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Today in Cardiology
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Bench Testing
Locomotion on desktop     play  [3.1MB]
- current prototype with clear body sections shown
- computer-controlled wire actuation and valve switching
- video is in real time;   speed = 5.3 mm/s
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Locomotion on plastic heart model    play   [2.1MB]
- current prototype with clear body sections shown
- pneumatic contractions and synthetic pericardium simulate realistic anatomical constraints
- video is in real time;   speed = 10 mm/s
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Locomotion on latex balloon    play   [4.6MB]
- first prototype (black) was 3X larger than current prototype
- control system detects absence of suction seal and automatically curves downward
- video has been sped up 2X
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In Vivo Testing: Beating Pig Heart
Locomotion to target     play  [11.7MB]
- user interface showing target selection and acquisition on the anterior surface
- heart beat and respiration motions have been filtered out
- video is in real time
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Locomotion with chest closed     play  [4.1MB]
- locomotion beneath the percardium on anterior surface
- view from camera outside the pericardium
- video is in real time
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Locomotion with chest closed     play  [3.7MB]
- locomotion beneath the percardium on anterior surface
- view from camera beneath the pericardium
- video is in real time
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Dye injection with chest closed     play  [3.0MB]
- dye injection beneath the percardium with chest closed
- view from camera beneath the pericardium
- video is in real time
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Filtered tracker data during locomotion     play  [6.5MB]
- locomotion step beneath the percardium with chest closed
- the front body of the robot is tracked with the magnetic position sensor and displayed in the GUI (robot - black, path - green)
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