Sterilising Drum (Drum Length x Drum Width: 342.9 x 241.3mm) (13.5 x 9.5inch) Royal National The Kocher-Langenbeck Retractor Medium is

The Kocher-Langenbeck Retractor Medium is a surgical instrument used to hold back the edges of a wound or incision in order to provide a better view of the surgical site

The serrated / toothed design helps to provide a secure grip

which are used to control the direction of the suture needle

particularly when performing joint replacements

Sterilising Drum (Drum Length x Drum Width: 342.9 x 241.3mm) (13.5 x 9.5inch) Royal National The Kocher-Langenbeck Retractor Medium isA sterilising drum is used in the surgical field to store and transport surgical instruments and supplies that have been sterilised. The drum is typically made of stainless steel and is designed to keep the sterilised items free from contamination. The size of the drum listed in the question (342. 9 x 241. 3mm or 13? x 9? inch) indicates the size of the drum and the amount of items it can hold.