CFR › Title 21 › Part 884 › §884.365021 CFR §884.3650Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. A fallopian tube prosthesis is a device designed to maintain the patency (openness) of the fallopian tube and is used after reconstructive surgery.(b)Classification. Class II (performance standards).