Digital location minimally invasive spine surgery 3D printing guide plate and manufacturing method

A 3D printing, minimally invasive surgery technology, applied in the field of medical devices and 3D printing guide plates, can solve the problems of poor accuracy, unavoidable dependence, and cumbersome guide plate positioning process, so as to improve medical safety, reduce impact, and improve matching degree of effect

Active Publication Date: 2017-09-15
刘大鹏 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the poor accuracy of the guide plate in the prior art due to postoperative factors, the unavoidable dependence on intraoperative CT scanning during minimally invasive spinal surgery, and the cumbersome positioning process of the guide plate and the technical status quo that cannot meet the surgical aseptic requirements, this paper The invention provides a digital positioning spine minimally invasive surgery 3D printing guide plate and its preparation method. When extracting data from preoperative CT, a special prone position position frame is used (this position frame has already appli

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  • Digital location minimally invasive spine surgery 3D printing guide plate and manufacturing method
  • Digital location minimally invasive spine surgery 3D printing guide plate and manufacturing method
  • Digital location minimally invasive spine surgery 3D printing guide plate and manufacturing method

Examples

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Effect test

Embodiment 1

[0043] Example 1: Preparation method of 3D printing guide plate for digital positioning spinal minimally invasive surgery

[0044] A method for preparing a 3D printing guide plate for digitally positioned spinal minimally invasive surgery provided by the present invention comprises the following steps:

[0045] (1) Positioning: The subject is placed prone on the 3D printed spinal surgery prone position frame. The CT scanning position is consistent with the position during the operation. Place the positioning block (7) on the skin near the centerline of the patient's spine near the operation area. and mark it.

[0046] (2) CT scanning: use a multi-row CT machine to scan the torso of the tested object, and store the relevant data information of the tested object.

[0047] (2) Data segmentation in medical imaging software: Import CT scan data into medical imaging software for processing, use threshold segmentation method and Boolean operation summation, display vertebral body an...

Embodiment 2

[0054] Embodiment 2: Acquisition and labeling of CT data

[0055] In the present invention, the body position of the tested subject's CT is consistent with the final position of the guide plate (1), and the tested subject is placed in a prone position on the body position frame to ensure that the tested subject's vertebral body (20) and skin form are relatively constant. Prevent serious errors caused by soft tissue deformation caused by body position changes on the surface of the fitting guide plate, and its relative position is consistent with the height when the guide plate (1) is finally used. Standard point, place a positioning block (7) on the spine centerline of the tested object, and mark the contact edge between the positioning block (7) and the skin on the skin with a waterproof marking pen.

[0056] A multi-row CT machine is used to scan the torso of the tested object and store relevant information of the tested object.

Embodiment 3

[0057] Embodiment three: computer-aided design

[0058] In the present invention, the skin-fitting surface data of the main part of the guide plate (1) is obtained by holding up the tester on the body position frame, which can ensure that the guide plate (1) prepared according to the tester’s skin data is accurate and reliable; For CT, the skin on the back must be flat, and the fitting surface of the produced guide plate is flat. During the operation, the prone position is performed, and the curved surface of the skin behind the arch is deformed; the rest of the guide plate (1) is stretched by the periphery of the skin. Order and pruning order can ensure that the guide plate (1) fits the skin as closely as possible, and ensure that the stretched height is parallel to the upper and lower edges of the vertebral body (20) inserted into the lesion, and the positioning block cavity (3) is reserved in the design ; The design of the guide hole (2) is based on the upper and lower edge...

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Abstract

The invention discloses a digital location minimally invasive spine surgery 3D printing guide plate. A locating block cavity and a spinous process locating line are arranged in the middle of the guide plate; guide holes are formed in two sides of the guide plate; a locating block is arranged in the locating block cavity; a T-shaped groove is formed in the bottom of one side of a central axis of the locating block; a T-shaped fixed groove is formed in the bottom side of the guide plate; a locating scale plate is arranged in the T-shaped fixed groove; and scales are arranged on the surface of the locating scale plate. The guide plate provided by the invention, in combination with digital measurement, can optimize and facilitate a locating process; secondary location can be directly implemented in accordance with marks made on the surface of a tested object, so that such inconvenience as an operating area of the tested object cannot be completely disinfected and the like can be avoided; puncture points can be also rapidly and accurately determined by doctors in an operation, and puncture directions can be guaranteed to be accurate simultaneously in both coronal plane and sagittal plane; and the guide plate, in comparison with a conventional operating mode, can shorten an operating time, reduce radiation amounts on both the doctors and a patient in the operation and enhance safety and accuracy of the operation; therefore, the guide plate has broad applicability in the field of minimally invasive spine surgeries.

Description

technical field [0001] The present invention mainly relates to the technical field of medical equipment, in particular, the present invention relates to the technical field of 3D printing guide plates. Background technique [0002] With the rapid development of the medical field, modern medicine tends to individualized treatment strategies. The extensive and in-depth combination of computer information technology and life sciences has produced a new interdisciplinary discipline—digital medicine, which has greatly promoted modern clinical individualized diagnosis and treatment technology. development of. 3D printing technology is to directly accumulate three-dimensional objects layer by layer or point by point from computer model materials. As a kind of computer-aided manufacturing (CAM) technology, it has been successfully applied to many aspects of the medical field in recent years. The combination of medical imaging technology and 3D printing technology has enabled medica...

Claims

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Application Information

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IPC IPC(8): A61B34/10A61B90/11A61B90/00B33Y10/00B33Y80/00B33Y50/00
CPCA61B34/10A61B90/11A61B90/37A61B90/39A61B2034/101A61B2034/105A61B2034/108A61B2090/3762A61B2090/3916B33Y10/00B33Y50/00B33Y80/00
Inventor 刘大鹏付立柱杨红菊
Owner 刘大鹏
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