Electrical therapy device

• US 20030009199A1
• Filed: 06/28/2002
• Published: 01/09/2003
• Est. Priority Date: 07/04/2001
• Status: Abandoned Application

• Current Assignee: Biotronik Mess-Und Therapiegeraete GmbH & Company Ingenieurbuero Berlin (Biotronik SE & Company KG)
• Original Assignee: Botronik Mess-Und Therapiegeraete GmbH & Company Ingenieubuero Berlin
• Inventors: Reinke, Heinrich, Muessig, Dirk, Schaldach, Max, Schaldach, Max Jr.
• Application Number:
  US10/186,313
• Publication Number:
  US 20030009199A1
• Time in Patent Office: Days
• US Class Current: 607/17
• CPC Class Codes: A61N 1/36521 the parameter being derived from measurement of an electrical impedance
• CPC Class Codes: A61N 1/36528 the parameter being measured by means of ultrasound
• 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 1/36571 controlled by blood flow rate, e.g. blood velocity or cardiac output
• CPC Class Codes: A61N 1/3962 in combination with another heart therapy
• CPC Class Codes: A61N 1/39622 Pacing therapy

Abstract

An electrical therapy device for a heart has a hemodynamic sensor (1), an electrostimulation device (2) and a control unit (30). The hemodynamic sensor (1) is adapted to detect a peripheral blood flow. In this arrangement, the control unit (30) has a tachyarrhythmia evaluation device (3) and a telemetry receiver (6). The control unit (30) controls the electrostimulation device (2) for stimulating and defibrillating the heart in dependence on the peripheral blood flow which is detected by the hemodynamic sensor (1). In addition a tachyarrhythmia and/or the peripheral hemodynamic effects thereof is detected, wherein the peripheral hemodynamic effects of the tachyarrhythmia are determined on the basis of the peripheral blood flow which is detected by a peripheral hemodynamic sensor (1). The results of detecting a tachyarrhythmia and/or the peripheral hemodynamic effects thereof can be used to defibrillate or stimulate the heart by means of the electrostimulation device (2).

Claims

1. An electrical therapy device for a heart, comprising:

a hemodynamic sensor for detecting a peripheral blood flow;

a control unit for emitting a control signal based upon the peripheral blood flow detected by the hemodynamic sensor; and

an electrostimulation device for stimulating the heart based upon the control signal from the control unit;

wherein the control unit comprises a detection unit for a peripheral hemodynamic undersupply, the detection unit being adapted to detect a peripheral hemodynamic undersupply based on the peripheral blood flow detected by the hemodynamic sensor; and

wherein the electrostimulation device is further adapted to deliver signals suitable for defibrillation or stimulation of a heart based upon the peripheral hemodynamic undersupply detected by the detection unit.

2. The electrical therapy device of claim 1, wherein the control unit comprises:

a tachyarrhythmia evaluation device or is connected thereto, such that the tachyarrhythmia evaluation device is connected to the detection unit and is adapted to detect a tachyarrhythmia and/or the peripheral hemodynamic effect thereof, and

wherein the electrostimulation device is further adapted to deliver signals suitable for defibrillation or stimulation of a heart in dependence on the tachyarrhythmia detected by the tachyarrhythmia evaluation device and/or the peripheral hemodynamic effect thereof.

3. The electrical therapy device of claim 2, wherein:

the tachyarrhythmia evaluation device is connected to at least one electrode suitable for recording an intracardiac ECG and is adapted to detect a tachyarrhythmia by evaluating a signal originating from the electrode.

4. The electrical therapy device of claim 3, wherein the tachyarrhythmia evaluation device is adapted to link the electrode signal with the detection unit signal and to form an output signal which is dependent on both input signals.

5. The electrical therapy device of claim 4, wherein:

the hemodynamic sensor is adapted to measure an impedance of the peripheral blood, which is dependent on the peripheral blood flow, in order to detect the peripheral blood flow.

6. The electrical therapy device of claim 1, wherein:

the hemodynamic sensor is adapted to measure an impedance of the peripheral blood, which is dependent on the peripheral blood flow, in order to detect the peripheral blood flow.

7. The electrical therapy device of claim 5, wherein:

the hemodynamic sensor comprises a first and a second impedance measuring electrode, in spaced-apart relationship.

8. The electrical therapy device of claim 6, wherein:

the hemodynamic sensor comprises a first and a second impedance measuring electrode, in spaced-apart relationship.

9. The electrical therapy device of claim 7, wherein the control unit further comprises a telemetry receiver and the hemodynamic sensor further comprises a telemetry transmitter for telemetric communication therebetween, so that peripheral blood flow data detected by the hemodynamic sensor can be wirelessly transmitted to the control unit.

10. The electrical therapy device of claim 8, wherein the control unit further comprises a telemetry receiver and the hemodynamic sensor further comprises a telemetry transmitter for telemetric communication therebetween, so that peripheral blood flow data detected by the hemodynamic sensor can be wirelessly transmitted to the control unit.

11. The electrical therapy device of claim 1, wherein the control unit further comprises a telemetry receiver and the hemodynamic sensor further comprises a telemetry transmitter for telemetric communication therebetween, so that peripheral blood flow data detected by the hemodynamic sensor can be wirelessly transmitted to the control unit.

12. The electrical therapy device of claim 9, wherein:

the hemodynamic sensor is adapted for arrangement in the region of a user'"'"'s carotid sinus.

13. The electrical therapy device of claim 10, wherein:

the hemodynamic sensor is adapted for arrangement in the region of a user'"'"'s carotid sinus.

14. The electrical therapy device of claim 3, wherein:

the hemodynamic sensor is adapted to measure an impedance of the peripheral blood, which is dependent on the peripheral blood flow, in order to detect the peripheral blood flow.

15. The electrical therapy device of claim 7, wherein:

the hemodynamic sensor comprises a first and a second impedance measuring electrode, in spaced-apart relationship.

16. The electrical therapy device of claim 15, wherein:

the control unit further comprises a telemetry receiver and the hemodynamic sensor further comprises a telemetry transmitter for telemetric communication therebetween, so that peripheral blood flow data detected by the hemodynamic sensor can be wirelessly transmitted to the control unit.

17. The electrical therapy device of claim 16, wherein:

the hemodynamic sensor is adapted for arrangement in the region of a user'"'"'s carotid sinus.

18. The electrical therapy device of claim 3, wherein the control unit further comprises a telemetry receiver and the hemodynamic sensor further comprises a telemetry transmitter for telemetric communication therebetween, so that peripheral blood flow data detected by the hemodynamic sensor can be wirelessly transmitted to the control unit.

19. The electrical therapy device of claim 1, wherein the control unit further comprises a telemetry receiver and the hemodynamic sensor further comprises a telemetry transmitter for telemetric communication therebetween, so that peripheral blood flow data detected by the hemodynamic sensor can be wirelessly transmitted to the control unit.