A 3D printed skull craniectomy bone window protection device after decompressive surgery and its preparation method

Abstract

The invention discloses a 3D printed cranial bone window protection device and a preparation method after decompression. Inconvenience and other problems, it has a precise, safe, and good adaptability to the patient's body surface structure, and is convenient to wear, good in application, uniform in force, high in comfort, good in stability, beautiful, economical, and environmentally friendly. and other advantages; its technical solution is: including a protective plate and a fixing device, the protective plate includes an outer layer and an inner core layer formed by 3D printing, and the inner core layer is placed inside the outer layer; the shape of the outer layer is consistent with that of the bone The outer surface of the outer layer has a fixing device for stabilizing the bone window protection plate; the edge of the outer layer is thickened; the outer layer and the inner core layer are provided with a plurality of ventilation holes , the inner core layer also has a plurality of small holes to strengthen the combination between the inner core layer and the outer layer.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a 3D printed cranial craniectomy bone window protection device after decompressive surgery and a preparation method. Background technique [0002] Decompressive skull craniectomy is one of the commonly used surgical methods in neurosurgery, and it is mostly used in some patients with severe traumatic brain injury, cerebral hemorrhage, cerebral hernia, or infarction after middle cerebral artery occlusion. A large bone window remained 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 force, and the brain tissue loses external support and is damaged due to frequent displacement during body ...

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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