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Medical device and manufacture thereof

A technology of medical devices and coatings, applied in pharmaceutical formulations, medical science, prostheses, etc., which can solve problems such as delayed corrosion or biodegradation, loss of mechanical stability, and complex manufacturing

Pending Publication Date: 2021-11-26
B BRAUN MELSUNGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both situations lead to a considerably more complex manufacture of the medical device, which requires good fit and adjustment of the device dimensions
[0005] Second, in the case of large medical devices, degradable polymer coatings are only able to delay the onset of corrosion or biodegradation
Large amounts of magnesium will then accelerate degradation due to the large surface, which leads to a rapid loss of mechanical stability

Method used

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  • Medical device and manufacture thereof
  • Medical device and manufacture thereof
  • Medical device and manufacture thereof

Examples

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Embodiment Construction

[0123] figure 1 An embodiment of the medical device 10 according to the present invention is shown schematically. The medical device 10 includes a device body 12. The device body 12 preferably includes or comprises a material that is easy to corrode or biodegradable, such as magnesium or magnesium alloy. Further, the medical device 10 includes a worm coating 14. The apparatus body 12 covers the insect rubber coating 14 only or completely (as shown). Preferably, the insect coating 14 has a thickness from 0.1 μm to 20 μm.

[0124] By way of example, the medical device 10 can be in the form of a backbone for a bone.

[0125] figure 2 A cross-sectional view of the strut 11 of the medical device 10 of the present invention is shown schematically. The pillar 11 covers a insect rubber coating 14. The pillar 11 preferably includes or comprising a material that is easy to corrode or biodegradable, such as magnesium or magnesium alloy (eg, "WE43" or "resoloy").

[0126] The strut 11 can c...

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Abstract

The invention relates to a medical device (10) comprising: a device body (12) preferably comprising a material susceptible to corrosion or bio-degradation and a shellac coating (14), wherein the device body (12) is at least partially covered by the shellac coating (14), wherein the shellac coating (14) has a thickness from 0.1 [mu]m to 20 [mu]m. Further, the invention relates to a method for manufacturing the medical device.

Description

Technical field [0001] The present invention relates to a medical device, comprising a device body and a shellac coating. Background technique [0002] Magnesium due to its material properties (such as low weight as well as degradation or biodegradation in vivo into innocuous corrosive degradation products) in the medical field as a promising material. On the other hand, in a rapid and uncontrollable corrosion or biological degradation in vivo result in the release of a large amount of hydrogen is still a serious risk. [0003] To delay the magnesium corrosion or biodegradation, magnesium may be directly modified, for example by the surface of the magnesium is converted into magnesium fluoride (MgF 2 ) Or a layer less prone to corrosion or other inert magnesium compound biodegradable. However, during the manufacturing process (manufacturing process requires the step of deforming the medical device), the magnesium compound layer thus often fragile, and thus peeling or tearing. In ...

Claims

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Application Information

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IPC IPC(8): A61L27/04A61L27/34A61L31/02A61L31/10
CPCA61L27/34A61L31/10A61L27/047A61L31/022C08L93/02A61L31/146A61L2400/00A61L2420/02
Inventor A·斯托尔H·沃布肯
Owner B BRAUN MELSUNGEN AG
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