Patent ID: 9072618
Filing Date: 2015-07-07
Classification: A61F,A61L

Abstract:
1. A biocorrodable implant system for triggering or accelerating corrosion of an implant after implantation, the implant system comprising: an implant comprising a base body which is completely or partially composed of a biocorrodable metallic material and adhered to the base body is a protective layer consisting of a perforated membrane and control elements positioned within the perforations, wherein the protective layer is not biocorrodable, wherein the control elements are made of a first material, the first material not forming a continuous layer above or below the perforated membrane; and an apparatus configured to transmit an external and ex vivo stimulus to the base body after implantation; characterized in that upon implantation, the control elements form a fluid tight seal with the perforations such that the protective layer is impermeable to bodily medium prior to transmission of the external and ex vivo stimulus, and a swelling capability of the control elements decreases in response to stimulation of the base body by the external and ex vivo stimulus to convert the protective layer to a form which is permeable to the bodily medium, thereby allowing the bodily medium to reach the base body to initiate corrosion of the base body.