التفاصيل البيبلوغرافية
| العنوان: |
Method and System for Use in Monitoring Left Ventricular Dysfunction |
| Document Number: |
20110034815 |
| تاريخ النشر: |
February 10, 2011 |
| Appl. No: |
12/855362 |
| Application Filed: |
August 12, 2010 |
| مستخلص: |
A method and system are presented for use in determining a patient's heart condition. First and second data are provided, where the first data is indicative of the patient's heart rate, and the second data is indicative of bioimpedance peak value during a cardiac cycle. A relation between a certain predetermined value and a product of the first and said second data is determined, where such relation is indicative of the patient's left ventricular condition, enabling to identify a left ventricular dysfunction. |
| Inventors: |
Granov, Evgeny (Ra'anana, IL); Granov, Igor (Raanana, IL); Goor, Daniel A. (Tel Aviv, IL); Frinerman, Efim (Bat Yam, IL) |
| Assignees: |
N.I.Medical Ltd. (Kfar Malal, IL) |
| Claim: |
1. A method for use in determining a patient's heart condition, the method comprising: providing first data indicative of the patient's heart rate; providing second data indicative of bioimpedance peak value during a cardiac cycle; determining a relation between a product of said first and said second data and a certain predetermined value, said relation being indicative of the patient's left ventricular condition enabling to identify left ventricular dysfunction. |
| Claim: |
2. The method according to claim 1, wherein said relation indicative of the patient's left ventricular dysfunction is determined such that said product of said first and said second data being less than said certain predetermined value corresponds to a condition of the patient's left ventricular dysfunction. |
| Claim: |
3. The method according to claim 1, wherein said first data indicative of the patient's heart rate comprises a patient's heart rate value. |
| Claim: |
4. The method according to claim 1, wherein said first data indicative of the patient's heart rate comprises a product of the patient's heart rate value and a coefficient kHR which is specific for a patient and which is a correction coefficient for correction of the heart rate. |
| Claim: |
5. The method according to claim 4, wherein the correction coefficient kHR is equal to 1 when the measured patient's heart rate HRmeas within a certain range of normal values between a bottom limit BL and a top limit TL, is equal to BL/HRmeas when the measured patient's heart rate HRmeas is less than the bottom limit BL of the normal range, and is equal to TL/HRmeas when the heart rate HRmeas higher than the top limit TL of the normal range. |
| Claim: |
6. The method according to claim 5, wherein the correction coefficient kHR is equal to 1 when the measured patient's heart rate HRmeas is within a range of 60-90, and is equal to 60/HRmeas when the measured heart rate HRmeas is less than 60, and is equal to 90/HRmeas when the measured heart rate HRmeas higher than 90. |
| Claim: |
7. The method according to claim 1, wherein said indicative of electrical bioimpedance changes during a cardiac cycle comprises a product of a normalized systolic impedance variation, ΔR/R, and a systolic peak time, α. |
| Claim: |
8. The method according to claim 5, wherein said second data indicative of electrical bioimpedance changes during a cardiac cycle comprises a product of a normalized systolic impedance variation, ΔR/R, and a systolic peak time, α. |
| Claim: |
9. The method according to claim 6, wherein said second data indicative of electrical bioimpedance changes during a cardiac cycle comprises a product of a normalized systolic peak value impedance, ΔR/R, and a systolic peak time, α. |
| Claim: |
10. The method according to claim 9, wherein said certain predetermined value is equal to 10. |
| Claim: |
11. A system for use in determining a patient's heart condition, the system comprising: a data input utility for receiving first data indicative of the patient's heart rate and receiving second data indicative of bioimpedance variations during a cardiac cycle; a data processing and analyzing utility configured for determining a product of said first and said second data, determining a relation between said product and a certain predetermined value, and based on said relation generating data indicative of the patient's left ventricular condition; and a data output utility for exposing to user data indicative of the patient's left ventricular condition. |
| Claim: |
12. The system according to claim 11, wherein said data input utility is responsive to user entered data comprising at least one of said first and second data. |
| Claim: |
13. The system according to claim 11, wherein said data input utility is responsive to output data of a measurement device, said output data comprising at least one of said first and second data. |
| Claim: |
14. The system according to claim 12, wherein said data input utility is responsive to output data of a measurement device, said output data comprising at least one of said first and second data. |
| Claim: |
15. The system according to claim 11, wherein said data processing and analyzing utility operates to determine whether said product of said first and said second data is less than said certain predetermined value and generating data indicative the condition of the patient's left ventricular dysfunction. |
| Claim: |
16. The system according to claim 11, wherein said first data indicative of the patient's heart rate comprises a patient's heart rate value. |
| Claim: |
17. The system according to claim 11, wherein said first data indicative of the patient's heart rate comprises a product of the patient's heart rate value and a coefficient kHR which is specific for a patient and which is a correction coefficient for correction of the heart rate. |
| Claim: |
18. The system according to claim 17, wherein the correction coefficient kHR is equal to 1 when the measured patient's heart rate HRmeas within a certain range of normal values between a bottom limit BL and a top limit TL, is equal to BL/HRmeas when the measured patient's heart rate HRmeas is less than the bottom limit BL of the normal range, and is equal to TL/HRmeas when the heart rate HRmeas is higher than the top limit TL of the normal range. |
| Claim: |
19. The system according to claim 18, wherein the correction coefficient kHR is equal to 1 when the measured patient's heart rate HRmeas within a range of 60-90, and is equal to 60/HRmeas when the measured heart rate HRmeas less than 60, and is equal to 90/HRmeas when the measured heart rate HRmeas higher than 90. |
| Claim: |
20. The system according to claim 11, wherein said second data indicative of electrical bioimpedance changes during a cardiac cycle comprises a product of a normalized systolic impedance variation, ΔR/R, and a systolic peak time, α. |
| Claim: |
21. The system according to claim 18, wherein said second data indicative of electrical bioimpedance changes during a cardiac cycle comprises a product of a normalized systolic impedance variation, ΔR/R, and a systolic peak time, α. |
| Claim: |
22. The system according to claim 19, wherein said second data indicative of electrical bioimpedance changes during a cardiac cycle comprises a product of a normalized impedance variation, ΔR/R, and a systolic peak time, α. |
| Claim: |
23. The system according to claim 21, wherein said certain predetermined value is equal to 10. |
| Current U.S. Class: |
600/509 |
| Current International Class: |
61 |
| رقم الانضمام: |
edspap.20110034815 |
| قاعدة البيانات: |
USPTO Patent Applications |