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MENTAL MODEL · M2193

Nine Needles / Jiu Zhen

Nine Needles / Jiu Zhen
TechnicalHigh supportTraditional Chinese Medicine
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Updated 2026-08-01

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INTRODUCTION

English translation pending.

CORE DEFINITION

Nine needle forms recorded in the classical Chinese medical canon, each shaped for a specific tissue depth and clinical task. They include the chan needle for shallow pricking, the yuan needle for pressing and massage, the di needle for pressure, the feng needle for bloodletting and the hao needle, the ancestor of the modern acupuncture needle. The set embodies a principle of tool specialisation: the instrument is selected to match the site, depth and nature of the disorder rather than the practitioner's habit.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Match Tool to Task: pick the instrument that fits the site and depth of the problem - Avoid Hammer Bias: stop forcing one familiar tool onto every problem you meet - Differentiate First: decide what the disorder actually is before reaching for an instrument

anchor

Anchor fast decisions

Disorders differ in location, depth and nature, so a single instrument cannot reach them all with equal effect. The shape and gauge of the needle determine whether the intervention lands where it should and whether it does the intended work. Making the classification explicit forces a deliberate selection instead of a default one, so the tool follows from the diagnosis rather than from familiarity or convenience.

MINIMUM ACTION

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Source support: Explicit

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    baike.baidu.comhttps://baike.baidu.com/item/%E4%B9%9D%E9%92%88%E8%AE%BA/407939ZH · Explicit
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