1. Crane technique with the vacuum bell device for improving access in the Nuss procedure 
Hany Elsayed, FRCS Cth 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 150, Issue 5, Pages (November 2015)
DOI: /j.jtcvs
Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
The vacuum bell applied on the patient's chest after surgical preparation.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions

3. The vacuum bell device applied on the patient's chest after prepping.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2015 The American Association for Thoracic Surgery Terms and Conditions