Most likely the stones will nit pass through the catheter, but collect at the bottom of the bladder. The catheter inlet is held above the bottom of the bladder by the retaining bulb, and the holes come from each side.
So, if he passes stones into the bladder, they will sit there until the bladder is removed, but should be no problem.
Age 58, PSA 4.47 Biopsy - 2/12 cores , Gleason 4 + 5 = 9
Da Vinci, Cleveland Clinic 4/14/09 Nerves spared, but carved up a little.
0/23 lymph nodes involved pT3a NO MX
Catheter and 2 stints in ureters for 2 weeks .
Neg Margins, bladder neck negative
Living the Good Life, cancer free 6 week PSA <.03
3 month PSA <.01 (different lab)
5 month PSA <.03 (undetectable)
6 Month PSA <.01
1 pad a day, no progress on ED. Trimix injection
No pads, 1/1/10, 9 month PSA < .01
1 year psa (364 days) .01
15 month PSA <.01