Anaesthetics India Pvt. Ltd offers Mac-Rao Blades. Anaesthetics India Pvt. Ltd is ISO 9001: 2000, ISO 13485: 2003 certified. Mac-Rao Blades are the modification to the Macintosh blades. In Macintosh blades, a channel has been incorporated to pass through an endotracheal tube. This Mac-Rao blade is manufactured using high quality stainless steel in various sizes. They find usage in nursing home & hospitals.