Degradable skull lock capable of improving skull healing ability

A skull and ability technology, applied in the field of degradable skull lock, can solve the problems of slow healing, infection, and non-degradable skull, and achieve the effect of promoting healing, preventing infection, and inhibiting bacterial growth

Pending Publication Date: 2017-07-11
INST OF METAL RESEARCH - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of slow skull healing, infection, and non-degradability in the use of current skull

Method used

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  • Degradable skull lock capable of improving skull healing ability
  • Degradable skull lock capable of improving skull healing ability
  • Degradable skull lock capable of improving skull healing ability

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] Example 1

[0049] The skull lock of this embodiment adopts structure one, in which the middle layer of the upper and lower lock plate materials is taken from rolled pure magnesium (purity 99.99%) plates. A Φ5mm×0.8mm lock plate with toothed edges is prepared by stamping, and 4 first through holes and 4 second through holes with a diameter of Φ0.5mm are drilled. The upper and lower ceramic layers of the lock plate are made of original It is obtained by a high-temperature ceramization method, and the thickness of the ceramic layer obtained is 20 μm. The connecting wire adopts pure magnesium (purity of 99.99%) wire with a diameter of 0.4mm to connect the upper and lower lock plates. The functional wire selects pure magnesium (purity 99.99%) wire with a circular cross-section, a diameter of 1mm, and a third through hole diameter of 0.5mm. The beams are arranged continuously, with a thickness of 0.2mm and a width of 0.5mm. The surface of the connecting wire, the functional ...

Example Embodiment

[0051] Example 2

[0052] The skull lock of this embodiment adopts structure two, in which the middle layer of the upper and lower lock plate material is taken from the rolled ZK60 magnesium alloy (purity 99.9%) plate. A Φ8mm×1mm lock plate with a stopper with a diameter of 0.5mm and a toothed edge is prepared by stamping, and 4 first through holes and 4 second through holes with a diameter of Φ0.5mm are drilled. The lock plate The upper and lower ceramic layers are formed by an in-situ high-temperature ceramization method, and the obtained ceramic layer has a thickness of 50 μm. The connecting wire uses polylactic acid wire with a diameter of 0.4mm to connect the upper and lower lock plates. The functional wire selects ZK60 magnesium alloy (purity of 99.9%) wire with a circular cross-section with a diameter of 1.5mm and a third through hole diameter of 0.5mm. The beam is arranged continuously, with a thickness of 0.3mm and a width of 0.6mm. The surface of connecting wire, fun...

Example Embodiment

[0054] Example 3

[0055] The skull lock of this embodiment adopts structure three, in which the middle layer of the upper and lower lock plate materials is taken from a rolled magnesium-strontium alloy (purity 99.9%) plate. A Φ12mm×1.5mm lock plate with toothed edges is made by stamping. The middle protrusion of the lower lock plate has a height of 2mm and a width of 2mm. The upper and lower lock plates are drilled with 4 first through holes with a diameter of Φ0.7mm And 4 second through holes. The upper and lower ceramic layers of the lock plate are obtained by electrodeposition, and the thickness of the obtained ceramic layer is about 50 μm. The connecting wire is made of magnesium-strontium alloy (99.9% purity) wire with a diameter of 0.6mm to connect the upper and lower lock plates. The surface of the connecting wire and the functional wire adopts the electrodeposition method to prepare the calcium-phosphorus coating.

[0056] The skull lock in this example was used to fix ...

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Abstract

The invention provides a degradable skull lock capable of improving skull healing ability, which aims to solve the problems of skull defect rapid healing and infection. Each lock plate of the skull lock adopts a degradable composite material with a sandwich structure; a connecting filament adopts a pure magnesium or magnesium alloy or degradable macromolecular material; the upper lock plate and the lower lock plate are locked by a connecting filament mode; and a functional filament is designed between the upper lock plate and the lower lock plate, and a skull gap is filled with the functional filament. The degradable skull lock capable of improving the skull healing ability can solve the problem that the existing implant material has low bioactivity and the problem of infection, can accelerate skull healing and reduce the occurrence rate of infection, and can be biodegraded.

Description

technical field [0001] The invention relates to a cranial lock for neurosurgical treatment, and in particular provides a degradable cranial lock that improves the healing ability of the skull. Background technique [0002] Skulllock is a medical device used for bone flap fixation after craniotomy. After craniotomy, the cranial lock can quickly meet the clinical fixation requirements of the bone flap. It is easy to operate, fast to tighten, and firmly clamped, saving operation time. [0003] At present, the cranial locks used clinically are divided into two types according to the material, which are non-absorbable and absorbable. The non-absorbable cranial lock is made of titanium alloy. Due to its biological stability in the body, it needs to exist in the human body for a long time. This cranial lock is not suitable for children before puberty. For adults, the long-term existence of cranial lock can also cause a certain degree of discomfort. Absorbable cranial locks are m...

Claims

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Application Information

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IPC IPC(8): A61B17/68
CPCA61B17/688A61B2017/564A61B2017/00867A61B2017/00831
Inventor 于晓明谭丽丽贾旺陈军修杨柯李钋胡旭曹强陈鹏
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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