WO2023106679A1 - Method for providing information about decubitus and device using same - Google Patents

Abstract

The present invention relates to a method for providing information about decubitus, implemented by a processor, and provides a method for providing information about decubitus and a device for providing information about decubitus by using same, the method comprising the steps of: receiving a medical image including a lesion of an object; determining decubitus characteristics of the lesion by using a prediction model configured to predict decubitus characteristics using the medical image as an input; and determining information about decubitus of the object on the basis of the decubitus characteristics, wherein the decubitus characteristics include at least one of a stage of the lesion, a location of the lesion, a type of a necrotic tissue, an amount of necrotic tissues, presence of a granulation tissue, and presence of epithelialization.

Description

Method for providing information on pressure sores and device using the same

The present invention relates to a method for providing information on pressure sores and a device using the same.

Bedsores are diseases in which local tissue damage occurs due to impaired blood circulation in a body part when constant pressure and friction are applied to a patient with impaired mobility who maintains a fixed posture for a long time.

The site of pressure ulcer may be localized, but if it progresses severely, it is vulnerable to infection and can lead to various life-threatening complications such as sepsis and meningitis. Therefore, recurrence is common even after treatment, and it may take a considerable period of time to recover to the original state.

Therefore, pressure sores are pointed out as a disease in which 'prevention and management' is the key, requiring special attention from patients, guardians, and users.

Accordingly, the characteristics of pressure ulcers that require constant management are reflected, and systematic prevention and management plans that can reduce socio-economic costs for pressure ulcer management are continuously required.

The background description of the invention has been prepared to facilitate understanding of the present invention. It should not be construed as an admission that matters described in the background art of the invention exist as prior art.

As a way to overcome the above-mentioned limitations, a lesion evaluation system has been proposed that images the lesion using a hyperspectral camera and visualizes hemoglobin and oxygen in the tissue.

However, the proposed lesion evaluation system may have limitations in that it is difficult to apply to actual clinical practice due to high cost burden due to the use of a hyperspectral camera and low sensitivity and specificity.

Furthermore, a platform that receives a smartphone picture, a video showing the depth, and a questionnaire about the degree and condition of infection from a bedsore patient at home, and based on this, the user calculates the PSST score and recommends a dressing formulation that meets the questionnaire results this has been suggested

However, the proposed platform may still have limitations in that it corresponds to remote medical treatment in which a user directly checks patient data and takes appropriate action.

On the other hand, the inventors of the present invention, as a solution to the above-mentioned problems, tried to develop a system capable of determining the position of a pressure sore lesion of a patient and continuously evaluating the condition of a pressure sore.

In particular, the inventors of the present invention evaluate the type and amount of necrotic tissue, granulation tissue, and epithelialization using an artificial neural network-based prediction model, and develop a new pressure ulcer information providing system that provides information on the degree of improvement. , to overcome the limitations of conventional systems.

More specifically, the inventors of the present invention provide the stage and location of the pressure ulcer lesion using an image of the pressure ulcer lesion with respect to a pressure ulcer information providing system, and furthermore, the type and amount of necrotic tissue and granulation tissue We tried to apply a predictive model that can provide more specific clinical information, such as presence or absence of epithelialization.

As a result, the inventors of the present invention have developed a new system for providing information on pressure ulcers based on a predictive model.

On the other hand, the inventors of the present invention, with respect to a system for providing information on pressure ulcers, clinical characteristics that are difficult to confirm only with medical images, for example, information on the size, depth and boundary of a lesion, and furthermore, information such as the type and amount of exudate that can be obtained from the user Data was further applied.

Furthermore, the inventors of the present invention can design a system for providing information on pressure ulcers to suggest guidelines for customized measures for patients, determine the degree of improvement of pressure ulcer lesions over time, and recommend appropriate pressure ulcer management/prevention methods. there was.

Through this, the inventors of the present invention could expect to be able to provide a patient-specific prevention and management solution.

In particular, by providing a novel pressure ulcer evaluation system, the inventors of the present invention could expect a reduction in the incidence of pressure ulcers due to pressure ulcer prevention, a reduction in the morbidity of severe pressure ulcers through pressure ulcer condition monitoring, and a reduction in medical expenses for the elderly through prevention and management.

In particular, the inventors of the present invention could expect that the new pressure ulcer evaluation system could comprehensively consider the patient's environment, such as the patient's age, nutritional status, and socioeconomic ability, so that appropriate measures could be implemented for the patient's individual situation. .

Therefore, the problem to be solved by the present invention is configured to monitor various clinical conditions for medical images of pressure ulcer lesions using an artificial neural network-based predictive model, and to present guidelines or evaluate improvement status based on this , To provide a method for providing information on pressure sores and a device using the same.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above problems, a method for providing information on pressure sores according to an embodiment of the present invention is provided. A method for providing information on pressure ulcers according to an embodiment of the present invention includes the steps of receiving a medical image implemented by a processor and including a lesion of an object; using the medical image as an input, a predictive model configured to output pressure ulcer characteristics; determining the pressure sore characteristics of the lesion, and determining information about the pressure sore of the individual based on the pressure sore characteristics. At this time, the characteristics of the pressure sore are at least one of the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, presence of granulation tissue, and presence of epithelialization.

According to a feature of the present invention, the method further comprises the step of receiving entity data after the step of determining the characteristics of the pressure sore, wherein the step of determining the information on the pressure sore is based on the characteristics of the pressure sore and the entity data. It may include determining information about,

According to the characteristics of the present invention, the subject data may be at least one of the size of the lesion, the depth of the lesion, the data of the boundary of the lesion, the degree of erosion of the lesion, the type of exudate, the color of the skin around the lesion, the amount of the exudate, and whether peripheral tissue edema exists. can

According to another feature of the present invention, the step of determining information on pressure ulcers includes calculating a lesion severity score, which is defined as the degree of progression of the pressure ulcer, based on the pressure ulcer characteristics, and based on the lesion severity score, a score associated with the prognosis of the individual The step of determining information may be further included.

According to another feature of the present invention, the method further comprises the step of receiving location data of the object, and after calculating the lesion severity score, if the lesion severity score is equal to or greater than a predetermined level, the previously received professional medical care The method may further include determining a nearby professional medical institution based on the institution data and the location data.

According to another feature of the present invention, the determining of information on pressure ulcers may further include determining a degree of improvement based on previously received comparison pressuresore characteristics and pressuresore characteristics.

According to another feature of the present invention, the determining of information on pressure sores may further include determining pressure sore management data corresponding to characteristics of pressure sores based on previously received pressure sore management data.

According to another feature of the present invention, the management data may be at least one of a management method according to pressure sore conditions, lesion dressing formulations, professional medical institution data, management product instructions, management product prices, and management product usage.

According to another feature of the present invention, the predictive model may include a plurality of models configured to predict the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, whether granulation tissue is present, and whether epithelialization is present, respectively. .

According to another feature of the present invention, the characteristics of the pressure ulcer may include the location of the lesion, and the determining of the information on the pressure ulcer may further include determining whether or not to change the position of the subject based on the location of the lesion. there is.

According to another feature of the present invention, the method may further include, after the step of determining whether or not to change the position, providing a position change notification based on a predetermined position change period.

According to another feature of the present invention, the method comprises the steps of receiving meal diary data of an individual, and determining nutritional deficiency or excess intake of nutrients of the individual based on predetermined nutrient data and meal diary data according to previously received food. It may further include steps to do.

In order to solve the above problems, a user device according to another embodiment of the present invention is provided. The user device may include a communication unit for receiving information on pressure sores; and a processor connected to communicate with the communication unit, wherein the processor may be configured to determine entity management data based on the received information on pressure sores, and to share the entity management data with other user devices through the communication unit.

In order to solve the above problems, a device for providing information on pressure sores according to another embodiment of the present invention is provided. The device for providing information includes a communication unit configured to receive a medical image including a lesion of an object, and a processor connected to communicate with the communication unit. At this time, the processor is configured to determine the characteristics of the pressure ulcer of the lesion using a prediction model configured to predict the characteristics of the pressure ulcer using the medical image as an input, and to determine information about the pressure ulcer of the individual based on the characteristics of the pressure ulcer, The characteristic is at least one of the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, presence of granulation tissue, and presence or absence of epithelialization.

According to a feature of the present invention, the communication unit may be further configured to receive entity data, and the processor may be further configured to determine information about the pressure sore based on the characteristics of the pressure sore and the entity data.

According to another feature of the present invention, the processor may be further configured to calculate a lesion severity score, which is defined as a degree of progression of the pressure ulcer, based on the characteristics of the pressure ulcer, and to determine information related to the prognosis of the individual based on the lesion severity score.

According to another feature of the present invention, the communication unit is further configured to receive location data of the object, and the processor, when the lesion severity score is equal to or greater than a predetermined level, based on the previously received professional medical institution data and location data, It may be further configured to determine a nearby professional medical institution.

According to another feature of the present invention, the processor may be further configured to determine a degree of improvement based on previously received comparative pressure sore characteristics and pressure sore characteristics.

According to another feature of the present invention, the processor may be further configured to determine pressure sore management data corresponding to characteristics of the pressure sore, based on previously received pressure sore management data.

According to another feature of the present invention, the pressure sore characteristics may include a location of the lesion, and the processor may be further configured to determine whether or not to change the position of the subject based on the location of the lesion.

According to another feature of the invention, the processor may be further configured to provide a position change notification based on a predetermined position change period.

According to another feature of the present invention, the communication unit is further configured to receive the individual's meal diary data, and the processor, based on the predetermined nutrient data and the meal diary data according to the previously received food, the individual's insufficient or excessive intake of nutrients. It may be further configured to determine nutrients.

Other embodiment specifics are included in the detailed description and drawings.

The present invention may provide an information providing system for pressure ulcers configured to continuously evaluate various clinical characteristics of pressure ulcer lesions with respect to medical images of lesions based on an artificial neural network algorithm.

More specifically, the present invention provides a system for providing information on pressure ulcers based on an artificial neural network, so that real-time evaluation of lesions is possible even without a user residing there, and information collected through an additional questionnaire is additionally applied to treat more severe pressure ulcers. It has an effect that can be predicted quickly.

Moreover, according to the present invention, when an abnormality with respect to a lesion is detected, it is possible to provide a linked medical service, such as providing feedback to a user device or guiding a nearby medical facility, thereby advancing the timing of medical treatment.

In addition, the present invention can provide guidelines for patient-specific measures, determine the degree of improvement of pressure ulcer lesions over time, and recommend appropriate pressure ulcer management/prevention methods, thereby providing ease of self-management for pressure ulcers. there is.

That is, the present invention can provide a patient-specific prevention and management solution, which can contribute to reducing the incidence of pressure ulcers by preventing pressure ulcers, reducing the morbidity of severe pressure ulcers through pressure ulcer condition monitoring, and further reducing medical expenses for the elderly through prevention and management can

Effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a system for providing information on pressure ulcers based on a device for providing information on pressure ulcers according to an embodiment of the present invention. It is illustrated by way of example.

FIG. 2A illustratively illustrates the configuration of a device for providing information on pressure sores according to an embodiment of the present invention.

FIG. 2B illustratively illustrates the configuration of a user device configured to receive information on pressure ulcers from a device for providing information on pressure ulcers according to an embodiment of the present invention.

FIG. 3 illustratively illustrates a procedure of a method for providing information on pressure sores according to an embodiment of the present invention.

4A to 4F exemplarily illustrate procedures for providing information on various pressure sores in the method for providing information on pressure sores according to an embodiment of the present invention.

5A and 5B illustratively illustrate a procedure for providing information on posture change in the method for providing information on pressure sores according to an embodiment of the present invention.

6A to 6B exemplarily illustrate a procedure for providing nutrient information in a method for providing information on pressure sores according to an embodiment of the present invention.

7 illustrates evaluation results of predictive models used in various embodiments of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various forms different from each other, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. In connection with the description of the drawings, like reference numerals may be used for like elements.

In this document, expressions such as "has," "may have," "includes," or "may include" indicate the existence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

In this document, expressions such as “A or B,” “at least one of A and/and B,” or “one or more of A or/and B” may include all possible combinations of the items listed together. . For example, “A or B,” “at least one of A and B,” or “at least one of A or B” (1) includes at least one A, (2) includes at least one B, Or (3) may refer to all cases including at least one A and at least one B.

Expressions such as “first,” “second,” “first,” or “second,” used in this document may modify various elements, regardless of order and/or importance, and refer to one element as It is used only to distinguish it from other components and does not limit the corresponding components. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, without departing from the scope of rights described in this document, a first element may be named a second element, and similarly, the second element may also be renamed to the first element.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or connected through another component (eg, a third component). On the other hand, when an element (eg, a first element) is referred to as being “directly connected” or “directly connected” to another element (eg, a second element), the element and the above It may be understood that other components (eg, third components) do not exist between the other components.

As used in this document, the expression "configured to" means "suitable for," "having the capacity to," depending on the circumstances. ," "designed to," "adapted to," "made to," or "capable of." The term "configured (or set) to" may not necessarily mean only "specifically designed to" hardware. Instead, in some contexts, the expression "a device configured to" may mean that the device "is capable of" in conjunction with other devices or components. For example, the phrase "a processor configured (or configured) to perform A, B, and C" may include a dedicated processor (eg, an embedded processor) to perform those operations, or by executing one or more software programs stored on a memory device. , may mean a general-purpose processor (eg, CPU or application processor) capable of performing corresponding operations.

Terms used in this document are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art described in this document. Among the terms used in this document, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in this document, an ideal or excessively formal meaning. not be interpreted as In some cases, even terms defined in this document cannot be interpreted to exclude the embodiments of this document.

Each feature of the various embodiments of the present invention can be partially or entirely combined or combined with each other, and as those skilled in the art can fully understand, various interlocking and driving operations are possible, and each embodiment can be implemented independently of each other. It may be possible to implement together in an association relationship.

For clarity of interpretation of this specification, terms used in this specification will be defined below.

As used herein, the term “lesion” may refer to an affected area where pressure sores have progressed. However, it is not limited thereto. For example, a lesion is a site where a surgical operation has been performed, and may mean a site where a lesion is excised or a treatment is performed.

As used herein, the term "subject" may mean any subject whose lesion is to be monitored. For example, the subject may be a subject with advanced pressure sores. In this case, the subject disclosed in this specification may be any mammal except for humans, but is not limited thereto.

As used herein, the term "medical image" refers to a digital image of a lesion. Preferably, the medical image may be an RGB color image, but is not limited thereto.

Meanwhile, the medical image may be a video consisting of a plurality of frames. For example, in a medical image composed of a plurality of frames, according to the method for providing information on pressure ulcers according to an embodiment of the present invention, characteristics of pressure ulcers may be predicted for each frame of the video. That is, real-time evaluation of a lesion may be possible simultaneously with receiving a medical image from a camera.

According to a feature of the present invention, the medical image may be a 2D image or a 3D image.

As used herein, the term “prediction model” may be a model configured to output pressure ulcer characteristics by taking a medical image of a pressure ulcer lesion as an input.

More specifically, the predictive model may be configured to predict at least one characteristic of pressure sores from among the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, presence of granulation tissue, and presence of epithelialization, using a medical image as an input. there is.

According to a feature of the present invention, the predictive model is configured to predict the characteristics of pressure ulcers, such as the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, whether granulation tissue is present, and whether epithelialization is present, using a medical image as an input. There may be a plurality of predictive models.

Meanwhile, in various embodiments of the present invention, the predictive model may have a network structure of Mask R-CNN.

Specifically, the predictive model may receive each pixel of the medical image as an input and generate a region of interest (ROI) with a high probability of having a pressure sore. Then, it can be learned to predict pressure ulcer characteristics such as precise location, shape, and stage of the lesion by predicting and segmenting the pressure ulcer stage for each pixel of the ROI.

More specifically, the predictive model is a Faster R-CNN that extracts a Region of Interest (RoI) from a Region Proposal Network (RPN), and class of objects (especially a classification branch that predicts a pressure sore characteristic), a bbox regression branch that performs a bbox regression, and, in parallel, a mask branch that predicts a segmentation mask. ) can be made.

Meanwhile, the network of predictive models used in various embodiments of the present invention is not limited thereto, and Inception-v3, Resnet50, Resnet-v2, Resnet101, or VGG net, R, DenseNet, and FCN having an encoder-decoder structure, It may be based on at least one algorithm selected from a deep neural network (DNN) such as SegNet, DeconvNet, DeepLAB V3+, and U-net, SqueezeNet, Alexnet, ResNet18, MobileNet-v2, and GoogLeNet. Furthermore, the prediction models may be ensemble models based on at least two algorithm models among the aforementioned algorithms.

Optionally, it is possible to provide a management method suitable for the condition of the patient's pressure ulcer by matching a management algorithm classified in advance according to the pressure ulcer characteristics of the pressure ulcer stage and shape information identified through the predictive model.

Hereinafter, a pressure ulcer information providing system based on a device for providing information on pressure ulcers according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2A to 2B.

FIG. 1 exemplarily illustrates a system for providing information on pressure ulcers based on a device for providing information on pressure ulcers according to an embodiment of the present invention. FIG. 2A illustratively illustrates the configuration of a device for providing information on pressure sores according to an embodiment of the present invention. FIG. 2B illustratively illustrates the configuration of a user device configured to receive information on pressure ulcers from a device for providing information on pressure ulcers according to an embodiment of the present invention.

First, referring to FIG. 1 , a pressure ulcer information providing system 1000 may be a system configured to provide lesion-related information based on a medical image of an object. At this time, the system for providing information on pressure ulcers (1000) includes a device for providing information on pressure ulcers (100) configured to predict characteristics of pressure ulcers based on medical images and determine whether or not there is an abnormality in the lesion, and provide information on pressure ulcers. It is composed of a first user device 200 receiving information about pressure sores, an external server 300 providing various information, and a second user device 2002 sharing information about pressure sores with the first user device 200. can

First, the device for providing information on pressure sores 100 is a general-purpose computer that performs various calculations to diagnose whether or not a lesion is abnormal based on a medical image of an object provided from the first user device 200 or an external server 300 , laptops, and/or data servers, and the like. In this case, the first user device 200 may be a device for accessing a web server providing a web page or a mobile web server providing a mobile web site, but is not limited thereto.

More specifically, the device 100 for providing information on pressure ulcers receives a medical image from the first user device 200 or an external server 300, and provides information related to whether or not a pressure sore lesion is abnormal from the received medical image. can do. In this case, the device 100 for providing information on pressure ulcers may detect an abnormality after detecting a change in blood flow in the medical image using a predictive model.

The device 100 for providing information on pressure sores may provide data associated with an abnormality of a lesion of an object to the first user device 200 .

In this way, data provided from the device 100 for providing information on pressure ulcers may be provided as a web page through a web browser installed in the first user device 200, or may be provided in the form of an application or program. In various embodiments, such data may be provided in a form included in the platform in a client-server environment of the external server 300 .

Next, the first user device 200 is an electronic device that provides a user interface for requesting provision of information on the abnormalities of pressure sore lesions of an individual and displaying evaluation result data, such as a smartphone or a tablet PC (Personal Computer) , At least one of a laptop computer and/or a PC may be included.

The first user device 200 may receive an evaluation result on a pressure sore lesion of an individual from the device 100 for providing information on pressure sores, and display the received results through a display unit. In this case, when an abnormality is detected in the lesion of the object by the device 100 for providing information on pressure sores, the display unit of the first user device 200 may further output a notification. Accordingly, the user can more quickly perform an appropriate treatment for the object.

Meanwhile, the evaluation result may include not only pressure sore characteristics of the lesion predicted by the predictive models, but also the subject's posture, the subject's nutritional status, and the like.

Meanwhile, the first user device 200 may be configured to generate entity management data for each entity based on information on pressure ulcers obtained from the device 100 for providing information on pressure ulcers.

Object management data can be shared with the second user device 2002 through a community of pre-built external servers 300 . Through this, management for each entity may be facilitated.

In particular, the user can self-check the management execution status based on past records, and can create object management data by tracking the change process of the patient's condition. Object management data can be shared with other users according to the user's intention, and the user can receive feedback on the pressure ulcer management status from medical staff when visiting a medical institution in the future.

Optionally, the external server 300 can be a host server. For example, the external server 300, as a host server, may separately provide a backend API server that connects the web server and the predictive model to perform data identification and pre-processing. Furthermore, the external server 300 may select guidelines for patient-customized measures, and may process requests and responses. It can exist in various structures depending on whether a user uses a web/application or the situation of each server.

Next, with reference to FIG. 2A, components of the device 100 for providing information on pressure sores according to the present invention will be described in detail.

Referring to FIG. 2A , a device 100 for providing information on pressure sores includes a storage unit 110 , a communication unit 120 and a processor 130 .

First, the storage unit 110 may store various data generated while diagnosing whether or not a lesion of an individual is abnormal. For example, the storage unit 110 may be configured to store a medical image received through the communication unit 120 to be described later and various products of a prediction process of a predictive model. In various embodiments, the storage unit 110 is a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg SD or XD memory, etc.), RAM, SRAM, ROM, EEPROM, PROM, magnetic memory , a magnetic disk, and an optical disk may include at least one type of storage medium.

The communication unit 120 connects the device 100 for providing information on pressure sores to communicate with an external device. The communication unit 120 is connected to the first user device 200 and the external server 300 using wired/wireless communication to transmit/receive various data. Specifically, the communication unit 120 may receive a medical image of a pressure sore lesion of an individual from the first user device 200 or the external server 300 . For example, the communication unit 120 may receive an RGB image of a lesion from the first user device 200 or the external server 300 . Furthermore, the communication unit 120 may transmit the evaluation result to the first user device 200 .

Furthermore, the size of the lesion, the depth of the lesion, the lesion boundary data, the degree of erosion of the lesion, the type of exudate, the skin color around the lesion, the amount of exudate, and peripheral data input from the user device 200 through the communication unit 120 It may be possible to receive at least one entity data regarding tissue edema or not.

At this time, in the case of the skin color around the lesion, it may be determined through an algorithm that calculates a pixel value, and may be received by the communication unit 120 through the external server 300 .

The processor 130 is operatively connected to the storage unit 110 and the communication unit 120, and can perform various commands for analyzing a medical image of an object.

Specifically, the processor 130 may be configured to classify pressure sore characteristics of the lesion based on the medical image received through the communication unit 120 and determine whether or not there is an abnormality.

In this case, the processor 130 may be based on a predictive model configured to classify the pressure sore characteristics based on the medical image and determine information about the pressure sore lesion.

Meanwhile, the device 100 for providing information on pressure sores is not limited to being designed in terms of hardware. For example, the processor 130 of the device 100 for providing information on pressure ulcers may be implemented as software. Accordingly, the evaluation result for the lesion may be displayed through the display unit of the external server 300 to which the software is connected.

Meanwhile, referring to FIG. 2B , the first user device 200 includes a communication unit 210 , a display unit 220 , a storage unit 230 and a processor 240 .

The communication unit 210 may be configured to allow the first user device 200 to communicate with an external device. The communication unit 210 may be connected to the device 100 for providing information on pressure ulcers using wired/wireless communication to transmit various data related to pressure ulcer lesions. Specifically, the communication unit 210 transmits the stage of the lesion predicted by the predictive models, the location of the lesion, the type of necrotic tissue, the amount of the necrotic tissue, the presence of granulation tissue, and epithelialization, from the device 100 for providing information on pressure ulcers. It is possible to receive information such as whether or not, further improvement, treatment prognosis, appropriate treatment method for lesions, and nearby medical institutions.

The display unit 220 may display various interface screens for displaying the evaluation result of the pressure sore state of the subject. Furthermore, the display unit 220 may be further configured to output a notification upon detecting an abnormality in the lesion.

For example, the display unit 220 may visually output characteristics of the lesion and further information on the pressure sore, or may output an alarm sound in a specific situation. Accordingly, it may be possible for the user to quickly treat the pressure sore object.

In various embodiments, the display unit 220 may include a touch screen, and for example, a touch using an electronic pen or a part of the user's body, a gesture, a proximity, a drag, or a swipe A swipe or hovering input may be received.

The storage unit 230 may store various data used to provide a user interface for displaying result data. In various embodiments, the storage unit 230 may be a flash memory type, a hard disk type, a multimedia card micro type, or a card type memory (for example, SD or XD memory, etc.), RAM (Random Access Memory, RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) , a magnetic memory, a magnetic disk, and an optical disk may include at least one type of storage medium.

The processor 240 is operably connected to the communication unit 210, the display unit 220, and the storage unit 230, and can execute various commands for providing a user interface for displaying evaluation result data.

Hereinafter, a method for providing information on pressure sores according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4a to 4f.

FIG. 3 illustratively illustrates a procedure of a method for providing information on pressure sores according to an embodiment of the present invention. 4A to 4F exemplarily illustrate procedures for providing information on various pressure sores in the method for providing information on pressure sores according to an embodiment of the present invention.

At this time, for convenience of description, the above reference numerals in FIG. 1 are used.

First, referring to FIG. 3 , a procedure for providing information on pressure sores according to an embodiment of the present invention is as follows. First, a medical image of a pressure sore lesion is received (S310). Next, pressure sore characteristics of the lesion are determined using the predictive model (S320), and pressure sore information is determined (S330). Optionally, a step of receiving entity data (S3102) is performed before the step of determining information on pressure sores (S330).

According to a feature of the present invention, in the step of receiving a medical image of a pressure sore lesion, an RGB image of a pressure sore lesion may be received from the user device 200 or 2002 .

Then, in the step of determining the characteristics of the pressure ulcer (S320), the characteristic of at least one of the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, whether there is granulation tissue, and whether it is epithelialized is determined by the predictive model. can

According to a feature of the present invention, in the step of determining the pressure sore characteristics (S320), a plurality of models configured to output respective pressure sore characteristics using a medical image as an input are selected, and then the pressure sore characteristics may be output by each model. there is.

Next, information on pressure sores may be determined (S330).

According to a feature of the present invention, in the step of determining information on pressure ulcers (S330), information on pressure ulcers may be determined based on the individual data received from the step of receiving characteristics of the pressure ulcer and entity data (S3102).

In this case, the entity data may be at least one of the size of the lesion, the depth of the lesion, data on the boundary of the lesion, the degree of erosion of the lesion, the type of exudate, the skin color around the lesion, the amount of the exudate, and whether or not peripheral tissue edema exists.

For example, referring to FIG. 4A , in the step of determining pressure sore characteristics (S320), a lesion stage prediction model 320a, a lesion location prediction model 320b, a necrotic tissue type prediction model 320c, and necrosis A medical image 312 is input to a prediction model 320 composed of a plurality of models of a tissue quantity prediction model 320d, a granulation tissue prediction model 320e, and an epithelialization prediction model 320f.

As a result, the pressure sore characteristic 332 of the output value corresponding to the selected predictive model is determined.

Then, in step S330 of determining information on the pressure sore, the object data 412 input from the first user device 200 (or received from the external server 300) together with the pressure sore characteristics 332 Based on the information 342 on various pressure sores, it can be generated.

For example, referring to FIGS. 3 and 4C , in step S330 in which information on pressure ulcers is determined, information related to the prognosis of pressure ulcers and/or information related to pressure ulcer management may be generated.

More specifically, in the step of determining information on pressure ulcers (S330), a lesion severity score 352 defined by the degree of progression of pressure ulcers is generated based on the pressure sore characteristics 332 and individual data 412, based on which Pressure sore management data 3422 can be determined.

At this time, the lesion severity score may be based on at least one of the Bates-Jensen wound assessment tool (BWAT) score, the DESIGN-R ^TM , the Pressure Ulcer Scale for Healing (PUSH) score, and the Pressure Sore Status Tool (PSST) score. It is not limited.

Meanwhile, the determined pressure sore management data may be at least one of a management method according to a pressure sore state, a lesion dressing formulation, professional medical institution data, a management product description, a management product price, and a management product usage.

Optionally, in the step of determining information on pressure ulcers (S330), after receiving pressure ulcer management data determined in advance according to the lesion severity score from the external server 300, pressure ulcers are determined based on the previously received pressure ulcer management data and the lesion severity score. Management data can be determined.

That is, patient-customized management feedback can be provided by using the pressure ulcer lesion analysis information that can be grasped by AI technology and the information input from the user.

According to another feature of the present invention, in the step of determining information on pressure ulcers (S330), information on nearby professional medical institutions may be determined.

For example, referring to FIGS. 3 and 4C together, in step S330 in which information on pressure sores is determined, user location data 512 may be selectively additionally received. In this case, when the calculated lesion severity score 352 is equal to or greater than a predetermined level, a nearby professional medical institution may be determined based on previously received professional medical institution data and user location data.

Referring further to FIG. 4D , in step S330 of determining pressure ulcer information, a nearby specialized medical institution and information thereon may be output through the display unit 220 of the first user device 200. In this case, the provided data on specialized medical institutions in the vicinity may include a company name, address, contact information, distance, map, and the like of institutions capable of specialized treatment for pressure ulcers. However, it is not limited thereto. Furthermore, the user may directly reserve a visit to a nearby specialized medical institution through the visit reservation field 222 .

That is, by providing information on a nearby professional medical institution, it may be recommended to visit a professional medical institution for treatment in the case of a severe pressure ulcer belonging to stages 3 and 4 or having a very poor prognosis. Furthermore, a guidance map of a medical institution specializing in pressure ulcers based on a user's residence can be provided, and a direct connection service with a medical institution such as reservation can be provided.

Accordingly, the present invention enables a user to quickly determine a situation requiring active medical intervention, thereby preventing a situation in which pressure ulcers deteriorate due to delay in treatment.

According to another feature of the present invention, in step S330 in which information on pressure ulcers is determined, information on degree of improvement may be determined.

For example, referring to FIGS. 3 and 4E together, in step S330 of determining information on pressure sores, the degree of improvement ( 3426) can be determined.

In this case, the comparison pressure sore characteristics 612 is a state of the individual before the determination of the pressure sore characteristics 332 is performed, and may be, for example, the pressure sore characteristics determined for the individual pressure sore lesion before treatment begins.

Referring further to FIG. 4F , the degree of improvement determined through the step of determining information on pressure sores (S330) and the information thereon may be output through the display unit 220 of the first user device 200.

More specifically, the lesion severity score (80 points) and pressure sore stage (stage 3) determined on August 13, 2021 and the lesion severity score (65 points) and pressure sore stage (stage 2) further determined on September 22, 2021 are compared, and the degree of improvement may be determined as 'good' according to the severity score and severity being lowered. At this time, optionally, information on usable medical supplies, product names, and pressure sore management data of an application method may be provided together in the second initial pressure sore stage.

That is, it is possible to help users perform self-management in a home environment, focusing on mild pressure ulcers belonging to the initial stages 1 and 2 or having a low severity. Accordingly, the guideline according to the patient's condition may be different each time. The pressure sore management data includes pressure sore condition information identified by AI technology and information determined based on entity data input from the user. For example, after listing in order of suitability, a customized list may be included along with descriptions on characteristics and strengths and weaknesses, such as use, price, and usage of products.

Optionally, a manual for self-management and prevention of pressure ulcers prepared based on actual clinical experiences of clinical nurses specializing in pressure ulcers may be provided as entity data. Through this, the user may supplement insufficient medical knowledge.

The system for providing information on pressure ulcers in real time based on the method for providing information on pressure ulcers according to the above various embodiments can overcome the limitations of conventional information provision systems on pressure ulcers. In particular, the system can overcome the limitations of conventional information providing systems on pressure ulcers in that it can evaluate lesions in real time even without a user's residence and can predict the characteristics of pressure ulcers with high accuracy.

Moreover, the system can advance the time of medical treatment by providing a real-time alarm to a user device when a change in a lesion is detected, and can contribute to early treatment and good treatment prognosis.

Meanwhile, the procedure for providing information on pressure sores is not limited to the above-described characteristics.

Hereinafter, a method of providing information on pressure sores according to various embodiments of the present disclosure will be described with reference to FIGS. 5A and 5B and 6A and 6B.

In this case, reference numerals in FIG. 1 are used for convenience of description.

According to another embodiment of the present invention, after the step of receiving the medical image of the pressure sore lesion, the characteristics of the pressure sore at the location of the pressure sore may be determined, and whether or not to change the posture may be determined.

Referring to FIG. 5A , a received medical image 312 is input to a lesion location prediction model 320b. As a result, the pressure sore characteristics of the lesion location 334 are determined. In this case, a comparative lesion position 614 based on a medical image (not shown) received earlier than the medical image 312 may be selectively received. In this case, the comparison lesion location 614 may be received through the first user device 200 or obtained from object management data pre-stored in the external server 300 . That is, a comparison of the lesion location 334 and the comparative lesion location 614 is performed, and whether or not to change the posture can be determined.

Optionally, a position change notification may be provided based on a predetermined position change period after determining whether or not to change the position.

Referring to FIG. 5B together, information on whether or not a posture has been changed can be output through the display unit 220 of the first user device 200 .

More specifically, a notification for changing the posture of the object may be visually provided through the screen of the display unit 220 or provided with sound based on a predetermined posture change cycle.

That is, through this, the occurrence of pressure sores can be prevented or the degree of pressure sores can be improved.

In particular, it is basic to periodically change the patient's position every 2 hours to prevent pressure sores, but there may be restrictions in the care environment of a home or nursing home. can recognize In other words, it is possible to select an appropriate candidate group for each patient's posture and cycle, and additionally secure data on the activity and bedtime of the user, so that it is easy to set the individual customized posture change cycle and time zone.

According to another embodiment of the present invention, nutritional deficiency or excessive intake of nutrients may be determined based on individual meal diary data and previously received nutrient data.

Referring to FIG. 6A , meal diary data 616 is input from the first user device 200 or received from the external server 300 . Then, based on the previously-determined nutrient data 6162 and meal diary data 616 according to the previously received food, the individual's nutritional deficiency or excess intake 3429 is determined.

Referring to FIG. 6B together, information on insufficient nutrients or excessive intake of nutrients may be output through the display unit 220 of the first user device 200 .

More specifically, with respect to the meal diary and the image input from the first user device 200 , ratios of carbohydrates, proteins, and fats are determined. Then, based on the nutrient data, information such as additional recommended nutrients and supplements is determined and output together.

That is, since the speed of improvement of pressure ulcer lesions is influenced by the patient's general condition, long-term nutritional management may be possible through the analysis of the meal diary. In particular, a health supplement based on a patient's condition or preference may be determined and recommended.

Hereinafter, evaluation results of predictive models used in various embodiments of the present invention will be described with reference to FIG. 7 .

7 illustrates evaluation results of predictive models used in various embodiments of the present invention.

In this case, the predictive model is a network-based model of inception v3, and may be a model learned by using an error function of cross entropy loss as an adam optimizer.

However, it is not limited thereto.

More specifically, in the first stage evaluation, the predictive model used 68 medical image data for learning, and as a result of classification of pressure ulcer characteristics, Precision was 75%, Recall was 33%, and F1 score was 45. appear. As the 2nd, 3rd, and 4th stages of learning and evaluation are repeated, the predictive model shows better performance. In particular, the accuracy of the 4-step evaluation based on 245 learning data is 100%, the recall is 95%, the F1 score is 97%, and the overall accuracy of the prediction model is 80%.

Thus, the predictive model according to various embodiments of the present invention can predict the characteristics of pressure ulcers with high accuracy, and the characteristics of pressure ulcers and individual data input from the user can be used to determine information on pressure ulcers.

Therefore, the present invention provides an information providing system for pressure ulcers based on an artificial neural network, so that real-time evaluation of lesions is possible even without a user residing there, and information collected through an additional questionnaire is additionally applied to treat more severe pressure ulcers. It has an effect that can be predicted quickly.

Moreover, according to the present invention, when an abnormality with respect to a lesion is detected, it is possible to provide a linked medical service, such as providing feedback to a user device or guiding a nearby medical facility, thereby advancing the timing of medical treatment.

In addition, the present invention can provide guidelines for patient-specific measures, determine the degree of improvement of pressure ulcer lesions over time, and recommend appropriate pressure ulcer management/prevention methods, thereby providing ease of self-management for pressure ulcers. there is.

That is, the present invention can provide a patient-specific prevention and management solution, which can contribute to reducing the incidence of pressure ulcers by preventing pressure ulcers, reducing the morbidity of severe pressure ulcers through pressure ulcer condition monitoring, and further reducing medical expenses for the elderly through prevention and management can

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims (22)

1. As a method for providing information on pressure sores implemented by a processor,

   Receiving a medical image including a lesion of the subject;

   determining pressure sore characteristics of the lesion by using a predictive model configured to output pressure sore characteristics by using the medical image as an input; and

   Determining information about the pressure sores of the individual based on the characteristics of the pressure sores,

   The pressure ulcer characteristic is at least one of the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, whether granulation tissue is present, and whether epithelialization is present.
2. According to claim 1,

   After the step of determining the pressure sore characteristics, further comprising the step of receiving entity data,

   The step of determining the information on the pressure sores,

   A method of providing information on pressure ulcers, comprising determining information on pressure ulcers based on the characteristics of pressure ulcers and the entity data.
3. According to claim 2,

   The entity data is at least one of the size of the lesion, the depth of the lesion, the lesion boundary data, the degree of erosion of the lesion, the type of exudate, the skin color around the lesion, the amount of exudate, and peripheral tissue edema Provide information on pressure sores method.
4. According to claim 1,

   The step of determining the information on the pressure sores,

   Calculating a lesion severity score, which is defined as the degree of progression of the pressure ulcer, based on the characteristics of the pressure ulcer; and

   Further comprising determining information related to the prognosis of the subject based on the lesion severity score.
5. According to claim 4,

   further comprising receiving positional data of the object;

   After calculating the lesion severity score,

   If the lesion severity score is equal to or greater than a predetermined level, determining a nearby professional medical institution based on previously received professional medical institution data and the location data.
6. According to claim 1,

   The step of determining the information on the pressure sores,

   The method of providing information on pressure ulcers, further comprising determining a degree of improvement based on previously received comparison pressuresore characteristics and the pressuresore characteristics.
7. According to claim 1,

   The step of determining the information on the pressure sores,

   The method of providing information on pressure sores, further comprising determining pressure sore management data corresponding to the characteristics of the pressure sores, based on the previously received pressure sore management data.
8. According to claim 7,

   The pressure sore management data is

   A method of providing information on pressure ulcers, which is at least one of a management method according to a pressure sore condition, a lesion dressing formulation, professional medical institution data, a management product manual, a management product price, and a management product usage method.
9. According to claim 1,

   The predictive model,

   A plurality of models configured to predict the stage of the lesion, the location of the lesion, the type of the necrotic tissue, the amount of the necrotic tissue, whether the granulation tissue is present, and whether the epithelialization is present, respectively.
10. According to claim 1,

    The pressure sore characteristics include the location of the lesion,

    The step of determining the information on the pressure sores,

    The method of providing information on pressure sores, further comprising determining whether or not to change the posture of the individual based on the location of the lesion.
11. According to claim 10,

    After the step of determining whether to change the position,

    The method of providing information on pressure sores, further comprising providing the position change notification based on a predetermined position change period.
12. According to claim 1,

    receiving the subject's meal diary data; and

    The method of providing information on pressure sores, further comprising determining nutritional deficiency or excessive intake of nutrients of the individual based on predetermined nutrient data according to previously received food and the meal diary data.
13. A communication unit for receiving information on the pressure sore according to any one of claims 1 to 12;

    A processor coupled to communicate with the communication unit;

    The processor determines entity management data based on the received information on the pressure sore;

    A user device configured to share the object management data with another user device through the communication unit.
14. A communication unit configured to receive a medical image including a lesion of an object, and

    A processor coupled to communicate with the communication unit;

    The processor uses the medical image as an input and uses a predictive model configured to predict the pressure sore characteristics to determine the pressure sore characteristics of the lesion;

    Is configured to determine information on the pressure sores of the individual based on the characteristics of the pressure sores,

    The pressure ulcer characteristic is at least one of the stage of the lesion, the location of the lesion, the type of necrotic tissue, the amount of necrotic tissue, whether granulation tissue is present, and whether epithelialization is present.
15. According to claim 14,

    The communication unit is further configured to receive entity data,

    the processor,

    A device for providing information on pressure ulcers, further configured to determine information on pressure ulcers based on characteristics of the pressure ulcer and the entity data.
16. According to claim 14,

    the processor,

    Calculating a lesion severity score, which is defined as the degree of progression of the pressure ulcer, based on the characteristics of the pressure ulcer;

    A device for providing information on pressure ulcers, further configured to determine information associated with a prognosis of the individual based on the lesion severity score.
17. According to claim 16,

    The communication unit is further configured to receive location data of the object,

    the processor,

    The device for providing information on pressure ulcers, further configured to determine a nearby specialized medical institution based on previously received specialized medical institution data and the location data when the lesion severity score is equal to or greater than a predetermined level.
18. According to claim 14,

    the processor,

    A device for providing information on pressure ulcers, further configured to determine a degree of improvement based on the previously received comparative pressure sore characteristics and the pressure sore characteristics.
19. According to claim 14,

    the processor,

    The device for providing information on pressure sores, further configured to determine pressure sore management data corresponding to the pressure sore characteristics, based on the previously received pressure sore management data.
20. According to claim 14,

    The pressure sore characteristics include the location of the lesion,

    the processor,

    A device for providing information on pressure sores, further configured to determine whether to change the posture of the subject based on the location of the lesion.
21. According to claim 20,

    the processor,

    The device for providing information on pressure sores, further configured to provide the position change notification based on a predetermined position change period.
22. According to claim 14,

    The communication unit is further configured to receive meal diary data of the object,

    the processor,

    The device for providing information on pressure sores, further configured to determine nutritional deficiency or excessive intake of nutrients of the individual based on predetermined nutrient data according to previously received food and the meal diary data.

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