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A reset position detection method with patient safety protection

A technology for safety protection and repositioning, applied in image analysis, medical science, surgery, etc., can solve the problem of difficulty in ensuring the accuracy of bone repositioning, and achieve the effect of ensuring patient safety.

Active Publication Date: 2022-08-02
WEIHAI WEIGAO ORTHOPEDIC SURGICAL ROBOT CO LTD
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Problems solved by technology

It is difficult to ensure the accuracy of bone reduction

Method used

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  • A reset position detection method with patient safety protection
  • A reset position detection method with patient safety protection
  • A reset position detection method with patient safety protection

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Embodiment Construction

[0050] Hereinafter, the present invention will be further described in detail with specific embodiments with reference to the accompanying drawings.

[0051] refer to figure 2 , the main process of the reset position detection method with patient safety protection is as follows

[0052] In the first step, a virtual model of the proximal end of the fracture and a virtual model of the distal end of the fracture displayed on the display screen are constructed according to the CT or MRI scan image data of the leg bone.

[0053] In the second step, a direction bounding box hierarchy tree is established for the virtual model of the proximal fracture and the virtual model of the distal fracture. Using the characteristics of virtual model surface rendering, the relevant information of the triangular facets and their vertices composing the virtual model of the proximal fracture can be easily obtained, and the relevant information of the triangular faces and their vertices composing t...

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Abstract

The invention relates to a reset position detection method with patient safety protection, which solves the technical problem of how to prevent the collision between the proximal end and the distal end of the fracture to ensure the safety of the patient, and is applied in the process of femoral fracture reduction performed by an orthopedic surgical robot , the reset system fixes the distal end of the femur, and plans the reset path according to the mirror image of the unaffected side. During the simulated reset process, the above algorithm performs collision judgment to avoid the risk of collision.

Description

technical field [0001] The invention relates to the technical field of orthopedic surgery reset robots, in particular to a reset position detection method with patient safety protection. Background technique [0002] In the field of orthopedic technology, there are two major aspects involved, in short, reduction and positioning. Reduction refers to restoring a broken bone to the state it was in before it was broken. This step is critical, as few doctors can restore a broken bone to the same level as before, which is called anatomical reduction. This step has been solved manually without reference and comparison so far. It is difficult to guarantee the accuracy of bone reduction. Such as length, especially the angulation of bones. The simple understanding of positioning is to fix the broken bone. [0003] During the operation of the reduction of the leg bone fracture, the magnetic navigation system can be used to reconstruct the 2D CT or MRI image of the leg bone in 3D, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B34/10G06T7/00G06T17/00
CPCA61B34/10G06T7/0012G06T17/00A61B2034/105G06T2207/10081G06T2207/10088G06T2207/30008
Inventor 王炳强康伟伟孙之建
Owner WEIHAI WEIGAO ORTHOPEDIC SURGICAL ROBOT CO LTD
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