supply of central venous cannula .specification - 1 ) material- radio opaque biocompatible- polyurethane2 ) number of lumen : 1 ( one ) 3 ) size: 7 f4 ) length of catheter: 16-20 cm5 ) 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 ) single lumen 18g / 16g 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 free7. long expiryitem code s67008 , ai 23-24 acms / howrah, er west bengal 100.00 numbers cms / asansol, er west bengal 45.00 numbers => limited