Will This Change How Vasectomy Works?

When you think of birth control, we've been educated (or self-educated) about condoms and contraceptive pills. A more permanent solution would be vasectomy. For those who don't know what vasectomy is, here is a graphical explanation.

I know, terrifying right? Having to snip and take away a man's fertility is like removing his balls altogether. Of course in scientific perspective, vasectomy does not affect one's masculinity. But in men's mentality at the age of 40s to 50s, fertility links to their pride.. However, with the enhancement of technology, vasectomy may not be as terrifying anymore. 

Because, a German carpenter invented a valve

Imagine, a valve which you can control using you smartphone fitted onto the man's sperm duct. For the first time, man can now control whether to use their sperm or not. However, there have not been any rumors real world actual applications.. yet. Hence, there are a lot of concerns about health risks.

Damn, imagine a user turned on the valve after a very long time.

Sources: 

http://www.telegraph.co.uk/news/worldnews/europe/germany/12083673/German-carpenter-invents-on-off-contraception-switch-for-sperm.html