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Skull guiding formwork for calvarium reconstruction surgery and manufacturing method of skull guiding formwork

A technique of surgical operation and template, applied in the direction of surgery, medical science, etc., can solve the problems of bone flap injury, unfavorable healing, etc., and achieve the effect of reducing injury, facilitating recovery, and reducing complexity

Inactive Publication Date: 2013-11-27
徐州冠珂工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of the prior art that may cause excessive cutting of the skull and cause great damage to the bone flap, which is not conducive to postoperative healing, the present invention provides a method that can protect important anatomical positions during the operation without causing damage to the bone flap. Skull-guided template for cranial top reconstruction surgery for over-cutting of bone flap, conducive to postoperative recovery and healing, and manufacturing method thereof

Method used

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  • Skull guiding formwork for calvarium reconstruction surgery and manufacturing method of skull guiding formwork
  • Skull guiding formwork for calvarium reconstruction surgery and manufacturing method of skull guiding formwork
  • Skull guiding formwork for calvarium reconstruction surgery and manufacturing method of skull guiding formwork

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Embodiment 1

[0053] A method for making a skull-guided template for cranial reconstruction surgery, comprising the following steps:

[0054] 1) Scan the patient's head with a 3D CT scanning device or MRI device to obtain image data containing the patient's head information, screen the skull data from the image data of the head information, and establish a 3D contour model of the patient's skull;

[0055] 2) Compare the 3D outline model of the patient's skull with the normal skull model, make the 3D outline model of the patient's skull meet the appearance requirements of the normal skull through geometric transformation, and use the 3D model after geometric transformation as the surgical target model;

[0056] 3) Determine the cutting route of the craniotomy, the number of bone flaps to be cut and the shape of the bone flap. The cutting route avoids parts that do not need to be separated and important anatomical structures to reduce surgical risks. The three-dimensional contour model of the...

Embodiment 2

[0075] The present invention is specifically described in conjunction with macrocephaly case:

[0076] exist Figure 1A and Figure 1B In , the anatomical structure of the normal skull is shown, the frontal bone 1, the parietal bone 2 and the occipital bone 3 constitute the cranial roof. Figure 1C It shows the difference between the cranial top of the patient with macrocephaly and the normal person, the boundary 13 is the contour of the cranial top of the patient with macrocephaly, and the boundary 14 is the contour of the cranial top of the normal person. The purpose of cranial reconstruction surgery is to reduce the cranial top profile of 13 to the normal cranial top profile of 14.

[0077] figure 2 The flow of the digital design method of cranial top reconstruction surgery and the design method of cutting guide template described in the present invention is described in detail.

[0078] According to the present invention, the patient needs to take CT or MRI, obtain suc...

Embodiment 3

[0086] In conjunction with plagiocephaly patient case, further illustrate the present invention:

[0087] Figure 14 describes the purpose of plastic surgery by adjusting the bone flap of the plagiocephaly patient. The cranial top 16 shown in 14A is in poor shape, and the frontal bone 1 is not full. The CT data of the patient are reconstructed. Figure 14B What is shown is the shape obtained after the simulation operation, and the purpose of plastic surgery can be achieved by adjusting the bone flap position of the cranium itself, and the bone flap 26 and the original bone flap at the position of the bone flap 27 are exchanged and adjusted to Figure 14B The location is shown, and the coronal suture 5 is reconstructed. The guide template is generated by extracting the outer surfaces of the bone flap 26 and the bone flap 27, and the guide template is processed by laser sintering technology, Figure 14C What is shown is that the doctor cuts out the bone flap 26 by covering the ...

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Abstract

Disclosed is a manufacturing method of a skull guiding formwork for calvarium reconstruction surgery. The manufacturing method includes building a three-dimensional outline model of a skull of a patient; predicting a surgical objective model; determining a cutting path of craniotomy and the quantity and the shapes of bone flaps required to be cut and cutting and obtaining the bone flaps according to the cutting path; building a three-dimensional cutting guiding formwork model; designing splicing structures among the bone flaps and building a three-dimensional splicing guiding formwork model; and manufacturing a cutting guiding formwork and a splicing guiding formwork according to the cutting guiding formwork model and the splicing guiding formwork model. The skull guiding formwork for calvarium reconstruction surgery comprises the cutting guiding formwork and the splicing guiding formwork, and an outline of an edge of a cutting guiding formwork body shows the cutting path during surgery; and a mortise connecting structure which is spliced with the adjacent splicing guiding formwork or a skull base is arranged at the outer edge of a splicing guiding formwork body. The manufacturing method has the advantages that important anatomy position can be protected during surgery, excessive cutting to the bone flaps is avoided, and the manufacturing method is favorable for postoperation recovery and healing.

Description

technical field [0001] The invention relates to a skull-guided template for cranial reconstruction surgery and a manufacturing method thereof. technical background [0002] Reconstruction of the top of the skull to achieve the purpose of skull plastic surgery, the most critical technology is to redesign the original skull, that is, segmentation, resection and splicing to achieve the effect of plastic surgery. The current cranial top design relies on 3D CT to judge the status of the cranial top deformity, and designs the cutting shape and route on the 2D CT film or paper based on the doctor's experience, and then adjusts the cutting shape on the spot according to the actual situation during the operation. routes and splicing methods. There are many problems in this conventional method: Some cranial reconstructions do not necessarily require all the skulls to be cut and spliced, but only part of the cranium to be cut, separated and spliced, so it is difficult to design a plan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/56
Inventor 姜献峰游嘉彭伟
Owner 徐州冠珂工程科技有限公司
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