Cartilage sample excision instrument - has head with cutting strips extending inwards to secure cylinder while turning

摘要

The excision instrument takes samples of cartilage by shearing a cylinder extending through all cartilage layers from its base surface. At the head it has strips with cutting edges (1) extending inwards and which secure the cylinder as the instrument is turned, parting it off from the base surface. The design ensures that a sample of constant size is taken.