test 9 third generation

Question 1

Heartware HVAD

Answer 1

 Small continuous flow rotary pump with a centrifugal and non-contact bearing design.
 Impellar is held in place by passive magnetic and hydrodynamic bearing systems, avoiding mechanical contact and wear.
 Physical contact between the housing and the impeller is prevented by thin blood film generated by the hydrodynamic bearings.
 Placed within the pericardial cavity at the apex of the LV
 No need for abdominal pocket

Question 2

first human implanted Heartware HVAD

Answer 2

2006

Question 3

Heartware HVAD approved BTT in

Answer 3

 Approved November 20, 2012

Question 4

Flow through the heartware HVAD

Answer 4

• Three blood paths
  - Primary blood flow
  - Secondary blood flow
  - Tertiary blood flow
• enhances blood flow and reduces blood trauma while reducing the time blood travels through the device

Question 5

DuraHeart LVAS

Answer 5

 By Terumo Heart, Inc.
 Continuous-flow rotary pump
 Upper housing with levitation system and impeller
 Bottom housing containing the external-drive motor
 Flow rates of 2-8lpm with motor speeds of 1200-2400rpm.
 First device to reach clinical trial that combined centrifugal pump and magnetic levitation technology
 Placed in abdominal pocket
 Clincally available in Europe.

Question 6

Momentum 3 Trial Heartmate 3

Answer 6

 US IDE Clinical trial
 Prospective, Randomized, Multi center, unblinded
 Heartmate III vs. Heartmate II
 DT/ BTT

Question 7

Heartmate III

Answer 7

 Fully magnetically levitated impellar
         No friction
         Minimize complications
 Artificial pulse technology
         Help with clot formation
 Textured blood surface
         Prevent clot formation
         More like native tissue
 Pocket controller
 Implanted above diaphragm
 Up to 10 Liters/min