IMA Ratchet Mechanism. This device works only with the IMA System. The Bookler® IMA System is designed to allow gentle, controlled lifting of the chest wall for harvesting the Internal Mammary Artery. The IMA Ratcheting Mechanism features a micro twist ratchet that permits controlled lifting in increments less than 1mm. Each hook is lifted independently for the greatest control. Easy to set up, simple and economic to use.
For use only with IMA Hook.