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Double-layer titanium mesh for cranioplasty

A technology of prosthetics and titanium mesh, applied in bone implants, medical science, prostheses, etc., can solve problems such as brain damage

Inactive Publication Date: 2011-12-14
中国人民解放军第四军医大学唐都医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem that the single-layer titanium mesh for skull repair can easily cause brain damage, the present invention proposes a double-layer titanium mesh for skull repair

Method used

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  • Double-layer titanium mesh for cranioplasty
  • Double-layer titanium mesh for cranioplasty
  • Double-layer titanium mesh for cranioplasty

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Embodiment Construction

[0027] The specific implementation process of the double-layer titanium mesh used for cranioplasty of the present invention can be divided into four steps of titanium mesh forming, inner layer fixation, packing and outer layer fixation, as figure 1 shown.

[0028] Titanium mesh forming refers to the processing of flat titanium mesh into a patient-specific titanium mesh consistent with the shape of the patient's skull defect. The specific process is as follows:

[0029] (4) The patient undergoes a thin-layer CT scan of the skull to obtain digital images of the defective skull.

[0030] (5) Three-dimensional reconstruction of the clinical image data by professional software, using rapid prototyping technology to make a resin model of the defective skull.

[0031] (6) The titanium mesh plate was stamped and formed by a CNC machine tool, which was consistent with the shape of the skull on the opposite side of the defect.

[0032] (7) Trim the edge of the titanium stencil to coi...

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Abstract

The invention relates to a double-layer titanium mesh for cranioplasty, which is characterized by comprising an inner-layer titanium mesh and an outer-layer titanium mesh, wherein the outer-layer titanium mesh coincides with the defective edge on the outer surface of the cranial bone; the curvature of the outer-layer titanium mesh conforms to the appearance of the head; the gap between the inner-layer titanium mesh and the outer-layer titanium mesh is filled with autologous bone granules or artificial bone granules; the outer-layer titanium mesh comprises a scalp contact surface and fixed-end grooves; the curvature of the outer-layer titanium mesh conforms to the outer surface of the skull; the edge of the outer-layer titanium mesh coincides with the defective edge on the outer surface of the cranial bone; the outer-layer titanium mesh is fixed on the defective position on the outer surface by screws, so that the outer surface of the cranial bone can be closed; and the outer-layer titanium mesh is provided with holes. The titanium mesh can simultaneously repair the inner surface and the outer surface of the cranial bone, thereby realizing full anatomical and functional recovery and avoiding the brain tissue damage caused by inner surface defects.

Description

technical field [0001] The invention relates to a material implanted in a human body, in particular to a titanium mesh material used for cranioplasty. Background technique [0002] Cranioplasty is an effective method for the treatment of skull defects. A skull replacement material called a titanium mesh is used during the procedure. According to the shape of the patient's skull defect, the doctor made a corresponding titanium mesh. During the operation, the titanium mesh is fixed on the surface of the skull to close the bone window to achieve the purpose of repairing the defect, restoring the integrity of the skull, and protecting the brain tissue. It was found in clinical operations that the traditional repair surgery only forms a protective layer on the outer surface of the skull, while the inner surface of the skull is still missing. The sharp edge of the defect on the inner surface can easily cut the brain tissue when the intracranial pressure is increased. This type...

Claims

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Application Information

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IPC IPC(8): A61F2/28
CPCA61F2/28A61F2002/30001
Inventor 贺世明高国栋赵继培王元赵振伟侯芳
Owner 中国人民解放军第四军医大学唐都医院
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