CN-121971165-A - Intraoperative planning device for mobile platform unicondylar surgery and computer equipment

CN121971165ACN 121971165 ACN121971165 ACN 121971165ACN-121971165-A

Abstract

The embodiment of the application is suitable for the technical field of computer-aided medical technology and operation planning, and provides an intraoperative planning device and computer equipment for a mobile platform unicondylar operation, wherein the device comprises a display unit, a mobile platform and a computer device, wherein the display unit is used for displaying an image of an operation part, the image comprises a simulated display mobile platform top view, and the mobile platform consists of a tibial tray prosthesis and a tibial pad prosthesis capable of moving on the surface of the tibial tray prosthesis; the device comprises a display unit, a monitoring unit and a planning unit, wherein the display unit is used for displaying the movement track of the tibial cushion prosthesis on the surface of the tibial cushion prosthesis in the process of assisting the knee joint movement of a patient, and the planning unit is used for planning in the operation of the unicondylar surgery based on the movement track of the tibial cushion prosthesis. By adopting the device, the motion trail of the tibial tray prosthesis of the movable platform can be monitored in the unicondylar operation, so that the operation planning in the operation is realized, and the safety and the reliability of the planning scheme are ensured.

Inventors

CHAI WEI
Nan Shaokui
LIU XIANGDONG
Meng Liaili

Assignees

骨圣元化机器人(深圳)有限公司
中国人民解放军总医院第四医学中心

Dates

Publication Date: 20260505
Application Date: 20251223

Claims (10)

1. An intraoperative planning device for a mobile platform unicondylar procedure, comprising: The device comprises a display unit, a display unit and a control unit, wherein the display unit is used for displaying an operation position image, the image comprises a simulated display top view of a movable platform, the movable platform is composed of a tibial tray prosthesis and a tibial pad prosthesis which can move on the surface of the tibial tray prosthesis, and a side wall is arranged on one side of the tibial tray prosthesis; The monitoring unit is used for monitoring the movement track of the tibial tray prosthesis on the surface of the tibial tray prosthesis in the process of assisting the knee joint of the patient to move, and the movement track is displayed through the display unit; and the planning unit is used for carrying out intraoperative planning of the unicondylar operation based on the motion trail of the tibial pad prosthesis.
2. The device according to claim 1, wherein the monitoring unit is specifically configured to: determining the sphere center of a femoral prosthesis which is simulated and displayed at the operation position in the process of assisting the knee joint movement of a patient, wherein the femoral prosthesis is a spherical prosthesis; projecting the sphere center of the femoral prosthesis to a tibial tray plane to obtain a projection point, and enabling the center of the tibial pad prosthesis to coincide with the projection point by moving the tibial pad prosthesis; the motion profile of the tibial insert prosthesis during movement is monitored.
3. The apparatus of claim 2, wherein the monitoring the trajectory of movement of the tibial insert prosthesis during movement comprises: identifying an outer contour of the tibial insert prosthesis; during movement of the tibial insert prosthesis, a trajectory of movement of the tibial insert prosthesis is generated based on a union of the outer contours at the respective locations.
4. A device according to any one of claims 1 to 3, wherein the monitoring unit is further adapted to: And monitoring the distance between the tibial pad prosthesis and the tibial tray prosthesis side wall in the moving process of the tibial pad prosthesis.
5. The device according to claim 4, wherein the display unit is specifically configured to: when the distance between the tibial insert prosthesis and the tibial tray prosthesis side wall is larger than a first preset distance value, displaying the movement track of the tibial insert prosthesis by adopting a first color; and when the distance between the tibial insert prosthesis and the tibial tray prosthesis side wall is smaller than or equal to the first preset distance value, displaying the outer contour of the tibial insert prosthesis at the current position by adopting a second color.
6. The device according to any one of claims 1 to 3 or 5, wherein the monitoring unit is further configured to: During assisting in the movement of the knee joint of the patient, the joint clearance value of the patient is monitored, wherein the joint clearance value is the distance between the spherical surface of the femoral prosthesis and the tibial insert prosthesis which are displayed in a simulation mode.
7. The apparatus of claim 6, wherein the display unit is further configured to: And when the joint clearance value is smaller than or equal to a second preset distance value, displaying the outer contour of the tibial pad prosthesis at the current position by adopting a second color.
8. The device of any one of claims 1 to 3 or 5 or 7, wherein the patient's knee joint is moved at an angle of-20 degrees to 160 degrees, wherein the angle of the knee joint is approximately 0 degrees when the knee joint straightens such that the thigh is in a straight state with the calf, and wherein the angle of the knee joint is approximately 90 degrees when the knee joint flexes such that the thigh is in a perpendicular state with the calf.
9. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the computer device is caused to implement the method of: Displaying an operation position image through a display unit, wherein the image comprises a simulated display top view of a movable platform, the movable platform is composed of a tibial tray prosthesis and a tibial pad prosthesis capable of moving on the surface of the tibial tray prosthesis, and a side wall is arranged on one side of the tibial tray prosthesis; Monitoring a motion trail of the tibial insert prosthesis on the surface of the tibial tray prosthesis in the process of assisting the knee joint of the patient to move, and displaying the motion trail through the display unit; and performing intraoperative planning of the unicondylar surgery based on the motion trail of the tibial pad prosthesis.
10. A computer program product comprising a computer program, characterized in that the computer program, when run, causes the following method to be performed: Displaying an operation position image through a display unit, wherein the image comprises a simulated display top view of a movable platform, the movable platform is composed of a tibial tray prosthesis and a tibial pad prosthesis capable of moving on the surface of the tibial tray prosthesis, and a side wall is arranged on one side of the tibial tray prosthesis; Monitoring a motion trail of the tibial insert prosthesis on the surface of the tibial tray prosthesis in the process of assisting the knee joint of the patient to move, and displaying the motion trail through the display unit; and performing intraoperative planning of the unicondylar surgery based on the motion trail of the tibial pad prosthesis.

Description

Intraoperative planning device for mobile platform unicondylar surgery and computer equipment Technical Field The embodiment of the application belongs to the technical field of computer-aided medical treatment and operation planning, and particularly relates to an intraoperative planning device and computer equipment for a mobile platform unicondylar operation. Background Unicondylar knee replacement surgery (unicompartmental knee arthroplasty, UKA) is a procedure for treating injury or degeneration in a specific area of the knee, and can help a patient to restore the corresponding function after surgery by resecting diseased cartilage and part of bone, and implanting a prosthesis. One of the key to the success of this procedure is the placement of the implant in the proper position, and therefore intraoperative planning is particularly important. In the prior art, unicondylar knee replacement surgery is mainly performed based on a fixed platform. For example, chinese patent application No. 202410925625.2, "intraoperative knee clearance adjustment device and knee surgery apparatus" discloses a device for intraoperatively adjusting knee clearance, which is proposed for unicondylar knee replacement surgery performed on a fixed platform. In the field of unicondylar knee replacement surgery, one of the differences between a fixed platform and a mobile platform is whether the tibial insert is movable on the tibial tray. In the stationary platform, the tibial insert is firmly locked against movement on the tibial tray, while in the movable platform, the tibial insert is rotatable and movable on the tibial tray surface. This results in the fact that the intraoperative planning method for unicondylar knee replacement surgery on a fixed platform cannot be directly applied to the intraoperative planning stage of a mobile platform. In the prior art, an effective planning method in the unicondylar knee joint operation aiming at a movable platform is lacking. Disclosure of Invention In view of the above, the embodiment of the application provides an intraoperative planning device and computer equipment for a unicondylar operation of a movable platform, which are used for intraoperative planning for a unicondylar knee joint replacement operation of the movable platform, and ensuring the safety and reliability of a planning scheme. A first aspect of an embodiment of the present application provides an intraoperative planning apparatus for a mobile platform unicondylar procedure, including: The device comprises a display unit, a display unit and a control unit, wherein the display unit is used for displaying an operation position image, the image comprises a simulated display top view of a movable platform, the movable platform is composed of a tibial tray prosthesis and a tibial pad prosthesis which can move on the surface of the tibial tray prosthesis, and a side wall is arranged on one side of the tibial tray prosthesis; The monitoring unit is used for monitoring the movement track of the tibial tray prosthesis on the surface of the tibial tray prosthesis in the process of assisting the knee joint of the patient to move, and the movement track is displayed through the display unit; and the planning unit is used for carrying out intraoperative planning of the unicondylar operation based on the motion trail of the tibial pad prosthesis. Optionally, the monitoring unit is specifically configured to: determining the sphere center of a femoral prosthesis which is simulated and displayed at the operation position in the process of assisting the knee joint movement of a patient, wherein the femoral prosthesis is a spherical prosthesis; projecting the sphere center of the femoral prosthesis to a tibial tray plane to obtain a projection point, and enabling the center of the tibial pad prosthesis to coincide with the projection point by moving the tibial pad prosthesis; the motion profile of the tibial insert prosthesis during movement is monitored. Optionally, the monitoring the motion profile of the tibial insert prosthesis during movement includes: identifying an outer contour of the tibial insert prosthesis; during movement of the tibial insert prosthesis, a trajectory of movement of the tibial insert prosthesis is generated based on a union of the outer contours at the respective locations. Optionally, the monitoring unit is further configured to: And monitoring the distance between the tibial pad prosthesis and the tibial tray prosthesis side wall in the moving process of the tibial pad prosthesis. Optionally, the display unit is specifically configured to: when the distance between the tibial insert prosthesis and the tibial tray prosthesis side wall is larger than a first preset distance value, displaying the movement track of the tibial insert prosthesis by adopting a first color; and when the distance between the tibial insert prosthesis and the tibial tray prosthesis side wall is smaller than or equal to the first pre