Canaliculus Dilators Conical Large Trethowan A nurses chain is a

A nurses chain is a measuring device used to measure the length of a patient's body parts during surgery

It is typically 13 inches in length and consists of a handle and a curved scoop at the end

The Ballenger Nasal Swivel Knife is a surgical instrument used for nasal surgery

curved hook at one end

This item is used to assist in the removal of the first rib during thoracic surgery

Canaliculus Dilators Conical Large Trethowan A nurses chain is aCanaliculus dilators conical large (B111) are used in ophthalmic surgery to widen the tear ducts, known as the lacrimal canals. The dilators help to create a larger opening for the passage of fluids, allowing for better drainage and improved eye health.