The Sachse Meatotome is a highly specialized urological instrument designed to perform controlled incisions to widen a narrowed urinary meatus (the external opening of the urethra) or distal urethral strictures. It is utilized during a meatotomy procedure to relieve urinary stenosis, reduce outflow resistance, and allow the seamless passage of larger diagnostic or surgical tools like cystoscopes and endoscopes.

The instrument family is traditionally tied to the Sachse Optical Urethrotome system, which pioneered vision-guided, precise "cold knife" cutting of urogenital scar tissues without deploying high-frequency thermal energy.