A cricoid cartilage compression device for the accurate and reproducible application of cricoid pressure

Research output: Contribution to journalArticle

  • Authors:
  • R. J. Taylor
  • G. Smurthwaite
  • I. Mehmood
  • G. B. Kitchen
  • R. D. Baker


We describe the development and laboratory assessment of a refined prototype tactile feedback device for the safe and accurate application of cricoid pressure. We recruited 20 operating department practitioners and compared their performance of cricoid pressure on a training simulator using both the device and a manual unaided technique. The device significantly reduced the spread of the applied force: average (SE) root mean squared error decreased from 8.23 (0.48) N to 5.23 (0.32) N (p < 0.001). The average (SE) upwards bias in applied force also decreased, from 2.30 (0.74) N to 0.88 (0.48) N (p < 0.01). Most importantly, the percentage of force applications that deviated from target by more than 10 N decreased from 18% to 7% (p < 0.01). The device requires no prior training, is cheap to manufacture, is single-use and requires no power to operate, whilst ensuring that the correct force is always consistently applied.

Bibliographical metadata

Original languageEnglish
Pages (from-to)18-25
Number of pages8
Issue number1
Publication statusPublished - 1 Jan 2015