1. Latex n'efu, otu ojiji, EO sterilization, akara CE.
2. Akpa akwụkwọ-poly nke ọ bụla juru n'ọnụ.
3. Dị ma na cuff na uncuff.
4. Ejiri PVC doro anya, dị nro, ọkwa ahụike.
5. Ọnụ ọgụgụ dị elu, obere nrụgide cuff.
6. Anya Murphy iji zere mgbochi iku ume zuru oke.
7. Radiopaque ahịrị ofụri tube maka X-ray visualization.