A method for packing a fish product (39), and a fish product package. The method comprises packing the fish product (39) in a vacuum package, arranging in said vacuum package an empty space (43), forming in the vacuum package by means of empty space (43) an underpressure, and maintaining the empty space (43) in the package, the underpressure generating pressure on the fish product (39).

A package assembly including a sheath, a pouch, and an outer enclosure. The sheath includes perforations that extend across the sheath along an orientation that is transverse to an elongate dimension of the sheath. The sheath is configured to receive and enclose an implant or a surgical instrument. The pouch has an inner volume that receives the sheath, the inner volume of the pouch being configured to be vacuum sealed. The outer enclosure is designed to receive the pouch. The sheath is made of a material with greater rigidity than the pouch.

Disclosed is a manual pouring device or belonging, suitable for piercing and emptying a granular material contained in a vacuum-sealed package, including: a tubular body, having a duct for the flow of the material, extending from an inlet opening positioned at a first end of the tubular body to an outlet opening for the granular material, positioned at a second end of the tubular body; and a hollow piercing tool having a distal end ending in a pointed tip, and a widened base at the proximal end thereof, rigidly connected to the body. The device further includes a shoulder serving as a stop, configured to come into contact with the wall of the package to stop the pouring device when the wall is pierced by the piercing tool.