A piece of orthosis, about 15 x 2 cm in size, is rotated around its longitudinal axis and placed in a universal strap. On one end is a hole for the catheter (photo below). The catheter is inserted through the hole (photo above). Angling the wrist upwards prevents the catheter from sliding through the hole and it can be inserted into the penis (photo below). Then the wrist is angled back, the catheter slides through the hole and the user can grip it farther out and insert it a bit more.
Carin Bergfeldt, the user’s occupational therapist
This tip is from 2016