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Three-dimensional reconstruction method for CT image of bone joint replacement surgical robotand system

A surgical robot and CT image technology, applied in the field of robotics, can solve the difficulty of bone tissue extraction and other problems

Pending Publication Date: 2022-02-15
SHANDONG JIANZHU UNIV
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Problems solved by technology

In addition, the same CT sequence image usually contains different organs, tissues, etc., and the bone tissue pixels in the image will be surrounded by pixels such as muscles and soft tissues, which makes the extraction of bone tissue difficult.

Method used

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  • Three-dimensional reconstruction method for CT image of bone joint replacement surgical robotand system
  • Three-dimensional reconstruction method for CT image of bone joint replacement surgical robotand system
  • Three-dimensional reconstruction method for CT image of bone joint replacement surgical robotand system

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Embodiment Construction

[0048] The bone joint replacement surgery robot of the present invention has the function of completing hip joint and knee joint orthopedic surgery. Depending on the complexity of the operation, it can independently perform hip, knee, and shoulder replacement orthopedic operations, and cooperate with doctors to complete total hip replacement, total knee replacement, total shoulder replacement, and unicondylar replacement.

[0049] Such as figure 1 As shown, the hardware part of the system is mainly composed of three parts: the robotic arm system, the navigation system and the main console system; the software part optimizes the human-computer interaction strategy according to the habits of domestic doctors, and embeds a completely self-developed intraoperative safety protection strategy algorithm. It can effectively prevent accidental injury to important tissues of the patient during the operation, thereby further ensuring the safety and accuracy of the operation. It mainly i...

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Abstract

The invention relates to the field of bone joint replacement surgical robots, and discloses a three-dimensional reconstruction method for a CT image of a bone joint replacement surgical robot and a computer-assisted orthopedic surgery system based on augmented reality. The method comprises the steps of firstly, acquiring bone segmentation data of a CT image; then generating a three-dimensional skeleton model according to the obtained skeleton segmentation data of the CT image; a video image matching algorithm based on improved SURF feature points is adopted, matching tracking is carried out on a target of a video image, then the spatial attitude of the target is solved, corresponding spatial transformation is carried out on a virtual three-dimensional object, and therefore the effect of augmented reality is achieved. The main purpose of the invention is to provide a technology capable of establishing a sufficiently complex and accurate three-dimensional image for three-dimensional reconstruction of a CT image of a patient before an operation, so that a surgical robot can autonomously complete hip joint, knee joint and shoulder joint replacement orthopedic operations by means of the technology.

Description

technical field [0001] The invention relates to a robot, in particular to a method and system for three-dimensional reconstruction of a CT image of a bone joint replacement surgery robot. Background technique [0002] The market size potential of the medical robot industry is very large, but in the world, orthopedic robots, as a subdivision of medical robots, have long been monopolized by leading medical devices in the United States (such as Medtronic, Stryker, and Zimmer Biomet) , the only orthopedic robot company from China is Beijing Tianzhihang Medical Technology Co., Ltd., and its main product is officially "Tianji" orthopedic robot. It is the orthopedic robot that can carry out full-segment surgery in the world, but because its use is traumatic fracture surgery, it is not suitable for the bone joint replacement surgery field of the present invention. [0003] Due to the classification of orthopedic surgery and the diversity of surgical procedures, it is difficult for ...

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Application Information

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IPC IPC(8): A61B34/30A61B34/10G06T7/00G06T7/11G06T17/00
CPCA61B34/30A61B34/10G06T7/0012G06T17/00G06T7/11A61B2034/101A61B2034/105
Inventor 高焕兵鲁守银王涛高诺隋首钢
Owner SHANDONG JIANZHU UNIV
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