Arterial introducer sheath
A short flexible plastic tube with a hemostatic valve at the proximal end and an internal dilator, designed to facilitate repeated percutaneous access to a vessel.
How it is used
Used in endovascular procedures to establish and maintain stable vascular access, allowing exchange of catheters, guidewires, and devices.
Clinical tip
The French size should be chosen based on the largest device that will need to pass through during the planned procedure.
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.