Replacement blades for Otis urethrotome

Replacement blades for the Otis urethrotome.

Urethrotome:

Otis internal urethrotomy involves blind transurethral sounding of the urethra with an Otis urethrotome and dilation of the urethra to the desired width, adjustable on the urethrotome. Subsequently, a blade is passed through the urethrotome, incising the stretched urethra at the 12 o'clock position. After urethral incision, an indwelling catheter is usually inserted for 2–7 days, optionally with antibiotic prophylaxis. 
Regular urethral dilatations (performed by the patient using suitable intermittent self-catheterization catheters) are effective in preventing/reducing re-stenosis.