US 5,405,362 AGranted

Interactive external defibrillation and drug injection system

AssigneeBoard of Regents for the University of Texas System

InventorsGeorge C. Kramer, Joel P. Jenkinson

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Abstract

This invention involves an interactive external defibrillation and drug injection system for use by a human operator for treating cardiac conditions in a patient, particularly in an out-of-hospital or pre-hospital environment. The present invention may also be used within hospitals as well as where intravenous (IV) access has not been established. More specifically, this invention comprises measuring devices capable of measuring and monitoring various physiological indicators in a patient and an expert system capable of analyzing the measured data and making recommendations to an operator for treatment of the patient using any combination of defibrillation, cardioversion, transcutaneous pacing, or vascular drug delivery via intraosseous drug injection. This invention is designed to enable first responders to cardiac emergencies to provide care up to the standard of at least the beginning stages of Advanced Cardiac Life Support (ACLS).

Claims25

Dependent claims

An interactive external defibrillation and drug injection system for use by a human operator for treating cardiac conditions or medical emergencies in a patient, comprising:

(a) a measuring device attachable to a patient and capable of measuring a patient's ECG;
(b) a CPU connected to receive input signals from said measuring device indicative of measurements taken by said measuring device, said CPU being further capable of analyzing said measurements and of transmitting control signals, and said CPU comprising a communication system capable of communicating information and instructions in a manner perceivable by a human operator and capable of receiving and analyzing data input by a human operator relating to the cardiological treatment and condition of a patient;
(c) at least two electrical leads connectable to a patient and capable of delivering a sufficient amount of electrical energy to a patient to cardiovert or defibrillate a patient's heart;
(d) an electrical source comprising a discharge outlet electrically connected to said electrical leads and a control signal input electrically connected to said CPU, said source capable of storing and discharging electrical energy through the discharge outlet to said leads in sufficient predetermined selectable quantities and at sufficient predetermined selectable rates to defibrillate or cardiovert a patient's heart in a manner consistent with selected control signals and instructions from said CPU;
and
(e) at least one intraosseous autoinjector, each of said autoinjectors containing a premeasured amount of a predetermined drug and each of said autoinjectors comprising an identifier such that it can be promptly identified by a human operator in response to an instruction from said CPU.

3 more elements

An interactive external defibrillation and drug injection system for use by a human operator for treating cardiac conditions in a patient, comprising:

(a) a measuring device attachable to a patient and capable of measuring a patient's ECG and blood pressure;
(b) a CPU connected to receive input signals from said measuring device indicative of measurements taken by said measuring device, said CPU being further capable of analyzing said measurements and of transmitting control signals, and said CPU comprising a communication system capable of communicating information and instructions in a manner perceivable by a human operator and capable of receiving and analyzing data input by a human operator relating to the cardiological treatment and condition of a patient;
(c) at least two electrical leads connectable to a patient and capable of delivering a sufficient amount of electrical energy to a patient to cardiovert, defibrillate, or transcutaneously pace a patient's heart;
(d) an electrical source comprising a discharge outlet electrically connected to said electrical leads and a control signal input electrically connected to said CPU, said source capable of storing and discharging electrical energy through the discharge outlet to said leads in sufficient predetermined selectable quantities and at sufficient rates to defibrillate, cardiovert, or transcutaneously pace a patient's heart in a manner consistent with selected control signals and instructions from said CPU, said source further comprising a multiplicity of control devices for use in selectively controlling the magnitude and duration of electrical energy discharged by said source;
and
(e) a portable container comprising at least six intraosseous autoinjectors, each of said autoinjectors containing a premeasured amount of a predetermined drug, said container further comprising an electrical light in close proximity to each of said autoinjectors, each of said lights being electrically connected to said CPU such that each light is illuminated in response to a signal from said CPU.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/170,065Filed 20 Dec 1993 · continuation in part
Priority: 29 Apr 1991
Granted: 11 Apr 1995
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

A61M 5/1723
Electrical or electronic: using feedback of body parameters, e.g. blood sugar or pressure
A61M 5/2033
Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically: spring-loaded one-shot…
A61M 5/315
Details: pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ;…
A61M 5/326
Being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel: fully automatic sleeve extension, i.e. in which…

Family

Serial692,674Parent of this division · filed 29 Apr 1991
Serial958,279Parent of this continuation-in-part · filed 8 Oct 1992
US 5,176,643 AParent of this division · filed 5 Jan 1993
US 5,271,744 AParent of this continuation-in-part
US 5,405,362 AThis patent

From the US filing history. Foreign family members aren’t listed.