Abstract: The invention provides a device for secure support, storage and/or transport of a tissue graft or an implant, which allows for precise microscopic investigation and/or evaluation and quality control of the tissue graft or implant during processing as well as prior to introduction into a living body. The main body of the device is a cannula or a cartridge comprising rectangular shape, preferably with rounded edges, having two opposite openings of different sizes and shapes. The first opening has a round shape with a diameter suitable for connection to a tube or a syringe nozzle. The second opening has an elliptical, round, biconvex or rectangle shape, in the latter case preferably with rounded edges that is small enough to be inserted into a small surgical incision.