KR102392801B1 - Patient safety management system using lidar sensor - Google Patents

Abstract

The present invention relates to a safety management system, which analyzes the position of a patient on a bed and the position of a handrail detected using a LiDAR sensor, transmits, if necessary, an image captured by a camera to an administrator so as to prevent the falling of the patient by the response of the administrator who checked the image, and further improves the convenience of management for the large number of patients hospitalized in hospital rooms. The patient safety management system using a LiDAR sensor according to the present invention comprises: a case fixed to a distal end of the bed provided inside the hospital room; a monitor unit for patients used for the purpose of managing the patients on the bed by being stored inside the case or going outside, in a state of being equipped with the LiDAR sensor and the camera; and a monitoring unit for management, which is installed in a nursing station outside the hospital room with the camera and is used for two-way communication with the monitor unit for patients and for managing the patients on the beds.

Description

Patient safety management system using lidar sensor

The present invention relates to a system for managing the safety of a patient hospitalized in a hospital room, and more particularly, by analyzing the position of the patient on the bed and the position of the handrail sensed using a lidar sensor, and shooting with a camera if necessary It relates to a safety management system that transmits the video to the manager to prevent a patient's fall by the manager's response to confirming the video, and further improves the convenience of managing a large number of patients in the hospital room will be.

Generally, the whole or part of a floor of a building accommodating hospitalized patients is referred to as a ward, and such a ward is a structure that includes an inpatient room consisting of single and multiple rooms, a nursing station where nurses work, restrooms, washrooms, and visiting rooms. In most cases, it is composed of

In other words, patients who are admitted to the ward are managed by doctors and nurses while staying in the hospital room alone or with other patients. You can freely enter and view business.

However, since many of the patients admitted to the ward have physical abnormalities or are in a state of discomfort due to surgery or old age, it can be said that the risk of a fall accident due to carelessness or unexpected unexpected situations is considerable. These may further increase the damage caused by falls.

Therefore, doctors and nurses in the ward should always pay attention and effort to prevent falls accidents in the ward, but because it is not possible to check and supervise all patients in real time due to practical reasons such as a shortage of manpower and invasion of privacy. The need for technical management in place of the

As related conventional inventions, inventions such as “Patient location tracking system using LiDAR” in Korean Patent Publication No. 10-1956009 and “Patient monitoring system for hospitals” in Korean Patent Publication No. 10-2020-0079600 have been proposed. has been disclosed

First, in the “Location Tracking System of Patient Using LiDAR” of Korean Patent Publication No. 10-1956009, 3 detected through a LiDAR sensor that rotates and performs a monitoring function while installed on the ceiling of a hospital room or hallway where a patient lives An invention related to a system that can quickly identify a patient's problem, such as a fall or wandering, has been proposed by estimating the patient's location using dimensional data and color data acquired through a texture mapping method.

In addition, in the “patient monitoring system for hospitals” of the Korean Patent Application Laid-Open No. 10-2020-0079600, the number of patients accommodated in the hospital room is measured by capturing a thermal image inside the hospital room accommodating the patient and analyzing the captured thermal image image. An invention has been proposed for a system that allows real-time identification and, at the same time, rapid identification of problems such as disease outbreaks and suicide attempts.

However, since the conventional inventions as described above are configured to analyze and determine the patient's condition using only data collected by a lidar sensor or a thermal imaging camera, and respond accordingly, an error of judgment by the system may occur. There is a problem that may result in unnecessary waste of manpower.

In addition, the conventional inventions as described above are only configured to quickly respond to accidents such as falls that have already occurred in the patient, and the prevention effect that can prevent accidents such as falls in advance cannot be expected or the effect is insignificant. There is a problem that occurs.

Therefore, it is possible to minimize the invasion of privacy of the patient by solving all of the above problems, to minimize the error in judgment about the patient's condition, to minimize unnecessary manpower wastage, and to prevent accidents such as falls in advance. There is a need for an invention related to an improved system configured to do so.

Republic of Korea Patent Publication No. 10-1956009 (2019.03.08.) Republic of Korea Patent Publication No. 10-2020-0079600 (2020. 07. 06.)

The patient safety management system using the lidar sensor according to the present invention is an invention proposed to solve the problems of the prior inventions as described above,

Since the conventional inventions are configured to analyze and determine the patient's condition using only data collected by a lidar sensor or a thermal imaging camera, and respond accordingly, an error in judgment by the system may occur, There is a problem that may result in unnecessary waste of manpower,

It is designed to quickly respond to accidents such as falls that have already occurred in the patient, but there is a problem that the preventive effect that can prevent accidents such as falls in advance cannot be expected or the effect is insignificant. Its purpose is to provide solutions to

The present invention is to realize the above object,

Case fixed to the distal end of the bed provided inside the hospital room; A monitor unit for a patient that is stored inside the case in a state in which the lidar sensor and the camera are provided or is used for managing the patient on the hospital bed by advancing to the outside; and a management monitor unit installed in a nursing station outside a hospital room with a camera, in bidirectional communication with the patient monitor unit, and used for managing a patient on a bed; It presents a patient safety management system using a lidar sensor, characterized in that it comprises a.

In this case, the patient monitor unit includes a screen unit for displaying an image; speakers that output sound; microphone to collect sound; a lidar sensor that scans the hospital bed and its surroundings to generate real-time scan information; a photographing unit which operates according to a photographing signal to photograph a front image; a communication unit that interactively communicates with the management monitor unit and transmits/receives various information including video and audio; an analysis unit that detects and analyzes the position of the patient on the bed and the railing installed on the bed based on the scan information, and classifies the current state of the patient into either a safe first state or a second state requiring management; and a generator for generating and transmitting a photographing signal for capturing an image when the current state of the patient classified by the analysis unit is a second state; It is characterized in that it comprises a.

In addition, the patient monitor unit is characterized in that it is configured to further include a calculation unit for calculating the time the patient leaves the bed based on the scan information, wherein the generating unit is the time when the patient leaves the bed reaches a preset time It is characterized in that it is configured to generate and transmit a photographing signal requesting the photographing of an image to the photographing unit, and to generate and transmit a notification signal requesting confirmation of the patient's condition to the communication unit.

A patient safety management system using a lidar sensor according to the present invention,

In normal times, only the lidar sensor is used to scan the hospital bed and its surroundings, and the image captured by the camera is used only in an emergency. By minimizing errors in judgment, there is an effect that can minimize unnecessary manpower wastage,

It is configured to detect and analyze the position and posture of the patient on the bed and the position of the handrail installed on the bed, so that it is possible to prevent accidents such as falls in advance.

1 is a state diagram of a patient safety management system using a lidar sensor according to the present invention.
Figure 2 is a configuration diagram showing a detailed configuration and operation embodiment of the lidar sensor.
3 is an external perspective view showing a case and a patient monitor unit.
4 is a flowchart illustrating a process in which a patient condition is classified by an analysis unit.
5 is an exemplary view showing an operating embodiment of the patient monitor unit in a state in which the calculation unit is added.

The present invention relates to a system for managing the safety of patients hospitalized in a hospital room,

In more detail, the case 100 is fixed to the distal end of the bed provided inside the hospital room; A monitor unit 110 for a patient that is stored inside the case 100 in a state in which the lidar sensor 114 and the camera is provided or is used for managing the patient on the hospital bed by going to the outside; and a management monitor unit 120 installed in a nursing station outside the hospital room with a camera, in bi-directional communication with the patient monitor unit 110, and used for managing a patient on the hospital bed; It relates to a patient safety management system using a lidar sensor, characterized in that it comprises a.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in Figure 1, the present invention is characterized in that it is configured to include a case 100 that is fixedly installed on the distal end side of the bed provided in the interior of the hospital room.

That is, the case 100 is a box-type device installed on a hospital bed, and is used for storage and use of the patient monitor unit 110 , and is used for height adjustment and maintenance of the patient monitor unit 110 . To improve manageability and ease of use.

At this time, the distal end side of the bed on which the case 100 is installed means the distal end in the direction in which the legs of the patient lying in the correct posture on the bed face, and the case 100 is installed in the form of being caught on the handrail installed on the distal end or handrail. can be installed instead of

Specifically, in the case 100, a space for storage of the patient monitor unit 110 is formed inside, an entrance for entry is formed at the top, and a device for elevation for elevation is provided inside, so that the hospital bed is bedridden. Depending on whether the patient is assigned to the patient, the patient monitor unit 110 is safely stored inside or exposed to the outside so that it can be used for patient safety management.

Therefore, the case 100 is most preferably made of a plastic material that can sufficiently secure both durability and waterproofness, and prevent injury to the patient due to a collision, and in addition, it is stored in an internal space. It may be configured to have a shock-resistant structure for sufficient protection of the phosphorus patient monitor unit 110 .

In addition, it is preferable that the case 100 is rounded so that all corners are not angled to prevent injury to the patient due to a collision.

In addition, the elevating device is preferably configured to automatically elevate the patient monitor unit 110, but may additionally be configured to enable manual operation by an administrator such as a nurse, and additionally automatically or A locking device for the purpose of preventing manual control may be provided.

That is, it is preferable that automatic or manual control of the elevating device is performed only by a manager such as a nurse for the purpose of preventing a gap in safety management for the patient on the hospital bed.

In addition, as shown in Figure 1, the present invention is stored in the interior of the case 100 in a state in which the lidar sensor 114 and the camera are provided or for the purpose of managing the patient on the hospital bed by advancing to the outside. It is characterized in that it is configured to include a monitor unit 110 for the patient to be used.

That is, the patient monitor unit 110 is a device that tracks and manages a patient located in a hospital bed using a lidar sensor 114 and a camera, and displays an image for the patient and outputs an audio to provide tracking management and patient safety at the same time. management so that it can be effectively implemented.

Specifically, as shown in FIG. 2 , the patient monitor unit 110 includes a screen unit 111 for displaying an image, a speaker 112 for outputting sound, a microphone 113 for collecting sound, a hospital bed and its Bi-directional communication with the lidar sensor 114 that scans the surroundings to generate real-time scan information, the photographing unit 115 that shoots an image in front by operating by a photographing signal, and the monitor unit 120 for management, And it may be configured to include a communication unit 116 for transmitting and receiving various information including voice.

In addition, as shown in FIG. 2 , the patient monitor unit 110 detects and analyzes the position of the patient on the bed and the position of the handrail installed on the bed based on the scan information generated by the lidar sensor 114 . Thus, the analysis unit 117 that classifies the current state of the patient into either a safe first state or a second state requiring management, and the image when the current state of the patient classified by the analysis unit 117 is the second state It may be configured to include a generating unit 118 that generates and transmits a photographing signal for photographing.

That is, as shown in FIG. 3 , the front surface of the monitor unit 110 for the patient is mostly composed of a screen unit 111 displaying an image, and on the left and right sides of the bezel constituting the edge of the screen unit 111 . A speaker 112 is provided, a microphone 113 is provided on the lower bezel, a lidar sensor 114 is provided on the upper surface, and a photographing unit 115 is provided on the upper bezel. However, it is not necessarily limited to this form.

In this case, the lidar sensor 114 may have a structural limitation such as being embedded in a bezel groove formed on one side of the bezel so as to scan only the front of the screen unit 111 .

In addition, the communication unit 116 , the analysis unit 117 , and the generation unit 118 are preferably provided inside the patient monitor unit 110 , and communicate with known display devices such as a TV and a computer monitor. A plurality of input means for performing operations such as on-off screen, volume control, option setting, etc. in the same or similar manner may be provided on the side or lower side of the patient monitor unit 110 .

In addition, a remote controller capable of remotely operating the screen on/off, adjusting the volume, setting options, etc. may be provided for each hospital bed, and each remote controller controls the patient monitor unit 110 installed in another bed It is preferable to be configured so that only one patient monitor unit 110 can be matched on a one-to-one basis so as not to occur.

More specifically, as shown in FIG. 2A , the lidar sensor 114 scans the hospital bed and its surroundings in real time to continuously generate scan information, and the analysis unit 117 scans generated in real time. Based on the information, it detects and analyzes the position and posture of the patient on the hospital bed and the position of the handrail installed on the bed.

At this time, as a result of the analysis, the analysis unit 117 may determine the current state as any one of a first state in which the patient is safe and a second state in which management is required, and the patient is in a safe state. In the first state, only the lidar sensor 114 performs its function, and the implementation of the next step does not occur.

However, in the second state, which is a necessary state managed by the patient, generation and transmission of a photographing signal by the generating unit 118 occurs, and capturing of an image by the photographing unit 115 receiving the photographing signal occurs. , the real-time image captured by the photographing unit 115 is transmitted to the management monitor unit 120 by the communication unit 116, so that the real-time image can be checked by a manager, such as a nurse, and corresponding response can be performed. .

That is, in the present invention, the effect of minimizing the invasion of the patient's privacy occurs by scanning the hospital bed and its surroundings using only the lidar sensor 114 normally. ) is configured to check the real-time image taken by

At this time, as a criterion for determining the first state and the second state by the analysis unit 117, the position and posture of the patient on the bed and the position of the handrail installed on the bed are All of them can be used, and basically, it is preferable to be classified into the second state only when the patient is located on the side of the bed, in a prone or lying position, and the handrail of the bed is in a state that does not protect the patient from falling.

That is, as shown in FIG. 4 , the analysis unit 117 classifies the patient's condition into the first state regardless of the patient's position or posture in the state in which the handrail of the bed is installed to protect the patient from falling. do.

In addition, as shown in Fig. 4, the analysis unit 117 is in a state in which the handrail of the bed is removed, and the patient is located on the side of the bed, but when the patient is sitting on the bed, the state of the patient is set to the first state. classify

In addition, as shown in Figure 4, the analysis unit 117 is the state in which the handrail of the bed is removed, and in a state where the patient is located at the center of the bed, regardless of the posture of the patient, the state of the patient in the first state classified as

However, the analysis unit 117 can classify the patient's condition into the second state even when the patient is located at the center of the bed according to the amount of activity during sleep of the patient normally learned in a state in which the handrail of the bed is removed. , it is possible to classify the patient's state as the second state even in a state in which the patient is seated on the side of the bed while facing the inside of the bed.

In addition, when decibels greater than or equal to a preset decibel (dB) value are collected by the microphone 113 , the analysis unit 117 may determine the patient's condition as a second state that requires management, and accordingly The generation and transmission of the photographing signal by the generation unit 118 are the same as described above.

In addition, as shown in FIG. 5 , the patient monitor 110 further includes a calculator 119 that calculates the time the patient leaves the bed based on the scan information generated by the lidar sensor 114 . may be included.

In this case, when the calculation unit 119 is included in the configuration of the patient monitor unit 110 , the generation unit 118 requests to take an image when the time when the patient leaves the bed reaches a preset time. It may be configured to generate and transmit a photographing signal to the photographing unit 115 , and to generate and transmit a notification signal requesting confirmation of a patient's condition to the communication unit 116 .

That is, the calculator 119 determines the current state as one of a state in which the patient is located on a bed and a state in which the patient is vacating the bed based on the scan information generated by the lidar sensor 114, , while the patient is on the bedside, maintain that condition and do not perform the next step.

However, in a state in which the patient leaves the bed, a count is performed using a timer to calculate the time the patient leaves the bed, and when the time the patient leaves the bed reaches a preset time, the generator 118 is The generation and transmission of a photographing signal occurs, and the photographing of an image by the photographing unit 115 occurs.

In addition, generation of the notification signal by the generating unit 118 is generated together, and the real-time image and the notification signal captured by the photographing unit 115 are transmitted to the management monitor unit by the communication unit 116, so that the nurse Check real-time video by the manager, etc. and respond accordingly.

On the other hand, when the calculation unit 119 is included in the configuration of the patient monitor unit 110, identification of the patient by the analysis unit 117 occurs, so that other patients in the calculation of the time the patient leaves the bed It is possible to avoid interference with calculations by

That is, the analysis unit 117 can secure information such as shape, area, length, etc. of the patient's face from the scan information by the lidar sensor 114, and obtain body information such as sitting height and shoulder width. It is possible to secure more, and by combining the obtained information, it is possible to always check whether the patient is the same.

Therefore, when another patient is placed in the bed instead of the patient who has departed from his/her designated bed, the calculation of time by the calculator 119 may not be stopped.

In addition, the patient monitor unit 110 may provide and display information such as a notice for a patient of the entire hospital in which the patient is hospitalized or a notice for a patient in a ward, a notice, and precautions, and the patient's Customized medical content based on a disease name or symptom may be provided and displayed, and a customized advertisement based on the patient's personal information may be provided and displayed.

That is, although there is a difference in degree depending on the type of hospital room (single room or multi-person room) for patients hospitalized in a hospital room, various matters to be observed according to community life such as responsibilities and duties occur, and the patient monitor unit 110 is By regularly displaying information such as notices, notifications, and precautions for

In addition, the patient monitor unit 110 may provide various customized medical contents for health promotion based on the patient's disease name or symptoms, and the customized medical contents provided to the patient may include various types of contents such as broadcast programs or hospital's own contents. It can be composed of different types of content, and the patient can directly select and watch it.

In addition, the patient monitor unit 110 may provide and display customized advertisements based on personal information provided to the hospital and agreed to use when the patient is hospitalized, such as the patient's gender, age, residential area, etc. A patient who has viewed the advertisement may purchase a product or service using a purchase page provided through the patient monitor unit 110 .

At this time, the provision of the customized advertisement by the patient monitor unit 110 is provided by the configuration of the lidar sensor 114 and the analysis unit 117 , the patient is positioned on the bedside, awake, and the patient monitor unit 110 ) can be configured to be provided only in the state of staring, and rewards for viewing customized advertisements are accumulated for patients on the bed, which can be used for purposes such as deduction of hospitalization costs.

That is, in a state in which the patient does not gaze at the patient monitor unit 110 , the customized advertisement being provided may be stopped, and the interrupted customized advertisement may be resumed when the patient gazes at the patient monitor unit 110 again, but at a certain time If it is not resumed until time elapses, the customized advertisement may be terminated, and only a portion of the reward according to the viewing may be paid according to the viewing time of the customized advertisement.

However, the provision of the customized advertisement by the patient monitor unit 110 is preferably limited to a certain amount on the basis of one day, and the provision should be stopped after a set bedtime.

In addition, the patient monitor 110 is connected to an oxygen saturation meter provided for the purpose of measuring the patient's oxygen saturation in a wired or wireless manner to transmit the patient's oxygen saturation to the management monitor 120 in real time. there is.

In addition, as shown in FIGS. 2 and 5 , the present invention is installed in a nursing station outside a hospital room with a camera, and is used for bidirectional communication with the patient monitor unit 110 and for managing a patient on the bed. It is characterized in that it is configured to include a management monitor unit 120 used as.

That is, the management monitor unit 120 is a device that allows a manager, such as a nurse located at a nursing station, to remotely manage a patient located on a hospital bed in connection with the patient monitor unit 110 , and the external appearance of the patient monitor unit is Although it may be configured to the same degree as 110 , it has a clear difference from the patient monitor unit 110 in some configurations and functions such as the lidar sensor 114 .

Specifically, the management monitor unit 120 is the same as the screen unit 111 , the speaker 112 , the microphone 113 , the photographing unit 115 , and the communication unit 116 provided in the patient monitor unit 110 . It is configured to have a configuration, but is configured not to include the configuration of the lidar sensor 114, the analysis unit 117, and the calculation unit 119, and in the case of the generator 118, there is a difference in function.

Accordingly, a manager, such as a nurse located at the nursing station, can collectively check the status of each patient through the management monitor unit 120 , and depending on the situation, through the image transmitted from the patient monitor unit 110 . It is possible to individually check the condition of the patient located on the bedside, and take measures to prevent the patient from falling by making a voice call or video call with the patient, or by directly visiting the patient's room.

In addition, a manager such as a nurse may conduct a voice call or a video call with the patient at the request of the patient, and, if necessary, to all the patient monitor units 110 or some patient monitor units 110 installed in the hospital room. announcements can be made.

The embodiments introduced above are provided as examples so that the technical idea of the present invention can be sufficiently conveyed to those of ordinary skill in the art to which the present invention belongs, and the present invention relates to the embodiments described above. It is not limited and may be embodied in other forms.

In order to clearly explain the present invention, parts irrelevant to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of components may be exaggerated or reduced for convenience.

Also, like reference numbers refer to like elements throughout.

100: case
110: patient monitor unit
→ 111: screen part → 112: speaker
→ 113: microphone → 114: lidar sensor
→ 115: shooting unit → 116: communication unit
→ 117: analysis unit → 118: generation unit
→ 119: calculator
120: management monitor unit

Claims (5)

Case 100 fixed to the distal end of the bed provided inside the hospital room;
A monitor unit 110 for a patient that is stored in the case 100 in a state in which the lidar sensor 114 and the camera is provided or is used for managing the patient on the hospital bed by advancing to the outside; and,
a management monitor unit 120 installed in a nursing station outside the hospital room with a camera, in bidirectional communication with the patient monitor unit 110, and used for managing a patient on the bed; It is characterized in that it comprises a
In the patient monitor unit 110,
It is configured so that information such as notices, notifications, and cautions for patients in the entire hospital where the patient is admitted or for patients in the ward can be provided and displayed;
It is configured to provide and display customized medical content based on the patient's disease name or symptom,
It is characterized in that the patient is positioned on the hospital bed and is configured so that a customized advertisement based on the patient's personal information can be provided and displayed only in the awake state,
A patient safety management system using a lidar sensor, characterized in that the patient is configured to receive a reward according to the viewing of a customized advertisement, and to be used for deduction of hospital expenses.
According to claim 1,
The patient monitor unit 110,
a screen unit 111 for displaying an image;
a speaker 112 for outputting sound;
a microphone 113 for collecting sound;
a lidar sensor 114 that scans the hospital bed and its surroundings to generate real-time scan information;
a photographing unit 115 which operates according to a photographing signal to photograph an image of the front;
a communication unit 116 for bidirectional communication with the management monitor unit 120 and transmitting and receiving various information including video and audio;
Based on the scan information, the position and posture of the patient on the hospital bed, and the position of the railing installed on the bed are detected and analyzed, and the current state of the patient is classified into either a safe first state or a second state that requires management. part 117; and,
a generating unit 118 that generates and transmits an imaging signal for imaging an image when the current state of the patient classified by the analysis unit 117 is a second state; Patient safety management system using a lidar sensor, characterized in that it comprises a.
3. The method of claim 2,
The patient monitor unit 110,
Characterized in that it is configured to further include a calculation unit 119 that calculates the time the patient leaves the bed based on the scan information,
The generating unit 118,
When the time that the patient leaves the bed reaches a preset time, a photographing signal requesting image capture is generated and transmitted to the photographing unit 115, and a notification signal requesting confirmation of the patient's condition is generated and the communication unit ( Patient safety management system using a lidar sensor, characterized in that configured to transmit to 116). delete delete

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