Auto-regulated R-wave synchronized intraventricular balloon pump heart assist device
View Patent ↗Embodiments of the disclosed technology comprise an intraventricular balloon pump to help a dilated heart or ventricle push forward the stagnant stroke volume to the systemic circulation. The balloon fills simultaneously with the contraction of the ventricle. Since blood finds its way of least resistance, the easiest exit is through the aortic valve, against a closed mitral valve. The system is designed to be totally implantable, with a less invasive insertion and maintenance procedure than is known in the prior art.
1. An intraventricular balloon pump system, comprising:
an intraventricular balloon;
a housing comprising a rotating disc and a tubule, said tubule fluidly connected with said balloon;
wherein a revolution of said rotating disc compresses said tubule and forces fluid held within said tubule to enter said balloon.
2. The intraventricular balloon pump system of claim 1 , wherein said revolution is adapted to be timed with the beating of a heart.
3. The intraventricular balloon pump system of claim 2 , further comprising a switch adapted to be situated on and in contact with the exterior of said heart, said switch adapted to be timed to be electrically engaged with an R-wave electrical signal of said heart.
4. The intraventricular balloon pump of claim 1 , wherein said intraventricular balloon is adapted to be inserted through the apex of the heart into the left ventricle.
5. The intraventricular balloon pump system of claim 1 , wherein said system is adapted to be fully implated within a person and further comprises an access port in fluid connection with said balloon and said tubule.
6. The intraventricular balloon pump system of claim 1 , further comprising a grooved gear with a recess, wherein between each revolution of said rotating disc, a lever is engaged with said recess.
7. A method of ventricular assist of a heart comprising:
filling a tubule with liquid, said tubule extending into a circular housing;
detecting a myocardial contraction;
upon said detecting, rotating a quadrant about a central axis of said circular housing;
sweeping said liquid out of said circular housing into an intraventricular balloon.
8. The method of claim 7 , wherein said method is repeated for a plurality of myocardial contractions.
9. The method of claim 7 , wherein:
said circular housing comprises a portal;
said tubule exits from said portal and joins with said balloon; and
during a portion of diastole, said quadrant rests near said portal.
10. The method of claim 7 , wherein said filling is accomplished by way of a subcutaneous access port.
11. The method of claim 7 , wherein when said heart beats regularly, said quadrant alternates between movement and rest.
12. The method of claim 11 , wherein when said detected myocardial contraction comprises cardiac arrest, said quadrant spins continuously.
13. The method of claim 7 , wherein said myocardial contraction is detected by way of an electrical switch in physical connection with an exterior portion of said heart.
14. An heart implant comprising:
a balloon adapted to be inserted through the apex of the heart into the left ventricle;
a circular housing further comprising a rotating quadrant therein;
a battery powered motor connecting, by way of a gear, to said rotating quadrant;
a tubule extending from within interior space of said circular housing to said balloon.
15. The heart implant of claim 14 , further comprising an electrical switch, wherein upon detection of a myocardial contraction by way of said switch, said quadrant rotates around said circular housing and liquid within said tubule is pushed into said ventricular balloon.
16. The heart implant of claim 14 , wherein said gear comprises a groove and a latch falls into said groove at each rotation of said gear.
17. The heart implant of claim 15 , further comprising an access port in fluid connection with said tubule and said balloon.
18. The heart implant of claim 17 , wherein a fluid volume is decreased by way of said access port when less heart assist is needed.
19. The heart implant of claim 17 , wherein a maximum a fluid volume is equal to the volume of the left ventricle.
20. The heart implant of claim 14 , wherein said battery is rechargeable by way of transcutaneous energy transmission.