Heating Lumbar Therapy Cushion (Model: AST-622, AST-622B, AST-623, AST-623B)

K211942 is the FDA 510(k) clearance record for Heating Lumbar Therapy Cushion (Model: AST-622, AST-622B, AST-623, AST-623B), a class II device, cleared for Shenzhen Osto Technology Company Limited on 2021-12-13 under FDA product code NGX (Stimulator, Muscle, Powered, For Muscle Conditioning). FDA's definition for product code NGX reads: "A powered muscle stimulator for muscle conditioning is a device used for other than medical purposes to apply an electrical current to electrodes on a person's skin to temporarily affect the stimulated muscle's contractile properties...". FDA records list 12 510(k) clearances for Shenzhen Osto Technology Company Limited, from 2014-11-12 to 2022-07-07. As of 2026-09-10, FDA records show no recalls naming K211942.