Capsulorhexis device (10), comprising: a resistive heating element (12) comprising an electrically resistive wire (14) having a first and second ends, the wire being shaped to include a loop and so that the first and second ends are adjacent and extend away from the loop to form a guide section； an insulating part comprising an electrically insulating material (17) covering a part of the wire (14)； and a handle (19) that is fixedly coupled to at least a part of the guiding section, a tubular insert cartridge (22) configured to fit around the handle part (19) and to substantially contain the resistive heating element ( 12) when the resistive heating element (12) is in a retracted position, such that the resistive heating element is retractable by retracting it into the insertion cartridge and can expand to its original shape when ejected from the cartridge, characterized in that The loop of the resistive heating element (12) comprises a wire having superelastic material properties and because said wire is a bare wire to place it against the anterior lens capsule of an eye (32), and surrounding the insulating part comprising a electrically insulating material (17) completely or partially the wire guiding section that separates the first and second ends of the wire.Dispositivo de capsulorrexis (10), que comprende: un elemento calefactor resistivo (12) que comprende un alambre eléctricamente resistivo (14) que presenta un primer y segundo extremos, estando conformado el alambre de modo que incluya un bucle y de modo que el primer y segundo extremos sean adyacentes y se extiendan alejándose del bucle para formar una sección de guiado； una parte aislante que comprende un material eléctricamente aislante (17) que cubre una parte del alambre (14)； y un mango (19) que se acopla fijamente a al menos una parte de la sección de guiado, un cartucho de inserción tubular (22) configurado para encajar alrededor de la parte de mango (19) y para contener sustancialmente el elemento c
