Victor-G & Company offers Tissue cutting Cannula / Sharpened Tubes. Victor-G & Company is an ISO 9001:2000 certified company and manufactures all types of hypodermic needles, etc. Tissue cutting cannula / sharpened tubes are very critical components used in many medical devices for procedures, such as coronary by-pass. Sharpened tubes are also used in biopsy devices and other tissue sampling procedures, such as corneal and cartilage harvesting. The tissue cutting cannula / sharpened tubes are devices that are developed that require sharp edges, bevels, or other sharp features on the ends or sides of tubes.