The single link I posted years ago doesn’t contain nearly enough information on this topic. I generally do a much better job researching topics before I post answers these days.
I researched this topic again recently. I mainly used the search terms " surgical metal clip vasectomy". I also used various other key words and came up with some different search results, but he former was the most productive.
Since this thread was created, I have seen at least one man post his post reversal story on this site where he could prove that multiple surgical metal clips were used during his vasectomy procedure - installed, on both sides, installed somewhere on both vas deferens, etc. Such testimonials never made a whole lot of sense to me until I started doing some more research.
Up till more recently, I always assumed vasectomists that we’re using multiple metal clips per side were doing something unorthodox or screwing up. In some cases, perhaps they did screw something to do with the clips up - the number of clips used, the placement of the clips, etc. Whatever the case, I have found some reference that supports the idea that in some cases, the use of multiple surgical metal clips used per side does not seem be completely unorthodox.
Please note - the purpose of this write-up regarding the metal clips topic I am digging into isn’t to be confused with the idea that I support anything that I am posting. Such as - what version is best, what version is better, what version is safer, etc. I am just presenting what I am aware of - presenting some of my research - some of my thoughts - etc.
Here is a link to something I previously described…
See -Fascial interposition
"Clips may be used instead of disolvable sutures"
I came across many diagrams of various vasectomy techniques that are currently known to be used, but I couldn’t download some of the images. That said, this is not a complete list of some of the various diagrams, etc, that I came across during my research. Below is a very limited breakdown of metal clips being used in various variants of closed ended vasectomy techniques and open ended vasectomy techniques.