact in the X axis, Y axis, and Z axis. Therefore, even when an impact in the Z axis occurs, such as when the syringe pump 11 is dropped in the Z axis direction, the control unit 61 can accurately detect the impact in the Z axis by referring to the AD values ​​from the various sensors. The control unit 61 can also determine whether the impact was applied to the top surface or the bottom surface of the syringe pump 11 by referring to the AD values ​​from the various sensors.

[0066] In S6, the control unit 61 outputs proposal data proposing maintenance of the parts of the medical device 10 corresponding to the part identified in S5. Specifically, the control unit 61 displays data proposing maintenance execution procedures for various parts such as the control board, the clutch / clutch board, the feed screw part, the IC tag, the syringe clamp, the encoder, the photo sensor, and the tact switch on the display 70 as proposal data according to the directional axis of the part of the medical device 10 that received the impact and the posture at the time of the impact, which were identified in S5. Alternatively, the control unit 61 may transmit similar data as proposal data to a user terminal or a server via the communication unit 63. The maintenance execution procedures may be determined, for example, based on the importance as shown in FIG. 6. In the example shown in FIG. 6, when the control unit 61 determines in S5 that the syringe pump 11 received an impact from the front, it outputs data proposing maintenance for the control board, the IC tag, the syringe clamp, and the tact switch as proposal data. When the control unit 61 determines in S5 that the syringe pump 11 has received an impact on the back side, it outputs data proposing maintenance of the IC tag and the syringe clamp as proposal data. When the control unit 61 determines in S5 that the syringe pump 11 has received an impact on the right side or left side, it outputs data proposing maintenance of the clutch / clutch board, the feed screw unit, the pressure sensor 41, the encoder, and the photosensor as proposal data. When the control unit 61 determines in S5 that the syringe pump 11 has received an impact on the top side, it outputs data proposing maintenance of the control board and the tact switch as proposal data. When the control unit 61 determines in S5 that the syringe pump 11 has received an impact on the bottom side, it outputs data proposing maintenance of the clutch / clutch board, the feed screw unit, and the pressure sensor 41 as proposal data.

[0067] As a modification of this embodiment, as shown in Fig. 7, the medical device 10 may be an infusion pump 12 that delivers the medicine flowing through the infusion tube by sequentially pressing the infusion tube. This modification will be described below.

[0068] The X-axis is an axis extending in the length direction of the infusion pump 12, the Y-axis is an axis extending in the width direction of the infusion pump 12, and the Z-axis is an axis extending in the height direction of the infusion pump 12.

[0069] As shown in FIG. 7, at least one first measurement sensor 40 includes an air bubble sensor 43 and a drip sensor 44. The air bubble sensor 43 is a sensor that measures the transmittance of ultrasonic waves in the infusion tube as an object that changes due to the impact of the first axis. The air bubble sensor 43 may be the same as that provided in a conventional infusion pump as disclosed in Patent Document 7. The drip sensor 44 is a sensor that measures the drip amount of a drug into the infusion tube as an object that changes due to the impact of the first axis. The drip sensor 44 may be the same as that provided in a conventional infusion pump as disclosed in Patent Document 5, such as a photosensor applied to an anti-free flow mechanism. At least one first measurement sensor 40 may include only one of the air bubble sensor 43 and the drip sensor 44, instead of including both the air bubble sensor 43 and the drip sensor 44.

[0070] As shown in FIG. 7, the at least one second measurement sensor 50 specifically includes an obstruction sensor 53 and a door sensor 54. The obstruction sensor 53 is a sensor that measures the obstruction degree of the infusion tube as an object that changes due to the impact of the second axis. The obstruction sensor 53 may be the same as that provided in a conventional infusion pump as disclosed in Patent Document 6. The door sensor 54 is a sensor that measures the opening and closing degree of a door attached to a main body that accommodates the infusion tube as an object that changes due to the impact of the second axis. The door sensor 54 may be the same as that provided in a conventional infusion pump, such as a magnetic sensor. The at least one second measurement sensor 50 may include only one of the obstruction sensor 53 and the door sensor 54, instead of including both the obstruction sensor 53 and the door sensor 54.

[0071] In this modification, when the control device 60 determines that an impact trigger has occurred on one or more of the X-axis, Y-axis, and Z-axis, the control device 60 determines whether or not an impact on one or more axes has occurred by referring to the outputs from the air bubble sensor 43, the drip sensor 44, the blockage sensor 53, and the door sensor 54. When the control device 60 determines that an impact on one or more axes has occurred, the control device 60 identifies the part of the infusion pump 12 that has received the impact by referring to the outputs from the air bubble sensor 43, the drip sensor 44, the blockage sensor 53, and the door sensor 54. The control device 60 outputs data proposing maintenance of the part of the infusion pump 12 corresponding to the identified part as proposal data.

[0072] This modification improves the accuracy of detecting an impact received by the infusion pump 12. Such improved accuracy in detecting an impact improves safety.

[0073] As the first measurement sensor 40, an increase in cost can be avoided by using existing sensors that are also provided in conventional infusion pumps, such as an air bubble sensor 43 and a drip sensor 44. As the second measurement sensor 50, an increase in cost can be avoided by using existing sensors that are also provided in conventional infusion pumps, such as an obstruction sensor 53 and a door sensor 54.

[0074] Moreover, according to this modification, since it is possible to identify the direction from which the infusion pump 12 received an impact, it is possible to identify the malfunctioning part, and maintenance efficiency is improved. Since it is also possible to link the direction from which the infusion pump 12 received an impact with the malfunctioning part, when feedback is given to the manufacturer that produced the medical device 10, it is easy to link it to product improvements, thereby improving the product value.

[0075] The present disclosure is not limited to the above-mentioned embodiment. For example, two or more blocks shown in the block diagram may be integrated, or one block may be divided. Instead of executing two or more steps shown in the flowchart in chronological order as described, they may be executed in parallel or in a different order depending on the processing capacity of the device executing each step, or as necessary. Other modifications are possible without departing from the spirit of the present disclosure. [Explanation of symbols]

[0076] 10 Medical Devices 11 Syringe pump 12 Infusion pump 20 Detection System 30 Detection sensor 31 Acceleration Sensor 40 First measurement sensor 41 Pressure Sensor 42 Remaining amount sensor 43 Air bubble sensor 44 Droplet Sensor 50 Second measurement sensor 51 Speaker 52 Illuminance sensor 53 Occlusion Sensor 54 Door Sensor 60 Control device 61 Control section 62 Storage section 63 Communications Department 70 Display

Claims

1. a detection sensor mounted on the medical device, the detection sensor detecting, as an impact trigger, a trigger for determining whether or not an impact has occurred on a first axis and a second axis perpendicular to the first axis; At least one measurement sensor mounted on the medical device and measuring an object that changes due to an impact along either the first axis or the second axis; a control device that monitors an output from the detection sensor to determine whether or not an impact trigger has occurred for at least one of the first axis and the second axis, and when it is determined that an impact trigger has occurred for the at least one axis, determines whether or not an impact has occurred for the at least one axis by referring to an output from the at least one measurement sensor; A detection system comprising:

2. The detection system according to claim 1 , wherein when the control device determines that an impact has occurred in at least one axis, the control device refers to an output from the at least one measurement sensor to identify the part of the medical device that has been impacted.

3. The detection system according to claim 2 , wherein the control device outputs proposal data proposing maintenance of a part of the medical device corresponding to the identified portion.

4. The at least one measurement sensor includes at least one first measurement sensor that measures an object that changes due to the impact on the first axis, and at least one second measurement sensor that measures an object that changes due to the impact on the second axis, The detection system of claim 1, wherein when the control device determines that an impact trigger in the at least one axis has occurred, the control device determines whether an impact in the at least one axis has occurred by referring to an output from the at least one first measurement sensor and an output from the at least one second measurement sensor.

5. The detection system of claim 4, wherein when the control device determines that an impact has occurred in at least one axis, the control device identifies the part of the medical device that has been impacted by referring to the output from the at least one first measurement sensor and the output from the at least one second measurement sensor.

6. The detection sensor further detects an impact trigger in a third axis perpendicular to the first axis and perpendicular to the second axis; 2. The detection system according to claim 1, wherein the control device determines whether an impact trigger has occurred on one or more of the first axis, the second axis, and the third axis as the impact trigger on the at least one axis, and determines whether an impact on one or more of the first axis, the second axis, and the third axis has occurred as the impact on the at least one axis.

7. The medical device is a syringe pump that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe, The detection system according to claim 1 , wherein the at least one measurement sensor includes a pressure sensor that measures a pressure applied to the syringe plunger as the target.

8. The medical device is a syringe pump that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe, The detection system of claim 1 , wherein the at least one measurement sensor includes a remaining amount sensor that measures a remaining amount of the drug in the syringe as the target.

9. The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system of claim 1 , wherein the at least one measurement sensor includes an air bubble sensor that measures the transmittance of ultrasound in the infusion tube as the target.

10. The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system according to claim 1 , wherein the at least one measurement sensor includes a drip sensor for measuring an amount of the drug dripped into the infusion tube as the target.

11. The detection system of claim 1 , wherein the at least one measurement sensor includes a speaker for measuring sound as the target.

12. The detection system of claim 1 , wherein the at least one measurement sensor includes an illuminance sensor for measuring illuminance of the target.

13. The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system of claim 1 , wherein the at least one measurement sensor includes an occlusion sensor for measuring the degree of occlusion of the infusion tube as the target.

14. The medical device is an infusion pump that sequentially presses an infusion tube to deliver a drug flowing through the infusion tube, The detection system according to claim 1 , wherein the at least one measurement sensor includes a door sensor that measures the degree of opening and closing of a door attached to a body that accommodates the infusion tube as the target.

15. The detection system according to claim 1 , wherein the detection sensor is an acceleration sensor.

16. A medical device comprising a detection system according to any one of claims 1 to 15.

17. A syringe pump that delivers a drug filled in a syringe by pushing a syringe plunger of the syringe, A detection system according to claim 4, The at least one first measurement sensor includes a pressure sensor that measures a pressure pressing the syringe plunger as an object that changes due to the impact of the first axis, a remaining amount sensor that measures a remaining amount of the drug in the syringe as an object that changes due to the impact of the first axis, or both the pressure sensor and the remaining amount sensor; The at least one second measurement sensor is a speaker that measures sound as an object that changes due to an impact on the second axis, an illuminance sensor that measures illuminance as an object that changes due to an impact on the second axis, or a syringe pump that includes both the speaker and the illuminance sensor.

18. An infusion pump that delivers a drug through an infusion tube by sequentially pressing the infusion tube, A detection system according to claim 4, the at least one first measurement sensor includes, as an object that changes due to the impact of the first axis, an air bubble sensor that measures the transmittance of an ultrasonic wave in the infusion tube, a drip sensor that measures the amount of the medicine dripped into the infusion tube, or both the air bubble sensor and the drip sensor, as an object that changes due to the impact of the first axis; The at least one second measurement sensor is an occlusion sensor that measures the degree of occlusion of the infusion tube as an object that changes due to an impact on the second axis, a door sensor that measures the degree of opening and closing of a door attached to a main body that houses the infusion tube as an object that changes due to an impact on the second axis, or an infusion pump that includes both the occlusion sensor and the door sensor.

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