Welcome @debora29- Yes within the past year and it is exciting but it isn't a promise for everyone. Trials have shown mixed reviews with successes. I think that it depends on what caused your emphysema and your prognosis. I have to tell you that when I googled it the information that I think you want was very difficult to pin point because it is so new. So I encourage you to google it so you can pinpoint what you want to know. The valves actually look like a little high end glass lamp shade.
The following is what I picked out for you to review but it is by no means close to what we might all want to know. I'm not suppose to share any adds because this site is neutral to products but one of these sites might be an ad only because it was one of few sites that I found had good information.
There have been successes but there have been failures too. Please use caution when reaching out for something that might be new like this, unless of course your doctor recommends it. And as you point out is does have it's side effects. Let me know if this is the way you want to go. Have you discussed this with your doctor?

https://mylungsmylife.com/ https://erj.ersjournals.com/content/44/Suppl_58/P3713