1. Kuroshitsuji #001
2. Tales Of The Abyss #002
3. Macademi Wasshoi #001
4. Naruto: Shippuuden #078-079
5. Tales Of The Abyss #001

Chakra Enjintou (Chakra Scalpel)
First Performed by: Kabuto
Type of Technique: NinJutsu
Chapter: 164

A Ninjutsu technique used, primarily for field surgery. The ninja concentrates a powerful aura of chakra around their hand, creating a blade capable of tearing through muscles and arteries, or breaking bone, without actually breaking the skin of the person they're using it on. When used offensively, in combat, it is difficult to concentrate on the length and power of the scalpel, making it harder to successfully hit an enemy's arteries, ensuring a kill.

First performed by Kabuto in chapter one hundred and sixty-four. A medical ninja technique, Tsunade can also perform it.