Apparatus for the transfer of bio-ink

An apparatus for transferring bio-ink to a target, comprising:

• a slide defining a reception area for a fluid film containing heterogeneities;
• a laser associated with a controlled deflection device and an optical unit for focusing a laser beam emitted by the laser in a plane of the fluid film to apply a localized laser pulse, the slide being transparent to the laser beam;
• an imager located and configured to acquire an image of an imaging area of the fluid film, the imaging area being at least five times larger than a nominal cross-section of an inhomogeneity of the fluid film, the slide being transparent in the spectral domain of the imager;
• a computer configured to analyze the acquired image and recognize geometric positions of inhomogeneities in the fluid film and an observable characteristic of each of the recognized inhomogeneities;
• and
• wherein the apparatus is configured to select at least one of the recognized inhomogeneous zones, and control the deflection device to direct the laser beam toward the position of the inhomogeneous zone and trigger the localized laser pulse.