Tenders for Supply of Double Lumen Tracheostomy Tube - Size 7 Bis Certified / Ce Certified / Us Fda Approved •Wire-Reinforced Shaft •Clear Flange To Allow Clear Visualization Of The Patients Stoma And Underlying Skin. •High Volume, Low Pressure Soft Seal Cuff To Allow An Effective Seal Whilst Reducing The Risk Of Tracheal Stenosis.