HEAD & NECK | Montgomery® Tracheal Cannula System

Montgomery® Long-Term Cannula

The patented Montgomery Long-Term Cannula is the result of many years of clinical research and design. Used to replace either the Short-Term Cannula or a standard tracheostomy tube, the cannula features a 27°-angled flange to ensure that the tube rests horizontally when seated in the trachea – nothing protrudes into the trachea. Made from flexible Implant grade silicone, the tube has a highly polished surface that permits and encourages growth of epithelium between the trachea and the skin. Once inserted, a ring washer is applied, ensuring patient safety. The tube can be trimmed to a low profile. A dual-purpose groove along the axis of the tube rests in the “6 o’clock” position for orientation and serves as a drainage vent. Long-Term Cannula diameters correspond to standard tracheostomy tube sizes 4, 6, 8, and 10. The stoma length in millimeters is measured along the inferior aspect of the stoma from the anterior tracheal wall to the outside skin. These measurements are made easily using the STOMEASURE™. There are 24 sizes of Long-Term Cannula to choose from. Each Long-Term Cannula includes the tube, two plug/ring sets, and product information. Also available are 15mm adaptors and additional plug/ring sets. Refer to chart below for corresponding product codes.


  • No tube projecting into the trachea
  • Angled internal flange for proper positioning
  • Easy-to-clean and maintain
  • Flexible implant-grade silicone
  • Safety ring and groove system
  • Length can be trimmed to any neck size

intended use

To provide a secondary airway and to take the place of a standard tracheostomy tube (standard tracheal cannula) or a Montgomery® Short-Term Cannula in order to establish a long-term tracheostoma.


For single patient use
1 cannula, 2 plug/ring sets, 1 IFU, 1 Patient Pak™ per carton

Ordering information


Size Dimensions (mm) REF
for the following stoma lengths (dimension “c” in mm)
A B 17-25 25-33 33-41 41-49 49-57 57-65 Plug/Ring Set 15 mm Adaptor
4 9 37 330425 330433 330441 330449 330457 330465 310406 310404
6 11 37 330625 330633 330641 330649 330657 330665 310606 310604
8 12 37 330825 330833 330841 330849 330857 330865 310806 310804
10 13 37 331025 331033 331041 331049 331057 331065 311006 311004


The ordering information, including possible assortment of different sizes and materials, reference number and items per box, can be found on the desktop website. 

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