RCP Alveoli Ventilation with Continuous Chest Compression - b-card concept & functionalities
Neonatal Chest Compression Device
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Transcript of Neonatal Chest Compression Device
Neonatal Chest Compression DeviceCourtney GallagherJillian ZeberAdvisor: Dr. Walsh, Vanderbilt NICU
Problem Statement• When performed in
conjunction with operations of the neck and lower abdomen, there is limited space for manual chest compressions.
• Manual chest compressions require both hands to be wrapped around the chest.
• 2 occurrences at the Vanderbilt NICU this past year.
Project Goal
• Small, easy to setup device that will perform automatic chest compressions on a 0-30 day old infant for use in the OR during a simultaneous procedure.
Performance Criteria• Small but adjustable to fit the size of the baby.
• Provide enough force for sufficient chest compressions to reduce the width to one third, 2 to 3 cm.
• Apply the 11-12 lbs of force directly below the nipples in the center of the chest. • Verified with bathroom scale and free weights.
• Maintain a rate of 80-100 compressions per minute for blood pumping.
• Simple and easy to use by Dr. Walsh in the NICU
Solution Proposal• Pneumatic air cylinder• Air compressor
• Possible Modifications• Inflatable balloon• Backboard
Device Components• Pneumatic cylinder, air compressor, solenoid valve, and a
automatic controller
• Use 1.1 inch diameter plunger to displace chest 2-3 cm.
• An adjustable elastic Velcro band• To fit different sized infants
• A rigid backboard• To concentrate the force on the sternum and not around the entire
torso
• Wheel-up cart supporting base structure and air compressor
Factors
• Provide necessary but not excessive force (11-12 lbs = 5 kg)• Materials that can be sterilized• Comfortable• Quick setup• Potentially portable• Safety• Adjustable
Previous Work• Researched existing adult compression devices• AutoPulse, Lucas, Thumper
• Established goals and criteria that must be met• Discussed with advisors
• Decided on a prototype design• Pneumatic cylinder
• Purchased materials to build initial prototype• Pneumatic cylinder and Air compressor
• Measured force required to provide chest compressions
Current Work
• Acquiring needed materials
• Building initial prototype
• Testing basic setup on Isabel
Future Work• After testing, make modifications and re-test
• Research solenoid valve and controllers• Pre-set timers (automatic)• Foot pedal w/ exhaust (manual)
• Design Safe
• Make Demo
• Evaluate effectiveness against traditional method
Evaluation• Isabel in the NICU Simulation Lab• Responds like an alive baby• Provides vitals• Can determine if chest compression are adequate
References• http://www.zoll.com/medical-products/cardiac-support-pump
/autopulse/
• http://content.onlinejacc.org/cgi/content/full/44/11/2214/FIG2