procurement of medical stores , drugs , peek cervical inter- vertebral spacer 5 mm , peek cervical inter vertebral spacer 6 mm , peek cervical inter vertebral spacer 7 mm , artifical sutureless dural substitutes 3x3 inch ( codman ) , bipolar cautery lead disposable , expandable peek/ titanium cages for cervical spine ( small ) , expandable peek/titanium cages for dorsal spine ( medium ) , drape for craniotomy with drainage funnel ( 1 . 2x 1 . 75 ) metres with 20x30 cms adhesive box of 16 ( sterile pack ) , craniotomy tool tapered ( non spiral ) f2/8ta23 , ventriculo-peritoneal shunt system ( medium pressure ) inline , complete , external ventricular drainage pack , neurosurgical patties wm 10 x 10 , neurosurgical patties wm 20 x 20 , neurosurgical patties wm 50 x 50 , multi-axial reduction screw with top nut for correction of listhesis ( 5 . 5x45 ) , multi-axial reduction screw with top nut for correction of listhesis ( 5 . 5x50 ) , pedicle screw dia 4 . 5 x l-35mm ( poly axial ) , pedicle screw dia 5 . 5 x l-40 mm ( poly axial ) , pedicle screw dia 5 . 5xl-45 mm ( poly axial ) , philadelphia cervical collar ( large ) , philadelphia cervical collar ( medium )