DA-102, LN2 Level Alarm System
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LN2 Level Alarm

The Korean Andrological Society, Kor J Androl. Vol. 24, No. 2, August 2006
Fertilization, Embryonic Development, and Pregnancy Rate using Fresh and FrozenTesticular Sperm in Hypospermatogenesis
Fertilization, Embryonic Development, and Pregnancy Rate using Fresh and FrozenTesticular Sperm in HypospermatogenesisYong-Seog Park, Sun-Hee Lee, Sang Chul Han, Su Jin Choi, Jin Hyun Jun,Mi Kyoung Koong* and Ju Tae Seo†Laboratory of Reproductive Biology and Infertility, Departments of *Obstetrics and Gynecology,†Urology, Cheil General Hospital & Women's Healthcare Center,Sungkyunkwan University School of Medicine, Seoul, Korea
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Materials and Methods:
Compositions
Cryomagic Freezer consists of a chamber, control unit, digital LN2 pump & LN2 dewar and optional PC & software
Control Process
1. Microprocessor-base control unit commands digital pump preset freezing program.
2. Heated liquid nitrogen is transferred from a dewar to the chamber through the digital pump.