21 CFR §870.3375
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
- (a)Identification. A cardiovascular intravascular filter is an implant that is placed in the inferior vena cava for the purpose of preventing pulmonary thromboemboli (blood clots generated in the lower limbs and broken loose into the blood stream) from flowing into the right side of the heart and the pulmonary circulation.
- (b)Classification. Class II. The special controls for this device are: