MAGNETIC STIMULATION DEVICE

• US 20170333725A1
• Filed: 12/24/2015
• Published: 11/23/2017
• Est. Priority Date: 12/25/2014
• Status: Active Grant

• Current Assignee: Teijin Limited
• Original Assignee: Teijin Pharma Limited (Teijin Limited)
• Inventors: HOTANI, Yurika
• Granted Patent: US 10,471,270 B2
• Time in Patent Office: Days
• CPC Class Codes: A61N 2/006 for magnetic stimulation of nerve tissue
• CPC Class Codes: A61N 2/008 for pain treatment or analgesia
• CPC Class Codes: A61N 2/02 using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence

Abstract

The purpose of the present invention is to enable the convenient supply of optimal therapeutic conditions on a per disorder and patient basis by making a coil driving power supply (1) identify the type of coil (2-1, 2-2) connected thereto and apply a specific current waveform pattern to the coil (2-1, 2-2). The transcranial magnetic stimulation system according to the present invention has one or more current waveform pattern for inducing a magnetic field in the coil, and a detection means for determining the type of the coil (2-1, 2-2) and/or a coil that is connected to the power supply (1), and determines the magnetic field inducing current waveform pattern according to the coil type determined.

Claims

1. A magnetic stimulation device for giving a magnetic stimulation to the body of a patient, comprising:

an excitation coil; and

a coil driving power supply for flowing current having a specific pattern through the excitation coil, wherein a magnetic field is generated by applying a specific current waveform pattern to the excitation coil,

wherein the excitation coil can be selected from a plurality of coil types and connected,

wherein a coil type detection means for distinguishing the type of the connected excitation coil is provided, and

wherein a control unit for controlling an operation of the coil driving power supply selects the current waveform pattern predetermined for each of the excitation coil based on the type of the excitation coil distinguished by the coil type detection means and supplies current with the selected current waveform pattern.

2. The magnetic stimulation device according to claim 1, wherein the coil type detection means is provided with one or more coil type identification terminals on the excitation coil side of a connector which connects the excitation coil and the coil driving power supply and a coil type identification terminal detection means other than the excitation coil and the connector of the excitation coil, and distinguishes the type of the current waveform pattern to be generated by detecting the kind of the coil type identification terminal using the coil type identification terminal detection means.

3. The magnetic stimulation device according to claim 2, wherein the coil type identification terminal means is provided with a resistor for identification on the excitation coil side, and distinguishes the type of current waveform pattern to be generated by a divided voltage potential due to resistance of the resistor.

4. The magnetic stimulation device according to claim 1, wherein the coil type detection means is provided with an excitation coil impedance measurement means, and distinguishes the type of current waveform pattern to be generated using a measurement result by the excitation coil impedance measurement means.

5. The magnetic stimulation device according to claim 1, wherein the magnetic stimulation device is provided with a connector shape feature unit having a different shape for each coil current waveform pattern on the excitation coil side of the connector which connects the excitation coil and the coil driving power supply and a connector shape identification means on the coil driving power supply side,

wherein the connector shape identification means identifies the connector shape feature unit, and the coil type detection means distinguishes the type of the current waveform pattern to be generated.

6. The magnetic stimulation device according to claim 1, wherein the coil type detection means is provided with a current waveform pattern code storage means and a current waveform pattern code transmission means on the excitation coil side, the current waveform pattern code transmission means reads the current waveform pattern code stored in the current waveform pattern code storage means, and the coil type detection means distinguishes the type of current waveform pattern to be generated by transmitting a code representing a current waveform pattern of the excitation coil from the current waveform pattern code transmission means to the coil driving power supply through cable, radio, or optical signal.

7. The magnetic stimulation device according to claim 1, wherein the current waveform pattern is in a biphasic wave that flows current in a specific direction followed by flowing current in the reverse direction.

8. The magnetic stimulation device according to claim 1, wherein a frequency of the current waveform pattern is variable.

9. A transcranial magnetic stimulation device according to claim 1, wherein the transcranial magnetic stimulation device has a memory function which can store the magnetic field inducing current waveform pattern set to a power supply and an operation result of a device, and these information can be recorded together with biological information separately obtained in the memory function to be used as a treatment log.