Defibrillator with overridable CPR-first protocol

• US 9,248,304 B2
• Filed: 04/12/2011
• Issued: 02/02/2016
• Est. Priority Date: 01/26/2005
• Status: Active Grant

• Current Assignee: Physio-Control Incorporated (Stryker Corporation)
• Original Assignee: Physio-Control Incorporated (Stryker Corporation)
• Inventors: Banville, Isabelle, Hampton, David R., Kavounas, Gregory T., Nova, Richard C.
• Primary Examiner(s): Koharski, Christopher D
• Assistant Examiner(s): OROPEZA, FRANCES P
• Application Number:
  US13/085,053
• Publication Number:
  US 20110190836A1
• Time in Patent Office: 1,757 Days
• Field of Search: 607/5
• US Class Current: 1/1
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: A61N 1/3987 characterised by the timing or triggering of the shock

Abstract

Methods and apparatus are provided for determining a defibrillation treatment protocol in an external defibrillator whereby a user may override a CPR-first default protocol. The method includes following steps configured in a defibrillator controller of issuing an inquiry; waiting for a response to the inquiry for a set time; ordering a CPR treatment protocol if no response is received within the set time; analyzing a response; ordering a CPR treatment protocol upon receiving a non-affirmative response to the inquiry; and ordering a shock treatment protocol upon receiving an affirmative response to the inquiry. Upon selecting a shock treatment protocol, the defibrillator performs a shock analysis under the shock treatment protocol, and either orders a CPR treatment protocol if shock treatment is not indicated by the shock analysis or provides a defibrillation shock if shock treatment is indicated by the shock analysis. Queries may be presented to a user in visual, audible, or both visual and audible format.

Claims

1. An external defibrillator for providing a selected treatment protocol to a patient comprising:

a plurality of electrodes affixed to the defibrillator and capable of being attached to a patient so as to provide shock therapy and to provide patient data to the defibrillator;

an input device disposed on the defibrillator;

an output device disposed on the defibrillator; and

a controller disposed in said defibrillator, said controller coupled to said plurality of electrodes, said input device, and said output device, and said controller also configured to;

issue a query as an output;

wait for a response to the query within a set time from the issuance of the query;

order a CPR protocol if no response to the query is received within the set time from the issuance of the query;

analyze a response received within the set time;

order the CPR protocol if the analyzed response is non-affirmative; and

order a shock protocol if the analyzed response is affirmative.

2. The external defibrillator according to claim 1, further comprising an override function configured to cause the controller to select a shock treatment protocol.

3. The defibrillator according to claim 1, in which the output device comprises a screen.

4. The defibrillator according to claim 1, in which the output device comprises a speaker capable of providing audible sound to a defibrillator user.

5. The defibrillator according to claim 4, in which the controller is configured to provide voice prompts through said speaker as a query.

6. The defibrillator according to claim 1, in which the input device comprises a microphone and the controller is configured to recognize voice commands spoken through the microphone as the response.

7. The defibrillator according to claim 1, in which the controller is further configured to receive patient data from the plurality of electrodes as the response to the query.

9. The defibrillator according to claim 2, in which the controller is configured to implement the override function.

10. The defibrillator according to claim 2, in which the controller is separate from the override function.

8. An external defibrillator for providing a selected treatment protocol to a patient comprising:

a plurality of electrodes affixed to the defibrillator and capable of being attached to a patient so as to provide shock therapy and to provide patient data to the defibrillator;

an input device disposed on the defibrillator;

an output device disposed on the defibrillator;

means disposed in said defibrillator for issuing a query;

means disposed in said defibrillator for waiting for a response to the query within a set time from the issuance of the query;

means disposed in said defibrillator for ordering a CPR protocol if no response to the query is received within the set time from the issuance of the query;

means disposed in said defibrillator for analyzing a response received within the set time;

means disposed in said defibrillator for ordering the CPR protocol if the analyzed response is non-affirmative; and

means disposed in said defibrillator for ordering a shock protocol if the analyzed response is affirmative.

11. The external defibrillator according to claim 8, further comprising override means for causing a shock treatment protocol to be selected.

12. The defibrillator according to claim 8, further comprising means for providing audible sound to a defibrillator user.

13. The defibrillator according to claim 8, further comprising means for recognizing voice commands spoken through a microphone as the response.

14. The defibrillator according to claim 8, further comprising means for receiving patient data from the plurality of electrodes as the response to the query.