Pulse detection apparatus, software, and methods using patient physiological signals

Patent metadata

Field	Value
Publication number	US-2016106992-A1
Application number	US-201514976976-A
Country	US
Kind code	A1
Filing date	Dec 21, 2015
Priority date	Sep 30, 1999
Publication date	Apr 21, 2016
Grant date	—

Abstract

Appropriate cardiac therapy is determined by data sensed and analyzed by the disclosed defibrillators and other medical devices that one or both of treat and monitor a patient. The disclosed devices sense various patient physiological parameters including patient pulse and breathing data to determine whether the patient has a pulse and to determine if the patient is breathing. Depending on the analysis of the generated patient physiological data, the disclosed devices determine the appropriate therapy for the patient, which can include providing breathing assistance to the patient and providing electrotherapy and other therapies to the patient. Some of the disclosed medical devices can be wearable by the patient. The disclosed devices can include therapy modules like electrotherapy for delivering therapies to the patient while other devices monitor but do not deliver the therapies to the patient.

First claim

1 . An external defibrillator, comprising:
a pulse sensor configured to sense a pulse of a patient and output patient pulse data; a breathing detection device configured to detect whether the patient is breathing and to output patient breathing data; a controller operatively coupled to the pulse sensor and the breathing detection device and configured to
analyze the output patient pulse data;
determine that the patient has a pulse based on the analyzed output patient pulse data;
analyze the output patient breathing data;
determine that the patient is not breathing based at least in part on the analyzed output patient pulse data; and
generate an instruction to provide breathing assistance to the patient based on the determination that the patient has a pulse and the determination that the patient is not breathing; and
an output device configured to issue a prompt to provide breathing assistance to the patient based on the generated instruction.

2 . The external defibrillator of claim 1 , wherein the pulse sensor is also configured to sense a further pulse of a patient and output further patient pulse data and wherein the controller is further configured to
analyze the further output patient pulse data; and determine the patient has no pulse based on the analyzed further output patient pulse data.

3 . The external defibrillator of claim 2 , wherein the controller is further configured to determine the patient has no pulse based on the analyzed further output patient pulse data and the output patient breathing data.

4 . The external defibrillator of claim 2 , wherein the controller is further configured to generate an instruction to deliver electrotherapy to the patient based on the determination that the patient has no pulse.

5 . The external defibrillator of claim 4 , wherein the electrotherapy includes defibrillation therapy.

6 . The external defibrillator of claim 4 , wherein the controller is further configured to cause the external defibrillator to deliver the electrotherapy to the patient.

7 . The external defibrillator of claim 4 , wherein the instruction to deliver electrotherapy includes an instruction to deliver pacing stimuli to the patient.

8 . The external defibrillator of claim 2 , wherein the controller is further configured to generate an instruction to deliver cardiopulmonary resuscitation to the patient based on the determination that the patient has no pulse.

9 . The external defibrillator of claim 1 , wherein the controller being configured to generate the instruction to provide breathing assistance to the patient includes the controller being configured to generate an instruction to provide ventilation assistance to the patient.

10 . The external defibrillator of claim 1 , wherein the controller is configured to generate the instruction to provide manual breathing assistance to the patient.

11 . The external defibrillator of claim 1 , wherein the controller is configured to generate the instruction to provide automatic breathing assistance to the patient.

12 . The external defibrillator of claim 11 , wherein the controller is further configured to cause the external defibrillator to provide the automatic breathing assistance to the patient.

13 . The external defibrillator of claim 12 , wherein the external defibrillator further includes a ventilator and the controller is further configured to cause the ventilator to provide the automatic breathing assistance to the patient.

14 . The external defibrillator of claim 1 , wherein the external defibrillator is structured to be wearable by the patient.

15 . A device structured to provide one or both of treatment and monitoring of a patient, the device comprising:
a pulse sensor configured to sense a pulse of a patient and output patient pulse data; a breathing detection device configured to detect whether the patient is breathing and to output patient breathing data; a controller operatively coupled to the pulse sensor and the breathing detection device and configured to
analyze the output patient pulse data;
determine that the patient has a pulse based on the analyzed output patient pulse data;
analyze the output patient breathing data;
determine that the patient is not breathing based at least in part on the analyzed output patient pulse data; and
generate an instruction to provide breathing assistance to the patient based on the determination that the patient has a pulse and the determination that the patient is not breathing; and
an output device configured to issue a prompt to provide breathing assistance to the patient based on the generated instruction.

16 . The device of claim 15 , wherein the pulse sensor is also configured to sense a further pulse of a patient and output further patient pulse data and wherein the controller is further configured to
analyze the further output patient pulse data; and determine the patient has no pulse based on the analyzed further output patient pulse data; and the output device is further configured to issue a further prompt indicating that the patient has no pulse.

17 . The device of claim 15 , wherein the controller is further configured to determine the patient has no pulse based on the analyzed further output patient pulse data and the output patient breathing data.

18 . The device of claim 16 , wherein the controller is further configured to generate an instruction to deliver electrotherapy to the patient based on the determination that the patient has no pulse and the output device is further configured to issue a prompt to deliver the electrotherapy to the patient.

19 . The device of claim 18 , wherein the instruction to deliver electrotherapy includes an instruction to deliver pacing stimuli to the patient.

20 . The device of claim 18 , wherein the instruction to deliver electrotherapy generated by the controller includes an instruction to deliver defibrillation therapy to the patient.

21 . The device of claim 15 , wherein the controller being configured to generate the instruction to provide breathing assistance to the patient includes the controller being configured to generate an instruction to provide ventilation assistance to the patient.

22 . The device of claim 21 , wherein the controller is configured to generate the instruction to provide one of manual and automatic breathing assistance to the patient.

23 . The device of claim 21 , wherein the device further includes a ventilator and wherein the controller is further configured to cause the ventilator to provide the automatic breathing assistance to the patient.

24 . The device of claim 15 , wherein the device is wearable.

Assignees

• Physio Control Inc

Inventors

• Joo Tae H
• Stickney Ronald E
• Jayne Cynthia P
• Lank Paula
• O'Hearn Patricia
• Hampton David R
• Taylor James W
• Crone William E
• Yerkovich Daniel

Classifications

• A61B7/00

  Instruments for auscultation · CPC title

• A61B7/04

  Electric stethoscopes · CPC title

• A61N1/3925

  Monitoring; Protecting · CPC title

• A61B5/7264

  Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems · CPC title

• A61N1/3987 Primary

  characterised by the timing or triggering of the shock · CPC title