Combination heart assist systems, methods, and devices
The various embodiments disclosed herein relate to combination heart assist systems, methods, and devices that include both an electrical therapy device and a mechanical heart assist device. Various operational modes can be implemented using these embodiments, including a synchronized pacing mode, an internal CPR mode, and an internal workout mode.
1. A method of assisting and strengthening a heart, the method comprising:
detecting a characteristic of a heart with a sensing lead;
transmitting information about the heart characteristic to an electrical cardiac therapy device via the sensing lead;
actuating the electrical cardiac therapy device based at least in part on the information about the heart characteristic;
transmitting the information about the heart characteristic to a controller via a connecting lead coupled to the electrical cardiac therapy device and the controller;
actuating an implantable mechanical heart assist device with an actuating signal from the controller, wherein the actuating is based at least in part on the information about the heart characteristic; and
periodically timing the actuating of the mechanical heart assist device and the electrical cardiac therapy device such that a predetermined amount of resistance to contraction is created in the heart.
2. The method of claim 1 , wherein the electrical cardiac therapy device is an ICD.
3. The method of claim 1 , wherein the electrical cardiac therapy device is a CRT-D.
4. The method of claim 1 , wherein the periodically timing the actuating of the mechanical heart assist device and the electrical cardiac therapy device further comprises timing the actuating of the devices such that the predetermined amount of resistance to contraction is created in the heart for a predetermined treatment period each day.
5. The method of claim 4 , further comprising increasing or decreasing the predetermined treatment period as the heart is strengthened.
6. The method of claim 4 , further comprising increasing or decreasing the predetermined treatment period after a predetermined amount of time.
7. The method of claim 1 , wherein the controller is physically integral with the electrical cardiac therapy device.
8. The method of claim 1 , wherein the controller is physically integral with the mechanical heart assist device.
9. The method of claim 1 , wherein the mechanical heart assist device is a pulsatile device.
10. The method of claim 1 , wherein the heart characteristic is chosen from the group consisting of heart vibrations, heart sounds, flow, pressure, impedance, wall stress, and optical reflectance.
11. The method of claim 1 , further comprising periodically timing the actuating of the mechanical heart assist device and the electrical cardiac therapy device to operate synchronously to assist the heart based on the information about the heart characteristic.
12. The method of claim 1 , wherein the periodically timing the actuating of the mechanical heart assist device and the electrical cardiac therapy device further comprises actuating the mechanical heart assist device to deflate after a left ventricle of the heart has begun to contract.
13. A method of assisting and strengthening a heart, the method comprising:
detecting a characteristic of a heart with a sensor;
transmitting a signal relating to the heart characteristic to an electrical therapy device via the sensor;
actuating the electrical therapy device based at least in part on the heart characteristic signal;
transmitting the heart characteristic signal from the electrical therapy device to a controller;
actuating a mechanical heart assist device with an actuating signal from the controller, wherein the actuating is based at least in part on the heart characteristic signal; and
periodically actuating the mechanical heart assist device to create a predetermined amount of resistance to contraction of the heart.
14. The method of claim 13 , wherein the periodically actuating the mechanical heart assist device further comprises periodically timing the actuating of the mechanical heart assist device and the electrical therapy device.
15. The method of claim 14 , wherein the periodically timing the actuating of the mechanical heart assist device and the electrical cardiac therapy device further comprises actuating the mechanical heart assist device to deflate after a left ventricle of the heart has begun to contract.
16. The method of claim 13 , wherein the periodically actuating the mechanical heart assist device further comprises periodically actuating partial deflation of the mechanical heart assist device.
17. The method of claim 13 , wherein the periodically actuating the mechanical heart assist device further comprises timing the actuating of the mechanical heart assist device such that the predetermined amount of resistance to contraction is created in the heart for a predetermined treatment period each day.
18. The method of claim 17 , further comprising increasing or decreasing the predetermined treatment period as the heart is strengthened.
19. The method of claim 17 , further comprising increasing or decreasing the predetermined treatment period after a predetermined amount of time.
20. A method of assisting and strengthening a heart, the method comprising:
detecting a characteristic of a heart with a sensor;
transmitting information about the heart characteristic to an electrical therapy device via the sensor;
actuating the electrical therapy device based at least in part on the information about the heart characteristic;
transmitting the information about the heart characteristic to a controller;
actuating a mechanical heart assist device with an actuating signal from the controller, wherein the actuating is based at least in part on the information about the heart characteristic; and
periodically actuating the mechanical heart assist device to create a predetermined amount of resistance to contraction of the heart.
21. The method of claim 20 , wherein the periodically actuating the mechanical heart assist device further comprises periodically timing the actuating of the mechanical heart assist device and the electrical therapy device.
22. The method of claim 20 , wherein the periodically actuating the mechanical heart assist device further comprises periodically actuating partial deflation of the mechanical heart assist device.
23. The method of claim 20 , wherein the periodically actuating the mechanical heart assist device further comprises timing the actuating of the mechanical heart assist device such that the predetermined amount of resistance to contraction is created in the heart for a predetermined treatment period each day.