| 摘要 |
An obturator 2 for a tracheostomy tube 1 has a strap 25 extending along its length between a nose 21 at its patient end 20 and a machine end 32 with clips 34 that fasten to a coupling 13 on the tube. The strap 25 has one web 26 extending along its entire length and a second web 27 extending orthogonally on one side of the first web to form a T shape section along the major part 28 of the strap towards its patient end. This makes the patient end 20 of the strap 25 relatively rigid whilst its machine end 32 is relatively flexible to enable the machine end to be twisted to release the engagement of the clips 34 and to enable the obturator 2 to be pulled out of the tube 1. <IMAGE> |
