Abstract: A urinary catheter is described that can be retained inside the body for extended periods. A catheter mating device can connect to the catheter to move the catheter inside of the body or remove it from the body. The catheter includes one or more of: (1) a retention portion having an outer cover, an inner cavity, and at least one structure in the inner cavity that exerts outward force on the outer cover, and (2) an extendable flap at the catheter's distal end. The retention portion and/or extendable flap each are configured to retain the catheter in the proper position inside of a user's body.

Abstract: Described is a urinary measurement catheter (UMC), which has a tube, a distal tip, a bulbar urethral anchor, and a bladder anchor, and that can be used to measure anatomical profiles of the urethra. Using the UMC according to one method comprising the following steps can be used to measure the entire urethral length: (a) insert the UMC through the urethra until the bladder anchor is positioned in the bladder; (b) pulling back on the UMC until the bladder anchor is positioned against the bladder neck; (c) mark or clamp the UMC at the meatus, or otherwise identifying the location of the UMC tube at the meatus; and (d) remove the UMC from the body and measure the distance from the location of the UMC tube as determined in step (c) at the meatus to a distal edge of the bladder anchor.

Abstract: A urinary catheter is described that can be retained inside the body for extended periods. A catheter mating device can connect to the catheter to move the catheter inside of the body or remove it from the body. The catheter includes one or more of: (1) a retention portion having an outer cover, an inner cavity, and at least one structure in the inner cavity that exerts outward force on the outer cover, and (2) an extendable flap at the catheter's distal end. The retention portion and/or extendable flap each are configured to retain the catheter in the proper position inside of a user's body.