A urethral prosthesis with prostatic and bulbar segments connected by two types
of ties allows the prosthesis to assume at least two configurations different with
inter-segmental distances adapted to situations where the patient either has or
does not have normal control of the external sphincter. This is particularly useful
for a patient undergoing an anesthetic procedure that affects the external sphincter
muscles. When the muscles are anesthetized, the prosthesis may provide constant
urine voiding, and when the anesthetic effects wear off, the prosthesis may assume
a different configuration to allow the sphincter to reassert control over urinary voiding.