PDA closure device
Try this web site for a pdf document of the device used for Cass' PDA closure.
http://www.heartmedical.nl/english/produkten_catalogus/pdfs/cardiology/nit-occlud.pdf
Cass had a 6 x 5mm Nit-Occlud. His PDA appeared to be completely closed after having the device in place for just one hour, according to his surgeon.
Cass was a little groggy and tired, but we left the hospital after just 4 hrs of recovery time and he appears to be doing fine. Wow!! heart surgery as day surgery; isn't modern technology amazing....Now if we could only figure out how to count votes in an election.