Installation status determination method, installation status determination system, and computer program

Abstract

To provide an attachment state determination method that can assist with the work of a healthcare professional to reduce the workload and reduce human error, an attachment state determination system, and a computer program.SOLUTION: An attachment state determination method detects a first identifier provided on an indwelling catheter indwelt in a living body and a second identifier provided on a dressing material for fixing the indwelling catheter and determines an attachment state of at least one of the indwelling catheter and the dressing material based on relative positions of the detected first identifier and the second identifier.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an attachment state determination method, an attachment state determination system, and a computer program. [Background Art]

[0002] In a medical setting, a plurality of medical devices and related devices may be used for a single patient. In particular, operating rooms and intensive care units use more medical devices than general wards. Patent Document 1 discloses an infusion set provided with connection portions at both ends of an infusion tube, as an example of a medical device. [Prior Art Literature] [Patent Literature]

[0003] [Patent Document 1] Japanese Unexamined Patent Publication No. 2005-334280 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] Since any trouble in these medical devices directly affects the patient's health condition, the management and observation of medical devices has become one of the important tasks of medical staff, and the current situation is that much effort and time are spent on such work.

[0005] The present invention has been made in view of such circumstances, and an object thereof is to provide an attachment state determination method, an attachment state determination system, and a computer program that can assist the work of medical staff to reduce work load and human error. [Means for Solving the Problem]

[0006] (1) The mounting state determination method according to the present invention detects a first identifier provided on an indwelling catheter placed in a living body and a second identifier provided on a dressing material for fixing the indwelling catheter, and determines the mounting state of at least one of the indwelling catheter and the dressing material based on the relative positions of the detected first identifier and second identifier. Herein, embodiments of the present invention are as follows: (2) The mounting status determination method described in (1) above determines that the mounting status is normal if the separation distance between the first identifier and the second identifier is less than a predetermined threshold. (3) The mounting condition determination method described in (1) or (2) above determines that the mounting condition is abnormal if the separation distance between the first identifier and the second identifier is greater than or equal to a predetermined threshold. (4) If any one of the mounting condition determination methods (1) to (3) above determines that the mounting condition is abnormal, an alarm will be output. (5) Any one of the mounting status determination methods (1) to (4) above outputs a first alarm if the separation distance between the first identifier and the second identifier is greater than or equal to a predetermined first threshold and less than a second threshold greater than the first threshold, and outputs a second alarm different from the first alarm if the separation distance between the first identifier and the second identifier is greater than or equal to the second threshold. (6) In any one of the mounting status determination methods described in (1) to (5) above, the first identifier and the second identifier include a barcode. (7) Any one of the mounting status determination methods described in (1) to (6) above involves photographing the indwelling catheter and the dressing material with an imaging device to detect the first identifier and the second identifier, and determining the mounting status based on the image obtained from the photograph. (8) The mounting status determination system according to the present invention comprises a detection unit that detects a first identifier provided on an indwelling catheter placed in a living body and a second identifier provided on a dressing material for fixing the indwelling catheter, and a determination unit that determines the mounting status of at least one of the indwelling catheter and the dressing material based on the relative positions of the detected first identifier and second identifier. (9) The computer program according to the present invention causes the computer to perform a process of detecting a first identifier provided on an indwelling catheter placed in a living body and a second identifier provided on a dressing material for fixing the indwelling catheter, and determining the attachment state of at least one of the indwelling catheter and the dressing material based on the relative positions of the detected first identifier and second identifier. [Effects of the Invention]

[0007] According to the present invention, it is possible to assist the work of medical professionals, thereby reducing their workload and minimizing human errors. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows an example of the configuration of the medical device mounting status determination system according to this embodiment. [Figure 2] This figure shows an example of multiple medical devices used for a single patient. [Figure 3] This diagram shows an overview of the processing performed by the information processing device. [Figure 4] This figure shows an example of output information. [Figure 5] This diagram shows the process of determining the attachment status of an indwelling catheter (indwelling needle). [Figure 6] This figure shows an example of the area surrounding an indwelling catheter. [Figure 7] This figure shows an example of a method for determining the attachment status of an indwelling catheter or dressing material. [Figure 8] This figure shows an example of the processing procedure of an information processing device. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below. Figure 1 is a diagram showing an example of the configuration of the mounting status determination system of this embodiment. The mounting status determination system comprises an input device 10, an output device 20, an information processing device 50, and a management device 100. The management device 100 can access the electronic medical record 110. The information processing device 50 is connected to the management device 100 via a communication network 1. Medical devices include, but are not limited to, infusion bags, infusion labels, infusion sets, pumps, triple stopcocks (three-way stopcocks), backflow prevention valves, extension tubes, indwelling needles (including indwelling catheters and inner needles, etc.), and vascular access devices.

[0010] The input device 10 may be, for example, an AR (Augmented Reality) goggle, a smartphone, a tablet device, or a camera. The input device 10 can photograph medical devices or the connection points between medical devices and output the captured images to the information processing device 50. Since each connection point of a medical device is provided with a unique identifier, the captured images will include the identifier. In this embodiment, a two-dimensional barcode is used as an example of an identifier, but the identifier is not limited to a two-dimensional barcode as long as it can identify the connection point. The input device 10 can also photograph the operations and actions of medical personnel or the actions of patients and output the captured images to the information processing device 50. The input device 10 may also be a reading device such as a barcode reader that reads two-dimensional barcodes attached to medical devices.

[0011] The management device 100 can be configured as, for example, a server or a PC (personal computer). The management device 100 includes a control unit for controlling the entire device, a communication module, and a hard disk or semiconductor memory capable of recording necessary information. The management device 100 records treatment-related information about the medical device, associated with the unique identifier of the medical device. Treatment-related information includes, but is not limited to, pump operation information (e.g., flow rate), information from monitoring equipment such as leak detection and bedside monitors, patient information such as the patient's electronic medical record, and PC information. The information processing device 50 can send and receive necessary information with the management device 100.

[0012] The output device 20 may be any of the following: a monitor, AR goggles, a smartphone, a tablet device, or a PC. The output device 20 can display the processing results from the information processing device 50.

[0013] The information processing device 50 comprises a control unit 51 that controls the entire device, a communication unit 52, an interface unit 53, an image processing unit 54, a memory 55, and a storage unit 56. The storage unit 56 can be configured as, for example, a hard disk or semiconductor memory, and stores a computer program 60 (program product) and necessary information. The computer program 60 may be downloaded from an external device via the communication unit 52 and stored in the storage unit 56. Alternatively, the computer program 60 recorded on a recording medium (for example, an optically readable disc storage medium such as a CD-ROM) may be read by a recording medium reading unit and stored in the storage unit 56. The information processing device 50 may be configured so that the functions are shared among multiple information processing devices.

[0014] The control unit 51 is configured with the required number of CPUs (Central Processing Units), MPUs (Micro-Processing Units), GPUs (Graphics Processing Units), etc. The control unit 51 can execute the processes defined in the computer program 60. In other words, the processing performed by the control unit 51 is also the processing performed by the computer program 60.

[0015] The computer program 60 can be deployed to be executed on a single computer or on a plurality of computers interconnected via a communication network.

[0016] The communication unit 52 includes a communication module, and is capable of transmitting and receiving required information to and from the management apparatus 100 via the communication network 1.

[0017] The memory 55 can be formed of a semiconductor memory such as SRAM (Static Random Access Memory), DRAM (Dynamic Random Access Memory), or flash memory. The computer program 60 can be loaded into the memory 55, and the control unit 51 can execute the computer program 60.

[0018] The interface unit 53 implements an interface function between the input device 10 and the output device 20.

[0019] The image processing unit 54 determines, based on an image acquired from the input device 10, whether or not a two-dimensional barcode provided at a connection portion between medical devices is in a predetermined state. Further, the image processing unit 54 can determine an operation or action of a medical worker or an action of a patient based on the image acquired from the input device 10. Further, the image processing unit 54 can cause the output device 20 to display the image acquired from the input device 10 as it is, or after performing necessary size conversion or the like thereon.

[0020] Figure 2 shows an example of multiple medical devices used for one patient. In Figure 2, each medical device is connected so that intravenous fluids can be administered from four infusion bags to one patient. Note that the connection configuration of the medical devices is just one example and is not limited to the example in Figure 2. In addition, many more medical devices are used in actual medical settings, but for convenience, this specification will use the example in Figure 2 for explanation. Infusion fluids include, for example, drug solutions, corrective electrolytic solutions, and physiological saline, which can be administered to the body. The types of drugs in drug solutions include, but are not limited to, sedatives, intravenous anesthetics, anesthetic analgesics, local anesthetics, non-depolarizing muscle relaxants, vasopressors, antihypertensives, coronary vasodilators, diuretics, antiarrhythmics, bronchodilators, hemostatic agents, vitamins, antibiotics, and lipid emulsions. A two-dimensional barcode is provided at the connection point of the medical device, and an ID is assigned to identify the connection point of the medical device.

[0021] As shown in Figure 2, one connector (ID:0003) of the infusion set is connected to the connector (ID:0002) of the infusion bag to which a label (ID:0001) is attached. A pump (ID:0010) is installed in the middle of the infusion set. The other connector (ID:0003) of the infusion set is connected to the first connector (ID:0004) of a triple stopcock, and the second connector (ID:0004) of the triple stopcock is connected to one connector (ID:0005) of an extension tube (extension). The other connector (ID:0005) of the extension tube is connected to the connector (ID:0006) of an indwelling needle, which is placed in the patient's blood vessel (vein). More specifically, the inner needle of the indwelling needle, which includes an indwelling catheter and an inner needle, is withdrawn from the vein (living body), and the indwelling catheter is placed in the vein. In this specification, the terms "indwelling needle" and "indwelling catheter" are treated as synonymous.

[0022] One connector (ID:0058) of the infusion set is connected to the connector (ID:0055) of the infusion bag to which the label (ID:0051) is attached. The third connector (ID:0004) of the triple stopcock is connected to the other connector (ID:0058) of the infusion set.

[0023] One connector (ID:0105) of the infusion set is connected to the connector (ID:0222) of the infusion bag to which the label (ID:0123) is attached. The other connector (ID:0105) of the infusion set is connected to the fourth connector (ID:0004) of the triple stopcock.

[0024] One connector (ID:0089) of the infusion set is connected to the connector (ID:0036) of the infusion bag to which the label (ID:1018) is attached. A pump (ID:0981) is installed in the middle of the infusion set. The fifth connector (ID:0004) of the triple stopcock is connected to the other connector (ID:0089) of the infusion set.

[0025] Figure 3 shows an overview of the processing performed by the information processing device 50. The information processing device 50 receives image data from the input device 10 and treatment-related information from the management device 100. Image data includes, for example, image data of medical devices (including related devices) and connections between medical devices, image data of operations and actions of medical personnel, and image data of patient movements. Medical devices include, but are not limited to, infusion bags, infusion sets, triple stopcocks, extension tubes, indwelling needles, pumps, and labels. Treatment-related information includes, but is not limited to, electronic medical record information, PC information, pump operation information (operating status), and information from monitoring devices such as leak detection and bedside monitors.

[0026] The information processing device 50 uses the input image data and treatment-related information to perform predetermined processing and output output information. The output information is output to the output device 20 for display, etc., and also output to the management device 100 for recording. The output information includes, but is not limited to, the status of medical devices (e.g., the status of connections between medical devices, the operating status of medical devices, etc.), patient information, the results of comparison with the electronic medical record, and necessary alerts.

[0027] Next, we will explain specific examples of output information.

[0028] Figure 4 shows an example of output information. The output information can be displayed on the display panel of a smartphone or tablet device, the monitor of a personal computer, or the AR glasses of AR goggles. First, healthcare professionals use AR goggles, a smartphone, or a tablet device to photograph each connection point of multiple medical devices (see Figure 2) installed in the operating room, intensive care unit, or patient room. The connection points include, for example, connection points with 2D barcodes that record "IV bag ID: 0002" and "IV set ID: 0003". If a camera installed in the operating room, intensive care unit, or patient room can photograph each connection point of multiple medical devices, that camera may be used. The timing of the photography may be predetermined, or it may be when a new medical device is added or when healthcare professionals change shifts.

[0029] In the example shown in Figure 4, the output information includes the connection status of medical devices, label information, pump information, and patient information. First, the connection status of medical devices includes the connection status of multiple medical devices and the connection status of the connections between medical devices (connection OK: connected, connection NG: not connected). In the example in Figure 4, the connection status of medical devices is illustrated and displayed in a way that makes it easy to see that the devices are connected in the order of "label: 1018" - "infusion bag: 0036" - "infusion set: 0089" - "triple stopcock: 0004" - "extension tube: 0005" - "indwelling needle: 0006", and that "pump: 0981" is connected in the middle of "infusion set: 0089". Furthermore, the connection status between medical devices is displayed for each connection point: between "IV bag:0036" and "IV set:0089", between "IV set:0089" and "triple stopcock:0004", between "triple stopcock:0004" and "extension tube:0005", and between "extension tube:0005" and "indwelling needle:0006" (in the example diagram, <Connection OK>).

[0030] Label information can be obtained by healthcare professionals by photographing the label attached to the IV bag. Label information includes, for example, image data of the label, patient ID (which may include name and age), and drug name. Depending on the label's content, the label information may also include drug dosage and drug components.

[0031] Pump information can be integrated by obtaining medical-related information linked to the pump ID from the management device 100. Pump information includes, for example, the flow rate set for the pump and the planned amount (dosage).

[0032] Patient information can be generated from the patient's electronic medical record, etc., which can be obtained from the management device 100. Patient information includes, but is not limited to, patient ID, name, age, gender, name of administered drug, duration of administration, dosage, and disease name.

[0033] Next, we will explain how the information processing device 50 (control unit 51) determines the attachment status of the indwelling catheter (indwelling needle).

[0034] Figure 5 shows the process of determining the placement status of an indwelling catheter (indwelling needle). A healthcare professional uses an input device 10, such as a smartphone, tablet, or AR goggles, to photograph the arm of the patient in which the indwelling catheter (ID:0006) is placed, ensuring that the catheter is included. The healthcare professional only needs to take a photograph using the input device 10 each time the placement status needs to be determined.

[0035] Figure 6 shows an example of the area around an indwelling catheter. Figure 6 shows an image taken by the input device 10. As shown in Figure 6, an extension tube is connected to the catheter hub of the indwelling catheter. The tip of the indwelling catheter is inserted into the patient's vein. A dressing material for securing the indwelling catheter is attached to the patient's arm so as to cover part of the indwelling catheter and extension tube. The dressing material secures part of the indwelling catheter and extension tube to the patient's arm.

[0036] The catheter hub of the indwelling catheter is assigned a unique identifier. Specifically, a sticker with a 2D barcode is affixed to the catheter hub. The dressing material is also assigned a unique identifier. Specifically, a sticker with a 2D barcode is affixed to the dressing material. When the tip of the indwelling catheter is inserted into the vein (the indwelling catheter is in place), the initial value is the distance between the identifier of the indwelling catheter and the identifier of the dressing material. Note that the dressing material shown in Figure 6 is just an example and is not limited to the shape or form of the dressing material shown. Also, the identifier is shown schematically and may be other shapes or patterns, and is not limited to the example in Figure 6.

[0037] As described above, the control unit 51 detects a first identifier provided on the indwelling catheter placed in the body and a second identifier provided on the dressing material used to secure the indwelling catheter. Specifically, the control unit 51 can detect the first and second identifiers based on images obtained by capturing the indwelling catheter and dressing material with the input device 10. The control unit 51 also records the separation distance between the detected first and second identifiers as an initial value in the storage unit 56. The initial value is the separation distance in the initial state when the indwelling catheter is placed in the patient.

[0038] The control unit 51 can determine the attachment status of at least one of the indwelling catheter and the dressing material based on the relative positions of the detected first and second identifiers. Specifically, the control unit 51 can determine the attachment status based on images obtained by capturing the indwelling catheter and the dressing material with the input device 10.

[0039] As described above, by simply photographing the indwelling catheter and dressing material with the input device 10, the attachment status of the indwelling catheter and dressing material can be determined, thus assisting the work of medical professionals and reducing their workload. Furthermore, it is possible to easily identify situations where the indwelling catheter or dressing material has come loose despite being placed and secured with a dressing material by medical professionals, thereby reducing human error.

[0040] Figure 7 shows an example of a method for determining the attachment status of an indwelling catheter or dressing material. Figure 7 shows the separation distance between the first identifier of the indwelling catheter and the second identifier of the dressing material. As shown in Figure 7, the separation distance is defined as the distance between the opposing edges of the two identifiers (2D barcodes), but it is not limited to this, and may also be the separation distance between predetermined positions (e.g., center, corner, etc.) of the 2D barcode.

[0041] Figure 7A shows a state where the separation distance between the first identifier and the second identifier is d1, and the separation distance d1 is equal to the initial value, or greater than the initial value but less than the first threshold Th1. In the case of Figure 7A, it can be determined that the attachment state of at least one of the indwelling catheter and the dressing material is normal. Thus, the control unit 51 can determine that the attachment state is normal when the separation distance between the first identifier and the second identifier is less than a predetermined threshold (first threshold Th1).

[0042] Figure 7B shows a state where the separation distance between the first identifier and the second identifier is d2, and the separation distance d2 is greater than or equal to the first threshold Th1 and less than the second threshold Th2 (> first threshold Th1). In the case of Figure 7B, it can be determined that the attachment state of at least one of the indwelling catheter and the dressing material is abnormal. Thus, the control unit 51 can determine that the attachment state is abnormal if the separation distance between the first identifier and the second identifier is greater than or equal to a predetermined threshold (first threshold Th1). Furthermore, if the control unit 51 determines that the attachment state is abnormal, it may output an alarm (alert). The alarm output may be an audio (sound effect) output, or it may be by means of displaying text, lighting or flashing a warning light, etc. It may also send an email or message notification to the mobile device of the medical professional in charge.

[0043] As shown in Figure 7C, by setting a second threshold Th2 in addition to the first threshold Th1, it is possible to distinguish the degree of abnormality in the mounting condition and issue a warning. Figure 7C shows a state where the separation distance between the first identifier and the second identifier is d3, and the separation distance d3 is greater than or equal to the second threshold Th2.

[0044] As shown in Figure 7B, the control unit 51 can output a first alarm if the separation distance between the first identifier and the second identifier is greater than or equal to a predetermined first threshold Th1 and less than the second threshold Th2. The first alarm should, for example, notify that the indwelling catheter or dressing material is not completely detached but is in a state of partial detachment.

[0045] As shown in Figure 7C, the control unit 51 can output a second alarm if the separation distance between the first identifier and the second identifier is greater than or equal to a predetermined second threshold Th2. The second alarm may contain information that indicates, for example, that the indwelling catheter or dressing material has become completely detached. Furthermore, the second alarm can be given in a manner that indicates a higher degree of urgency than the first alarm. For example, the first alarm may emit a warning sound at predetermined intervals, while the second alarm may emit a warning sound at shorter intervals or a continuous warning sound. This allows healthcare professionals to easily determine the degree of abnormality in the attachment of the indwelling catheter or dressing material.

[0046] Figure 8 shows an example of the processing procedure of the information processing device 50. For convenience, the main processing unit will be described as the control unit 51. The control unit 51 acquires image data showing the identifiers (first identifier and second identifier) ​​of the indwelling catheter and dressing material respectively (S11). The control unit 51 determines whether the separation distance between the identifiers is less than the first threshold Th1 (S12).

[0047] If the separation distance is not less than the first threshold Th1 (NO in S12), the control unit 51 determines whether the separation distance is greater than or equal to the first threshold Th1 and less than the second threshold Th2 (S13). If the separation distance is greater than or equal to the first threshold Th1 and less than the second threshold Th2 (YES in S13), the control unit 51 determines that the indwelling catheter or dressing material is about to come loose (S14), outputs a first alarm (S15), and terminates the process.

[0048] If the separation distance is greater than or equal to the first threshold Th1 and not less than the second threshold Th2 (NO in S13), that is, if the separation distance is greater than or equal to the second threshold Th2, the control unit 51 determines that the indwelling catheter or dressing material has come loose (S16), outputs a second alarm (S17), and terminates the process.

[0049] If the separation distance is less than the first threshold Th1 (YES in S12), the control unit 51 determines that the attachment status of the indwelling catheter and dressing material is normal (S18) and determines whether the infusion has finished or not (S19). If the infusion has not finished (NO in S19), the control unit 51 continues the processing from step S11 onwards. If the infusion has finished (YES in S19), the control unit 51 terminates the processing.

[0050] As described above, this implementation configuration makes it easy to manage and observe medical devices, assisting the work of medical professionals and thus reducing workload and human error. [Explanation of Symbols]

[0051] 1. Communication Network 10 Input devices 20 Output device 50 Information Processing Devices 51 Control Unit 52 Communications Department 53 Interface section 54 Image Processing Unit 55 memory 56 Memory section 60 Computer Programs 100 Management device 110 Electronic Medical Records

Claims

1. The system detects a first identifier provided on an indwelling catheter placed in the body and a second identifier provided on a dressing material used to secure the indwelling catheter. Based on the relative positions of the detected first and second identifiers, the mounting status of at least one of the indwelling catheter and the dressing material is determined. Method for determining the installation status.

2. If the distance between the first identifier and the second identifier is less than a predetermined threshold, the mounting condition is determined to be normal. The mounting status determination method according to claim 1.

3. If the distance between the first identifier and the second identifier is greater than or equal to a predetermined threshold, the mounting condition is determined to be abnormal. The mounting status determination method according to claim 1.

4. If the aforementioned mounting condition is determined to be abnormal, an alarm will be output. The mounting status determination method according to claim 3.

5. If the separation distance between the first identifier and the second identifier is greater than or equal to a predetermined first threshold and less than a second threshold greater than the first threshold, a first alarm is output. If the separation distance between the first identifier and the second identifier is greater than or equal to the second threshold, a second alarm different from the first alarm is output. A method for determining the mounting state according to any one of claims 1 to 4.

6. The first identifier and the second identifier include a barcode. A method for determining the mounting state according to any one of claims 1 to 4.

7. The indwelling catheter and the dressing material are photographed with an imaging device to detect the first identifier and the second identifier. Based on the image obtained by taking the photograph, the mounting state is determined. A method for determining the mounting state according to any one of claims 1 to 4.

8. A detection unit for detecting a first identifier provided on an indwelling catheter placed in the body and a second identifier provided on a dressing material for fixing the indwelling catheter, A determination unit that determines the mounting state of at least one of the indwelling catheter and the dressing material based on the relative positions of the detected first and second identifiers. Equipped with, Installation status determination system.

9. On the computer, The system detects a first identifier provided on an indwelling catheter placed in the body and a second identifier provided on a dressing material used to secure the indwelling catheter. Based on the relative positions of the detected first and second identifiers, the mounting status of at least one of the indwelling catheter and the dressing material is determined. A computer program that executes a process.

10. The mounting state is determined based on whether the amount of change from the reference position exceeds a predetermined threshold, with the relative position in the first state in which the indwelling catheter is placed in the living body being used as the reference position. The mounting status determination method according to claim 1.

11. A first identifier and a second identifier are detected based on an image captured by an imaging device. The mounting status determination method according to claim 1.

Images