US4576170A — Heart monitor and defibrillator device

Claim 1

Independent Claim 127 words

A heart monitor and defibrillator device for continuously monitoring heart functions and automatically administering defibrillating shock charges, comprising sensing electrodes for continuously detecting heart impulses, amplification means for intensifying and sorting the heart impulses detected by said sensing electrodes, microprocessor means receiving the impulses from said amplification means for analyzing the impulses and determining when a defibrillation shock charge is required, defibrillation circuitry controlled by said microprocessor means having automatic recharge capabilities, a delay means for discharging a defbrillation charge a short time after the necessity of defibrillation is detected by said microprocessor means, warning means for notifying the patient before a defibrillation shock charge is administered, and defibrillator electrodes to be attached to the patient's chest for administering the defibrillation shock charge to the patient's heart.

Claim 2

Dependent Claim 127 words

A heart monitor and defibrillator device for continuously monitoring heart functions and automatically administering defibrillating shock charges, comprising sensing electrodes for continuously detecting heart impulses, amplification means for intensifying and sorting the heart impulses detected by said sensing electrodes, microprocessor means receiving the impulses from said amplification means for analyzing the impulses and determining when a defibrillation shock charge is required, defibrillation circuitry controlled by said microprocessor means having automatic recharge capabilities, a delay means for discharging a defbrillation charge a short time after the necessity of defibrillation is detected by said microprocessor means, warning means for notifying the patient before a defibrillation shock charge is administered, and defibrillator electrodes to be attached to the patient's chest for administering the defibrillation shock charge to the patient's heart.

Claim 3

Dependent Claim 32 words

A heart monitor and defibrillator device as defined in claim 1 in which a first housing surrounds said amplification means and said microprocessor means, and a second housing surrounds said defibrillation circuitry.

Claim 4

Dependent Claim 21 words

A heart monitor and defibrillator device as defined in claim 1 in which said warning means includes a light emitting diode.

Claim 5

Dependent Claim 26 words

A heart monitor and defibrillator device as defined in claim 1 in which said warning means includes an earplug for conveying a signal to the patient.

Claim 6

Dependent Claim 66 words

A heart monitor and defibrillator device as defined in claim 1 in which said defibrillator electrodes include a layer of skin adhering electrically conductive paint, wire mesh in low resistance contact with said paint layer, securing means for holding said wire mesh in electrical contact with said paint layer, and connecting means for conducting a defibrillation shock charge from said defibrillation circuitry to said wire mesh.

Claim 7

Dependent Claim 40 words

A heart monitor and defibrillator device as defined in claim 5 in which said securing means is a second layer of electrically conductive paint disposed on said wire mesh and bonded to said first paint layer to encapsulate said mesh.

Claim 8

Dependent Claim 22 words

A heart monitor and defibrillator device as defined in claim 5 in which said securing means is a plurality of adhesive strips.

Claim 9

Dependent Claim 145 words

A heart monitor and defibrillator device as defined in claim 7 in which said defibrillation circuitry includes a battery means for supplying electrical energy, a plurality of capacitors for holding a dischargeable shock charge of cardioverting potential, a four-pole double-throw relay having contacts electrically connected to said capacitors to place said capacitors in parallel connection for charging from said battery means and to change the connection of said capacitors to series connection for discharge of a shock charge of cardioverting potential, a triggering capacitor for said relay, circuit means connecting said battery means and said triggering capacitor through said microprocessor means for charging said capacitor when said circuit means is closed by said microprocessor means, a resistor in said circuit means between said battery means and said triggering capacitor, and an electrical connection from said triggering capacitor to said relay having a Zener diode therein.

Claim 10

Dependent Claim 47 words

A heart monitor and defibrillator device as defined in claim 1 in which said defibrillation circuitry includes a battery means connected thereto for supplying electrical energy, storage means for holding a dischargeable shock charge of cardioverting potential, and triggering means for releasing said shock of cardioverting potential.

Claim 11

Dependent Claim 55 words

A heart monitor and defibrillator device as defined in claim 9 in which said storage means includes a plurality of capacitors connected in parallel arrangement for charging by said battery means, and a relay for switching said capacitors to a series connection by said triggering means for release of a shock charge of cardioverting potential.

Claim 12

Dependent Claim 101 words

A heart monitor and defibrillator device as defined in claim 10 in which said triggering means includes a capacitor charged by said battery means when said microprocessor means closes a connection therebetween, a four-pole double-throw relay having a contact for each of said capacitors of said plurality of capacitors, one position of said contacts being for parallel connection of said capacitors of said plurality of capacitors, the other position of said contacts being for series connection of said capacitors of said plurality of capacitors, and a Zener diode disposed in an electrical connection between said relay and said triggering means capacitor.

Claim 13

Dependent Claim 31 words

A heart monitor and defibrillator device as defined in claim 11 in which said delay means includes a resistor in electrical connection between said battery means and said triggering means capacitor.

Claim 14

Dependent Claim 146 words

In a heart defibrillator: a defibrillation circuit comprising at least one electrode for delivering an electric charge to a patient, a sensor for detecting heart impulses and creating a signal therefrom, a battery means for supplying electrical energy, a storage means for holding a charge of cardioverting potential including a plurality of capacitors charged by said battery means, a four-pole double-throw relay having contacts connected to said capacitors to place said capacitors in parallel connection for charging from said battery means and to change the connection of said capacitors to series connection for the discharge of a defibrillation charge, a triggering means for said relay, and means responsive to abnormalities in said heart impulse signals for activating said triggering means to actuate said relay to change the connection of said capacitors into a series connection when the electric charge is to be transmitted to said electrode.

Claim 15

Dependent Claim 146 words

In a heart defibrillator: a defibrillation circuit comprising at least one electrode for delivering an electric charge to a patient, a sensor for detecting heart impulses and creating a signal therefrom, a battery means for supplying electrical energy, a storage means for holding a charge of cardioverting potential including a plurality of capacitors charged by said battery means, a four-pole double-throw relay having contacts connected to said capacitors to place said capacitors in parallel connection for charging from said battery means and to change the connection of said capacitors to series connection for the discharge of a defibrillation charge, a triggering means for said relay, and means responsive to abnormalities in said heart impulse signals for activating said triggering means to actuate said relay to change the connection of said capacitors into a series connection when the electric charge is to be transmitted to said electrode.

Claim 16

Dependent Claim 65 words

In a defibrillator: a defibrillation circuit as defined in claim 13 in which said triggering means includes a capacitor, circuit means for connecting said battery means to said triggering capacitor only when defibrillation is required, a connection from said capacitor of said triggering means to said relay, and a Zener diode disposed in said connection between said relay and said capacitor of said triggering means.

Claim 17

Dependent Claim 32 words

In a defibrillator: a defibrillation circuit as defined in claim 14 in which a resistor is disposed in said circuit means between said battery means and said capacitor of said triggering means.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-03-17	1989-09-16	1990-03-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-03-17	1993-09-16	1994-03-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-03-17	1997-09-16	1998-03-18	$7700.00	Window Closed / Lapsed

Heart monitor and defibrillator device

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