Ostium Secundum Atrial Septal Defect Closure

Ostium Secundum Atrial
Septal Defect Closure
Thomas Hoy
Department of Biomedical Engineering
BME 272 Senior Design
What is a Ostium
Secundum Atrial Septal
congenital heart disease
causes left to right
shunting across interatrial
Why should we care?
• Isolated secundum atrial
septal defects of
significance occur in
approximately 70,000100,000 individuals today.
• Isolated ASDs can cause
congestive heart failure or
Eisenmengers syndrome
Techniques Used Today
Surgical Suture & Surgical Patch
• Both require open heart surgery
• Requires stopping the patient's heart
and utilizing cardiopulmonary bypass
Transcatheter Amplatzer septal
• Pioneer in 1976
• Minimally invasive with excellent results
Both Cost The Same
Project Definition
To design a device that should:
• Provide more accurate application
• Less strain on the applied interatrial wall
• Stimulate endotheliazation of the device
• Be lower in cost and more simplistic in
• Improve the quality of life of the patient
Current Status
• History of device and methods used
• Success rate and cost analysis of those
devices an methods
• Study of the engineering aspects of the
Amplatzer design
Brainstorming possible solutions to
this problem
Future Work
Scheduled meeting with advisor to
discuss progress
Continued brainstorming and
documentation of possible designs
and implementation devices
Study engineering possibilities of
designs and modeling