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

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...

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 applied for a patent), and a measuring tool is used to measure any edge of the positioning block. The distance from the intersection point of the central axis of the spine to the center of the operated vertebral body is recorded as the a value; the vertical distance from the center of the operated vertebral body to the skin surface is measured as the b value; the intraoperative guide plate placement can be calculated from the a value and the b value The precise position of , that is, the distance on the center line of the spine that needs to be translated and fine-tuned up and down is recorded as the c value

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