Benson pyloric spreader
A ring-handled instrument with angled, serrated, bulb-shaped tips designed to gently spread the incised muscle fibers of the pylorus during pyloromyotomy.
How it is used
Used to complete the Ramstedt-Fredet pyloromyotomy for infantile hypertrophic pyloric stenosis, spreading the two halves of the incised muscle until the intact submucosa bulges freely.
Clinical tip
Surgeons confirm the two muscle halves move independently before finishing, to rule out an undetected mucosal perforation.
Sources
This entry is part of the Instriq catalog, researched and written per specialty from real web research -- never generated or invented without verification -- and reviewed skeptically and independently before publication. How this catalog is written.
History
Added to the catalog on 2026-10-05.
Dates derived from the project's public version-control history on GitHub, not a live collaborative edit log.