Personalized skull defect protection device and preparation method

Abstract

The invention provides a personalized skull defect protection device and a preparation method. The protection device comprises a cap body and a 3D printing protection support matched with a damaged part of a patient, the 3D printing protection support is provided with a smooth contour edge and can cover a skull defect part of the patient, the outer side of the 3D printing protection support is wrapped with a connecting cover, and the side, away from the damaged part of the patient, of the connecting cover is connected with the inner side of the cap body. Due to the arrangement of the personalized 3D printing protection support, the defect part can be substantially protected. The preparation method comprises the following steps: reconstructing a three-dimensional computer image of the headof a patient according to three-dimensional data of the head of the patient to obtain a three-dimensional computer image of a defect part of the patient, extracting a curved surface of the three-dimensional computer image of the defect part, reconstructing a protection support computer three-dimensional model according to the curved surface, and printing a solid body of the protection support in a3D mode so that the protection support matched with the defect portion of the patient is obtained, recovery of head defects of the patient is facilitated, and comfort of the patient is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a personalized skull defect protection device and a preparation method. Background technique [0002] The skull (skull) is located above the spine and consists of 23 flat and irregular bones of different shapes and sizes (3 pairs of ossicles of the middle ear are not included). Except for the mandible and hyoid bone, the rest of the bones are firmly connected to each other by sutures or cartilage, which play a role in protecting and supporting the brain, sensory organs, and the initial parts of the digestive and respiratory organs. [0003] For patients undergoing craniectomy in neurosurgery and brain surgery, the bone flap cannot be retracted directly after the initial surgery. Under normal circumstances, if there is no infection after the operation, the patient needs to undergo cranioplasty again in about 2 to 3 months. However, some patients need to prolon...

AI Technical Summary

Problems solved by technology

[0006] 1. The general-purpose skull protection cap is a full head-enclosing type, the overall quality is heavy, and the compression on the patient's cervical spine is obvious;

[0007] 2. Each patient's head shape is different. According to clinical reports, although there are several models of universal protective caps, the protective caps do not fit well with the patient's head, which makes the protective caps easy to fall off after wearing them. The patient experience poor sense;

[0008] 3. The general-purpose protective cap has a uniform appearance and cannot meet the patient's preferences or psychological needs

[0009] A Chinese patent discloses a 3D printing heavy craniocerebral trauma removal skull protection device (application number: 201810414357.2), which includes a cap body and a titanium alloy net sleeve, a gap is opened on the right side wall of the cap body, and the right side of the cap body The outer side is hinged with an arc-shaped transparent cover plate matching the notch through a pin shaft. The bottom of the inner top wall of the cap body is fixedly installed with a first rubber block, a second rubber block with a socket inside and a socket with a socket inside. The third rubber block of the hole, the patented skull protection device can protect the patient's craniocerebral trauma, especially to prevent the large wind from blowing into the inside of the cap body, so as to avoid severe craniocerebral trauma and remove the skull The patient's condition is aggravated, but the cap body of the patent adopts a full-head enveloping type from the attached drawings, the overall quality is relatively heavy, and the degree of fit to the patient's defect is average

But because each patient's head shape is different, according to clinical reports, although there are several models of universal protective caps, the protective caps do not fit well with the patient's head, which makes it easy to fall off after wearing the protective cap. Poor sense

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