I'd considered something similar and the closest I have come in the past is the "holey foley" often mentioned (a few holes in the part of the catheter which would be inside the urethra)
I often look through the catalog at siliconenozzles.com and all of their products seem a bit too long except for this one here which is still long, but perhaps the base end could be shortened - http://siliconenozzles.com/SSND-CNTRD25-6-8mm-18-24Fr-Uniquely-Contoured-Silicone-Sound-SSND-CNTRD25.htm
Thank you for starting the discussion so I could delurk. I wonder how many other folk in our situation are here.
Anyway, the challenges for a female urethra would seem to be these:
- Stent would have to be very small; 1.5"-2" would be all you'd need.
- How would we get it to stay in on its own?
- Since the female urethra does not have any externally protruding parts, the stent could only retreat a tiny bit inside the hole. I would be very afraid to expect to retrieve anything that didn't have a protruding anchor, and leaving bits on the outside is very distracting.
- Much much higher risk of infection due to the narrower path.
A thought I had would be to pierce the end of the stent and thread a very short length of fishing line, etc, with a soft anchor at the end to avoid losing the stent.
Having dealt with one UTI from normal catheter play, I'm squeamish about being a pioneer with experimentation but I am hoping the discussion continues and we have someone chime in with at least one account of a successful female stent.