Skip to main content
CSTSetup
Surgical instrument · Cutting & Dissecting

Kerrison Ejector Rongeur

Also called Upbiter, Up-Biter, Kerrison Rongeur

Official 1 photo
Length
8 in
Setups
11

A pistol-grip rongeur with a long shaft and a guillotine-style tip: the top piece slides forward to bite against the footplate. Tips are angled 40 or 90 degrees, up- or down-biting, with bites of 1-6 mm. Ejector models have an ejector pin or bar at the jaw.

Primary uses

What this instrument is on the table to do.

Bites away bone and lamina, mainly in spine surgery.

Sizes & variants

The lengths, angles and patterns it comes in.

8″203 mm

Bites 1-6 mm; 40 or 90 degree up- or down-bite. Micro ejector Kerrisons: 40 degree up-bite, 2-5 mm bites, 9 mm jaw opening, bar or pin ejector.

CSTSetup Pro

There is more on this card

The photos, the description, the uses and the sizes are free for everyone. The 3D model, the parts that only come from years at the table, and the testing that gets you ready for the CST are Pro. See what is included

InsightsWhat experienced techs know about it.Included with Pro
CautionWhere this one bites, and how to stay ahead of it.Included with Pro
Inspection & testingWhat to check before it reaches the field.Included with Pro
Care & reprocessingHow it comes apart, gets cleaned and goes back to sterile.Included with Pro
Setups using this instrumentThe 11 setups this instrument is laid out on, with photos of each table.Included with Pro
CSTSetup Pro

Know this one cold. Then the other 2,881.

You are reading the free half of this card. Pro opens what only comes from years at the table, and turns all 2,882 of them into something you get tested on until you are quick.

  • Cautions, inspection checks, how to pass it, and every operation it is laid out for
  • Every setup this instrument is laid out on, with photos of each table
  • Flashcards that bring it back right before you would forget it
  • Practice tests and timed exams over all 259 setups
Sign in

Cancel anytime · One account, web and apps

Read the General setups, free for everyone

From the field

Know this instrument?

Add your photos & notes

Submissions stay private and are reviewed by our team. An accepted photo joins this instrument's gallery with your credit.

Only used to credit your contribution. Never shown or shared.

Drop your file here, or browse