IL41530A

IL41530A - Apparatus and method for measuring heartbeat

Info

Publication number: IL41530A
Application number: IL41530A
Authority: IL
Original assignee: Survival Technology
Priority date: 1972-03-01
Filing date: 1973-02-13
Publication date: 1976-02-29
Also published as: BE795976A; ES412169A1; FR2174206A1; AU475944B2; IT976603B; AR204393A1; US3792700A; NL7302874A; AU5241573A; IL41530A0; CA987739A; DE2310320C3; BR7301491D0; DE2310320B2; FR2174206B1; ES439320A1; DE2310320A1; JPS48100996A; JPS5412760B2; GB1426951A

Claims

1. A method, of monitoring the electrical activity of the hear of a human under one of a variety of conditions Including self monitoring under emergency conditions by the use of a portable batter operated monitoring apparatus which includes a pair of electrode bodies having exterior surface means fo enabling the bodies to be easily positioned in the armpits of the human to be monitored and to be conveniently and comfortably self-retained in such position solely by the human by engagement betwee the adjacent arm portions and torso in the armpit ar as , said method comprising the steps of positioning said electrode bodies within the armpits of the human to be monitored and self-retaining the same therein solely by the human b engagement of the bodies between the adjacent arm portions and torso in the armpit areas, establishing a conductive circuit from a position spaced from said bodies which extends through said bodies to the exterior surface means thereof and between the latter through the torso of the human through which the electrical impulses within th© torso of the human which trigger the heartbeats of the human are reliably conducted, amplifying the electrica impulses conducted in said circuit and substantially suppressing other electrical signals, such as artifact and the like, which may be conducted in said circuit, and !\ reliably producing output indications representative -of the electrical Impulses of the heart of the human.

2. A method of monitoring the electrical activity of the heart of a human according to Claim 1 wherein said electrode bodies have dry exterior surface means which are introduced into the armpits of the human i a dr condition and wherein said conductive circuit extends through said subtrpde bodies to the dr exterior surface means thereof and between the latter through the torso of the human.

3. Apparatus or monitoring the electrical activity of conditions including sel -monitoring under emergency conditioner said apparatus comprising. housing means for enabling the same to be easily and conveniently carried by a human operator, a pair of separate electrode bodies, said electrode bodies having exterior surface means for enabling said bodies to be easily positioned in the armpits of a human to be monitored and to be conveniently and comfortably self-retained in such position solely by the human by engagement between the adjacent arm portions and torso in the armpit areas, a pair of elongated flexible lead elements extending betwee each electrode body and said housing means, electrical conductor means operable whe said electrode bodies are positioned and retained in the armpits of a human as aforesaid, for establishing an electrical circuit withi said housing means which extends therefrom through said lead elements and through said electrode bodies to the exterior surface means thereof and between the latter through the torso of the human through which the electric impulses within the torso of the human which trigge the heartbeats of the human are reliably conducted from the torso to said housing means, and battery operated electric circuit means carried by said housing means operable in response to the conducting of said electrica Impulses through the aforesaid electrical circuit by said electrical conductor means to said housing means to amplify said electrical impulses and substantiall suppress other electrical signals, such as artifact and the like , which may be conducted in said circuit, and to reliably produce output indications representative of the electrical impulses of the heart of the human.

4. Apparatus as in Claim 3 wherein each of said electrode bodies is formed of electrically conductive material in a three dimensional configuration defining substantially the entire exterior surface means thereof for making electrical connection to the substantially enclosed skin surface areas of the human armpit whe the upper arm is in its normal relaxed position substantially adjacent to the human body thus maximizing the area of electrical contact with th human armpit tissues.

5. Apparatus for monitoring the electrical activity of the heart of a human according to Claim 4, characterized in that the exterio surfaces o the electrode bodies are dry, and in that the electrical conductor means is operative without the provision of conductive paste or the like between said dry exterior surfaces and the skin engaged thereby.

6. Apparatus as in Claim 5 wherein each of said electrode bodies is formed from a carbon loaded plastic material, which materia defines substantially the entire dry exterior surface means thereof.

7. Apparatus as in Claim 6 wherein each of said lead elements is embedded within the associated electrode body.

8. Apparatus as in Claim 7 wherein each of said electrod bodies has an elongated configuration in one direction and the lead element associated therewith extends therefrom generally in said one direction* SC CB