Universal tibia osteotomy module in navigation aid total knee arthroplasty
A total knee replacement and navigation-assisted technology, applied in the field of medical devices, can solve the problems of lack of supporting tools, low penetration rate, narrow clinical application range, etc., and achieve the effect of high accuracy and simple and convenient operation
Inactive Publication Date: 2014-08-27
THE SECOND AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA
View PDF8 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Navigation-assisted total knee arthroplasty has the advantages of precision and extramedullary positioning. It has been invented for many years, but the scope of clinical application is narrow and the popularity rate is low. The important reason is that there are no supporting tools. If you use ordinary total knee arthroplasty The tool needs to pinch the osteotomy module by hand. At this time, the osteotomy module is difficult to stabilize on the tibia or femur, and it is easy to shake. It needs constant adjustment, resulting in prolonged operation time and easy relocation of the osteotomy module.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention will be further described below in conjunction with accompanying drawing.
[0016] Such as figure 1 and figure 2 As shown, the present invention includes a tibial fixation block 1, a tibial osteotomy module 2 and a connecting rod 3. The tibial fixation block 1 is a cuboid, and an upper and a lower end face are provided near the four corners on the upper end surface of the tibial fixation block 1. Through the fixed hole 12, the lower end surface of the tibial fixation block 1 is a "U"-shaped groove with the opening facing downward, and a slide groove 4 is provided on the upper end surface; a spherical body 6 is fixed on the upper end of the connecting rod 3 , the middle part of the connecting rod 3 is provided with a flat structure, the lower end of the connecting rod 3 is screwed and fixed with the slider 5, and the slider 5 is slidably matched with the chute 4, and on the long side of the femoral fixation block 1 One end surface of one side is ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a universal tibia osteotomy module in the navigation aid total knee arthroplasty. The universal tibia osteotomy module comprises a tibia fixing block (1), a tibia osteotomy module body (2) and a connecting rod (3), wherein a spherical body (6) is fixedly arranged at the upper end of the connecting rod (3) and arranged in a connecting hole (12) in a penetrating mode, the upper end curve surface of the spherical body (6) abuts against a fixing block (8), and a locking threaded block (9) and the tibia osteotomy module body (2) are connected in a threaded mode and fixed. A slide block (5) is connected with the lower end of the connecting rod (3) and is in slide fit with the tibia fixing block (1). The tibia fixing block is connected with the tibia osteotomy module body through the connecting rod, the slide block is arranged at one end of the connecting rod, the spherical body is arranged at the other end of the connecting rod, the spherical body can rotate in a tibia positioning block in all directions, the correct position of the tibia osteotomy module body can be better adjusted and fixed under the navigation aid through combination with the sliding of the slide block, operation is easy, rapid and convenient, and accuracy is high.
Description
technical field [0001] The invention relates to the field of medical devices, in particular to a tibial universal osteotomy module for navigation-assisted total knee replacement. Background technique [0002] Navigation-assisted total knee arthroplasty has the advantages of precision and extramedullary positioning. It has been invented for many years, but the scope of clinical application is narrow and the popularity rate is low. The important reason is that there are no supporting tools. If you use ordinary total knee arthroplasty Tool needs to pinch its osteotomy module by hand. At this time, the osteotomy module is difficult to stabilize on the tibia or femur, and it is easy to shake. It needs constant adjustment, resulting in prolonged operation time and easy relocation of the osteotomy module. How to make full use of the advantages of navigation-assisted total knee replacement surgery urgently needs a set of suitable special tools to shorten the operation time and impro...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): A61B17/56A61B17/15
CPCA61B17/142A61B17/157A61B2017/564
Inventor 王敏姬彦辉
Owner THE SECOND AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA