JP2002251462A - Medical chart information managing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical information system which prohibits a doctor from rewriting or deleting a patient's diagnostic information maliciously and which, in case malpractice should occur, prohibits a doctor from altering a diagnosis of a patient or the like made by the doctor in the past maliciously. SOLUTION: The system is characterized by the fact that it comprises a storage medium for a doctor in which information unique to the doctor is stored, a storage medium for a patient in which information unique to the patient is stored, a reader to read stored information of the storage medium and a host computer unit comprising a database of diagnostic information to store diagnostic information, a database of information unique to the doctor, a control means to specify a write area for the diagnostic information from the database of diagnostic information based on the information unique to the patient read from the reader, a collation means to collate the information unique to the doctor read from the reader with the information unique to the doctor registered in the database of information unique to the doctor and a write permission means to permit write processing of diagnostic information in the database of diagnostic information only when the collation means has proved that the information is consistent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical chart information management system that enables a doctor to store medical information, which is medical chart information of a patient, in a storage device and manage the medical information.

2. Description of the Related Art Conventionally, when a doctor examines a patient, medical information, which is medical record information such as a disease name and a name of a medicine to be administered, is written in the medical record, and these medical records are stored. Normally, these medical records are written by hand with a writing instrument such as a pen when a doctor examines a patient using a paper medium, so if a medical accident such as a medical error occurs, the doctor Doctors can maliciously rewrite the medical chart entries to their advantage, or recreate them as if there were no new medical mistakes. Therefore, in the event of a medical error, there is a danger that the affected patient may not be able to use the contents of the chart as evidence in order to prove the doctor's responsibilities. There is a problem that there is doubt about the credibility of the company.

[0003] A medical information system has already been disclosed, in which consultation information to be entered in a medical chart is made using a computer system without using a paper medium. In this medical information system, a doctor inputs medical examination information, which is medical chart information entered in a medical chart, using an input device, and writes and stores the medical information in a storage unit of a computer. However, even with a computer system, the doctor can freely rewrite the patient's consultation information written in the storage means, so that the doctor can maliciously change or delete these consultation information. Therefore, the conventional medical chart computer system also has a problem in the reliability of the stored medical examination information.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to prevent a doctor from maliciously rewriting or erasing a patient's medical examination information in the absence of a patient, even if a medical error occurs. A medical information system that prevents falsification of medical examination information, which is medical record information such as records of medical treatments and medications given to patients in the past when doctors examined patients, provide.

[0005]

A medical information system according to the present invention is a medical chart information management system in which a doctor stores patient's examination information in a storage device and manages the information, wherein a doctor-specific information for specifying a doctor is stored. Storage means for a doctor having means and an arithmetic function, storage means for storing patient-specific information for identifying a patient, a storage medium for a patient having an arithmetic function, and a reading device for reading information stored in the storage medium A consultation information database for storing consultation information of patients, a doctor-specific information database in which doctor-specific information is registered in advance, and a consultation information database from the consultation information database based on the patient-specific information read from the reader. Control means for specifying a writing area; physician-specific information read from the reading device; And a host computer device having a write permitting unit for permitting a write process of the consultation information to the consultation information database only when a match is found in the collation by the check unit. It is characterized by the following.

[0006] Further, according to the present invention, the control means may be provided only when patient-specific information is read from the reading device.
A process of writing consultation information in the consultation information database is performed. Further, the present invention is characterized in that the storage medium is an IC card having a storage means and an arithmetic function.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing an outline of the overall configuration of a chart information management system of the present invention, and FIG.
Is a system block diagram of the chart information management system of the present invention, FIG. 3 is a plan view of a doctor card used in the present invention, FIG. 4 is a plan view of a patient card used in the present invention,
FIG. 5 is an explanatory diagram of a method of encrypting data registered in the consultation information database, FIG. 6 is a diagram illustrating a method of checking the security of data registered in the unique information database, and FIG. 7 is a host computer device. FIG. 8 illustrates a method for checking whether the patient card is the correct card.
5 is a flowchart showing a processing procedure of the present invention.

As shown in FIG. 1, one embodiment of the medical record information management system of the present invention is,
Examination room A where doctors such as internal medicine and pediatrics examine patients.
B, a computer terminal 1 and a card reader / writer 2
And each of these computer terminals 1
It is communicably connected to a host computer device 3 installed in an information management center or the like via a communication line 4.

In the present invention, as shown in FIGS.
Doctor's card 5 which is a storage medium for the doctor possessed by the doctor
And a patient card 6 which is a storage medium for the patient possessed by the patient, and it is preferable that the doctor card 5 and the patient card 6 use IC cards having IC modules 5a and 6b, respectively. . The doctor's card 5 carried by the doctor is issued for each doctor engaged in medical treatment and must be possessed when performing a medical examination. Further, the patient card 6 carried by the patient must be issued from the hospital at the time of the first consultation and must be possessed at the time of the re-examination. The doctor's card 5 and the patient's card 6 have storage means for storing information and an arithmetic function, and encrypt information such as consultation information by a cryptographic program including a hash function incorporated in the card. Can be replaced with data.

FIG. 2 shows one computer terminal 1 and a card reader / writer 2 provided in one examination room for easy explanation, and a host computer connected to the computer terminal 1 via a communication line. A system block diagram showing the relationship with the device 3 is shown. The card reader / writer 2 is provided with an information reading means 21 for reading information stored in the storage means of the doctor's card 5 and the patient's card 6, and an information writing means 22 for writing information in the storage means. And these doctor cards 5
It is configured to be able to perform reading processing and writing processing of information stored in the patient card 6.

The storage means of the doctor's card 5 stores doctor-specific information consisting of a unique ID number defined for each doctor, and the storage means of the patient's card 6 stores information for each patient. Patient-specific information including a predetermined unique ID number is stored. Therefore, the information is managed so that the doctor's name is known from the doctor's unique information, and the patient's name is known from the patient's unique information.

The computer terminal 1 has a display unit 10, an input unit 11, a storage unit 12, and a control unit 1.
3 are provided. The computer terminal 1 and the card reader / writer 2 are placed in each examination room, and the doctor can use the input means 11 of the computer terminal 1 to check the diagnosis result of the patient and the medical treatment performed on the patient. Medical information such as records of administered drugs can be entered.

At least before the doctor inputs the consultation information from the input means 11 of the computer terminal 1, the patient inserts the patient's card 6 into the card reader / writer 2 and inserts the patient's card 6 into the card reader / writer 2. The patient-specific information stored in the storage means is read, and the doctor card 5 possessed by the doctor is inserted into the card reader / writer 2 so that the doctor-specific information stored in the storage means of the doctor card 5 is read. It is.

The host computer 3 has an input means 31, a display means 32, an output means 33 such as a printer, an examination information database 35 for storing examination information of patients, and doctor-specific information registered in advance. Storage means 34 having a doctor-specific information database 36;
And a card reader / writer 2 which is a card reader.
The matching means 37 for matching the doctor-specific information read by the doctor with the doctor-specific information registered in the doctor-specific information database, and only when the matching result obtained by the matching processing of the doctor-specific information by the matching means 37 matches, The system includes a write permitting unit 38 for permitting the writing process of the consultation information to the consultation information database, and a control unit 39 for controlling each of the units.

Further, the control means 39 specifies a writing area for writing medical information for each patient from the medical information database based on the patient-specific information read from the reading device. The writing area for writing the diagnosis information in the diagnosis information database manages patient-specific information including a unique ID number for each patient by inserting a patient card 6 into the card reader / writer 2 when the patient is a first-time visit. Determine as a number.

Therefore, from the time of re-examination, the patient-specific information of the patient card 6 is read by the card reader / writer 2 to specify a writing area in the examination information database where the examination information is to be written. In other words, if the patient does not have the patient's card 6 even if he / she tries to write the diagnosis information maliciously when there is no patient, the writing area of the diagnosis information database is not specified by the control means 39, and the doctor freely writes the diagnosis information. Cannot write to consultation information database.

The control means 39 is operable to read the examination information in the examination information database only when the patient-specific information stored in the patient card 6 is read from the card reader / writer 2 which is a reader. The medical information writing process can be performed on the writing area to be written. As a result, it is possible to double check whether the doctor has written illegal information or changed stored information.

Next, the processing procedure of the embodiment of the present invention will be described. Here, the processing procedure when the patient card 6 has already been issued to the patient will be described below. First, after the patient enters the examination room, the patient card 6 is inserted into the card reader / writer 2 to read the patient-specific information (S1). The patient-specific information read by the card reader / writer 2 is transmitted from the computer terminal 1 to the host computer 3 (S2), and the control means 3
The medical information read from the medical information database specified in the medical information database based on the patient-specific information received in step 9 is read and transmitted to the computer terminal 1 (S
3).

The doctor then displays the previously stored past medical examination information on the display means 10 of the computer terminal 1, examines the current medical treatment and the prescription of the medicine while examining the patient, and examines the contents of these. Is input from the input unit 11 as medical examination information as medical record information (S4).

The doctor who has finished examining the patient inserts the doctor's card 5 into the card reader / writer 2 after inputting the consultation information with signature information and stored in the storage means of the doctor's card 5. The doctor-specific information is read (S5). Here, the medical examination information is stored in the doctor card 5 after being encrypted by the encryption program including the hash function incorporated in the doctor card 5 in the doctor card 5 as shown in FIG. This is encrypted with the secret key, and this is used as the doctor's signature data.

The doctor-specific information read by the card reader / writer 2 is transmitted from the computer terminal 1 to the host computer 3 (S6), where it is compared with the doctor-specific information registered in the doctor-specific information database.
Are collated (S7). Here, the doctor's signature data is also verified. As a verification method, as shown in FIG. 6, data obtained by encrypting the examination information by a cryptographic program including a hash function incorporated in the doctor's card 5 is used. By comparing the data registered in the doctor-specific information database with the data corresponding to the examination information decrypted based on the public key corresponding to the secret key stored in the doctor's card 5, the match / mismatch is verified. Here, if they match, it can be authenticated that the correct doctor has attached.

Next, in order to make the prevention of fraud by the doctor more strict, the doctor displays the consultation information input by the input means 11 on the display means 10 to show it to the patient and confirm the contents. After having the patient, the patient inserts the patient card 5 into the card reader / writer 2, reads the patient-specific information stored in the storage means of the patient card 5, and reads the patient-specific information from the computer terminal 1. The data is transmitted to the host computer 3 (S8).

Then, the control means 39 of the host computer device 3 controls the examination information database 3 only when the patient-specific information is read from the card reader / writer 2.
5 is provided with a step of permitting the writing of the consultation information. In addition, when performing the process of writing the diagnostic information in the diagnostic information database 35, the authentication process for the patient card 5 is performed as a previous step. In this authentication process, FIG.
As shown in (1), after transmitting a random number from the host computer device 3 to the computer terminal 1, the random number is encrypted using the key in the patient card 5, and the encrypted random number data is returned to the host computer device 3 again. If the host computer 3 decodes the random number data to return to the original random number, it is found that the data is correct, and the diagnosis information is formally stored.

Only when the result of the collation by the collating means 37 is a match, the writing permission means 38 permits the writing of the diagnostic information to the diagnostic information database 35, and the diagnostic information obtained by the current consultation is converted to the diagnostic information database 35. The medical examination information which is written in the medical record information is updated (S9).

As described above, the present invention provides a doctor card 5
It is possible to prevent fraud such as rewriting of medical information using the card 6 for patients and the card 6 for doctors.
The storage medium is not limited to the C card, and a storage medium having other specifications may be used as long as the medium has means for storing information.

Further, the present invention can be used for a system in the same hospital, and in addition, a card reader / writer 2 and a computer terminal 1 are installed in each consultation room of a plurality of hospitals and medical institutions. Computer terminal 1 may be communicably connected to a host computer 3 device installed in an information management center or the like by a communication line, and can be appropriately changed as needed.

[0027]

As described above, the chart information management system of the present invention requires a doctor's storage medium and a patient's storage medium as prerequisites when writing patient's examination information. Only on condition that the collation information stored in each storage medium matches the collation information registered in the database in advance, the doctor can write the patient's consultation information for the first time. Even if a mistake occurs, there is an effect that it is not possible to maliciously falsify a record of a diagnosis result obtained when a doctor consulted a patient in the past, a medical treatment performed on the patient, or a drug administered.

In addition, only when the control unit reads the patient-specific information from the reading device, the processing for writing the diagnosis information to the diagnosis information database is performed. It can be preferable. Further, by using an IC card as the storage medium, an IC card used in various IC card systems such as the financial industry and the distribution industry can be conveniently used in combination with the medical industry.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an outline of an overall configuration of a medical record information management system of the present invention.

FIG. 2 is a system block diagram of a chart information management system of the present invention.

FIG. 3 is a plan view of a doctor card used in the present invention.

FIG. 4 is a plan view of a patient card used in the present invention.

FIG. 5 is an explanatory diagram of a method of encrypting data registered in a medical examination information database.

FIG. 6 is a diagram illustrating a method for checking the security of data registered in a unique information database.

FIG. 7 is a diagram for explaining a method of checking whether a patient card is a correct card in the host computer device.

FIG. 8 is a flowchart showing a processing procedure of the present invention.

[Description of Signs] 1 Computer terminal 2 Card reader / writer 3 Host computer device 4 Communication line 5 Doctor card 6 Patient card 5a, 6b IC module 10, 32 Display means 11, 31 Input means 12, 34 Storage means 13, 39 Control means 33 Output means 35 Medical examination information database 36 Unique information database 37 Collation means 38 Write permission means

Claims (3)

[Claims] 1. A medical chart information management system in which a physician stores medical information of a patient in a storage device and manages the medical information. A storage means storing physician-specific information for specifying the physician, and a storage medium for the physician having an arithmetic function. A storage unit for storing patient-specific information for identifying a patient, a storage medium for a patient having an arithmetic function, a reading device for reading information stored in the storage medium, and a consultation information database for storing consultation information for a patient A doctor-specific information database in which doctor-specific information is registered in advance, and control means for specifying a writing area of consultation information from the consultation information database based on patient-specific information read from the reading device; Collating means for collating the doctor-specific information read from the doctor-specific information registered in the doctor-specific information database, Medical record information management system characterized by comprising a host computer system and a write enable means to permit only the writing process of examination information for the examination information database if they match the collation by the coupling means. 2. The medical chart information according to claim 1, wherein the control unit performs a writing process of the consultation information in the consultation information database only when the patient-specific information is read from the reading device. Management system. 3. The medical chart information management system according to claim 1, wherein the storage medium is an IC card having a storage unit and an arithmetic function.