Ideal experimental microsurgical methods in vasovasostomy and vasoepididymostomy

: The vasovasostomy with the double-layered end-to-end anastomosis by Silber is a microsurgical ideal method. We think we found experimentally an ideal method for the vasoepididymostomy with the open end-to-side anastomosis and direct spermato-tight microsurgical suture. Specialties of the species rat and dog have to be observed. Restrictions of the anastomotic region lead to infertility.