Hi. My husband used gentle tape to keep it secured to his stomach when not using. It never fell out. He was very carefull and not very active while that thing was in his stomach. Hoping your father finds a solution. Ps my husband even had it shortened to keep better control over it.

Husband diagnosed 2/13 lower lip scc in situ 2 surgeries never scanned. 8 months later diagnosed soft palate scc stage 4A, tonsil and nodes involved. Hpv positive. Told by ENT small t1 tumor brought in to surgery for tumor removal and neck disection. Aborded surgery. Stage 4!! Finished rads and chemo Jan 2014. Grade 4 ORN of the maxilla, 30 HBOT , sinus surgery , maxilla surgery, buccal flap 4/2015. Doing good. 9-2015 red patch on soft palate , waiting to see.