Beijing Zuoyi Technology Co., Ltd.

Beijing Zuoyi Technology Co., Ltd. is the corporate entity behind Left-Hand Doctor (左手医生), a medical AI company founded and led by CEO Chao Zhang, whose stated mission is "building proactive AI to make quality healthcare accessible" . 5Y Capital led its angel round back in 2016 , and in August 2021 it closed a 100 million RMB Series B led by Qiming Venture Partners, with Haier Capital among the followers and Yikai Capital as sole financial advisor . As of Qiming's 2025 updates, its products have moved into real clinical settings: Sichuan Provincial People's Hospital deployed its medical transcription robot across diagnosis scenarios, and it co-launched a pediatric "AI family doctor" with the Children's Hospital affiliated to Chongqing Medical University .