Dynamically adjustable multiphasic defibrillator pulse system and method

• US 9,616,243 B2
• Filed: 06/12/2014
• Issued: 04/11/2017
• Est. Priority Date: 06/14/2013
• Status: Active Grant

• Current Assignee: CardioThrive, Inc.
• Original Assignee: CardioThrive, Inc.
• Inventors: Raymond, Douglas M., Gray, Peter D., Savage, Walter T., Savage, Shelley J.
• Primary Examiner(s): KOHARSKI, CHRISTOPHER
• Assistant Examiner(s): Carey, Michael
• Application Number:
  US14/303,541
• Publication Number:
  US 20140371805A1
• Time in Patent Office: 1,034 Days
• Field of Search: 607 5, 607 9, 607 11, 607 44, 607 45, 607 46, 607 48, 607 68, 607 70, 607 74
• CPC Class Codes: A61N 1/36125 Details of circuitry or electric components
• CPC Class Codes: A61N 1/36153 Voltage A61N1/3616 takes precedence
• CPC Class Codes: A61N 1/3625 External stimulators
• CPC Class Codes: A61N 1/3904 External heart defibrillators [EHD]
• CPC Class Codes: A61N 1/3906 characterised by the form of the shockwave
• CPC Class Codes: A61N 1/3912 Output circuitry therefor, e.g. switches

Abstract

A dynamically adjustable multiphasic pulse system and method are provided. The dynamically adjustable multiphasic pulse system may be used as pulse system for a defibrillator or cardioverter. The dynamically adjustable multiphasic pulse system may generate a positive phase and a negative phase of a pulse to generate a therapeutic pulse.

Claims

1. A multiphasic pulse generator, comprising:

at least a first subsystem that generates a first phase of a pulse, the first subsystem having a power source and an energy reservoir, wherein the first phase is one of a positive phase of the pulse and a negative phase of the pulse;

at least a second subsystem that generates a second phase of the pulse, the second subsystem having a second power source and a second energy reservoir, wherein the second phase is an opposite polarity phase to the first phase; and

a switching component that switches between the first and second subsystems to generate a therapeutic pulse having at least one positive phase and at least one negative phase.

2. The generator of claim 1 further comprising a first circuit that adjusts a shape of the first phase of the pulse.

3. The generator of claim 2 further comprising a second circuit that adjusts a shape of the second phase of the pulse.

4. The generator of claim 2, wherein the first circuit includes an array of selectable resistors.

5. The generator of claim 3, wherein the second circuit includes an array of selectable resistors.

6. The generator of claim 1, wherein the therapeutic pulse is one out of a plurality of different possible power and energy levels suitable for use in one of cardiac pacing, cardioversion, defibrillation, neurological therapies, nerve therapies and musculoskeletal therapies.

7. The generator of claim 1 further comprising a circuit to individually select an amplitude of one or more of the first phase of the pulse and second phase of the pulse.

8. The generator of claim 1, wherein the at least first subsystem has a control circuit and the at least second subsystem has a control circuit.

9. A multiphasic pulse generator, comprising:

at least a first subsystem that generates a first phase of a pulse, the first subsystem having a power source, an energy reservoir and a portion of an H-bridge circuit, wherein the first phase is one of a positive phase of the pulse and a negative phase of the pulse;

at least a second subsystem that generates a second phase of the pulse, the second subsystem having a second power source, a second energy reservoir and a second portion of the H-bridge circuit so that a complete H-bridge circuit is formed between the at least first and second subsystems, wherein the second phase is an opposite polarity phase to the first phase; and

a switching component that switches between the first and second subsystems to generate a therapeutic pulse having at least one positive phase and at least one negative phase.

10. The generator of claim 9 further comprising a first circuit that adjusts a shape of the first phase of the pulse.

11. The generator of claim 10 further comprising a second circuit that adjusts a shape of the second phase of the pulse.

12. The generator of claim 10, wherein the first circuit includes an array of selectable resistors.

13. The generator of claim 11, wherein the second circuit includes an array of selectable resistors.

14. The generator of claim 9, wherein the therapeutic pulse is one out of a plurality of different possible power and energy levels suitable for use in one of cardiac pacing, cardioversion, defibrillation, neurological therapies, nerve therapies and musculoskeletal therapies.

15. The generator of claim 9 further comprising a circuit to individually select an amplitude of one or more of the first phase of the pulse and second phase of the pulse.

16. The generator of claim 9, wherein the at least first subsystem has a control circuit and the at least second subsystem has a control circuit.

17. A method for generating a therapeutic pulse, comprising:

generating one or more positive phases for a pulse using a power source and an energy reservoir;

generating one or more negative phases for a pulse using a second power source and a second energy reservoir; and

switching between the one or more positive phases and the one or more negative phases to generate a therapeutic pulse having at least one positive phase and at least one negative phase;

wherein the power source, the energy reservoir, the second power source, and the second energy reservoir are housed in a multiphasic pulse generator.

18. The method of claim 17 further comprising adjusting a shape of each of the one or more positive phases.

19. The method of claim 18 further comprising adjusting a shape of each of the one or more negative phases.

20. The method of claim 17, wherein generating the therapeutic pulse further comprises generating a therapeutic pulse having a plurality of different possible power and energy levels suitable for use in one of cardiac pacing, cardioversion, defibrillation, neurological therapies, nerve therapies and musculoskeletal therapies.

21. The method of claim 17 further comprising individually selecting an amplitude of one or more of the one or more positive phases and one or more negative phases of the pulse.