SoloHeart En Route to Being Fully-Functional Pulsatile Artificial Heart

by Slytherin - 501
M. Ibrahim Khatkhatay, Sarah Knezek, Douglas Kent, Alyssa McCue, Pablo Madrid, Akshita (Jade) Kumar, Antonio Moualeu,Nicole Girsh, John Li

Pumps:

• Heart and valves will be removed but the blood vessels will be preserved
• Solenoids enclosed in polyurethane will be installed
• Located superior to the central tendon of the diaphragm where the heart and pericardium are originally located
• St. Jude’s Bileaflet valve will be utilized

Pump parameter:

• All calculations are for an average 3-year old
• Body surface area of 0.5m2
• Weight 11.5kg
• Stroke volume: 20mL
• Inner radius of solenoid: 1.414cm
• Outer radius of solenoid: 2cm
• Radius of solenoid axis: 0.75cm
• RVAD will have 63% fewer coils than LVAD to generate less force
• Solenoid will cycle at resting 85-100 BPM allowing total C.O. of 1.5-2L/min
• Normal LVAD pressure of solenoid on blood will be 83mmHg (7N over 6.28cm2)
• Normal RVAD pressure of solenoid on blood will be 30mmHg (2.5N over 6.28cm2)

Pacemaker:

• Implanted in body near LVAD in lower abdomen
• Sensitive to leg temperature
• External control mechanism
• Required to be manually adjustable by the FDA

Battery:

• Battery will be internal super capacitor allowing it to be recharged millions of times
• Will hold enough charge for about one hour without backpack
• Backpack allows for 6 hours of charge
• Uses TET system

SoloHeart is a viable bridge to recovery after preliminary tests are performed.