A fluid cartridge (100) for dispensing a fluid, the fluid cartridge (100) comprising: a cover (102) for housing the fluid, the cover (102) comprising a lower part (302) and an upper part (300) , in which the lower part (302) and the upper part (300) are connected in one piece to each other; a pressure feed interface (104) configured to be coupled to a pressure feed unit (106) to feed the fluid in the cover (102) with pressurized means; a fluid dispensing unit (108) configured to generate particles, particularly fluid particles, at the time of feeding the fluid into the cover (102) with pressurized medium; a fluid path (110) in the cover (102) that is open or can be opened to allow the particles, particularly fluid particles, to leave the cover (102) through the fluid path (110); the upper part (300) has at least one predetermined breaking structure (800) configured to break irreversibly to exclude the subsequent closure of the fluid path (110) again, applying a breaking force to open the fluid path (110 ) on the cover (102) at the time of breakage; wherein the at least one predetermined breaking structure (800) comprises at least one inclined plate (802), configured as a basically flat sheet that protrudes at an angle that differs from 90 ° from a flat upper surface of the upper part (300), which protrudes outward from an upper surface of the upper part (300) to be breakable by bending at the time of application of the breaking force; characterized in that an anchor section (804) that anchors the at least one predetermined breakage structure (800) on an upper surface plate (806) of the upper part (300) is selectively mechanically weakened compared to an environment (808) of the upper surface plate (806).Un cartucho de fluido (100) para dispensar un fluido, comprendiendo el cartucho de fluido (100): una cubierta (102) para alojar el fluido, comprendiendo la cubierta (102) una parte inferior (302) y una parte superior (300), en el que la parte inferior (302) y la part