Patent ID: 7316896

Claim:
An egg freezing and storing instrument comprising: an egg freezing and storing tube which is made of a liquid nitrogen-resistant material and can be heat-sealed; and a metal cylindrical protection member for protecting said egg freezing and storing tube, wherein said egg freezing and storing tube comprises a body part; an egg-storing small-diameter part having a smaller outer diameter than said body part and having an inner diameter of 0.1 mm to 0.5 mm; a front-side heat-sealable portion at which said small-diameter part can be heat-sealed at a front side of said small-diameter part after an egg is collected in said egg-storing small-diameter part thereof; and a rear-side heat-sealable portion at which said body part can be heat-sealed at a rear side thereof, after said egg is collected in said egg-storing small-diameter part; and said cylindrical protection member has a tubular part for accommodating said front side of said small-diameter part of said egg freezing and storing tube; and a semi-tubular part for accommodating a portion of said small-diameter part of said egg freezing and storing tube not accommodated in said tubular part and a front portion of said body part.