Fixing structure of human body implantation device and retina prosthesis having same

Abstract

The invention belongs to a medical device, and particularly relates to a fixing structure of a human body implantation device, and a retina prosthesis having the same. The fixing structure includes fixing nail structures and an implantation member; each fixing nail structure includes a nail point and a nail body, wherein the nail point penetrates the implantation member and is arranged on a humantissue, the length of a fixing portion of the fixing nail can be adjusted through an elastic member, and in this way, the fixing structure can meet the implantation area thickness demands of differentpatient individual differences of different implantation parts, and is good in adaptability. Each fixing nail has a nail cap; a guiding member for guiding the elastic member is arranged below the nail cap; the guiding member can allow convenient and fast installation of the elastic member, can allow the elastic to possess a high reliability during contraction, and can prevent deflection of the elastic member. Each nail point has an anti-releasing structure for preventing the nail point from being released from the human tissue, and then the nail point can be prevented from being released fromthe human tissue effectively. In addition, a cross section of a nail head of each fixing nail structure is of a polygon structure which can facilitate operation of the implantation device while the fixing nail is implanted.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a fixing structure for human implantation equipment and a retinal prosthesis having the same. Background technique [0002] In clinical treatment, it is often necessary to implant some artificial devices into the human body for the rehabilitation of patients or to help patients acquire certain aspects of physiological skills. [0003] In some traditional implantation procedures, sutures are used for fixation, which is difficult to operate, takes a long time, and has a high risk factor. [0004] There are also some existing technologies that use fixation nails to fix the implanted device in human tissue, but due to different implantation positions or different thicknesses of implantation positions due to individual differences, the requirements for the length of the fixation area of ​​the fixation nails are also different. For example, the retinal prosthesis is generally fixed in t...

AI Technical Summary

Problems solved by technology

In order to solve this problem, an elastic buffer part can be installed on the fixing nail, and the length of the fixing area of ​​the fixing nail can be adjusted by relying on this part, but the installation of the elastic buffer part is often not reliable. Easy to tilt and affect the reliability of the nail

[0005] In addition, the fixation nails are often not firmly connected to the implanted device during implantation, which affects the speed and effect of implantation

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