JPH09237304A - Information recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information recording and reproducing device efficiently recording and reproducing recorded information and its correction history. SOLUTION: This device is provided with a storage medium 1 recording information as plural records 2, which respectively include at least data, an identifier corresponding to data and recording time information showing the time of recording the record in the storage medium 1. In order to correct data in a desired record 2 in the storage medium 1, a new record 2 including at least corrected data, the identifier of the desired record 2 and correcting time information showing the time of correcting is additionally recorded in the storage medium 1. At the time of reading a record corresponding to the desired identifier from the storage medium 1, a record 2 recording recent recording time information and recent correcting time information among the records 2 with the desired identifier is read out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus capable of recording / reproducing information and its correction history.

[0002]

2. Description of the Related Art Due to the nature of medical information, it is necessary to store a correction history. As a technique for realizing this, there is an input / output control method for an electronic medical record disclosed in Japanese Patent Laid-Open No. 4-333973, and as a technique for using a non-rewritable recording medium, a medical image disclosed in Japanese Patent Laid-Open No. 7-146811 is used. There is a data filing device. Further, there is a database system disclosed in Japanese Patent Laid-Open No. 168748/1995 as a technique for realizing a database that leaves a history not limited to medical treatment and correction.

[0003]

Conventionally, a correction that leaves a history in an electronic medical record has been realized by access control by a system, and it cannot be said that protection against falsification by a person who operates the system is necessarily strong. However, constructing a database using a non-rewritable recording medium has not always been efficient because it lacks flexibility in dealing with corrections that are difficult to predict in advance.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an information recording / reproducing apparatus capable of efficiently recording and reproducing a correction history of prerecorded information.

[0005]

An information recording / reproducing apparatus according to claim 1 has a recording medium for recording information in a plurality of records, each of the plurality of records having data and an identifier corresponding to the data. , At least recording time information indicating the time when the record was recorded on the recording medium, and when correcting the data of the desired record in the recording medium, the corrected data, the identifier of the desired record, and the correction When a new record including at least the correction time information indicating the time at which the recording was performed is additionally recorded on the recording medium and the record corresponding to the desired identifier is read from the recording medium, the record having the desired identifier is recorded. Of these, the record having the latest recording time information or correction time information is read out.

According to the information recording / reproducing apparatus of the first aspect, the information recorded on the recording medium and the correction thereof can be simplified by simply using the simple indexes of the recording time information and the correction time information. History and can be managed.

An information recording / reproducing apparatus according to a second aspect of the present invention is configured to read the latest record corresponding to the desired identifier and the record indicating the history of correction from the recording medium in the apparatus according to the first aspect. It

According to the information recording / reproducing apparatus of the second aspect, the latest record and the record showing the correction history of the record corresponding to the desired identifier can be obtained from the recording medium.

According to a third aspect of the present invention, there is provided an information recording / reproducing apparatus according to the first or second aspect, wherein the recording medium is a write once type magneto-optical disk or a write once type semiconductor memory. The recording medium can be obtained at low cost.

According to a fourth aspect of the present invention, there is provided an information recording / reproducing apparatus in which the recording medium of the apparatus according to the first or second aspect is a rewritable recording medium, and an erasing prevention means for preventing the recorded contents from being erased. Further, the erasure prevention means and the rewritable recording medium are configured to be sealed.

According to the information recording / reproducing apparatus of the fourth aspect, the erasure prevention means and the sealing treatment do not impair the provision for tampering, and replace the non-rewritable recording medium having a relatively slow access speed with a general recording medium. Since a rewritable recording medium can be used, efficient information recording / reproducing can be realized.

An information recording / reproducing apparatus according to a fifth aspect of the present invention has a storage buffer which is a rewritable memory in the information recording / reproducing apparatus according to any one of the first to fourth aspects.
Records having the same recording time information are configured to be recorded on the recording medium after the editing is completed in the storage buffer.

Since the information recording / reproducing apparatus according to the fifth aspect is configured as described above, the retrieval based on the recording time information of the record on the recording medium becomes easy, and even a slight data error is recorded on the recording medium. Since it can be corrected in the storage buffer before it becomes, the storage capacity of the recording medium can be saved.

An information recording / reproducing apparatus according to a sixth aspect of the present invention is configured such that, in the apparatus according to any one of the first to fifth aspects, only a record requiring a correction history is recorded on a recording medium.

The apparatus according to the sixth aspect is configured as described above, and by storing only the record for which the correction history is necessary in the recording medium, it is possible to update the record that is updated on a daily basis and does not need the update history. Enables efficient storage.

An information recording / reproducing apparatus according to a seventh aspect of the present invention is such that the contents of the record of the apparatus according to any of the first to sixth aspects relate to a medical chart.

According to the information recording / reproducing apparatus of the seventh aspect, it is possible to efficiently record and reproduce the history of recording and correction of the information on the medical chart.

According to an eighth aspect of the information recording / reproducing apparatus, the content of the record of the apparatus according to any one of the first to sixth aspects is information for economic transaction via a communication network, and at least the economic transaction is performed. It is configured to include the authentication data of the individual involved.

The information recording / reproducing apparatus according to the eighth aspect is configured in this way, and it is possible to efficiently manage the record of information for economic transaction through the communication network and the history of correction thereof.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of an electronic medical chart system according to an embodiment of the present invention. In the figure, the electronic medical chart system includes a storage medium 1, a record reading unit 3 that reads data from the storage medium 1, a database management unit 4 that includes a correction processing unit 41 and a temporary storage buffer 42, and manages data in the storage medium 1 and the storage medium 1. A record writing unit 5 for writing data to and a medical record editing unit 6 for editing a medical record are included. Data managed by the electronic medical record system is recorded in the storage medium 1 in units of record 2. In the drawing, the symbol attached to each record 2 represents the first medical unit recorded by the record 2 in the first alphabet, and the next number represents the number of updates. Therefore, for example, the record 2 with the symbol A2 is a correction record of any one of the records 2 with the symbol A1.

FIG. 2 is a diagram showing an example of the format of the record 2. In each record 2, the examination date and time K1 of the actual examination as the search key and the recording date and time K2 in the storage medium 1
Also, record specifying information K3, record reference information R used for convenience of retrieval described later, and data D that is the content of actual medical care are recorded. Record identification information K
3 is, for example, a patient code that identifies a patient, a medical department, and a combination thereof, and is information that indicates which record 2 belongs to a medical record that describes one medical unit. The same medical examination date and time K1 and record identification information. One or more records 2 having K3 form a medical record describing one medical treatment unit.

The description of the medical record edited by the medical record editing unit 6 is first recorded in the temporary storage buffer 42 provided in the database management unit 4, and the content is stored by the record writing unit 5 at a predetermined timing such as the end of medical treatment. Records 2 are sequentially recorded on the medium 1.

Due to the nature of the data that the record 2 once recorded in the storage medium 1 is a medical chart, neither deletion nor modification is permitted. Therefore, in order to correct or change the data D of the desired record 2 in the storage medium 1, the record 2 having the same record specifying information K3 and the examination date K1 as the record 2 desired to be corrected or changed is stored. This is performed by additionally recording on the medium 1. Therefore, at the time of displaying the medical record thereafter, the record specifying information K3 and the consultation date and time K1 which respectively match the information (patient code) for identifying the patient in the record specifying information K3 designated by the record reading unit 3 and the consultation date and time K1. One or more records 2 that have are read. The correction processing unit 41 uses the read one or more records 2
The youngest (latest) recording date K2 is adopted as the correct description.

The chart editing unit 6 temporarily holds the description of the chart to be recorded in the record 2 in advance in the temporary storage buffer 42, and records it in the storage medium 1 at an appropriate time after the end of the medical treatment unit. The recording date and time K2 of all the records 2 related to the medical care unit can be the same. As a result, the search based on the recording date K2 can be facilitated. Further, even a small recording difference such as a typographical error / missing character in the middle of medical treatment can be corrected before the permanent recording using the storage medium 1, so that the storage capacity of the storage medium 1 can be saved.

The above-mentioned record can be realized by a normal database having access restrictions such that only record 2 is permitted to be added and deletion or update is not permitted. By adding the reference information R, it is possible to efficiently record to a recording medium such as a P-ROM or a multi-session type CD-ROM that can only add data.

FIG. 3 is a conceptual diagram showing a record recording method and a search method according to the embodiment of the present invention. In FIG. 3, the record 2 registered in the storage medium 1 is additionally registered at the end of the already registered record 2 group in the storage medium 1. Therefore, in the storage medium 1, the record 2 is registered in the recording order from the beginning. The record reference information R is attached according to the following rules. First, regarding the record 2 for correction, regardless of which medical unit the correction record 2 is related to, for each correction record 2, the record date K2 of the correction record 2 registered immediately before in the storage medium 1 is referred to as the record reference information R. To record as. As a result, all the corrected records are linked together, and the oldest recording date K
For the correction record 2 having 2, the information that can be understood, for example, the recording date and time K2 of itself is recorded in the record reference information R.

On the other hand, for the non-corrected record 2, the recording date K2 of the record 2 for the same medical care unit is aligned with the medical treatment date K1 by the method described above. In the last non-correction record 2, the recording date K2 of the immediately preceding non-correction record 2 belonging to another medical care unit is recorded.

For the convenience of retrieval and recording, if the recording date K2 of the non-correction record 2 having the latest recording date and time and the recording date K2 of the correction record 2 are held in another rewritable recording medium, the above processing is performed. Easy to achieve. Even if there is no such information, by reading from the last record 2 of the storage medium 1 and comparing the medical treatment date K1 and the recording date K2, the non-correction record 2 and the correction record 2 can be easily distinguished. At the time when both the corrected record 2 and the non-corrected record 2 are read at least once, it is possible to obtain the information necessary for searching and recording.

In order to retrieve the record 2 relating to a certain medical unit, the correction record 2 which has been linked in a number by the record reference information R is first checked, and if it exists, the correction record 2 relating to the relevant medical unit is obtained, and then the record 2 is obtained. By obtaining the non-corrected record 2 based on the record reference information R or based on the recording date / time K2 = the medical treatment date / time K1, all the necessary records 2 can be obtained.

In order to facilitate the search, a correlation table between the recording date K2 and the physical or logical position in the storage medium 1 may be prepared in advance, or the current storage medium 1 may be used. Total recording amount, recording start date and time, recording date and time of record to be searched, and current date and time are used ((Record date and time of record to be searched)-(Recording start date and time)) / ([Current date and time]-[Recording start date and time] ) × [current total storage amount] = [physical (logical) position of record to be searched]

FIG. 4 is a conceptual diagram when a storage area of a recording medium according to the embodiment of the present invention is provided for each patient.
FIG. 5 is a conceptual diagram when an independent recording medium is provided for each patient according to the embodiment of the present invention. As shown in FIG. 4, the area of the storage medium 1 is divided for each patient based on the patient code of the record specifying information K3, and the record 2 for each patient is independently stored in each area. Since it is usually necessary to refer only to the latest record R for each patient, this improves the search convenience. This may be an independent storage medium 1 for each patient as shown in FIG. In the case of FIG. 5, the storage medium 1 can be realized by using an IC card or the like, and rewriting is not required.
-A medium such as a ROM, which does not require a power supply and is difficult to tamper with, can be used for storage. If the storage medium 1 is a write once type magneto-optical disk or a write once type semiconductor memory, the cost will be low.

FIGS. 6A and 6B are schematic diagrams of a non-alterable recording medium using a rewritable storage device according to an embodiment of the present invention. The storage medium 1 may be configured using the rewritable storage device 11 controlled by the access area monitoring unit 10 as shown in FIG. The access area monitoring unit 10 monitors that the physical or logical write position is constantly incremented or decremented when writing to the rewritable storage device 11, and the once-recorded area is never written again. Since it does not have to be performed, it can be configured so that the data in front of the storage medium 1 is not erased with a simple logic. By using a general connector, a normal storage device or a connection cable 8 via the cable fixing portion 7 can be used. Easy to connect to. Further, tampering can be prevented by sealing the whole body with the sealing case 9.

As for this sealing, there are electronic sealing processing and physical sealing processing. The electronic sealing procedure is, for example,
For the method of storing in a housing with a locking device that requires the insertion of an ID card or the input of a personal identification number for unlocking, or for all electrical and electronic connections, monitor the signal and confirm that the connection has been disconnected once. If it is detected, a person who has the authority connects by using a connection interface or a connector that has a function of not returning the connection unless the reconnection is set. Further, the physical sealing treatment is to use a seal that is displayed as opened after it has been opened. If this is a screw, it can be sealed using a screw that holds the license plate of the automobile.

The rewritable storage device 11 shown in FIG.
It is an ordinary hard disk device, a rewritable magneto-optical disk, a floppy disk, a rewritable semiconductor memory device or a magnetic tape.

FIG. 7 is a conceptual diagram of a system for allocating information recording destinations according to the necessity / unnecessity of storing the correction history according to the embodiment of the present invention. The system of FIG. 7 includes an integrated interface 13, a database selection unit 14, a correspondence table 15, a history storage database 16 for storing data that needs history storage, and a rewrite database 17 for storing data that does not need history storage. Including. The history storage database 16 corresponds to the storage medium 1 in FIG. The system of FIG. 7 has a function capable of integrally and efficiently storing the data of the storage medium 1 of FIG. 1 and the information that does not need to store the correction history, for example, the data that is frequently rewritten or has a large capacity. It is a thing. Database 16
Since external requests for search / registration / update to 17 are made via the integrated interface 13,
From the outside, the databases 16 and 17 are treated as if they were one database. Integrated interface 1
In response to the access from 3, the database selection unit 14 determines whether the history storage database 1
6 or the rewriting database 17 to assign access.

The determination regarding the distribution is made based on the search key included in the record specifying information K3, for example. In detail, each search key and information as to whether or not a record including the search key in the record specifying information K3 needs to have a correction history stored are stored in the correspondence table 15 in advance, and the search / registration is performed. Correspondence table 15 based on the record specifying information K3 of the target record for each update request
By searching for.

In this way, only the data that needs the correction history is saved in the history saving database 16, and the data that is updated on a daily basis and does not need the update history is saved in the rewriting database 17. It is possible to provide an efficient storage method according to the nature without the user being aware of it.

Although the above-mentioned system is shown as an electronic medical record system, it is not limited to this, but it can be used for a shopping street virtually formed through a communication network: a transaction record in virtual shopping. You can In this case, the record 2 is made to include authentication symbol information such as a seal stamp of the parties to be bought and sold.

Further, it is also suitable for use in a highly important application of records such as maintenance records of facilities requiring a high degree of safety such as nuclear power plants and large-scale transportation facilities (for example, aircraft).

[Brief description of drawings]

FIG. 1 is a configuration diagram of an electronic medical chart system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a format of a record shown in FIG.

FIG. 3 is a conceptual diagram showing a record recording method and a search method according to an embodiment of the present invention.

FIG. 4 is a conceptual diagram when a storage area of a recording medium according to an embodiment of the present invention is provided for each patient.

FIG. 5 is a conceptual diagram when an independent recording medium is provided for each patient according to the embodiment of the present invention.

6A and 6B are schematic diagrams of a non-alterable recording medium using a rewritable storage device according to an embodiment of the present invention.

FIG. 7 is a conceptual diagram of a system for allocating recording destinations of information according to necessity / unnecessity of storing correction history according to another embodiment of the present invention.

[Explanation of symbols]

 1 storage medium 2 record 3 record reading unit 4 database management unit 5 record writing unit 6 chart editing unit 41 correction processing unit 42 temporary storage buffer K1 examination date and time K2 recording date and time K3 record specific information R record reference information D data The same reference numerals indicate the same or corresponding parts.

Claims (8)

[Claims] 1. A recording medium for recording information in a plurality of records, wherein each of the plurality of records indicates data, an identifier corresponding to the data, and a time when the record was recorded on the recording medium. When the data of the desired record in the recording medium is corrected, the corrected data, the identifier of the desired record, and the time when the correction is performed are included. When additionally recording the new record including at least the correction time information in the recording medium and reading the record corresponding to the desired identifier from the recording medium, the record having the desired identifier is recorded. An information recording / reproducing apparatus, wherein a record having the latest recording time information or correction time information is read out. 2. The latest record corresponding to the desired identifier and the record indicating the history of correction are read out from the recording medium.
An information recording / reproducing apparatus according to claim 1. 3. The recording medium is a write once type magneto-optical disk or a write once type semiconductor memory.
Alternatively, the information recording / reproducing apparatus described in 2. 4. The recording medium is a rewritable recording medium, further comprising erasure prevention means for preventing the recorded contents from being erased, and the erasure prevention means and the rewritable recording medium are sealed. The information recording / reproducing apparatus according to claim 1 or 2, wherein a treatment is performed. 5. A storage buffer comprising a rewritable memory, wherein the records having the same recording time information are recorded on the recording medium after the completion of editing in the storage buffer. 5. The information recording / reproducing apparatus according to any one of 4 to 4. 6. The information recording / reproducing apparatus according to claim 1, wherein only the record requiring a correction history is recorded on the recording medium. 7. The information recording / reproducing apparatus according to claim 1, wherein the content of the record relates to a medical chart. 8. The content of the record is information for economic transaction via a communication network, and includes at least authentication data of an individual involved in the economic transaction.
7. The information recording / reproducing apparatus according to any one of 6 to 6.