Ponto Shu-Riacho (Terra)Ponto Yuan-FontePonto Hui-Reunião dos VasosCautionMembro Superior
Depth
00.2–0.5 cun3.0
Perpendicular insertion
Precautions
Strictly avoid the radial artery. If the needle pulses (the desired effect), do not apply additional stimulation.
📍 Location (classical)
At the wrist joint space, in the depression between the radial artery and the tendon of the abductor pollicis longus, at the level of the wrist crease.
🧭 How to find it (practical)
With the palm facing up, locate the point on the transverse wrist crease where the pulsation is felt.
🔬 Anatomy
Tendon of the flexor carpi radialis muscle, abductor pollicis longus muscle. Innervated by the lateral cutaneous nerve of the forearm and the radial nerve.
💉 Needling
Perpendicular (vertical) insertion 0.2–0.5 cun, or 2 to 3 mm.
📜 Etymology
Tai (太), great; Yuan (淵), deep well. Tai means abundance. At this point, the Qi of the meridian is abundant.
