Prosthesis data management method and system

Abstract

The present invention discloses a prosthesis data management method and system, which belongs to the field of robot data processing technology. The method includes: aligning prostheses of different models to a coordinate system; collecting spatial information of the osteotomy surface position and contact points of the prosthesis to form the osteotomy surface data and contact point data of the prosthesis; obtaining the meta-information data and other attribute data of the prosthesis, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta-information data and other attribute data. Through the processing scheme disclosed in the present invention, complete information can be provided for surgical evaluation in computer surgery, so that the computer system can conveniently evaluate the quality of the surgical plan. At the same time, the unified data format can improve the interoperability of the computer-assisted system, so that the computer-assisted system can support prostheses from different manufacturers. Allowing doctors to adjust the prosthesis selection without adjusting the surgical plan.

Description

Technical Field

[0001] The present disclosure relates to the field of robot data processing technology, and in particular to a prosthesis data management method and system. Background Art

[0002] After orthopedic joint replacement surgery, the prosthesis can be used in the patient's body for up to ten years. However, currently about 25% of prosthesis implants have various adverse events and medical accidents, such as premature aging, prosthesis shedding, prosthesis abnormal noise, etc., which cause patients to need secondary surgery, which imposes a heavy burden on patients' quality of life and medical insurance payment. Therefore, it is extremely urgent to analyze the causes of prosthesis implant surgery accidents. However, due to the complexity of the causes, it is very difficult to implement. The main reasons include: unreasonable surgical plan, non-standard surgical operation, differences in patient living habits, and quality problems of the prosthesis itself. With the emergence of computer-assisted surgical systems such as surgical navigation and surgical robots, it is possible to record high-quality data in detail and efficiently. However, in current clinical applications, there is still a lack of a scientific and effective data governance and analysis method for a large number of data from different sources and types. For joint prostheses, usually only the computer three-dimensional model (CAD) of the prosthesis can be obtained, which is difficult to be directly used by the computer-assisted system. The main problems are: first, the computer-assisted system needs to analyze the effect of the surgery, mainly including 1) joint stability 2) postoperative lower limb force line and inclination angle 3) surgical osteotomy; second, doctors hope that the prosthesis is interchangeable. Once the doctor has determined the surgical plan, he or she can adjust the prosthesis selection without having to recalculate the surgical plan based on the new prosthesis. Summary of the invention

[0003] In view of this, the embodiments of the present disclosure provide a method and system for prosthetic data management to at least partially solve the problems existing in the prior art.

[0004] In a first aspect, an embodiment of the present disclosure provides a method for managing prosthetic data, including:

[0005] By setting a three-dimensional space coordinate system, different types of prostheses are uniformly aligned to the coordinate system;

[0006] In the coordinate system, spatial information of the osteotomy surface position and contact points of the prosthesis is collected to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data includes coordinates of the plane element point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point;

[0007] The meta-information data and other attribute data of the prosthesis are obtained so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta-information data and other attribute data.

[0008] According to a specific implementation of the embodiment of the present disclosure, the three-dimensional space coordinate system is set to align prostheses of different models to the coordinate system, including:

[0009] For femoral prostheses, the distal osteotomy plane of the femoral prosthesis is defined as a horizontal plane; using this as a standard, the force line of the prosthesis can be aligned, and when the prosthesis is replaced, the force line and the distal osteotomy amount can be kept unchanged.

[0010] In the horizontal plane, the intersection points of the axes of the two femoral prosthesis intramedullary stems and the horizontal plane are marked as A and B, respectively, and the midpoint of the line segment AB is defined as the coordinate origin CSO;

[0011] The straight line passing through the coordinate origin CSO and perpendicular to AB is defined as the Y axis, and the positive direction points to the front of the femoral prosthesis;

[0012] The straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis, with the positive direction pointing above the femoral prosthesis; the X axis is determined according to the right-hand rule.

[0013] Using this coordinate system, the internal and external rotation angles will not change when the prosthesis is replaced.

[0014] According to a specific implementation of the embodiment of the present disclosure, the three-dimensional space coordinate system is set to align different types of prostheses to the coordinate system, including:

[0015] For tibial prostheses, the tibial tray osteotomy plane is defined as a horizontal plane; using this standard will not change the force line, the amount of osteotomy, or the gap between the femur and tibia.

[0016] In the horizontal plane, the intersection of the axis of the tibial intramedullary stem and the horizontal plane is defined as the coordinate origin CSO; the projection of the axis of the tibial intramedullary stem in the horizontal plane is defined as the Y axis, with the positive direction pointing forward;

[0017] The straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis, with the positive direction pointing upwards;

[0018] Determine the X-axis using the right-hand rule.

[0019] According to a specific implementation of the embodiment of the present disclosure, in the coordinate system, spatial information collection is performed on the osteotomy surface position and contact points of the prosthesis to form osteotomy surface data and contact point data of the prosthesis, including:

[0020] For the femoral prosthesis, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur, and the tibial cutting plane are selected as the osteotomy plane of the femur for data collection to form the osteotomy plane data of the femur.

[0021] According to a specific implementation of the embodiment of the present disclosure, in the coordinate system, spatial information collection is performed on the osteotomy surface position and contact points of the prosthesis to form osteotomy surface data and contact point data of the prosthesis, including:

[0022] Data collection is performed on the medial condyle registration point and the lateral condyle registration point at the contact point of the inner and outer joints of the femoral prosthesis to form the contact point data of the femoral prosthesis. The contact point is used to calculate the inner and outer gaps and evaluate the stability of the joint.

[0023] According to a specific implementation of the embodiment of the present disclosure, the step of obtaining the meta information data and other attribute data of the prosthesis includes:

[0024] Based on the manufacturer information, model information and certification and listing information of the prosthesis, meta-information data of the prosthesis is formed.

[0025] According to a specific implementation of the embodiment of the present disclosure, the step of obtaining the meta information data and other attribute data of the prosthesis includes:

[0026] Based on the material, color and appearance information of the prosthesis joint, other attribute data of the prosthesis are formed.

[0027] According to a specific implementation of the embodiment of the present disclosure, the osteotomy surface data, the contact point data, the meta information data and other attribute data are used to form the prosthesis management data, including:

[0028] For the femoral prosthesis model, the management data includes the normal of the front end cutting plane of the femoral prosthesis, the normal of the rear end cutting plane of the femoral prosthesis, the origin coordinates of the front end cutting plane, the color, the medial condyle alignment point, the femoral three-dimensional prosthesis model contains multiple triangular plane vertex coordinates and their plane indexes, the lateral condyle alignment point, the origin coordinates of the rear end cutting plane and the prosthesis model.

[0029] According to a specific implementation of the embodiment of the present disclosure, the prosthesis management data is formed based on the osteotomy surface data, the contact point data, the meta information data and other attribute data, and further includes:

[0030] For the tibial prosthesis model, the management data includes the tibial cutting plane normal, the element coordinates and color of the tibial prosthesis cutting plane, the coordinates of multiple triangle plane vertices contained in the tibial three-dimensional prosthesis model and their plane index, and the prosthesis model.

[0031] In a second aspect, the present disclosure provides a prosthesis data management system, including:

[0032] A setting module, used for aligning different types of prostheses to the three-dimensional space coordinate system by setting the three-dimensional space coordinate system;

[0033] An acquisition module is used to acquire spatial information of the osteotomy surface position and contact points of the prosthesis in the coordinate system to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data includes coordinates of the plane element point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point;

[0034] A management module is used to obtain the meta-information data and other attribute data of the prosthesis, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta-information data and other attribute data.

[0035] In a third aspect, an embodiment of the present disclosure further provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the prosthesis data management method of the aforementioned first aspect or any implementation of the first aspect.

[0036] In a fourth aspect, an embodiment of the present disclosure further provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions, which, when executed by a computer, enable the computer to execute the prosthesis data management method in the aforementioned first aspect or any implementation of the first aspect.

[0037] The prosthesis data management scheme in the disclosed embodiment includes setting a three-dimensional spatial coordinate system to uniformly align prostheses of different models to the coordinate system; in the coordinate system, spatial information collection of the osteotomy surface position and contact points of the prosthesis is performed to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data includes the coordinates of the plane meta-point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point; the meta-information data and other attribute data of the prosthesis are obtained, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta-information data and other attribute data. Through the processing scheme disclosed in the present invention, the heterogeneous data contained in the prosthesis can be collected to facilitate subsequent query and management. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A flow chart of a prosthesis data management method provided in an embodiment of the present disclosure;

[0040] Figure 2 A femoral prosthesis spatial coordinate system provided by the embodiment of the present disclosure;

[0041] Figure 3 A tibial prosthesis spatial coordinate system provided for an embodiment of the present disclosure;

[0042] Figure 4 A schematic diagram of a contact point provided in an embodiment of the present disclosure;

[0043] Figure 5 Another contact point schematic diagram provided for an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0045] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0046] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0047] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0048] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0049] The embodiment of the present disclosure provides a method for managing prosthetic data. The method for managing prosthetic data provided in the embodiment can be executed by a computing device, which can be implemented as software or a combination of software and hardware, and which can be integrated in a server, a client, etc.

[0050] See also Figure 1 The method for managing prosthetic data in the embodiment of the present disclosure may include the following steps:

[0051] S101, by setting a three-dimensional space coordinate system, aligning prostheses of different models to the coordinate system.

[0052] The spatial coordinate system of the femoral prosthesis is Figure 2 As shown in the figure, all different types of prostheses must be aligned to a unified coordinate system. Then, in the unified coordinate system, the database records the data of its three-dimensional model. The prosthesis space coordinate system is described as follows:

[0053] Table 1 Femoral prosthesis spatial coordinate system

[0054]

[0055] In addition, it is necessary to establish the tibial prosthesis spatial coordinate system, such as Figure 3 shown.

[0056] Table 2 Tibial prosthesis spatial coordinate system

[0057]

[0058] S102, in the coordinate system, spatial information of the osteotomy surface position and contact points of the prosthesis is collected to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data include the coordinates of the plane element point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point.

[0059] The positions of the osteotomy surfaces of different models and sizes (including the coordinates of the plane origin relative to the bone and the normal of the plane) are divided into the anterior femoral cutting plane, the posterior femoral cutting plane, the distal femoral cutting plane, and the tibial cutting plane, which are recorded in the prosthesis information, such as Figure 4 and Figure 5 shown.

[0060] The contact point is the contact point of the medial and lateral joints, which is divided into the medial condyle registration point and the lateral condyle registration point, and is recorded in the prosthesis information, such as Figure 4 shown.

[0061] S103, obtaining the meta information data and other attribute data of the prosthesis, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta information data and other attribute data.

[0062] Prosthesis information is extremely important for surgical effect and safety analysis. In this database, prosthesis information mainly includes the following: 1) Prosthesis meta-information, including the manufacturer, model, and certification and listing related information of the prosthesis. 2) Other attributes, such as joint material, color appearance, etc., will also be recorded in the prosthesis information.

[0063] Finally, after the prosthesis data is managed, the managed data shown in Table 3 is obtained.

[0064] Table 3 Femoral and tibial cutting plane data

[0065]

[0066]

[0067] According to a specific implementation of the embodiment of the present disclosure, the three-dimensional space coordinate system is set to align different types of prostheses to the coordinate system, including:

[0068] For femoral prosthesis, the distal osteotomy plane of the femoral prosthesis is defined as the horizontal plane. Based on this standard, the force line of the prosthesis can be aligned. When the prosthesis is replaced, the force line and the distal osteotomy amount remain unchanged.

[0069] In the horizontal plane, the intersection points of the axes of the two femoral prosthesis intramedullary stems and the horizontal plane are marked as A and B, respectively, and the midpoint of the line segment AB is defined as the coordinate origin CSO;

[0070] The straight line passing through the coordinate origin CSO and perpendicular to AB is defined as the Y axis, and the positive direction points to the front of the femoral prosthesis;

[0071] The straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis, with the positive direction pointing to the top of the femoral prosthesis; the X axis is determined according to the right-hand rule. In this coordinate system, the internal and external rotation angles will not change when the prosthesis is replaced.

[0072] According to a specific implementation of the embodiment of the present disclosure, the three-dimensional space coordinate system is set to align different types of prostheses to the coordinate system, including:

[0073] For tibial prosthesis, the tibial tray osteotomy plane is defined as a horizontal plane. This standard will not change the force line, the amount of osteotomy, or the gap between the femur and tibia.

[0074] In the horizontal plane, the intersection of the axis of the tibial intramedullary stem and the horizontal plane is defined as the coordinate origin CSO; the projection of the axis of the tibial intramedullary stem in the horizontal plane is defined as the Y axis, with the positive direction pointing forward;

[0075] The straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis, with the positive direction pointing upwards;

[0076] Determine the X-axis using the right-hand rule.

[0077] According to a specific implementation of the embodiment of the present disclosure, in the coordinate system, spatial information collection is performed on the osteotomy surface position and contact points of the prosthesis to form osteotomy surface data and contact point data of the prosthesis, including:

[0078] For the femoral prosthesis, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur, and the tibial cutting plane are selected as the osteotomy plane of the femur for data collection to form the osteotomy plane data of the femur.

[0079] According to a specific implementation of the embodiment of the present disclosure, in the coordinate system, spatial information collection is performed on the osteotomy surface position and contact points of the prosthesis to form osteotomy surface data and contact point data of the prosthesis, including:

[0080] Data collection is performed on the medial condyle registration point and the lateral condyle registration point at the contact point of the inner and outer joints of the femoral prosthesis to form the contact point data of the femoral prosthesis. The contact point is used to calculate the inner and outer gaps and evaluate the stability of the joint.

[0081] According to a specific implementation of the embodiment of the present disclosure, the step of obtaining the meta information data and other attribute data of the prosthesis includes:

[0082] Based on the manufacturer information, model information and certification and listing information of the prosthesis, meta-information data of the prosthesis is formed.

[0083] According to a specific implementation of the embodiment of the present disclosure, the step of obtaining the meta information data and other attribute data of the prosthesis includes:

[0084] Based on the material, color and appearance information of the prosthesis joint, other attribute data of the prosthesis are formed.

[0085] According to a specific implementation of the embodiment of the present disclosure, the osteotomy surface data, the contact point data, the meta information data and other attribute data are used to form the prosthesis management data, including:

[0086] For the femoral prosthesis model, the management data includes the normal of the front end cutting plane of the femoral prosthesis, the normal of the rear end cutting plane of the femoral prosthesis, the origin coordinates of the front end cutting plane, the color, the medial condyle alignment point, the femoral three-dimensional prosthesis model contains multiple triangular plane vertex coordinates and their plane indexes, the lateral condyle alignment point, the origin coordinates of the rear end cutting plane and the prosthesis model.

[0087] According to a specific implementation of the embodiment of the present disclosure, the prosthesis management data is formed based on the osteotomy surface data, the contact point data, the meta information data and other attribute data, and further includes:

[0088] For the tibial prosthesis model, the management data includes the tibial cutting plane normal, the element coordinates and color of the tibial prosthesis cutting plane, the coordinates of multiple triangle plane vertices contained in the tibial three-dimensional prosthesis model and their plane index, and the prosthesis model.

[0089] Compared with the above method embodiment, the present invention also provides a prosthesis data management system, including:

[0090] A setting module, used for aligning different types of prostheses to the three-dimensional space coordinate system by setting the three-dimensional space coordinate system;

[0091] An acquisition module is used to acquire spatial information of the osteotomy surface position and contact points of the prosthesis in the coordinate system to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data includes coordinates of the plane element point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point;

[0092] A management module is used to obtain the meta information data and other attribute data of the prosthesis, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta information data and other attribute data.

[0093] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0094] The units involved in the embodiments described in the present disclosure may be implemented by software or hardware. The name of a unit does not limit the unit itself in some cases. For example, the first acquisition unit may also be described as a "unit for acquiring at least two Internet Protocol addresses".

[0095] It should be understood that various parts of the present disclosure may be implemented in hardware, software, firmware or a combination thereof.

[0096] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for prosthetic data management, characterized in that: include: By setting a three-dimensional spatial coordinate system, different types of prostheses are uniformly aligned to the coordinate system, wherein, for the femoral prosthesis, the osteotomy plane of the distal end of the femoral prosthesis is defined as the horizontal plane, in the horizontal plane, the intersection points of the two intramedullary stem axes of the femoral prosthesis and the horizontal plane are marked as A and B respectively, the midpoint of the line segment AB is defined as the coordinate origin CSO, the straight line passing through the coordinate origin CSO and perpendicular to AB is defined as the Y axis, and the positive direction points to the front of the femoral prosthesis, the straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis, and the positive direction points to the top of the femoral prosthesis, and the X axis is determined according to the right-hand rule, and for the tibial prosthesis, the osteotomy plane of the tibial tray is defined as the horizontal plane, in the horizontal plane, the intersection point of the intramedullary stem axis of the tibial tray and the horizontal plane is defined as the coordinate origin CSO, the projection of the intramedullary stem axis of the tibial tray in the horizontal plane is defined as the Y axis, and the positive direction points to the front, and the straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis The positive direction points upwards. The X axis is determined according to the right-hand rule to align the force line of the prosthesis so that when the prosthesis is replaced, the force line remains unchanged and the amount of distal bone resection remains unchanged; In the coordinate system, spatial information of the osteotomy surface position and contact points of the prosthesis is collected to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data includes coordinates of the plane element point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point; Obtain the meta-information data and other attribute data of the prosthesis, wherein the other attribute data is formed based on the material, color and appearance information of the prosthetic joint, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the meta-information data and other attribute data.

2. The method according to claim 1, characterized in that The step of collecting spatial information of the osteotomy surface position and contact points of the prosthesis in the coordinate system to form osteotomy surface data and contact point data of the prosthesis includes: For the femoral prosthesis, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur, and the tibial cutting plane are selected as the osteotomy plane of the femur for data collection to form the osteotomy plane data of the femur.

3. The method according to claim 1, characterized in that The step of collecting spatial information of the osteotomy surface position and contact points of the prosthesis in the coordinate system to form osteotomy surface data and contact point data of the prosthesis includes: Data collection is performed on the medial condyle registration point and the lateral condyle registration point at the contact point of the inner and outer joints of the femoral prosthesis to form the contact point data of the femoral prosthesis.

4. The method according to claim 1, characterized in that The step of obtaining the meta information data and other attribute data of the prosthesis includes: Based on the manufacturer information, model information and certification and listing information of the prosthesis, meta-information data of the prosthesis is formed.

5. A prosthesis data management system, characterized in that: include: A setting module is used to align different types of prostheses to the coordinate system by setting a three-dimensional spatial coordinate system, wherein, for a femoral prosthesis, the osteotomy plane of the distal end of the femoral prosthesis is defined as a horizontal plane, in the horizontal plane, the intersection points of the two intramedullary stem axes of the femoral prosthesis and the horizontal plane are marked as A and B respectively, the midpoint of the line segment AB is defined as the coordinate origin CSO, the straight line passing through the coordinate origin CSO and perpendicular to AB is defined as the Y axis, and the positive direction points to the front of the femoral prosthesis, the straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis, and the positive direction points to the top of the femoral prosthesis, and the X axis is determined according to the right-hand rule, and for a tibial prosthesis, the osteotomy plane of the tibial tray is defined as a horizontal plane, in the horizontal plane, the intersection point of the intramedullary stem axis of the tibial tray and the horizontal plane is defined as the coordinate origin CSO, the projection of the intramedullary stem axis of the tibial tray in the horizontal plane is defined as the Y axis, and the positive direction points to the front, and the straight line passing through the coordinate origin CSO and perpendicular to the horizontal plane is defined as the Z axis The positive direction points upwards. The X axis is determined according to the right-hand rule to align the force line of the prosthesis so that when the prosthesis is replaced, the force line remains unchanged and the amount of distal bone resection remains unchanged; An acquisition module is used to acquire spatial information of the osteotomy surface position and contact points of the prosthesis in the coordinate system to form osteotomy surface data and contact point data of the prosthesis, wherein the osteotomy surface data includes coordinates of the plane element point relative to the bone, the front end cutting plane of the femur, the rear end cutting plane of the femur, the distal end cutting plane of the femur and the tibial cutting plane, and the contact point is the contact point of the medial and lateral joints, including the medial condyle registration point and the lateral condyle registration point; A management module is used to obtain metadata data and other attribute data of the prosthesis, wherein the other attribute data is formed based on the material, color and appearance information of the prosthetic joint, so as to form the management data of the prosthesis based on the osteotomy surface data, the contact point data, the metadata data and other attribute data.

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