Central Venous Cannula ( Certofix- Trio ). Specification- The product as being very essential for management of critically ill patients, retendering may be done with following specification. 1 ) Material- Radio opaque BiocompatiblePolyurethane 2 ) Number of Lumen: 3 ( Three ) 3 ) Size: 7 F 4 ) Length of catheter: 16- 20 CM 5 ) The complete sterile set must contain the following a ) Valve needle b ) Luer lock syringe 5 ml c ) Kink proof, Guidewire of compatible size and length made of nickel- titanium d ) Triple lumen 16G- 18G- 18G radiopaque- biocompatible- polyurethane made, 7F outer diameter, soft tip, with valves. Length marking must be present to assess depth. Colour coded lock fittings and lumens. Fixation wing at channel junction for cutaneous fixation. e ) Dilator of compatible size f ) Scalpel g ) Adhesive dressing 6 ) Sterile pyrogen free 7 ) Long Expiry