Dòu Jié 竇傑 (zì Hànqīng 漢卿; universally known in the medical tradition as Dòu Hànqīng 竇漢卿; hào Mò’ān 默庵, 1196–1280, 元), Jīn–Yuán transitional acupuncturist and statesman of Féixiāng 肥鄉 (ancient Míng 古洺, in modern Héběi). Served first the Jīn court, then rose under the Mongols to the title Tàishī 太師 (Grand Preceptor). Author of the foundational Zhēn jīng zhǐnán 針經指南 (KR3ee017), comprising the Biāoyōu fù 標幽賦 — the canonical post-Sòng acupuncture didactic rhapsody — and the Liúzhù bāxué 流注八穴 doctrine of eight confluent acupoints connecting the twelve regular channels with the eight extraordinary vessels (公孫–衝, 列缺–任, 後谿–督, 臨泣–帶, 內關–陰維, 外關–陽維, 照海–陰蹺, 申脈–陽蹺). His work was printed posthumously in Yuánzhēn 1 (1295) by his disciple Niú Liángyòu 牛良祐. Dòu’s bāxué doctrine is the conceptual basis of all post-Yuán Língguī bāfǎ chronoacupuncture and remains foundational to modern East-Asian acupuncture practice. CBDB has no entry matching with confidence; standard reference is Yuán shǐ j. 159.