The 27015 A serves urology departments that perform cystoscopy and urethroscopy with rigid instruments. Urology theatres, endoscopy suites, and clinics all use a telescope like this, and the urologist, endoscopy nurse, and theatre team each handle it at a different point in the list.
Urology departments that run several lists in a week value an optic that needs no preparation beyond reprocessing. The straight 0° view suits the first look along the urethra and into the bladder, and the same view follows the channel during urethroscopy, so one telescope covers both examinations. The surgeon sees what lies directly ahead of the tip, so the shaftline and the line of sight are one and the same. A 4 mm shaft passes through a rigid sheath, and the 30 cm length reaches along the urethra into the bladder.
Optics-only construction shapes how a department handles it. Nothing in the telescope needs charging, electrical testing, or adjustment, so pre-use checks focus on the optic and the light cable rather than electronics. The telescope is reusable and reprocessed between cases, so one instrument can serve a whole session without changing how the department prepares it.
Light comes from a separate source. A fibre-optic cable joins the light post to the source, and the fibre-optic carrier inside the shaft takes the light to the tip. The image returns through the rod-lens system to the eyepiece, where the surgeon sees the bladder and urethra through the eyepiece lens.