# US 2018/0056064 A1 · Therapy device with current titration

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- Number: US 2018/0056064 A1
- Document ID: US20180056064A1
- Status: Published application
- Kind: A1
- Application number: 15/696,872
- Filed: 2017-09-06
- Published: 2018-03-01
- Earliest claimed: 2009-05-12
- Assignees: Mecta Corporation
- Applicants: Mecta Corporation
- Inventors: Harold A. Sackeim
- Web page: https://patentgrep.com/patent/US20180056064A1

## CPC

- A61N 1/36025: {for treating a mental or cerebral condition}
- A61N 1/36031: {using physiological parameters for adjustment}
- A61N 1/36034: {specified by the stimulation parameters}
- A61N 1/3727: {characterised by the modulation technique}
- A61N 1/38: for producing shock effects
- A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B)

## Abstract

An ECT system capable of focusing the electrical signals on a specific portion of the patient's brain is provided. The ECT system includes a means of applying unidirectional electrical signals and asymmetric electrodes for focusing the signals on the patient. A method of titrating an electro-convulsive therapy (ECT) system and a method of operating an ECT system are also provided. The method includes setting an initial current value, administering an ECT signal to the patient, determining if the seizure threshold has been achieved, and repeating as necessary until the seizure threshold is achieved.

## Claims

### Claim 1

A device for inducing electro-convulsive therapy (ECT), the device comprising:
a signal generator configured to generate a seizure-inducing ECT signal, the ECT signal having an electric current component;
a current controller structured to adjust the electric current of the ECT signal to a constant current level less than 500 milliamps; and
at least two ECT stimulus electrodes configured to apply the ECT signal to a patient.

### Claim 2 (depends on 1)

The device of claim 1, further comprising:
a patient monitoring input configured to receive a signal from a patient monitoring sensor in response to the ECT signal applied to the patient.

### Claim 3 (depends on 2)

The device of claim 2, in which the current controller is adjustable by a user.

### Claim 4 (depends on 3)

The device of claim 3, in which the adjustable current controller is adjustable through a user interface coupled to the current controller that is configured to permit a user to set the adjustable current of the ECT signal.

### Claim 5 (depends on 1)

The device of claim 1, in which the at least two ECT stimulus electrode includes a positive electrode and a negative electrode, and in which the negative electrode is asymmetric in size to the positive electrode.

### Claim 6 (depends on 1)

The device of claim 1, in which the patient monitoring sensor includes an electroencephalogram.

### Claim 7 (depends on 1)

The device of claim 1, further comprising a rectification circuit configured to convert a bi-directional current ECT signal to a uni-directional current ECT signal.