A system configured to predict characteristics of an artificial heart is described. The system includes a processor and memory in electronic communication with the processor, and an artificial neural network configured to receive an input vector of a predetermined length to train the artificial neural network, produce an output vector based on the input vector, and compare the output vector with a target vector of the predetermined length. When the output vector does not match the target vector within a predetermined error rate, the network is configured to adjust at least one weight, and when the output vector matches the target vector within the predetermined error rate, the network is configured to execute the input vector to produce an estimate at least one characteristic of the artificial heart.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A system configured to predict characteristics of an artificial heart, comprising: a processor; memory in electronic communication with the processor; an artificial neural network configured to: receive an input vector of a predetermined length to train the artificial neural network; produce an output vector based on the input vector; compare the output vector with a target vector of the predetermined length; when the output vector does not match the target vector within a predetermined error rate, adjust at least one weight; when the output vector matches the target vector within the predetermined error rate, execute the input vector to produce an estimate of at least one characteristic of the artificial heart. 2. The system of claim 1, wherein the artificial heart comprises an artificial heart having at least one magnetically levitated component. 3. The system of claim 1, wherein the at least one characteristic of the artificial heart comprises positive fluid flow produced by the artificial heart. 4. The system of claim 1, wherein the at least one characteristic of the artificial heart comprises negative fluid flow through the artificial heart. 5. The system of claim 1, wherein the at least one characteristic of the artificial heart comprises differential pressure exhibited across an inlet and an outlet of the artificial heart. 6. The system of claim 1, wherein the at least one characteristic of the artificial heart comprises hematocrit properties of the artificial heart. 7. The system of claim 1, wherein the artificial neural network is further configured to predict a condition of a patient that uses the artificial heart. 8. The system of claim 1, wherein the input vector comprises at least one of rotor speed, rotor position, or motor current of the artificial heart. 9. The system of claim 1, wherein the input vector comprises at least one of levitation current, system current, or system voltage. 10. The system of claim 1, wherein the artificial heart comprises a left ventricular assist device (LVAD). 11. The system of claim 1, wherein the artificial heart comprises a right ventricular assist device (RVAD). 12. The system of claim 1, wherein the at least one characteristic of the artificial heart comprises a pulsitility index. 13. A computer-implemented method to predict characteristics of an artificial heart using an artificial neural network, comprising: receiving, at the computer, an input vector of a predetermined length to train the artificial neural network; producing, by the artificial neural network, an output vector based on the input vector; comparing, by the computer, the output vector with a target vector of the predetermined length; when the output vector does not match the target vector within a predetermined error rate, adjusting at least one weight of the artificial neural network; when the output vector matches the target vector within the predetermined error rate, executing, by the artificial neural network, the input vector to produce an estimate at least one characteristic of the artificial heart. 14. The method of claim 13, wherein producing an estimate of at least one characteristic of the artificial heart comprises producing an estimate of at least one characteristic of an artificial heart that comprises at least one magnetically levitated component. 15. The method of claim 13, wherein the at least one characteristic of the artificial heart comprises positive fluid flow produced by the artificial heart. 16. The method of claim 13, wherein the at least one characteristic of the artificial heart comprises negative fluid flow through the artificial heart. 17. The method of claim 13, wherein the at least one characteristic of the artificial heart comprises differential pressure exhibited across an inlet and an outlet of the artificial heart. 18. The method of claim 13, wherein the at least one characteristic of the artificial heart comprises hematocrit properties of the artificial heart. 19. The method of claim 13, further comprising using the artificial neural network to predict a condition of a patient that uses the artificial heart. 20. The method of claim 13, wherein the input vector comprises at least one of rotor speed, rotor position, or motor current of the artificial heart. 21. The method of claim 13, wherein the input vector comprises at least one of levitation current, system current, or system voltage. 22. The method of claim 13, wherein the at least one characteristic of the artificial heart comprises a pulsitility index. 23. A computer-program product for predicting characteristics of an artificial heart using an artificial neural network, the computer-program product comprising a non-transitory computer-readable medium having instructions thereon, the instructions comprising: code programmed to receive an input vector of a predetermined length to train the artificial neural network; code programmed to produce an output vector based on the input vector; code programmed to compare the output vector with a target vector of the predetermined length; when the output vector does not match the target vector within a predetermined error rate, code programmed to adjust at least one weight; when the output vector matches the target vector within the predetermined error rate, code programmed to execute the input vector to produce an estimate at least one characteristic of the artificial heart. 24. The computer-program product of claim 23, wherein the artificial heart comprises an artificial heart having at least one magnetically levitated component. 25. The computer-program product of claim 23, wherein the artificial heart comprises a left ventricular assist device (LVAD). 26. The computer-program product of claim 23, wherein the artificial heart comprises a right ventricular assist device (RVAD). 27. A system configured to predict conditions of a patient using an artificial heart, comprising: a processor; memory in electronic communication with the processor; an artificial neural network configured to: receive an input vector of a predetermined length to train the artificial neural network; produce an output vector based on the input vector; compare the output vector with a target vector of the predetermined length; when the output vector does not match the target vector within a predetermined error rate, adjust at least one weight; when the output vector matches the target vector within the predetermined error rate, execute the input vector to produce an estimate of at least one condition of the patient using the artificial heart. 28. The system of claim 27, wherein the patient uses a natural heart in conjunction with the artificial heart. 29. The system of claim 27, wherein the at least one condition of the patient comprises hematocrit properties of the patient. 30. The system of claim 27, wherein the at least one condition of the patient comprises a pulsitility index of the blood of the patient. 31. The system of claim 30, wherein the pulsitility index describes the strength of a natural heart of the patient being used in conjunction with the artificial heart. 32. The system of claim 27, wherein the at least one condition of the patient comprises blood viscosity properties of the patient. 33. The system of claim 27, wherein the at least one condition of the patient comprises a recovery measurement of the natural heart of the patient. 34. The system of claim 33, wherein the recovery measurement comprises a measurement of the contractility of a native ventricle of the natural heart of the patient. 35. The system of claim 33, wherein the recovery measurement comprises a measurement of the elastance of a native ventricle of the natural heart of the patient.