Implantable device for monitoring hemodynamic profiles

• US 7,460,909 B1
• Filed: 08/16/2005
• Issued: 12/02/2008
• Est. Priority Date: 08/16/2005
• Status: Expired due to Fees

• Current Assignee: Pacesetter Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Pacesetter Incorporated (Abbott Laboratories Incorporated)
• Inventors: Koh, Steve, Park, Euljoon
• Primary Examiner(s): SCHAETZLE, KENNEDY
• Application Number:
  US11/205,694
• Time in Patent Office: 1,204 Days
• Field of Search: 607/18, 607/19, 607 21- 23, 600/483, 600/485, 600/502, 600/506, 600/513, 600/526
• US Class Current: 607/23
• CPC Class Codes: A61N 1/3622 comprising two or more electrodes co-operating with different heart regions
• CPC Class Codes: A61N 1/3627 for treating a mechanical deficiency of the heart, e.g. congestive heart failure or cardiomyopathy
• CPC Class Codes: A61N 1/36521 the parameter being derived from measurement of an electrical impedance
• CPC Class Codes: A61N 1/3655 controlled by body or blood temperature
• CPC Class Codes: A61N 1/36557 controlled by chemical substances in blood
• CPC Class Codes: A61N 1/36564 controlled by blood pressure
• CPC Class Codes: A61N 1/36585 controlled by two or more physical parameters
• CPC Class Codes: A61N 1/368 comprising more than one electrode co-operating with different heart regions A61N1/3622, A61N1/3627 take precedence
• CPC Class Codes: A61N 1/3682 with a variable atrioventricular delay
• CPC Class Codes: A61N 1/3684 for stimulating the heart at multiple sites of the ventricle or the atrium
• CPC Class Codes: A61N 1/36842 Multi-site stimulation in the same chamber
• CPC Class Codes: A61N 1/36843 Bi-ventricular stimulation
• CPC Class Codes: A61N 1/3925 Monitoring; Protecting
• CPC Class Codes: A61N 1/39622 Pacing therapy

Abstract

An exemplary method includes providing a filling pressure parameter, providing a perfusion parameter, determining a hemodynamic profile based at least in part on the filling pressure parameter and the perfusion parameter and adjusting a stimulation parameter of an implantable cardiac therapy device based at least in part on the hemodynamic profile. Other exemplary methods, devices, systems, etc., are also disclosed.

Claims

1. A method comprising:

providing a filling pressure parameter;

providing a perfusion parameter;

determining a hemodynamic profile based at least in part on the filling pressure parameter and the perfusion parameter, wherein the hemodynamic profile comprises a profile selected from a group consisting of warm and dry, wet and warm, wet and cold, and cold and dry; and

adjusting a stimulation parameter of an implantable cardiac therapy device based at least in part on the hemodynamic profile.

2. The method of claim 1 further comprising providing at least one of the filling pressure parameter and the perfusion parameter to the implantable cardiac therapy device via a wireless link.

3. The method of claim 1 wherein the providing the filling pressure parameter comprises measuring an intravenous pressure.

4. The method of claim 1 wherein the providing the filling pressure parameter comprises measuring a cardiac chamber pressure.

5. The method of claim 1 wherein the providing the perfusion parameter comprises measuring a temperature.

6. The method of claim 1 wherein the providing the perfusion parameter comprises using oximetry.

7. The method of claim 1 wherein the providing the perfusion parameter comprises measuring an impedance.

8. The method of claim 1 wherein the providing the filling pressure parameter comprises measuring impedance.

9. The method of claim 1 wherein the stimulation parameter comprises a biventricular pacing therapy parameter.

10. A method comprising:

providing a filling pressure parameter wherein the filling pressure parameter indicates whether the hemodynamic profile is wet or dry;

providing a perfusion parameter;

determining a hemodynamic profile based at least in part on the filling pressure parameter and the perfusion parameter; and

adjusting a stimulation parameter of an implantable cardiac therapy device based at least in part on the hemodynamic profile.

11. A method comprising:

providing a filling pressure parameter;

providing a perfusion parameter wherein the perfusion parameter indicates whether the hemodynamic profile is cold or warm;

determining a hemodynamic profile based at least in part on the filling pressure parameter and the perfusion parameter; and

adjusting a stimulation parameter of an implantable cardiac therapy device based at least in part on the hemodynamic profile.

12. A method comprising:

providing a filling pressure parameter;

providing a perfusion parameter;

determining a hemodynamic profile based at least in part on the filling pressure parameter and the perfusion parameter; and

adjusting a stimulation parameter of an implantable cardiac therapy device based at least in part on the hemodynamic profile; and

further comprising determining an activity state and performing the determining only during a predetermined activity state.

13. A system comprising:

means for providing a filling pressure parameter wherein the filling pressure parameter indicates whether the hemodynamic profile is wet or dry;

means for providing a perfusion parameter;

means for determining a hemodynamic profile based at least in part on the filling pressure parameter and the perfusion parameter; and

means for adjusting a stimulation parameter of an implantable cardiac therapy device based at least in part on the hemodynamic profile.