Sealing structure of implanted type device and manufacturing method of sealing structure

Abstract

The invention provides a sealing structure of an implanted type device and a manufacturing method of the sealing structure. The sealing structure comprises a ceramic substrate and metal pillars, wherein the ceramic substrate is provided with an upper surface and a lower surface, and one or more through holes penetrating through the upper surface and the lower surface are formed in the ceramic substrate; the through holes are filled with the metal pillars, and concave-convex structures are formed on the contact interfaces between the metal pillars and the ceramic substrate. According to the sealing structure of the implanted type device, the concave-convex structures are formed on the contact interfaces between the metal pillars and the ceramic substrate, and therefore the contact areas between the metal pillars and the ceramic substrate can be increased. Compared with through holes with radii unchanged in the prior art, by means of the sealing structure, moisture, gas or other elements can be inhibited from leaking out of the sealing structure along the contact interfaces between the metal pillars and the ceramic substrate more effectively, and therefore air-tightness of the sealing structure can be improved.

Description

technical field [0001] The invention relates to a sealing structure of an implanted device and a manufacturing method thereof. Background technique [0002] At present, implantable devices have been widely used in various aspects such as restoring body functions, improving the quality of life or saving lives. Such implantable devices include, for example, implantable cardiac pacemakers, deep brain stimulators, cochlear implants, artificial retinas, and the like. [0003] Since implantable devices need to be implanted in the body and remain in the body for a long time, the implantable devices implanted in the body need to face the complex physiological environment in the body, which is often harsh. It may interact with surrounding tissues and organs. For example, the materials of implantable devices will undergo physical or chemical reactions such as aging, degradation, cracking, and re-crosslinking, which will negatively affect the implanted object, such as causing adverse ...

AI Technical Summary

Problems solved by technology

[0003] Since implantable devices need to be implanted in the body and remain in the body for a long time, the implantable devices implanted in the body need to face the complex physiological environment in the body, which is often harsh. It may interact with surrounding tissues and organs. For example, the materials of implantable devices will undergo physical or chemical reactions such as aging, degradation, cracking, and re-crosslinking, which will have negative effects on the implanted object, such as causing adverse biological reactions such as inflammation.

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