JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Computer Imaging Sperm Selection (CISS). Two micro- needles are inserted into a droplet of semen to capture fertile sperm by the CISS method (Computer Imaging Sperm Selection). This is a step in the process of in vitro fertilisation. The sperm are viewed through a video microscope and monitored by computer. The computer highlights fertile sperm by their head movement, swim speed & tail thrashing. These sperm are then sucked into the micro-needles and placed on the surface of a human egg for fertilisation (Sub-zonal Insemination or SUZI). In 1994 the first baby was born using this method. CISS was developed by British scientist, Dr Steve Green.
Model release not required. Property release not required.