Develop your team’s proficiency in Vacuum-Assisted Delivery (VAD) in a risk-free environment.

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Dr Vacca’s 5-Steps Technique to Vacuum Delivery 


The Suzy5Steps™ VAD Simulation Model (named after the Vacca 5-Steps) has been designed to accurately simulate vacuum-assisted delivery and allow for instant feedback on technique throughout the procedure. Research confirms that most VAD complications arise from incorrect technique (often an error in cup attachment or direction of traction). The VAD Simulation Model provides a safe space to practise technique with particular attention to cup attachment and direction of traction.

Enjoy the confidence of accurate and comprehensive simulation.

The VAD Simulation Model has been developed in collaboration with Vacca Research with care taken to produce the highest quality simulation for training purposes. The birth canal model includes an ishial spine, public arch and window allowing for internal view, while the fetal head includes the fontanelles, sagittal suture and lifelike moulding. Together the models provide realistic resistance, passage of fetal head and simulate both rotational and non-rotational deliveries at low, mid and high stations.

Monitor technique from cup attachment through to delivery.

A lateral window provides the opportunity for supervisors to monitor technique throughout the procedure and provide ongoing feedback to operators regarding cup attachment and direction of traction. The window includes markers indicating axes of traction, station points, the mid-point and midline, allowing easy identification of error at any stage in the procedure.



Evidence shows that formal education and training through hands-on practise sessions using models improves the outcome of instrumental delivery.

The Suzy5Steps™ pelvic trainer model is designed specifically for use in hands-on group training events. The model facilitates teamwork educational sessions for trainees, obstetricians, midwives, birth attendants, general practitioners (GP), trainees, and other care providers.

Skills gained

Hone your hands-on technical skills for safe vacuum delivery.

  • Practical experience in VAD procedure

  • Development of proficient technique in VAD prior to clinical usage

  • Ability to perform and recognise correct cup placement and attachment

  • Correct technical use of VAD suction cup

  • Perform correct direction of traction during the descent and perineal phase of a vacuum delivery

  • Familiarity with the recommended number of pulls for rotational and non-rotational deliveries

  • Skills to prevent cup detachment

  • Practise in VAD for both rotational and non-rotational delivery

  • Gaining confidence in what correct and incorrect VAD procedure feels like


This training model provides a realistic simulation of VAD with a unique viewing window that also enables clinicians to monitor technique throughout the process.  By working in pairs (dyadic learning), participants can alternate between observational learning and actual performance, enhancing goal setting, motivation and interaction.

Dr Paul Howat  Divisional Director, Women’s and Children’s Services MBBS FRANZCOG

The importance of adequate training and supervision in vacuum delivery cannot be overemphasised.

RANZCOG  Prevention, detection and management of Subgaleal Haemorrhage in the newborn C-Obs 28

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