Republican-era physician, otherwise undocumented. Active fl. 1912 (preface dating); writes from his studio Yǎngshēng yuán 養生園 in a Húnán / Húběi locality (the same county as Chén Bǎo 陳寶 and Xiè Yìnán 謝邑南, who wrote co-prefaces). No CBDB record.
Liú’s preserved works:
- Zhìnüè jīyào 治瘧機要 (KR3eh049, 4 juǎn, 1912), a specialised treatise on nüè 瘧 (malaria-like fevers) arguing that nüè is fundamentally a yíngwèi 榮衛 disorder rather than a six-channel disease, in continuity with the late-Míng Jiènüè lùn shū 痎瘧論疏 of 盧之頤 Lú Zhīyí. Engages biomedical quinine therapy and finds it inadequate.
- Jìngbìng yǔ nǎomóyán quánshū 痙病與腦膜炎全書 (KR3eg044, “Complete Book on Convulsive Diseases and Meningitis”), a Sino-Western integrationist work that maps the indigenous jìngbìng 痙病 (convulsive-disease) category onto the Western diagnostic category of meningitis.
The two works together place Liú in the broader Republican-era project of zhōngxī huìtōng 中西匯通 (Sino-Western synthesis) — translating Chinese-medical disease categories into Western clinical-diagnostic vocabulary while maintaining Chinese-medical pharmacology as the principal therapeutic instrument.