Orthopedic surgery steel plate digital pre-bending model obtaining method and system
A technology for model acquisition and orthopedic surgery, applied in the field of computer-aided geometric design, can solve the problems of large fit error between the steel plate and the bone, unfavorable fixation of the two amputated bones, etc., to ensure fit, save time, and speed up the treatment process Effect
Active Publication Date: 2021-06-15
UNIV OF JINAN
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Problems solved by technology
However, doctors only rely on their own experience to bend the steel plate, which often leads to a relatively large error in the fit between the steel plate and the bone, which is not conducive to the fixation of the two amputated bones.
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[0082] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0083] figure 1 It is a schematic flowchart of a method according to an embodiment of the present invention, and the method is based on a three-dimensional bone model after virtual reduction of a patient's broken bone (which needs to be positioned using a surgical plate).
[0084] Such as figure 1 As shown, the method 100 includes:
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The invention provides an Orthopedic surgery steel plate digital pre-bending model obtaining method and system, which are both based on a three-dimensional skeleton model of a broken bone of a patient after virtual reduction and can realize the following steps: reading the three-dimensional skeleton model of the broken bone of the patient after virtual reduction; determining a position for placing a steel plate on the three-dimensional skeleton model, and generating a steel plate pre-bending line based on the determined position; calculating the length of the steel plate pre-bending line, and selecting a steel plate model with the length closest to the calculated length of the steel plate pre-bending line from a pre-established digital steel plate library; extracting the central axis of the selected steel plate model; based on the central axis, registering the steel plate pre-bending line to obtain a registered steel plate pre-bending line; and performing axial deformation pre-bending on the selected steel plate model according to the registered steel plate pre-bending line to obtain a pre-bending model corresponding to the selected steel plate model. The invention is used for assisting digital pre-bending of the solid steel plate.
Description
technical field [0001] The invention relates to the field of computer-aided geometric design, in particular to a method and system for acquiring a digital pre-bending model of a steel plate in orthopedic surgery. Background technique [0002] The incidence of fractures in life has always been high. At present, the treatment method for fractures mainly adopts the combination of artificial reduction and internal fixation of the injured limb, that is, using artificial means to restore the broken bone to its healthy anatomical shape, and then using medical screws and steel plates (such as anatomical bone plate) Fix the two broken bones. Specifically, during the operation, the doctor cut open the muscles and other tissues of the patient's fracture site to leak out the broken bone, and then manually bent the steel plate according to the shape of the bone after manual reset. During the bending process, the doctor needs to repeatedly bend the steel plate and compare it with the re...
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IPC IPC(8): G06T17/00G06F30/10G06F30/20
CPCG06T17/00G06F30/10G06F30/20
Inventor赵秀阳张申龙李舒陈思聪孙铭谭磊
OwnerUNIV OF JINAN