3D printing skull decompressive craniectomy postoperation bone window protective device and preparation method

Abstract

The invention discloses a 3D printing skull decompressive craniectomy postoperation bone window protective device and a preparation method. The problems in the prior art that the attaching between anexisting bone window protective device and the scalp is poor, the bone window protective device can easily move, the stress distribution is uneven, and the wearing is inconvenient are solved. The 3D printing skull decompressive craniectomy postoperation bone window protective device has the advantages that the effect between the device and the body surfacemorphological structure is precise and safe, good suitability is achieved, the wearing is convenient, the attaching is good, the stress is uniform, the comfort level is high, the stability is good, and the device is attractive, economical andenvironmentally friendly; according to the technical scheme, the device comprises a protective board and a fixing device, the protective board comprises an outer surface layer and an inner core layerwhich are formed through 3D printing, and the inner core layer is built in the outer surface layer; the shape of the outer surface layer is matched with the bone window area, the outer side surface of the outer surface layer is provided with the fixing device used for stabilizing the bone window protective board; the edge of the outer surface layer is subjected to thickening treatment; a plurality of venting holes are formed in the outer surface layer and the inner core layer, and a plurality of small holes in the inner core layer are used for strengthening the combination between the inner core layer and the outer surface layer.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a 3D printing bone window protection device after decompressive craniectomy and a preparation method thereof. Background technique [0002] Cranial decompressive craniectomy is one of the commonly used surgical methods in neurosurgery, and it is mostly used in some patients with severe craniocerebral trauma, cerebral hemorrhage, cerebral herniation, or infarction after middle cerebral artery occlusion. A large bone window was left after the operation, and the bone window used for decompression in the early stage became the cause of secondary brain damage in the later stage. If it is not protected, it will bring many adverse effects: it is difficult to maintain stable intracranial pressure, the brain tissue within the bone window can be directly injured by external forces, the brain tissue loses external support and is damaged by frequent displacement during postural chang...

AI Technical Summary

Problems solved by technology

The intracranial pressure gradually establishes a new balance after decompressive craniectomy. If it is not for new intracranial lesions or sudden external force at the bone window, sudden changes in body position, respiratory depression caused by epilepsy, intracranial venous return stasis or severe Cerebral oscillations caused by coughing generally do not cause significant changes in intracranial pressure for no reason. A well-attached protective plate to the edge of the bone window and the head shape is actually the best pressure balance device that is in line with the normal skull protection function, and can effectively avoid cerebral palsy. The displacement keeps the intracranial pressure stable, so these protection devices with pressure measurement and control are complex in structure, high in production cost, inconvenient to use, and unreliable, so they are not practical

These protective devices are rarely used in clinical practice due to the above defects

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