Hi Bob,
Thanks for sending me a model so quickly after the conference. You are incredibly kind to share your work.
I think your model is perfect as is for doing demonstrations. For example, there are two competing companies who are marketing gels to inject into the vasa. Because your model has a thin skin and a very easy to assemble fascia, your model is perfect for a demonstration to investors or a demonstration to doctors who are considering using one of the injectable gels. The simplicity makes it very easy to set up in the field, and the thin skin makes exposing a vas and injecting the gel very easy.
For a more realistic feel for the technique of fascial interposition that most of us currently use, though, I would suggest replacing the Penrose drain fascia with a grafting tape fascia. The grafting tape just feels more realistic and has the slight cling that really simulates the way the fascia slightly adheres to the vas. Michel Labrecque taught me about the grafting tape and I am sure he would be happy if you used the idea.




So, in summary, my suggestions would be
- make the vas longer by just not cutting it into pieces. Include a longer piece of latex tubing to easily change with each practice. The user can just pull on the roll from the “scrotal side” of the model and more vas will come down.
- replace the Penrose drain with grafting tape for a more realistic feel during the cleaning of the fascia and the actual tying of the fascia interposition. This step would not be necessary if the model is just being used for demonstrations of Signati tools or demonstrations of injections.
I hope these suggestions are helpful.
All the best,
John and Michel