Tru-cut-type liver core biopsy needle
A spring- or manually-fired core-biopsy needle (14-16G) with a notched inner stylet and outer cutting cannula that, when fired, shears off a cylinder of liver tissue into the notch for histology.
How it is used
Intraoperative targeted liver biopsy of a focal lesion or background parenchyma, under direct vision or ultrasound guidance, during open hepatobiliary surgery.
Clinical tip
The classic two-handed Tru-cut mechanism limits how precisely it can be aimed while separately handling an ultrasound probe, which has driven the development of one-handed disposable alternatives.
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 2026-10-16.
Dates derived from the project's public version-control history on GitHub, not a live collaborative edit log.