Suction nozzle of compression preservation bag

A suction nozzle, for use in a compressive preservation bag made of air-impermeable synthetic resin material and having a check valve made of synthetic resin material at a portion thereof, comprising:

• an elongated body including an insertion section having a flattened substantially cylindrical shape and adapted to be inserted into said check valve;
• wherein said insertion section of said body includes a plurality of openings communicating with an inside of said elongated body;
• said check valve includes an inner portion disposed inside said compressive preservation bag and an outer portion communicating with said inner portion and disposed outside said compressive preservation bag;
• and
• said insertion section of said body includes at least one main-surface opening having an approximately elliptical cross-sectional shape that tapers off toward a front end of said insertion section, communicating with said inside of said body, and extending through said insertion section from one main surface and to another main surface thereof;
• and at least one side opening, communicating with said inside of said body, provided on both sides thereof such that said opening is disposed on said one main surface of said insertion section and said other main surface thereof.