Medical information processing device, medical information processing method, and program

Abstract

A health information processing device 1X mainly has a summarization degree setting means 16X and a summary generation means 17X. The summarization degree setting means 16X sets a degree of summarization of health records for each of a plurality of treatment periods on the basis of relationships of injuries and illnesses of a subject across the plurality of treatment periods. The summary generation means 17X generates a summary of the health records in a period of interest that includes the plurality of treatment periods on the basis of the health records and the degree of summarization.

Description

Medical information processing device, medical information processing method, and storage medium

[0001] The present disclosure relates to the technical fields of a medical information processing device, a medical information processing method, and a storage medium that perform processing related to medical information.

[0002] Among the various tasks performed by medical professionals, the task of recording medical procedures performed on patients is essential for sharing patient information with related medical professionals and for demonstrating that appropriate medical procedures have been performed objectively. Meanwhile, tasks related to medical records place a heavy burden on medical professionals. Patent Document 1 discloses a technology for generating summaries from medical records prepared by medical professionals as a technology for assisting with tasks related to medical records.

[0003] Japanese Patent Application Laid-Open No. 2020-38602

[0004] When generating a summary of medical records for a target period that includes multiple treatment periods, simply summarizing each medical record included in the target period using the same degree of compression may not result in a summary that accurately and concisely represents the condition of the target patient.

[0005] In view of the above-mentioned problems, one of the objectives of the present disclosure is to provide a medical information processing device, a medical information processing method, and a storage medium that are capable of suitably generating a summary of medical records for a target period.

[0006] One aspect of the medical information processing device is a medical information processing device having: a summarization level setting means for setting the degree of summarization of the medical records for each of multiple treatment periods based on the relationship between injuries and illnesses among multiple treatment periods of the subject; and a summary generation means for generating a summary of the medical records for a target period including the multiple treatment periods based on the medical records and the degree of summarization.

[0007] One aspect of the medical information processing method is a medical information processing method in which a computer sets the degree of summarization of the medical records for each of multiple treatment periods based on the relationship between injuries and illnesses of a subject between multiple treatment periods, and generates a summary of the medical records for a target period that includes the multiple treatment periods based on the medical records and the degree of summarization.

[0008] One aspect of the storage medium is a storage medium that stores a program that causes a computer to execute a process of setting the degree of summarization of medical records for each of multiple treatment periods based on the relationship between injuries and illnesses of a subject between multiple treatment periods, and generating a summary of the medical records for a target period that includes the multiple treatment periods based on the medical records and the degree of summarization.

[0009] According to the present disclosure, a summary of medical records for a target period can be preferably generated.

[0010] 1 shows a schematic configuration of a medical information processing system according to a first embodiment. FIG. 2 shows an example of the data structure of medical records in a medical record storage unit. FIG. 3 shows the hardware configuration of a medical information processing device. FIG. 4 shows an example of the functional block of a processor of a medical information processing device. FIG. 5 shows the relationship between the treatment periods of a target patient (treatment periods 1 to 3) and examples of set target periods (target periods α, target periods β). FIG. 6 shows an example of a flowchart executed by the medical information processing device according to the first embodiment. FIG. 7 shows a schematic configuration of a medical information processing system according to a second embodiment. FIG. 8 shows an example of the data structure of summary information in a summary information storage unit. FIG. 9 shows a schematic configuration of a medical information processing system according to a third embodiment. FIG. 10 is a block diagram of a medical information processing device according to a fourth embodiment. FIG. 11 shows an example of a flowchart executed by the medical information processing device according to the fourth embodiment.

[0011] Hereinafter, embodiments of a medical information processing device, a medical information processing method, and a storage medium will be described with reference to the drawings.

[0012] <First embodiment> (1) System configuration Fig. 1 shows a schematic configuration of a medical information processing system 100 according to the first embodiment. The medical information processing system 100 generates a summary of a patient's medical record for a specified period.

[0013] Hereinafter, "medical records" refers to the various records created during the course of medical treatment regarding a patient's condition (physical condition, medical symptoms, treatment applied, etc.), including medical records (charts), prescriptions, surgery records, nursing records, test findings, X-rays, referral letters, and summaries of the medical progress of discharged patients during their hospital stay. Hereinafter, unless otherwise specified, medical records refer to electronic data in which the above-mentioned records are electronically stored. Furthermore, "summary of medical records" includes at least a summary of the text contained in the medical records (summary text).

[0014] The medical information processing system 100 mainly includes a medical information processing device 1, an input device 2, an output device 3, and a storage device 4.

[0015] The medical information processing device 1 performs processing related to the generation of medical record summaries. The medical information processing device 1 communicates data with the input device 2, output device 3, and storage device 4 via a communication network or by direct wireless or wired communication. The medical information processing device 1 then identifies, for example, a patient whose medical record is to be summarized (also referred to as a "target patient") and a period whose medical record is to be summarized (also referred to as a "target period"), based on an input signal supplied from the input device 2. Here, the target period includes multiple treatment periods for injuries or illnesses suffered by the target patient. The medical information processing device 1 then generates a medical record summary (also referred to as a "second medical summary") for the target period based on the medical record summary for each treatment period (also referred to as a "first medical summary").

[0016] The medical information processing device 1 also generates an output signal and supplies the generated output signal to the output device 3. In this case, the output signal is, for example, display information (which may include audio information) for accepting input necessary for generating a second medical summary or input for correcting the generated second medical summary. The medical information processing device 1 may store information related to the generated second medical summary in the storage device 4 or transmit it to an external device (not shown). The generated second medical summary is used, for example, to create medical documents such as referral letters, medical certificates, discharge summaries, and other medical documents that require the inclusion of a summary of medical records by medical professionals.

[0017] The input device 2 is an interface that accepts manual input (external input) of information by a user. The input device 2 may be, for example, various user input interfaces such as a touch panel, buttons, a keyboard, a mouse, or a voice input device. The input device 2 supplies the generated input signal to the medical information processing device 1. The output device 3 outputs predetermined information based on the output signal supplied from the medical information processing device 1. The output device 3 is, for example, a display, projector, speaker, printer, etc.

[0018] The storage device 4 is a memory that stores various information necessary for processing executed by the medical information processing device 1. The storage device 4 may be an external storage device such as a hard disk connected to or built into the medical information processing device 1, or may be a storage medium such as a flash memory. The storage device 4 may also be a server device that performs data communication with the medical information processing device 1. The storage device 4 may also be composed of multiple devices. At least a portion of the information stored in the storage device 4 may be stored by the medical information processing device 1.

[0019] Functionally, the storage device 4 mainly includes a medical record storage unit 41 that stores the medical records of patients.

[0020] 2 shows an example of the data structure of medical records in the medical record storage unit 41. The medical record storage unit 41 stores, for example, medical records created for each medical treatment, linked to patient identification information (also referred to as "patient ID") for identifying the patient who received the treatment. In the example of FIG. 2, the medical record storage unit 41 stores medical records "R11" and "R12" of a patient identified by patient ID "PID1" linked to the patient ID "PID1," and stores medical records "R21" and "R22" of a patient identified by patient ID "PID2" linked to the patient ID "PID2."

[0021] Each medical record includes a medical record ID, which is identification information for the medical record, medical record date and time information indicating the date and time when the medical record was created (or the medical treatment was performed), injury or illness information indicating the injury or illness being treated, and medical record content indicating the content of the medical record related to the patient's condition (e.g., a chart).The medical information processing device 1 in the first embodiment then generates a first medical summary and a second medical summary that summarize the text indicated in the medical record content.

[0022] The data structure of each record in the medical record is not limited to that shown in FIG. 2 . For example, information (including text information) equivalent to injury or illness information may be incorporated into the medical record content. In this case, the injury or illness may be identified by text analysis of the medical record content. Furthermore, the medical record stored in the medical record storage unit 41 may be a single record that includes records for each treatment period of the same patient. In this case, the medical record date and time information may be information indicating the treatment period.

[0023] The configuration of the medical information processing system 100 shown in FIG. 1 is an example, and various modifications may be made to the configuration. For example, the input device 2 and the output device 3 may be configured as an integrated unit. In this case, the input device 2 and the output device 3 may be configured as a tablet terminal (including a smartphone) that is integrated with or separate from the medical information processing device 1. The medical information processing device 1 may also be configured as a plurality of devices. In this case, the plurality of devices that make up the medical information processing device 1 exchange information necessary to execute pre-assigned processing between these plurality of devices. In this case, the medical information processing device 1 functions as a system.

[0024] (2) Hardware Configuration Fig. 3 shows the hardware configuration of the medical information processing device 1. The medical information processing device 1 includes, as hardware, a processor 11, a memory 12, and an interface 13. The processor 11, the memory 12, and the interface 13 are connected via a data bus 10.

[0025] The processor 11 executes programs stored in the memory 12 to function as a controller (arithmetic unit) that performs overall control of the medical information processing device 1. The processor 11 is, for example, a processor such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or a TPU (Tensor Processing Unit). The processor 11 may be composed of multiple processors. The processor 11 is an example of a computer.

[0026] The memory 12 is composed of various types of volatile and non-volatile memory, such as RAM (Random Access Memory), ROM (Read Only Memory), and flash memory. The memory 12 also stores programs for executing processes performed by the medical information processing device 1. Note that part of the information stored in the memory 12 may be stored in one or more external storage devices capable of communicating with the medical information processing device 1, or may be stored in a storage medium that is detachable from the medical information processing device 1.

[0027] The interface 13 is an interface for electrically connecting the medical information processing device 1 to other devices. These interfaces may be wireless interfaces such as network adapters for wirelessly transmitting and receiving data to and from other devices, or may be hardware interfaces for connecting to other devices via cables or the like.

[0028] The hardware configuration of the medical information processing device 1 is not limited to the configuration shown in Fig. 3. For example, the medical information processing device 1 may include at least one of the input device 2 and the output device 3.

[0029] (3) Generation of Second Medical Summary Next, the process for generating the second medical summary executed by the medical information processing device 1 will be described. In summary, the medical information processing device 1 determines the degree of summarization (also referred to as the "summarization degree") of the medical records for each treatment period based on the relationship between injuries and illnesses during the treatment period, and generates a second medical summary for the target period using the first medical summary generated based on the determined summarization degree. In this way, the medical information processing device 1 generates a second medical summary that accurately summarizes the medical records for the target period. Hereinafter, the higher the summarization degree, the more concise the summarized text (i.e., the more compressed the text).

[0030] 4 shows an example of functional blocks of the processor 11 of the medical information processing device 1. Functionally, the processor 11 of the medical information processing device 1 includes a target medical record acquisition unit 15, a summarization level setting unit 16, a summary generation unit 17, and an output control unit 18. Note that, although the blocks where data is exchanged are connected by solid lines here, the combination of blocks where data is exchanged is not limited to this. The same applies to the other functional block diagrams described below.

[0031] The target medical record acquisition unit 15 acquires medical records corresponding to a specified target period and target patient (also referred to as "target medical records") from the medical record storage unit 41 via the interface 13. In this case, for example, the output control unit 18 accepts user input specifying the target period and target patient via the input device 2, and supplies an input signal generated by the input device 2 to the target medical record acquisition unit 15. The target medical record acquisition unit 15 extracts the corresponding target medical record from the medical record storage unit 41 based on the target period and target patient indicated by the input signal. In this case, the target medical record acquisition unit 15 extracts, as the target medical record, medical record date and time information indicating the date and time included in the target period and linked to the patient ID of the target patient from the medical record storage unit 41. The target medical record acquisition unit 15 supplies the target medical record to the summarization level setting unit 16 and the summary generation unit 17.

[0032] The summarization level setting unit 16 identifies the injury or illness of the target patient for each treatment period based on the target medical records supplied from the target medical record acquisition unit 15, and sets the summarization level of the first medical summary corresponding to each treatment period based on the determination result of the relationship between the identified injuries and illnesses.

[0033] In this case, the summarization level setting unit 16 first classifies the multiple chronologically-series target medical records supplied from the target medical record acquisition unit 15 into groups of chronologically-series medical records related to the same injury or illness.The summarization level setting unit 16 then identifies the period indicated by the medical record date and time for each group (group) of target medical records formed by the above classification as each treatment period for the target patient.Note that if medical record records are generated for each treatment period, the summarization level setting unit 16 identifies the treatment period based on the medical record date and time information in the medical records.

[0034] The summarization level setting unit 16 then regards the last treatment period in the target period (i.e., the most recent treatment period) as the treatment period used as the reference for determining the relationship (also referred to as the "reference treatment period"), and determines the degree of relationship (also referred to as the "degree of association") between the injury / illness in the most recent treatment period and the injury / illness in each treatment period. In this case, for example, information indicating the relationship between candidate injury / illness pairs for which the degree of association is to be determined and the degree of association to be set for each candidate is stored in the storage device 4, memory 12, etc., and the summarization level setting unit 16 determines the degree of association between the injury / illness in the reference treatment period and the injury / illness in each treatment period by referring to the information. Here, the degree of association corresponding to the reference treatment period is set to be the maximum value.

[0035] The summarization level setting unit 16 sets a higher summarization level for a treatment period with a lower relevance level. In this case, for example, information indicating the relationship between expected relevance level candidates and the summarization level to be set for each candidate is stored in the storage device 4, the memory 12, or the like, and the summarization level setting unit 16 determines the summarization level for each treatment period from the determined relevance level by referring to the information. Note that since the relevance level corresponding to the reference treatment period is the maximum value, the summarization level corresponding to the reference treatment period is the minimum value (i.e., a value indicating the lowest degree of summarization).

[0036] The method for setting the summarization level is not limited to the above example. For example, if information indicating the relationship between candidate pairs of injuries and illnesses for which the degree of association is to be determined and the summarization level to be set for each candidate is stored in the storage device 4, the memory 12, or the like, the summarization level setting unit 16 may refer to the information to directly determine the summarization level corresponding to an arbitrary treatment period from the injuries and illnesses in the latest treatment period and the injuries and illnesses in the arbitrary treatment period.

[0037] In another example, learned parameters of an inference model that has learned the relationship between pairs of injuries and illnesses and the summarization level to be set may be stored in the storage device 4, the memory 12, etc. In this case, the summarization level setting unit 16 inputs pairs of injuries and illnesses in the latest treatment period and injuries and illnesses in an arbitrary treatment period into an inference model configured based on the learned parameters, and obtains the summarization level output by the inference model as the summarization level corresponding to the arbitrary treatment period.

[0038] In yet another example, when the summarization level setting unit 16 detects a description in the target medical record that clearly states the relationship between an injury or illness between treatment periods in the determination of the degree of relevance, the summarization level setting unit 16 may set the above-mentioned degree of relevance based on the description. In this case, for example, when the summarization level setting unit 16 detects a description in the target medical record that clearly states that an injury or illness is related to a specific treatment period, the summarization level setting unit 16 sets the degree of relevance between the injury or illness between the treatment period in the target medical record containing the description and the specific treatment period to the maximum value.

[0039] The summary generation unit 17 generates a first medical summary for each treatment period based on the target medical record supplied from the target medical record acquisition unit 15 and the summarization level for each treatment period supplied from the summarization level setting unit 16. A method for generating a first medical summary based on the summarization level will be described later. The summary generation unit 17 then generates a second medical summary based on the first medical summary generated for each treatment period. In this case, for example, the summary generation unit 17 generates a second medical summary that indicates a sentence formed by connecting sentences indicated in the first medical summary in chronological order of the treatment periods. The summary generation unit 17 then supplies the generated second medical summary to the output control unit 18.

[0040] The output control unit 18 displays an input screen on the output device 3 for accepting input specifying the target period and target patient, and accepts user input specifying the target period and target patient on the input screen via the input device 2. The output control unit 18 then supplies the input signal specifying the target period and target patient entered via the input device 2 to the target medical record acquisition unit 15. The output control unit 18 also displays the second medical summary generated by the summary generation unit 17 on the output device 3 and accepts input for correcting the second medical summary via the input device 2. In this case, for example, the output control unit 18 displays the text indicated by the second medical summary in an input field that allows text editing. The output control unit 18 may then store the second medical summary generated by the summary generation unit 17 or the second medical summary corrected based on the accepted correction input in the storage device 4 or memory 12, transmit it to another device, or print it using a printer.

[0041] Furthermore, when applying the second medical summary to a medical document (e.g., a referral letter, a medical certificate, a discharge summary, etc.), the output control unit 18 may further modify the second medical summary so that it fits into the entry box for the second medical summary in the medical document. For example, if the number of characters that can be entered in the entry box is set, the output control unit 18 further summarizes the second medical summary so that it is within that number of characters. In this case, the output control unit 18 may summarize the second medical summary using any summarization method. The output control unit 18 is an example of a "modification input receiving means" and a "modification means."

[0042] The components of the target medical record acquisition unit 15, the summarization level setting unit 16, the summary generation unit 17, and the output control unit 18 described in FIG. 4 can be implemented, for example, by the processor 11 executing a program. Alternatively, the necessary programs may be recorded on any non-volatile storage medium and installed as needed to implement each component. At least some of these components may not necessarily be implemented by software programs, but may be implemented by any combination of hardware, firmware, and software. At least some of these components may be implemented using a user-programmable integrated circuit, such as an FPGA (Field-Programmable Gate Array) or a microcontroller. In this case, the integrated circuit may be used to implement a program consisting of the above components. At least some of the components may be implemented using an ASSP (Application Specific Standard Produce), an ASIC (Application Specific Integrated Circuit), or a quantum processor (quantum computer control chip). In this way, each component may be implemented by various hardware. The same applies to other embodiments described below. Furthermore, these components may be realized by the cooperation of multiple computers using, for example, cloud computing technology, etc. The same applies to other embodiments described below.

[0043] (4) Generation of First Medical Summary Based on Summarization Level Next, a method for generating a first medical summary based on the summarization level will be described.

[0044] First, the summary generator 17 groups the target medical records by treatment period and performs text analysis on the sentences included in the medical record contents of the target medical records for each group. Here, examples of "text analysis" include morphological analysis, syntactic analysis, context analysis, temporal information analysis, factuality analysis, named entity extraction, and semantic analysis.

[0045] The summary generator 17 then generates a first medical summary for each treatment period based on the text analysis results and the summarization level. For example, the summary generator 17 determines whether to include or delete each sentence (or each section, the same applies below) in the first medical summary based on the importance of the words extracted from the target medical record through text analysis, and determines the above-mentioned judgment criteria based on the summarization level. The above-mentioned judgment criteria are, for example, thresholds compared with the importance of the extracted words, and are set so that the stricter the criterion is, the higher the summarization level. For example, information indicating the correspondence between the summarization level and the judgment criteria (e.g., formula or table information) is pre-stored in the storage device 4, memory 12, etc., and the summary generator 17 determines the judgment criteria from the summarization level by referring to this information. Note that the importance of words may be determined based on categories classified by named entity extraction, etc. For example, if information indicating the correspondence between categories and importance levels is pre-stored in the storage device 4, memory 12, etc., the summary generator 17 references this information and determines the importance of each extracted word based on the category into which it is classified.

[0046] Next, specific examples of first medical summaries according to the summarization level will be described. Here, as an example, the summarization level is divided into three levels: the lowest "Level 1," the highest "Level 3," and "Level 2," which is intermediate between Level 1 and Level 3. First medical summaries based on the summarization levels of Levels 1 to 3 are as follows:

[0047] Level 1 "The patient was referred to our department for the first time on September 29, 2020. Tests to obtain a definitive diagnosis took time. In November 2020, the patient was diagnosed with oropharyngeal adenoid cystic carcinoma with multiple lung metastases. As there were no obvious symptoms and the tissue type was expected to progress slowly, the decision was made to observe the patient's condition. The patient is currently being observed without treatment as an outpatient. As of the examination on October 12, 2021, there has been no obvious growth in the mass, but symptoms such as taking a long time to eat and difficulty speaking have appeared. The treatment plan will be discussed following regular examinations."

[0048] Level 2: "The patient was referred to our department for the first time on September 29, 2020. In November 2020, he was diagnosed with oropharyngeal adenoid cystic carcinoma with multiple lung metastases. He is currently undergoing outpatient observation without treatment. As of the examination on October 12, 2021, there has been no obvious growth in the tumor, but symptoms such as taking a long time to eat and difficulty speaking have appeared."

[0049] Level 3: "Diagnosed with oropharyngeal adenoid cystic carcinoma with multiple lung metastases in November 2020. Currently undergoing outpatient follow-up without treatment. As of the examination on October 12, 2021, there has been no obvious growth."

[0050] In this specific example, a decision is made as to whether or not to keep each sentence as a summary based on the importance of words extracted by text analysis, etc., and the criteria for deciding whether or not to keep a sentence as a summary (for example, the threshold value for the importance mentioned above) become stricter the higher the level of summary level.

[0051] For example, in the specific example described above, the first medical summary with a summarization level of level 3 only contains text related to the treatment method, disease name, and date and time, resulting in a text that is more concise (i.e., more compressed) than the summary texts of levels 1 and 2. Note that the first medical summary with a summarization level of level 1 may contain the text contained in the medical record content of the target medical record as is (i.e., no text is deleted due to summarization).

[0052] The above example is not limiting, and any method may be used to generate a first medical summary based on importance. For example, the summary generation unit 17 may use a model that, when inputting a summarization level and a sentence, generates a summary of the sentence based on the summarization level. In this case, parameters of the above-mentioned model are pre-stored in the storage device 4, memory 12, etc., and the summary generation unit 17 inputs the summarization level and the sentences of the target medical records for each group into a model constructed using the parameters. The summary generation unit 17 then obtains the summary output by the model as the first medical summary.

[0053] (5) Specific Examples of Treatment Periods and Target Periods Figure 5 is a diagram showing the relationship between the treatment periods of a target patient (treatment periods 1 to 3) and examples of set target periods (target periods α and β). In Figure 5, the period from January 2020 is represented by a series of slots equivalent to one month, and the slot corresponding to the month in which the medical record was created is filled in. Here, it is assumed that in treatment period 1, the target patient was treated for disease A, in treatment period 2, the target patient was treated for disease B, and in treatment period 3, the target patient was treated for disease A.

[0054] As a first example, a case will be described in which a target period α including treatment periods 1 and 2 is set. In this case, the medical information processing device 1 generates a first medical summary corresponding to treatment period 1 and a first medical summary corresponding to treatment period 2, and then generates a second medical summary corresponding to target period α based on these first medical summaries. In this case, the medical information processing device 1 in this embodiment regards treatment period 2, which corresponds to the last treatment period in target period α, as the reference treatment period and determines the degree of association between disease B suffered by the target patient during the reference treatment period (i.e., treatment period 2) and the diseases (diseases A and B) suffered by the target patient during each treatment period (i.e., treatment period 1, treatment period 2). The medical information processing device 1 then determines the summarization level corresponding to treatment period 1 based on the degree of association between disease B during the reference treatment period (i.e., treatment period 2) and disease A during treatment period 1. Note that the degree of association corresponding to treatment period 2, which is the reference treatment period, is the maximum value, and therefore the summarization level corresponding to treatment period 2 is the minimum value.

[0055] In this way, in the first example, the medical information processing device 1 can determine the degree of summarization (i.e., the degree of compression) of the medical records for treatment period 1 to be included in the second medical summary corresponding to the target period α based on the relationship between disease B in the latest treatment period 2 and disease A in treatment period 1.

[0056] Next, as a second example, a case will be described in which a target period β including treatment periods 1, 2, and 3 is set. In this case, the medical information processing device 1 generates a first medical summary corresponding to treatment period 1, a first medical summary corresponding to treatment period 2, and a first medical summary corresponding to treatment period 3, and then generates a second medical summary corresponding to target period β based on these first medical summaries. In this case, the medical information processing device 1 in this embodiment regards treatment period 3, which corresponds to the last treatment period in target period β, as the reference treatment period and determines the degree of association between disease A suffered by the target patient during the reference treatment period (i.e., treatment period 3) and diseases suffered by the target patient during each treatment period (i.e., treatment periods 1 to 3). In this case, since treatment period 1 and treatment period 3 correspond to the same disease A as the reference treatment period (i.e., treatment period 3), the degree of association for these periods is maximum and the degree of summarization is minimum. Furthermore, the degree of summarization for treatment period 2 is determined based on the degree of association between disease A during the reference treatment period and disease B during treatment period 2.

[0057] In this way, in the second example, the medical information processing device 1 can determine the degree of summarization (i.e., the degree of compression) of the medical records for past treatment periods 1 and 2 to be included in the second medical summary corresponding to the target period β, based on the relationship between disease A in the latest treatment period 3 and the diseases in each of the past treatment periods.

[0058] (6) Processing Flow FIG. 6 is an example of a flowchart executed by the medical information processing apparatus 1 in the first embodiment.

[0059] First, the medical information processing device 1 determines the target period and target patient for which medical records will be summarized (step S11). The medical information processing device 1 determines the target period and target patient, for example, based on user input from the input device 2. Note that if the target period is not specified, the medical information processing device 1 may determine the entire period for which medical records for the target patient exist (or another specified period) as the target period. Then, the medical information processing device 1 retrieves the target medical records corresponding to the target period and target patient determined in step S11 from the medical record storage unit 41 (step S12).

[0060] Next, the medical information processing device 1 determines the relationship between the injury or illness in the last treatment period of the target period (i.e., the reference treatment period) and the injury or illness in each treatment period included in the target period (step S13). As a result, the medical information processing device 1 determines the relationship for each treatment period. Then, the medical information processing device 1 sets a summarization level for each treatment period based on the relationship determined for each treatment period in step S13 (step S14). Then, the medical information processing device 1 generates a summary of the medical records of the target patient for the target period (i.e., a second medical summary) based on the summarization level set in step S14 (step S15). In this case, the medical information processing device 1 generates a first medical summary that summarizes the medical records for each treatment period based on the summarization level set for each treatment period, and generates a second medical summary by combining the generated first medical summaries.

[0061] Next, the medical information processing device 1 accepts corrections to the second medical summary and outputs the second medical summary reflecting the corrections (step S16). In this case, for example, the medical information processing device 1 displays the second medical summary on the output device 3, accepts corrections to the second medical summary input via the input device 2, and corrects the second medical summary so that it fits within the entry frame of the applicable medical document. Furthermore, the medical information processing device 1 may store the finally generated second medical summary in the storage device 4 or memory 12, etc., or may transmit it to another device, or may print it using a printer.

[0062] <Second embodiment> Figure 7 shows a schematic configuration of a medical information processing system 100A according to the second embodiment. The medical information processing system 100A according to the second embodiment differs from the medical information processing system 100 according to the first embodiment in that a summary of the medical record for each treatment period is stored in advance in a storage device 4A. Hereinafter, the same components as those in the first embodiment will be appropriately designated by the same reference numerals, and their description will be omitted.

[0063] The storage device 4A functionally includes a medical record storage unit 41 and a summary information storage unit 42. The summary information storage unit 42 stores information indicating summaries (also referred to as "summary information") generated for each treatment period for an injury or illness suffered by a patient.

[0064] 8 shows an example of the data structure of summary information in the summary information storage unit 42. The summary information storage unit 42 stores, for example, summary information indicating summaries of medical records created for each treatment period, linked to a patient ID for identifying the patient who received medical care. In the example of FIG. 8, the summary information storage unit 42 stores summary information "SU11" and summary information "SU12" corresponding to a patient identified by patient ID "PID1" linked to the patient ID "PID1," and also stores summary information "SU21" and summary information "SU22" corresponding to a patient identified by patient ID "PID2" linked to the patient ID "PID2."

[0065] Each record of the summary information includes injury / illness information indicating the injury or illness for which treatment was performed, treatment period information indicating the treatment period for the injury or illness, and summary sentence information indicating a summary sentence summarizing the medical record for the treatment period. The summary sentence information includes multiple summary sentences corresponding to multiple candidates for the summarization level that may be set by the medical information processing device 1. Note that the summary information may be generated by the medical information processing device 1 or by a device other than the medical information processing device 1.

[0066] The medical information processing device 1A has, for example, the same hardware configuration and functional blocks as the medical information processing device 1 according to the first embodiment. When generating a first medical summary, the medical information processing device 1A references a summary information storage unit 42. Specifically, the processor 11 of the medical information processing device 1A has, for example, the functional blocks shown in FIG. 4 . When generating a first medical summary based on the summarization level set by the summarization level setting unit 16, the summary generation unit 17 according to the second embodiment references summary information corresponding to the target patient and treatment period for the first medical summary to be generated from the summary information storage unit 42. The summary generation unit 17 then acquires a summary sentence corresponding to the summarization level set by the summarization level setting unit 16 from the summary sentence information of the referenced summary information, and generates a first medical summary indicating the acquired summary sentence.

[0067] Furthermore, in calculating the summarization level, the summarization level setting unit 16 in the second embodiment may identify the injury or illness for each treatment period by referring to the summary information storage unit 42, instead of identifying the injury or illness for each treatment period based on the target medical record supplied from the target medical record acquisition unit 15. In this case, the summarization level setting unit 16 acquires relevant summary information from the summary information storage unit 42 based on the target patient and target period notified by the target medical record acquisition unit 15, and identifies the injury or illness based on the injury or illness information in the summary information. In this case, the target medical record acquisition unit 15 does not need to perform processing to acquire the target medical record from the medical record storage unit 41. In other words, the storage device 4 in the second embodiment does not necessarily have to include the medical record storage unit 41.

[0068] As described above, the medical information processing device 1A in the second embodiment can generate a second medical summary based on the summary information stored in the summary information storage unit 42.

[0069] <Third embodiment> Figure 9 shows a schematic configuration of a medical information processing system 100B in a third embodiment. The medical information processing system 100B according to the third embodiment is a server-client model system, in which a medical information processing device 1B functioning as a server device performs the processing of the medical information processing device 1 in the first embodiment or the medical information processing device 1A in the second embodiment. Hereinafter, the same components as those in the first or second embodiment will be appropriately designated by the same reference numerals, and their description will be omitted.

[0070] The medical information processing system 100B mainly includes a medical information processing device 1B that functions as a server, a storage device 4B that stores data similar to the storage device 4 according to the first embodiment or the storage device 4A according to the second embodiment, and a terminal device 8 that functions as a client. The medical information processing device 1B and the terminal device 8 communicate data via a network 7.

[0071] The terminal device 8 is a terminal having input, display, and communication functions, and functions as the input device 2 and the output device 3 shown in Fig. 1. The terminal device 8 may be, for example, a personal computer, a tablet terminal, a PDA (Personal Digital Assistant), etc. The terminal device 8 transmits input signals based on user input to the medical information processing device 1B.

[0072] The medical information processing device 1B has the same hardware configuration and functional block configuration as the medical information processing device 1 according to the first embodiment or the medical information processing device 1A according to the second embodiment. The medical information processing device 1A receives input signals, etc. from a terminal device 8 via a network 7, identifies target patients and target periods, etc. based on the received information, and generates a corresponding second medical summary, etc. The medical information processing device 1B also exchanges output signals indicating information, etc. related to the generation result of the second medical summary and input signals indicating information, etc. related to correction of the generated second medical summary, with the terminal device 8 via the network 7. That is, in this case, the terminal device 8 functions as the input device 2 and output device 3 in the first embodiment or the second embodiment.

[0073] As described above, the medical information processing system 100B in the third embodiment can generate a second medical summary corresponding to a target patient and target period designated by the user, and present it to the user.

[0074] 10 is a block diagram of a medical information processing device 1X according to a fourth embodiment. The medical information processing device 1X mainly includes a summarization level setting unit 16X and a summary generating unit 17X. The medical information processing device 1X may be configured by a plurality of devices.

[0075] The summarization level setting means 16X sets the degree of summarization of the medical records for each of the plurality of treatment periods based on the relationship between injuries and illnesses of the subject during the plurality of treatment periods. The summarization level setting means 16X can be, for example, the summarization level setting unit 16 in the first to third embodiments.

[0076] The summary generating means 17X generates a summary of the medical records for a target period including multiple treatment periods based on the medical records and the degree of summarization. The summary generating means 17X can be, for example, the summary generating unit 17 in the first to third embodiments.

[0077] 11 is an example of a flowchart executed by the medical information processing apparatus 1X in the fourth embodiment. The summarization level setting means 16X sets the degree of summarization of the medical records for each of the treatment periods based on the relationship between injuries and illnesses of the subject during the treatment periods (step S21). The summary generation means 17X generates a summary of the medical records for the target period including the treatment periods based on the medical records and the summarization level (step S22).

[0078] According to the fourth embodiment, the medical information processing device 1X can generate a summary of medical records for a target period including a plurality of treatment periods based on the relationship between injuries and illnesses during the treatment periods.

[0079] In each of the above-described embodiments, the program can be stored using various types of non-transitory computer-readable media and supplied to a computer processor, etc. Non-transitory computer-readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic storage media (e.g., flexible disks, magnetic tapes, hard disk drives), magneto-optical storage media (e.g., magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / Ws, semiconductor memories (e.g., mask ROMs, programmable ROMs (PROMs), erasable PROMs (EPROMs), flash ROMs, and random access memories (RAMs). The program may also be supplied to a computer by various types of transient computer-readable media. Examples of transient computer-readable media include electric signals, optical signals, and electromagnetic waves. The transient computer-readable medium can supply the program to a computer via a wired communication path such as an electric wire or optical fiber, or via a wireless communication path.

[0080] In addition, part or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes.

[0081] [Supplementary Note 1] A medical information processing device comprising: a summarization level setting means for setting a level of summarization of medical records for each of a plurality of treatment periods of a subject based on a relationship between an injury or illness between the plurality of treatment periods; and a summary generating means for generating a summary of the medical records for a target period including the plurality of treatment periods based on the medical records and the level of summarization. [Supplementary Note 2] The medical information processing device of Supplementary Note 1, wherein the summarization level setting means sets the level of summarization for each of a plurality of treatment periods based on a relationship between an injury or illness in a final treatment period in the target period and an injury or illness in each of the plurality of treatment periods. [Supplementary Note 3] The medical information processing device of Supplementary Note 2, wherein the summarization level setting means lowers the level of summarization for a treatment period that has a higher degree of relationship between the injury or illness and the final treatment period in the target period. [Supplementary Note 4] The medical information processing device of Supplementary Note 1, wherein the summarization level setting means identifies the injury or illness for each of the plurality of treatment periods based on the medical records for each of the plurality of treatment periods. [Supplementary Note 5] The medical information processing device according to Supplementary Note 1, wherein the summary generation means acquires a first medical summary by summarizing the medical records corresponding to each of the plurality of treatment periods based on the degree of summarization corresponding to each of the plurality of treatment periods, and generates a second medical summary that is a summary of the medical records for the target period based on the first medical summaries corresponding to each of the plurality of treatment periods. [Supplementary Note 6] The medical information processing device according to Supplementary Note 5, further comprising a medical record acquisition means for acquiring the medical records for each of the plurality of treatment periods, and wherein the summary generation means generates the first medical summary for each of the plurality of treatment periods based on the medical records for each of the plurality of treatment periods and the degree of summarization corresponding to each of the plurality of treatment periods. [Supplementary Note 7] The medical information processing device according to Supplementary Note 5, wherein the summary generation means acquires the first medical summary by referring to summary information indicating the relationship between the degree of summarization and a summary sentence that summarizes the medical records corresponding to each of the plurality of treatment periods based on the degree of summarization. [Supplementary Note 8] The medical information processing device according to Supplementary Note 1, further comprising a correction input accepting unit that accepts a correction input for the summary for the target period.[Supplementary Note 9] The medical information processing device according to Supplementary Note 1, further comprising a correction means for correcting the summary for the target period so that it fits within an entry frame of an applicable medical document. [Supplementary Note 10] A medical information processing method, in which a computer sets a degree of summarization of medical records for each of a plurality of treatment periods of a subject based on the relationship between injuries and illnesses between the plurality of treatment periods, and generates a summary of the medical record for a target period including the plurality of treatment periods based on the medical records and the degree of summarization. [Supplementary Note 11] A storage medium storing a program that causes a computer to execute the processes of setting a degree of summarization of medical records for each of a plurality of treatment periods based on the relationship between injuries and illnesses between the plurality of treatment periods of the subject, and generating a summary of the medical record for a target period including the plurality of treatment periods based on the medical records and the degree of summarization.

[0082] Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments. Various modifications within the scope of the present invention that would be understood by those skilled in the art can be made to the configuration and details of the present invention. In other words, the present invention naturally includes various modifications and alterations that would be possible for those skilled in the art based on the entire disclosure, including the claims, and the technical ideas. Furthermore, the disclosures of the above-cited patent documents and non-patent documents are incorporated herein by reference.

[0083] 1, 1A, 1B, 1X Medical information processing device 2 Input device 3 Output device 4 Storage device 8 Terminal device 100, 100A, 100B Medical information processing system

Claims

1. a summarization level setting means for setting a level of summarization of the medical records for each of a plurality of treatment periods based on the relationship between injuries and illnesses of the subject during the plurality of treatment periods; a summary generating means for generating a summary of the medical records for a target period including the plurality of treatment periods based on the medical records and the degree of summary; A medical information processing device having the above.

2. The medical information processing device according to claim 1 , wherein the summarization level setting means sets the degree of summarization for each of a plurality of treatment periods based on a relationship between the injury or illness in the last treatment period in the target period and the injury or illness in each of the plurality of treatment periods.

3. The medical information processing device according to claim 2 , wherein the summarization level setting means sets a lower summarization level for a treatment period that has a higher degree of association of injury or illness with the final treatment period in the target period.

4. The medical information processing apparatus according to claim 1 , wherein the summarization level setting means identifies the injury or illness for each of the plurality of treatment periods based on the medical records for each of the plurality of treatment periods.

5. the summary generating means acquires a first medical summary by summarizing the medical records corresponding to each of the plurality of treatment periods according to the degree of summarization corresponding to each of the plurality of treatment periods; The medical information processing device according to claim 1 , further comprising: generating a second medical summary, which is a summary of the medical records for the target period, based on the first medical summaries corresponding to each of the plurality of treatment periods.

6. further comprising a medical record acquisition means for acquiring the medical records for each of the plurality of treatment periods; The medical information processing device according to claim 5, wherein the summary generating means generates the first medical summary for each of the plurality of treatment periods based on the medical records for each of the plurality of treatment periods and the degree of summary corresponding to each of the plurality of treatment periods.

7. The medical information processing device described in claim 5, wherein the summary generation means acquires the first medical summary by referring to summary information indicating the relationship between the degree of summarization and a summary sentence that summarizes the medical records corresponding to each of the multiple treatment periods based on the degree of summarization.

8. The medical information processing apparatus according to claim 1 , further comprising a correction input receiving unit that receives a correction input for the summary for the target period.

9. The computer setting a degree of medical record summarization for each of the plurality of treatment periods based on the relationship between injuries and illnesses among the plurality of treatment periods of the subject; generating a summary of the medical records for a target period including the plurality of treatment periods based on the medical records and the degree of summary; Medical information processing methods.

10. setting a degree of medical record summarization for each of the plurality of treatment periods based on the relationship between injuries and illnesses among the plurality of treatment periods of the subject; A program that causes a computer to execute a process of generating a summary of the medical records for a target period that includes the multiple treatment periods, based on the medical records and the degree of summary.