| 摘要 |
The invention relates to a system for the prevention of needle tract bacterial infections, comprising:
- a percutaneous surgical instrument (1) percutaneously introducible into a tissue (3) of a patient, such as a biopsy needle, and having an outer surface made of an electrically conductive material;
- a contact electrode (4) applicable to the skin (3a) of a patient;
- a silver coating or silver element (P) arranged on or forming part of the instrument (1), and configured, sized and provided so as to break down by means of electrochemical release when a current is applied thereto, releasing silver ions into its surroundings; and
- an electric current generator (2) arranged and configured for generating a current and inducing the temporary circulation thereof between the instrument (1) acting as an anode, the tissue (3) and the contact electrode (4) acting as a cathode, respectively, with a magnitude and duration which are determined for producing a massive and sudden release of silver ions for the purpose of preventing post-treatment bacterial infections. |
