Bruce confirmed there was still interest in Shaun Maloney from Chicago Fire and Andre Gray from Brentford.
“We are still in touch with Chicago Fire but all is quiet at the moment,” said Bruce. “The Gray deal is still alive but he is their player and it’s their prerogative but it’s a stalemate.”
Bruce said his Championship side will have to improve in their league form after they needed a shoot-out to defeat a resilient Accrington.
It was goalless after normal time before Arsenal loanee Chuba Akpom cut inside and fired Hull ahead in the 92nd minute.
Matt Crooks levelled with a header before substitute Greg Luer was unmarked to head the Tigers back in front after 108 minutes.
Terry Gornell equalised again for the League Two side after 115 minutes and then came sudden death.
Harry Maguire and David Meyler both missed from the spot for Hull while Sean McConville and Billy Kee did not score with Crooks missing the decisive penalty.
“We made hard work of it but there were some good performances,” said Bruce. “Moses Odubajo did well on his debut, he is going to be a good player and is enthusiastic.
“Chuba Akpom and Greg Luer both are only young and I am delighted for all of them. They are only boys and the experience like this will do them good.
“When we went in front, I expected to see it out but some sloppiness crept in and it nearly cost us. We will have to play better.”
Stanley boss John Coleman said: “You have got to think that one of their player’s wages will pay my squad for a month but we showed a great spirit and character to keep coming back.
“I do not like losing and it’s immaterial who you play but if you miss three penalties you are going to lose.
“It’s a shame for Crooksy as he was our man of the match but I wouldn’t have him taking a penalty – I only picked the first five. Saying that I wouldn’t have thought Billy Kee and Sean McConville would miss them so it’s not all Crooksy’s fault.
“We do need to lose the ‘nearly men’ tag though and the players are disappointed. I won’t congratulate them for losing but will congratulate them for playing well against a strong team.
“Football is cruel and penalties are a lottery but they scored more than us and we are out of the cup. What we have to do now is keep hitting the level we played with tonight and, if we do, we will be okay.”