When you want to interrupt somebody in a meeting, you can use any of the following sentences.
1. I'm sorry to interrupt, but may I interject?
2. Excuse me for interrupting, but I'd like to ask a question?
3. Pardon me, but may I say something?
4. Sorry, but I have something to add.
As the driver of the meeting, you can agree to interrupt or not.
1. Just a moment, please.
2. May I finish, please?
3. Sure
4. Of course
5. Go ahead
While the interrupt is complete, you should come back to your topic.
1. As I was saying,
2. To get back to my point
3. If I could finish what I was saying