Chest compression device with electro-stimulation

• US 6,213,960 B1
• Filed: 06/19/1998
• Issued: 04/10/2001
• Est. Priority Date: 06/19/1998
• Status: Expired due to Term

• Current Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Original Assignee: Revivant Corporation (Asahi Kasei Corporation)
• Inventors: Sherman, Darren R., Bystrom, Steven R.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US09/100,840
• Time in Patent Office: 1,026 Days
• Field of Search: 601/1, 601/41-44, 601/105, 601/106, 601/134, 601/135, 601/150-151, 601/9, 601/11, 601/13, 607/2-5, 607/9, 607/17, 607/18, 607/23, 607/30, 607/42, 607/48, 607/62, 600/509, 600/510, 600/515, 606/201-202, 128/204.21, 128/204.23
• US Class Current: 601/41
• CPC Class Codes: A61H 2031/003 with alternated thorax decompression due to lateral compression
• CPC Class Codes: A61H 2201/018 By limiting the applied torque or force
• CPC Class Codes: A61H 2201/10 with further special therapeutic means, e.g. electrotherapy, magneto therapy or radiation therapy, chromo therapy, infrared or ultraviolet therapy
• CPC Class Codes: A61H 2201/5007 computer controlled
• CPC Class Codes: A61H 2201/5043 Displays
• CPC Class Codes: A61H 2201/5048 Audio interfaces, e.g. voice or music controlled
• CPC Class Codes: A61H 2201/5097 wireless
• CPC Class Codes: A61H 2205/083 Abdomen
• CPC Class Codes: A61H 2230/04 Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
• CPC Class Codes: A61H 2230/207 partial O2-value
• CPC Class Codes: A61H 31/00 Artificial respiration or heart stimulation, e.g. heart massage artificial respiration by treatment with gas or air, e.g. mouth-to-mouth respiration A61M16/00; applying electric currents by contact electrodes for stimulation, e.g. heart pace-makers A61N1/36 ; teaching or training models, demonstration models for medical purposes G09B23/288
• CPC Class Codes: A61H 31/005 with feedback for the user
• CPC Class Codes: A61H 31/006 Power driven
• CPC Class Codes: A61N 1/3601 of respiratory organs
• CPC Class Codes: A61N 1/39044 in combination with cardiopulmonary resuscitation [CPR] therapy
• CPC Class Codes: Y10S 601/06 Artificial respiration conforming to shape of torso
• CPC Class Codes: Y10S 601/09 including biological sensors
• CPC Class Codes: Y10S 601/10 Artificial respiration combined with non-artificial respiration therapy

Abstract

A device for performing chest compressions for CPR in coordination with applying electro-stimulus for additional resuscitative actions such as electro-ventilation, electro-counterpulsion, and defibrillation. The device includes a chest compression mechanism, electrodes and power supply for electro-stimulus, and a control system for applying electro-stimulus in coordination with the action of the chest compression mechanism.

Claims

1. A device for resuscitating a patient comprising:

a chest compression device capable of repeatedly compressing the chest of the patient and causing or allowing the chest to expand;

an electro-stimulation system comprising an electrode capable of being attached to the body at a location permitting electrical stimulation of respiratory muscles by electrical energy transmitted through the electrode and an electrical stimulation generator operably connected to the electrode, said electrical stimulation generator being capable of generating electrical energy and transmitting said energy to the electrode for stimulation of the respiratory muscles; and

a controller for controlling the chest compression device and the electro-stimulation system, said controller coordinates the operation of the chest compression device with the operation of the electro-stimulation system so that the electro-stimulation system transmits electrical stimulation to the electrode during periods of time when the chest compression device is causing or allowing the chest to expand.

2. The device of claim 1, further comprising at least one feedback device operably connected to the patient, wherein said feedback device comprises a sensor, an electrical signal generator and a signal transmitter, and said feedback device senses at least one biological parameter of the patient, generates a corresponding electrical signal, and transmits the corresponding signal to the controller, and wherein the controller adjusts the operation of the electro-stimulation system on the basis of the sensed feedback.

3. The device of claim 2, wherein said feedback device further comprises a protection circuit for protecting the feedback device from the electrical energy applied by the electro-stimulation system.

4. The device of claim 1, wherein the controller is capable of receiving a stop signal from the controller, the stop signal signifying a command to cease chest compression and electro-stimulation, and said controller checks for the stop signal before each cycle of chest compression and before each transmission of electrical energy to the electrode.