CN108959945B

CN108959945B - Medical data sharing method and device, computer readable medium and electronic equipment

Info

Publication number: CN108959945B
Application number: CN201810735589.8A
Authority: CN
Inventors: 郭锐; 李茂材; 张建俊; 唐子超; 藏军; 张云龙
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2020-05-05
Anticipated expiration: 2038-07-06
Also published as: CN110472428A; CN108959945A; CN110472428B

Abstract

The embodiment of the invention provides a medical data sharing method and device based on a block chain, a computer readable medium and electronic equipment. The medical data sharing method comprises the following steps: constructing a block chain network by taking a plurality of medical data sharing parties as block chain link points; acquiring medical data uploaded by block link points in the block chain network; storing the medical data into the blockchain network to share the medical data in the blockchain network. The technical scheme of the embodiment of the invention ensures that a plurality of medical data sharing parties can realize the sharing of the medical data through the blockchain network, and simultaneously can ensure the safety of the medical data issued to the blockchain network due to the decentralized storage characteristic of the blockchain network, thereby realizing the safety and the controllability of the medical data.

Description

Medical data sharing method and device, computer readable medium and electronic equipment

Technical Field

The invention relates to the technical field of computers and communication, in particular to a medical data sharing method and device based on a block chain, a computer readable medium and electronic equipment.

Background

The sharing of medical data has great significance for treatment and analysis of diseases, and the sharing of medical data currently shares data information through systems, various social software or shared documents in hospitals, but the method has great barrier problems, real data sharing is difficult to realize, and the problem of data security is difficult to solve.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present invention and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for sharing medical data based on a blockchain, a computer-readable medium, and an electronic device, so that the problem of sharing medical data can be solved to at least some extent.

Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.

According to an aspect of an embodiment of the present invention, there is provided a method for sharing medical data based on a blockchain, including: constructing a block chain network by taking a plurality of medical data sharing parties as block chain link points; acquiring medical data uploaded by block link points in the block chain network; storing the medical data into the blockchain network to share the medical data in the blockchain network.

According to an aspect of an embodiment of the present invention, there is provided a blockchain-based medical data sharing apparatus including: the building unit is used for building a block chain network by taking a plurality of medical data sharing parties as block chain link points; the first acquisition unit is used for acquiring medical data uploaded by block chain link points in the block chain network; a storage unit, configured to store the medical data in the blockchain network, so as to share the medical data in the blockchain network.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: a first receiving unit, configured to receive a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key that is assigned to the first node by a second node in the blockchain network, and first medical data that is obtained from the blockchain network by the first node and encrypted by information of the second node; a first decryption unit configured to decrypt the first medical data by using the first key; and the first sending unit is used for returning the medical data obtained after decryption to the first node after the first medical data is decrypted successfully.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: a second receiving unit, configured to receive a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key that is allocated to the first node by a second node in the blockchain network, and a query condition for first medical data; the second decryption unit is used for acquiring the first medical data from the blockchain network based on the query condition and decrypting the first medical data through the first key; and the second sending unit is used for returning the medical data obtained after decryption to the first node after the first medical data is decrypted successfully.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: the second obtaining unit is used for obtaining a second key of the second node and the medical data uploaded by the second node; the encryption unit is used for encrypting the medical data uploaded by the second node through the second key to obtain the first medical data and the first key; and the third sending unit is used for returning the first key and the first medical data to the second node so as to distribute the key to the second node, and storing the first medical data into the blockchain network.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: a fourth sending unit, configured to send an authorization request to a second node when receiving a publishing request sent by a first node in the blockchain network to publish second medical data of the second node in the blockchain network; and the issuing unit is used for issuing the second medical data to the blockchain network when receiving an instruction for confirming the issuing sent by the second node.

In some embodiments of the present invention, based on the foregoing solution, the storage unit is further configured to: when the release request sent by a first node in the blockchain network is received, storing the second medical data into a storage space corresponding to a first address in the blockchain network, wherein the first address is an address which is not released publicly; and if the instruction for confirming the issuing sent by the second node is received, issuing the medical data stored in the storage space corresponding to the first address to the storage space corresponding to the second address in the block chain network so as to issue the second medical data to the block chain network.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: and the generating unit is used for generating the first address according to the public key of the first node and the public key of the second node.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: the searching unit is used for searching fourth medical data matched with the third medical data from the blockchain network according to the third medical data when the third medical data sent by the target node in the blockchain network is received; a fifth sending unit, configured to send the fourth medical data to the target node.

In some embodiments of the present invention, based on the foregoing scheme, the fifth sending unit is further configured to: sending the uploader information of the fourth medical data to the target node; and/or sending a notification message associated with the target node to an uploader of the fourth medical data.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: a detection unit for detecting authenticity of medical data stored in the blockchain network; the identification unit is used for identifying the false medical data in the blockchain network when the false medical data in the blockchain network is detected.

In some embodiments of the present invention, based on the foregoing solution, the block chain-based medical data sharing apparatus further includes: the determining unit is used for determining a target block chain node for uploading the false medical data; and the processing unit is used for limiting the authority of the target block chain node for issuing information to the block chain network or removing the target block chain node from the block chain network.

In some embodiments of the present invention, based on the foregoing solution, the block link points in the block chain network include block link point identification and/or timestamp information in the medical data distributed to the block chain network.

According to an aspect of an embodiment of the present invention, there is provided a computer readable medium, on which a computer program is stored, which when executed by a processor, implements the blockchain-based medical data sharing method as described in the above embodiment.

According to an aspect of an embodiment of the present invention, there is provided an electronic apparatus including: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the blockchain based medical data sharing method as described in the above embodiments.

In the technical solutions provided by some embodiments of the present invention, a blockchain network is constructed by using multiple medical data sharing parties as blockchain nodes, and medical data uploaded by blockchain link points in the blockchain network is acquired to store the medical data in the blockchain network, so that the multiple medical data sharing parties can be ensured to realize the sharing of the medical data through the blockchain network, and meanwhile, due to the characteristics of decentralized storage of the blockchain network, the security of the medical data issued to the blockchain network can be ensured, and the security and controllability of the medical data are realized.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 shows a schematic diagram of an exemplary system architecture of a blockchain-based medical data sharing method or a blockchain-based medical data sharing apparatus to which an embodiment of the present invention may be applied;

FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use with the electronic device to implement an embodiment of the invention;

FIG. 3 schematically shows a flow diagram of a blockchain-based medical data sharing method according to an embodiment of the invention;

FIG. 4 schematically shows a flow chart of a blockchain-based medical data sharing method according to another embodiment of the invention;

FIG. 5 schematically shows a flow chart of a blockchain-based medical data sharing method according to another embodiment of the invention;

FIG. 6 schematically shows a flow chart of a blockchain-based medical data sharing method according to another embodiment of the invention;

FIG. 7 schematically shows a flow chart of a blockchain-based medical data sharing method according to another embodiment of the invention;

FIG. 8 schematically illustrates a flow chart of a blockchain-based medical data sharing method according to another embodiment of the present invention;

FIG. 9 schematically illustrates a system block diagram of a blockchain-based medical data sharing scheme, according to an embodiment of the present invention;

FIG. 10 shows a schematic diagram of a blockchain network formed by a plurality of nodes according to one embodiment of the invention;

FIG. 11 illustrates a schematic diagram of an interaction process between each tile link and a privacy information authorization module according to an embodiment of the invention;

FIG. 12 illustrates a schematic diagram of a private information entitlement management flow, according to one embodiment of the present invention;

FIG. 13 illustrates a schematic diagram of the interaction process between various block chain nodes and an authorization management module according to one embodiment of the invention;

FIG. 14 shows a schematic diagram of an authorization management flow according to one embodiment of the invention;

FIG. 15 shows a schematic diagram of a smart push flow, according to an embodiment of the invention;

fig. 16 schematically shows a block diagram of a blockchain-based medical data sharing apparatus according to an embodiment of the present invention.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations or operations have not been shown or described in detail to avoid obscuring aspects of the invention.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

Fig. 1 shows a schematic diagram of an exemplary system architecture 100 of a blockchain-based medical data sharing method or a blockchain-based medical data sharing apparatus to which an embodiment of the present invention may be applied.

As shown in fig. 1, system architecture 100 may include

devices

101, 102, 103, network 104, and server 105. Network 104 is the medium used to provide communication links between

devices

101, 102, 103 and server 105. Network 104 may include various connection types, such as wired communication links, wireless communication links, and so forth.

It should be understood that the number of devices, networks, and servers shown in fig. 1 is merely illustrative. There may be any number of devices, networks, and servers, as desired for an implementation. For example, server 105 may be a server cluster comprised of multiple servers, or the like.

A user may use the

devices

101, 102, 103 to interact with the server 105 over the network 104 to receive or send messages or the like. The

devices

101, 102, and 103 may be server devices of medical data sharing parties, and the like. The device 101, the device 102, and the device 103 may form a blockchain network as blockchain link points, respectively, and the device 101, the device 102, and the device 103 may share the medical data based on the blockchain network.

The server 105 may be a server that provides various services. For example, when receiving first medical data sent by any blockchain node in the blockchain network, the server 105 may search for second medical data matching the first medical data from the blockchain network, and then send the second medical data to the blockchain node for reference by the blockchain node. The first medical data may include disease information of a patient, and the second medical data may be information such as a treatment plan associated with a disease of the patient.

For another example, the server 105 may detect authenticity of medical data stored in the blockchain network, identify false medical data if the existence of the false medical data in the blockchain network is detected, and may limit the right of the blockchain node uploading the false medical data to issue information into the blockchain network again, or remove the blockchain node from the blockchain network.

For another example, the server 105 may also provide a data encryption service, specifically, before the blockchain node issues the medical data to the blockchain network, the private key of the blockchain node and the medical data to be issued may be sent to the server 105, and then the server 105 may encrypt the medical data according to the private key of the blockchain node, and then return the encrypted data to the blockchain node, and the blockchain node issues the encrypted data to the blockchain network. In addition, if other blockchain nodes acquire the encrypted data from the blockchain network, the encrypted data and the corresponding decryption key may be sent to the server 105 so that the server 105 can decrypt the encrypted data.

FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use with the electronic device to implement an embodiment of the invention.

It should be noted that the computer system 200 of the electronic device shown in fig. 2 is only an example, and should not bring any limitation to the functions and the scope of the application of the embodiment of the present invention.

As shown in fig. 2, the computer system 200 includes a Central Processing Unit (CPU)201 that can perform various appropriate actions and processes in accordance with a program stored in a Read-Only Memory (ROM) 202 or a program loaded from a storage section 208 into a Random Access Memory (RAM) 203. In the RAM 203, various programs and data necessary for system operation are also stored. The CPU 201, ROM202, and RAM 203 are connected to each other via a bus 204. An Input/Output (I/O) interface 205 is also connected to bus 204.

The following components are connected to the I/O interface 205: an input portion 206 including a keyboard, a mouse, and the like; an output section 207 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 208 including a hard disk and the like; and a communication section 209 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like. The communication section 209 performs communication processing via a network such as the internet. A drive 210 is also connected to the I/O interface 205 as needed. A removable medium 211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 210 as necessary, so that a computer program read out therefrom is mounted into the storage section 208 as necessary.

In particular, according to an embodiment of the present invention, the processes described below with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the invention include a computer program product comprising a computer program embodied on a computer-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 209 and/or installed from the removable medium 211. The computer program executes various functions defined in the system of the present application when executed by a Central Processing Unit (CPU) 201.

It should be noted that the computer readable medium shown in the embodiment of the present invention may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method as described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 3 to 8.

The implementation details of the technical scheme of the embodiment of the invention are explained in detail as follows:

fig. 3 schematically shows a flowchart of a blockchain-based medical data sharing method according to an embodiment of the present invention, which is applicable to the electronic device described in the foregoing embodiments. Referring to fig. 3, the medical data sharing method at least includes steps S310 to S330, which are described in detail as follows:

in step S310, a blockchain network is constructed using a plurality of medical data sharing parties as blockchain link points.

In one embodiment of the invention, the medical data sharing parties may include hospitals, research institutions, public welfare institutions, individuals, and the like. Each individual participating in medical data sharing may be used as a blockchain node to construct a blockchain network, or all individuals participating in medical data sharing may be used as a whole to construct a blockchain network, for example, a third-party platform is provided, and all individuals participating in medical data sharing access the third-party platform to implement data sharing.

In step S320, medical data uploaded by the block link points in the block chain network is acquired.

In an embodiment of the present invention, an information entry interface may be set for each blockchain node (i.e., each medical data sharing party) in the blockchain network, and then a user may upload medical data to be published to the blockchain network based on the information entry interface. The medical data may include medical record information, treatment institution information, information of the treating doctor, and the like.

In step S330, the medical data is stored in the blockchain network to share the medical data in the blockchain network.

The technical scheme of the embodiment shown in fig. 3 can ensure that a plurality of medical data sharing parties can realize the sharing of medical data through the blockchain network, and simultaneously can ensure the security of the medical data issued to the blockchain network due to the decentralized storage characteristic of the blockchain network, thereby realizing the security and the controllability of the medical data.

As shown in fig. 4, a method for sharing medical data based on a blockchain according to another embodiment of the present invention includes the steps of:

step S410, receiving a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key distributed to the first node by a second node in the blockchain network, and first medical data encrypted by information of the second node and obtained from the blockchain network by the first node.

In an embodiment of the present invention, the first node may acquire the first medical data from the blockchain network according to a requirement, and further upload the acquired first medical data and the first key allocated to the second node to the medical data sharing device, so as to decrypt the first medical data according to the first key allocated to the second node.

It should be noted that, before that, the medical data sharing apparatus may obtain a second key of the second node and medical data uploaded by the second node, and then encrypt the medical data uploaded by the second node according to the second key to obtain the first medical data and the first key, and then return the first key and the first medical data to the second node for the second node to perform key distribution, and store the first medical data in the blockchain network.

In an embodiment of the present invention, the second key may be a private key of the second node, and the first key may be a sub-key obtained through a threshold secret sharing scheme. The threshold secret sharing scheme divides the encrypted ciphertext information into n meaningless sub-keys, and the ciphertext information can be recovered only by possessing at least k sub-keys, so that the data security can be improved.

Step S420, decrypting the first medical data by the first key.

And step S430, if the first medical data is successfully decrypted, returning the decrypted medical data to the first node.

The technical scheme of the embodiment shown in fig. 4 enables the medical data sharing device to realize the encryption and decryption processes of the data, and improves the safety of the medical data while ensuring that the medical data can be shared.

As shown in fig. 5, a method for sharing medical data based on a blockchain according to another embodiment of the present invention includes the steps of:

step S510, receiving a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key distributed to the first node by a second node in the blockchain network and a query condition for first medical data.

In an embodiment of the present invention, the first node may send, to the medical data sharing device, an inquiry condition for the first medical data according to a requirement, and upload the first key allocated by the second node to the medical data sharing device, so that the medical data sharing device acquires the first medical data from the blockchain network according to the inquiry condition, and decrypts the first medical data based on the first key allocated by the second node.

Step S520, acquiring the first medical data from the blockchain network based on the query condition, and decrypting the first medical data by using the first key.

Step S530, if the first medical data is decrypted successfully, returning the decrypted medical data to the first node.

The technical scheme of the embodiment shown in fig. 5 enables the medical data sharing device to realize the encryption and decryption processes of the data, and improves the safety of the medical data while ensuring that the medical data can be shared.

As shown in fig. 6, a method for sharing medical data based on a blockchain according to another embodiment of the present invention includes the steps of:

step S610, if a release request for releasing the second medical data of the second node to the blockchain network, which is sent by the first node in the blockchain network, is received, an authorization request is sent to the second node.

Step S620, if an instruction for confirming the issue sent by the second node is received, the second medical data is issued to the blockchain network.

In an embodiment of the present invention, when a publishing request sent by the first node to publish the second medical data to the blockchain network is received, the second medical data may be stored in a storage space corresponding to a first address in the blockchain network, where the first address is an address that is not published publicly. For example, the storage space corresponding to the first address may be an intermediate account, and the intermediate account is accessible only by the first node and the second node, and is not accessible by other nodes in the blockchain network.

In one embodiment of the invention, the first address may be generated from a public key of the first node and a public key of the second node.

In one embodiment of the present invention, when receiving an instruction sent by a second node to confirm issuance, the medical data stored in the storage space corresponding to the first address may be issued into the storage space corresponding to the second address in the blockchain network, so as to issue the second medical data into the blockchain network. For example, the memory space corresponding to the second address may be a shared account, and all nodes in the blockchain network may access the shared account.

The technical solution of the embodiment shown in fig. 6 enables the first node in the blockchain network to acquire authorization of the second node before the first node issues the second medical data of the second node to the blockchain network, thereby ensuring privacy and security of the medical data.

As shown in fig. 7, a method for sharing medical data based on a blockchain according to another embodiment of the present invention includes the steps of:

step S710, if third medical data sent by a target node in the blockchain network is received, searching fourth medical data matched with the third medical data from the blockchain network according to the third medical data.

In an embodiment of the present invention, the third medical data may be, for example, disease information of a patient, and the fourth medical data may be information such as a treatment plan associated with a disease of the patient.

Step S720, sending the fourth medical data to the target node.

In an embodiment of the present invention, the uploader information of the fourth medical data may be further sent to the target node; and/or sending a notification message associated with the target node to an uploader of the fourth medical data. The notification message may be, for example, a message that the target node has acquired the fourth medical data, that the target node needs medical assistance, or the like.

The technical scheme of the embodiment shown in fig. 7 enables pushing of medical data to be automatically realized based on the medical data stored in the blockchain network, so that the existing medical data is utilized to the maximum extent to improve the effectiveness of treatment, and a reference value is provided for medical research.

As shown in fig. 8, a method for sharing medical data based on a blockchain according to another embodiment of the present invention includes the steps of:

step S810, detecting authenticity of medical data stored in the blockchain network.

Step S820, if it is detected that false medical data exists in the blockchain network, identifying the false medical data in the blockchain network.

In this embodiment, by identifying spurious medical data in the blockchain network, a hint can be made when data is acquired at blockchain nodes to avoid propagation of spurious medical data in the blockchain network.

In an embodiment of the present invention, a target blockchain node for uploading false medical data may also be determined, and then the right of the target blockchain node to issue information to the blockchain network is limited, or the target blockchain node is removed from the blockchain network, so as to ensure that the data in the blockchain network is accurate.

In an embodiment of the invention, the medical data which is distributed to the blockchain network by the blockchain nodes in the blockchain network comprises the blockchain node identification and/or the timestamp information, so that the medical data in the blockchain network can be traced, and the safety and the controllability of the medical data are realized.

The following describes details of implementation of the technical solution according to the embodiment of the present invention with reference to fig. 9 to 15:

at present, for serious diseases, especially rare diseases (rare diseases refer to diseases with extremely low incidence rate, and the rare diseases are also called as 'orphan disease') because the number of cases of contact of each region/institution is very small, effective reference data is lacked when treatment is carried out. Based on this, according to the technical scheme of the embodiment of the invention, by constructing the blockchain network, each organization or individual can conveniently know treatment precedent of diseases and an effective treatment scheme which can be referred to, and can mutually benefit and assist, and corresponding medical data is stored in the blockchain network to be referred to and researched in the medical field. Meanwhile, after medical data are shared in the blockchain network, dispersed circles or individuals can be really linked together due to the fact that the medical data are not limited to a specific social group and a limited circle of friends, the effects of one-point release and multipoint synchronization, and simultaneous acquisition and broadcasting of multiple channels are achieved, further the medical data can be utilized to the maximum extent, the effectiveness of disease treatment is improved, and reference values can be provided for future medical research. In addition, by comparing and pushing medical data in the blockchain network, a treatment scheme can be provided for the same patient with similar successful cases in a shorter time, and valuable treatment time is saved.

Fig. 9 schematically shows a system block diagram of a blockchain-based medical data sharing scheme according to an embodiment of the present invention, which mainly includes: the system comprises an information entry platform client 901, a management background 902, an external access layer 903, a business logic layer 904, a block chain storage layer 905, a business database 906, an account management module 907, a privacy information authorization module 908, an authorization management module 909 and an intelligent push module 910.

The information entry platform client 901 is used for providing entry services of relevant information such as medical data, for example, a patient, a medical institution and the like can realize entry of medical data through the information entry platform client 901.

The management background 902 is configured to monitor and manage a working state of the entire blockchain network, and specifically, when detecting that information recorded at some blockchain link points is not real, the management background 902 may limit the nodes from publishing information to the blockchain network or kick the nodes out of the blockchain network.

The external access layer 903 is configured to provide an API (Application programming interface) interface based on the https protocol for peripheral calling, and each platform may build a management background itself or may access the cloud management background in a unified manner to monitor and manage the working state of the entire block chain. The private key of the user can be uploaded to the private key escrow service to be stored, and a mailbox or a password can be used for extracting the private key of the user.

The service logic layer 904 is used to implement service logic, and may provide a system interface as shown in table 1 for corresponding information processing, for example.

TABLE 1

The blockchain storage layer 905 is used to construct a blockchain network to share medical data. Specifically, as shown in fig. 10, node 1, node 2, node 3, and node 4 form a consensus network of blockchain, the number of nodes in the figure is merely an example, and any number of blockchain nodes may be provided in other embodiments of the present invention. Wherein, the node 1 can be a personal user node, the node 2 can be a public institution node, the node 3 can be a hospital node, the node 4 can be other medical institution nodes, and the like.

The service database 906 is used to store service-related data.

The account management module 907 is used to generate an account address (such as generating an intermediate account address, a shared account address, etc.), and specifically, the user may upload the user's public key and uid to the account management module 907 to cause the account management module 907 to generate the account address.

The privacy information authorization module 908 is configured to perform encryption, and specifically, if the patient a wants to protect private information, the privacy information authorization module 908 may encrypt the information based on a threshold secret sharing scheme, and then return N sub-key strings, and the patient a may distribute the sub-key strings, and an individual or a medical institution who acquires the sub-key strings may decrypt the private information of the patient a. The interaction process between each blockchain node and the privacy information authorization module is shown in fig. 11, that is, the patient a publishes the encrypted information to the blockchain network (information uplink), and then authorizes the patient B and the hospital to review through the privacy information authorization module 908.

In an embodiment of the present invention, as shown in fig. 12, a private information authorization management process according to an embodiment of the present invention includes the following steps:

step S1201, the patient A sends the privacy information needing to be encrypted to the privacy information authorization module, and the privacy information authorization module encrypts the privacy information.

Step S1202, after the privacy information authorization module encrypts the privacy information of the patient a, the encrypted information and the obtained sub-key string are returned to the patient a. Patient a, after receiving the subkey string, may be distributed to patient B and medical institution a (for example only).

In step S1203, the patient a issues the encrypted information to the blockchain platform.

In step S1204, the medical institution a queries the patient a for information from the blockchain platform.

In step S1205, the blockchain platform returns the information queried by the medical institution a to the medical institution a.

In step S1206, the medical institution a requests the privacy information authorization module to decrypt the encrypted information of the patient a. Specifically, the medical institution a may send the obtained encrypted information of the patient a and the subkey string distributed by the patient a to the private information authorization module for decryption.

Step S1207, the privacy information authorization module returns the decrypted information to the medical institution a.

In step S1208, medical facility B queries the patient a for information from the blockchain platform.

Step S1209, the blockchain platform returns the information queried by the medical institution B to the medical institution B.

In step S1210, the medical institution B requests the privacy information authorization module to decrypt the encrypted information of the patient a. Specifically, the medical institution B may transmit the obtained encrypted information of the patient a to the privacy information authorization module for decryption.

In step S1211, since the medical institution B does not acquire the subkey string assigned to the patient a, the privacy information authorization module returns the failed prompt information to the medical institution B.

The authorization management module 909 is used for authorization management, and specifically, for example, medical institution a needs to issue information of patient a, and then needs to be authorized by a. If the medical institution a wants to release the information of the patient a, the information of the patient a may be stored in an intermediate account in the blockchain network, the address of the intermediate account is an address generated by the public key of the medical institution a and the public key of the patient a, and the information of the intermediate account can only be queried by the medical institution a and the patient a. If the patient A authorizes the medical institution A to issue the information of the patient A, the information of the patient A is issued to an information sharing account through an intermediate account, the information sharing account is an open query for all users, all nodes in the block chain network can query the information, and if the account A does not perform signature authorization, the information of the patient A cannot be issued, namely cannot be transferred to the sharing account. In one embodiment of the present invention, the interaction process between each block link point and the authorization management module 909 is shown in fig. 13, i.e., the authorization management module 909 is used to manage the authorization of the patient a for the hospital.

In an embodiment of the present invention, as shown in fig. 14, an authorization management process according to an embodiment of the present invention includes the following steps:

in step S1401, patient a publishes personal information into the blockchain platform.

In step S1402, medical institution A queries the patient A for information from the blockchain platform.

Step S1403, the blockchain platform returns the information queried by the medical institution a to the medical institution a.

In step S1404, medical institution a uploads medical record information for patient a to an intermediate account in the blockchain platform.

Step S1405, the blockchain platform returns feedback information of successful upload to the medical institution a.

In step S1406, the blockchain platform notifies the medical institution a of the notification message of the medical record information uploaded by the medical institution a, which requires the authorization of the patient a.

In step S1407, the patient a returns an instruction to the blockchain platform to confirm the release of the medical record information.

In step S1408, the blockchain platform publishes the medical record information of patient a from the intermediate account to the information sharing account.

Step S1409, the blockchain platform returns feedback information of successful delivery to patient a.

The intelligent pushing module 910 is configured to perform information pushing, specifically, for example, after a patient or a medical institution inputs case information, the intelligent pushing module 910 searches for a relevant case according to the matching rule, and feeds back a suitable treatment scheme, information of the medical institution and information of an attending physician.

In an embodiment of the present invention, as shown in fig. 15, an intelligent pushing process according to an embodiment of the present invention includes the following steps:

in step S1501, patient A publishes personal information into the blockchain platform for therapeutic assistance.

Step S1502, the blockchain platform performs detection in the information warehouse, and queries related medical data (e.g., treatment plans of related cases).

In step S1503, the blockchain platform retrieves a case that the medical institution a has a successful treatment of the relevant case, and pushes the request for help to the medical institution a.

In step S1504, the blockchain platform returns the retrieved relevant information (e.g., treatment protocol information, information of medical institution a, etc.) to patient a.

Further, in one embodiment of the present invention, the formats of personal information, medical institution information, and medical record information entered in the system shown in fig. 9 are shown in tables 2, 3, and 4, respectively.

TABLE 2

As shown in table 2, the personal information may include: unique identification, entry time, personal information, status, description, public key, etc.

TABLE 3

As shown in table 3, the medical institution information may include: unique identification, medical institution name, level, address, status, description, public key, etc.

TABLE 4

As shown in table 4, the medical record information may include: unique identification, patient unique identification, time of entry, case information, status, description, public key, etc.

According to the technical scheme of the embodiment of the invention, the information is transmitted to all nodes in the block chain network at the second level after being issued by one node in the block chain network, so that each issuing channel can synchronously obtain the latest information; because the information is recorded and updated with the private key signature and the timestamp, the updating history of the whole information can be traced; meanwhile, any platform can be a node in the block chain to be added into the whole network (such as a alliance chain network can be constructed) after the agreement is met, and the openness of medical data sharing is improved. In addition, the characteristic of decentralized storage of the block chain network is utilized, so that data can be prevented from being tampered, and the safety and the controllability of information are effectively realized.

The following describes an embodiment of the apparatus of the present invention, which can be used to execute the method for sharing medical data based on blockchain in the above embodiment of the present invention. For details that are not disclosed in the embodiments of the apparatus of the present invention, please refer to the embodiments of the method for sharing medical data based on blockchains of the present invention.

Referring to fig. 16, a blockchain-based medical data sharing apparatus 1600 according to an embodiment of the present invention includes: a building unit 1601, a first obtaining unit 1602, and a storing unit 1603.

The constructing unit 1601 is configured to construct a block chain network with a plurality of medical data sharing parties as block chain link points; the first obtaining unit 1602 is configured to obtain medical data uploaded by a block link point in the block link network; the storage unit 1603 is used for storing the medical data into the blockchain network so as to share the medical data in the blockchain network.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: a first receiving unit, configured to receive a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key that is assigned to the first node by a second node in the blockchain network, and first medical data that is obtained from the blockchain network by the first node and encrypted by information of the second node; a first decryption unit configured to decrypt the first medical data by using the first key; and the first sending unit is used for returning the medical data obtained after decryption to the first node after the first medical data is decrypted successfully.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: a second receiving unit, configured to receive a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key that is allocated to the first node by a second node in the blockchain network, and a query condition for first medical data; the second decryption unit is used for acquiring the first medical data from the blockchain network based on the query condition and decrypting the first medical data through the first key; and the second sending unit is used for returning the medical data obtained after decryption to the first node after the first medical data is decrypted successfully.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: the second obtaining unit is used for obtaining a second key of the second node and the medical data uploaded by the second node; the encryption unit is used for encrypting the medical data uploaded by the second node through the second key to obtain the first medical data and the first key; and the third sending unit is used for returning the first key and the first medical data to the second node so as to distribute the key to the second node, and storing the first medical data into the blockchain network.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: a fourth sending unit, configured to send an authorization request to a second node when receiving a publishing request sent by a first node in the blockchain network to publish second medical data of the second node in the blockchain network; and the issuing unit is used for issuing the second medical data to the blockchain network when receiving an instruction for confirming the issuing sent by the second node.

In an embodiment of the present invention, the storage unit 1603 is further configured to: when the release request sent by a first node in the blockchain network is received, storing the second medical data into a storage space corresponding to a first address in the blockchain network, wherein the first address is an address which is not released publicly; and if the instruction for confirming the issuing sent by the second node is received, issuing the medical data stored in the storage space corresponding to the first address to the storage space corresponding to the second address in the block chain network so as to issue the second medical data to the block chain network.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: and the generating unit is used for generating the first address according to the public key of the first node and the public key of the second node.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: the searching unit is used for searching fourth medical data matched with the third medical data from the blockchain network according to the third medical data when the third medical data sent by the target node in the blockchain network is received; a fifth sending unit, configured to send the fourth medical data to the target node.

In an embodiment of the present invention, the fifth sending unit is further configured to: sending the uploader information of the fourth medical data to the target node; and/or sending a notification message associated with the target node to an uploader of the fourth medical data.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: a detection unit for detecting authenticity of medical data stored in the blockchain network; the identification unit is used for identifying the false medical data in the blockchain network when the false medical data in the blockchain network is detected.

In an embodiment of the present invention, the block chain-based medical data sharing apparatus 1600 further includes: the determining unit is used for determining a target block chain node for uploading the false medical data; and the processing unit is used for limiting the authority of the target block chain node for issuing information to the block chain network or removing the target block chain node from the block chain network.

In one embodiment of the invention, the block chain node identification and/or the time stamp information are contained in the medical data distributed to the block chain network by the block chain node in the block chain network.

It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the invention. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiment of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiment of the present invention.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A method for sharing medical data based on a blockchain is characterized by comprising the following steps:

constructing a block chain network by taking a plurality of medical data sharing parties as block chain link points;

acquiring medical data uploaded by block link points in the block chain network;

storing the medical data into the blockchain network to share the medical data in the blockchain network;

wherein the medical data sharing method further comprises:

if a release request sent by a first node in the blockchain network for releasing second medical data of a second node into the blockchain network is received, storing the second medical data into a storage space corresponding to a first address in the blockchain network, and sending an authorization request to the second node, wherein the first address is generated according to a public key of the first node and a public key of the second node;

and if an instruction for confirming the issuing sent by the second node is received, issuing the medical data stored in the storage space corresponding to the first address to the storage space corresponding to the second address in the block chain network so as to issue the second medical data to the block chain network.

2. The blockchain-based medical data sharing method according to claim 1, further comprising:

receiving a data acquisition request sent by a first node in the blockchain network, wherein the data acquisition request comprises a first key distributed to the first node by a second node in the blockchain network and first medical data which is obtained from the blockchain network by the first node and encrypted by information of the second node;

decrypting the first medical data by the first key;

and if the first medical data is successfully decrypted, returning the medical data obtained after decryption to the first node.

3. The blockchain-based medical data sharing method according to claim 1, further comprising:

receiving a data acquisition request sent by a first node in the blockchain network, wherein the data acquisition request comprises a first key distributed to the first node by a second node in the blockchain network and a query condition aiming at first medical data;

acquiring the first medical data from the blockchain network based on the query condition, and decrypting the first medical data through the first secret key;

4. The blockchain-based medical data sharing method according to claim 2 or 3, further comprising, before receiving the data acquisition request sent by the first node in the blockchain network:

acquiring a second key of the second node and medical data uploaded by the second node;

encrypting the medical data uploaded by the second node through the second key to obtain the first medical data and the first key;

and returning the first key and the first medical data to the second node for key distribution by the second node, and storing the first medical data in the blockchain network.

5. The blockchain-based medical data sharing method according to claim 1, further comprising:

if third medical data sent by a target node in the blockchain network is received, searching fourth medical data matched with the third medical data from the blockchain network according to the third medical data;

transmitting the fourth medical data to the target node.

6. The blockchain-based medical data sharing method according to claim 5, further comprising:

sending the uploader information of the fourth medical data to the target node; and/or

Sending a notification message associated with the target node to an uploader of the fourth medical data.

7. The blockchain-based medical data sharing method according to claim 1, further comprising:

detecting authenticity of medical data stored in the blockchain network;

and if the false medical data exists in the block chain network, identifying the false medical data in the block chain network.

8. The blockchain-based medical data sharing method according to claim 7, further comprising:

determining a target blockchain node for uploading the false medical data;

and limiting the permission of the target block chain node for issuing information to the block chain network, or removing the target block chain node from the block chain network.

9. The method for sharing medical data based on block chains according to any one of claims 1 to 3 and 5 to 8, wherein the block chain link points in the block chain network are distributed to the medical data of the block chain network, and the medical data comprise block chain link point identification and/or time stamp information.

10. A blockchain-based medical data sharing apparatus, comprising:

the building unit is used for building a block chain network by taking a plurality of medical data sharing parties as block chain link points;

the first acquisition unit is used for acquiring medical data uploaded by block chain link points in the block chain network;

a storage unit, configured to store the medical data in the blockchain network, so as to share the medical data in the blockchain network;

a fourth sending unit, configured to, when receiving a publishing request sent by a first node in the blockchain network to publish second medical data of a second node in the blockchain network, store the second medical data in a storage space corresponding to a first address in the blockchain network, and send an authorization request to the second node, where the first address is generated according to a public key of the first node and a public key of the second node;

and the issuing unit is used for issuing the medical data stored in the storage space corresponding to the first address to the storage space corresponding to the second address in the blockchain network so as to issue the second medical data to the blockchain network when receiving an instruction which is sent by the second node and confirms the issuing.

11. The blockchain-based medical data sharing apparatus according to claim 10, further comprising:

a first receiving unit, configured to receive a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key that is assigned to the first node by a second node in the blockchain network, and first medical data that is obtained from the blockchain network by the first node and encrypted by information of the second node;

a first decryption unit configured to decrypt the first medical data by using the first key;

and the first sending unit is used for returning the medical data obtained after decryption to the first node after the first medical data is decrypted successfully.

12. The blockchain-based medical data sharing apparatus according to claim 10, further comprising:

a second receiving unit, configured to receive a data acquisition request sent by a first node in the blockchain network, where the data acquisition request includes a first key that is allocated to the first node by a second node in the blockchain network, and a query condition for first medical data;

the second decryption unit is used for acquiring the first medical data from the blockchain network based on the query condition and decrypting the first medical data through the first key;

and the second sending unit is used for returning the medical data obtained after decryption to the first node after the first medical data is decrypted successfully.

13. The blockchain-based medical data sharing apparatus according to claim 11 or 12, further comprising:

the second obtaining unit is used for obtaining a second key of the second node and the medical data uploaded by the second node;

the encryption unit is used for encrypting the medical data uploaded by the second node through the second key to obtain the first medical data and the first key;

and the third sending unit is used for returning the first key and the first medical data to the second node so as to distribute the key to the second node, and storing the first medical data into the blockchain network.

14. The blockchain-based medical data sharing apparatus according to claim 10, further comprising:

the searching unit is used for searching fourth medical data matched with the third medical data from the blockchain network according to the third medical data when the third medical data sent by the target node in the blockchain network is received;

a fifth sending unit, configured to send the fourth medical data to the target node.

15. The blockchain-based medical data sharing apparatus according to claim 14, wherein the fifth transmitting unit is further configured to:

16. The blockchain-based medical data sharing apparatus according to claim 10, further comprising:

a detection unit for detecting authenticity of medical data stored in the blockchain network;

the identification unit is used for identifying the false medical data in the blockchain network when the false medical data in the blockchain network is detected.

17. The blockchain-based medical data sharing apparatus according to claim 16, further comprising:

the determining unit is used for determining a target block chain node for uploading the false medical data;

and the processing unit is used for limiting the authority of the target block chain node for issuing information to the block chain network or removing the target block chain node from the block chain network.

18. The device for sharing medical data based on blockchain according to any one of claims 10 to 12 and 14 to 17, wherein the blockchain link points in the blockchain network are distributed to the medical data of the blockchain network, and the medical data of the blockchain network contain blockchain link point identification and/or timestamp information.

19. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out a blockchain-based medical data sharing method according to any one of claims 1 to 9.

20. An electronic device, comprising:

one or more processors;

storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the blockchain based medical data sharing method according to any one of claims 1 to 9.