DEVICE AND METHOD FOR TRANSCRANIAL MAGNETIC STIMULATION COIL POSITIONING WITH DATA INTEGRATION

• US 20160030762A1
• Filed: 03/17/2014
• Published: 02/04/2016
• Est. Priority Date: 03/15/2013
• Status: Abandoned Application

• Current Assignee: Neuhorizon Medical Corporation
• Original Assignee: Neuhorizon Medical Corporation
• Inventors: GLASS, Iain, Schneider, Todd, HOSFORD, Bruce, DOUCET, Keith
• Application Number:
  US14/777,340
• Publication Number:
  US 20160030762A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2063 Acoustic tracking systems, e.g. using ultrasound
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/0036 including treatment, e.g., using an implantable medical device, ablating, ventilating
• CPC Class Codes: A61B 5/064 using markers A61B5/062 takes precedence
• CPC Class Codes: A61B 5/369 Electroencephalography [EEG] devices for psychotechnics A61B5/16
• CPC Class Codes: A61B 5/4094 Diagnosing or monitoring seizure diseases, e.g. epilepsy
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/6886 Monitoring or controlling distance between sensor and tissue
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints
• CPC Class Codes: A61B 90/14 Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
• 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

There is disclosed device and method provide efficient, comfortable and accurate positioning of a treatment device relative to a specific cranial anatomical location of a subject. In an embodiment, the method comprises: placing a fixed-position locating device on the cranium of the subject; placing an adjustable positioning cap on the cranium of the subject; loading a subject-specific calibration for treatment of a specified cranial anatomical location; determining a three-dimensional position of the fixed-position locator device relative to the adjustable positioning cap; and calibrating the location of the positioning cap by adjusting the positioning cap until it is aligned with the specified cranial anatomical location.

Claims

1. A method of positioning a treatment device relative to a cranial anatomical location of a subject, comprising:

placing a fixed-position locator device on the cranium of the subject;

placing an adjustable positioning cap on the cranium of the subject;

loading a subject-specific calibration for treatment of a specified cranial anatomical location;

determining a three-dimensional position of the fixed-position locator device relative to the adjustable positioning cap; and

calibrating the location of the positioning cap by adjusting the positioning cap until it is aligned with the specified cranial anatomical location.

2. The method of claim 1, wherein the locator device includes three or more passive optical targets or three or more active emitters adapted to identify the three-dimensional position of the locator device relative to a location sensor.

3. The method of claim 2, wherein the three or more targets are passive optical targets identifiable by the location sensor.

4. The method of claim 2, wherein the three or more emitters are active emitters identifiable by the location sensor.

5. The method of claim 2, wherein the locator device comprises one of glasses or a headband adapted to be worn by the subject so as to repeatedly determine the three-dimensional position of the cranium of the subject relative to the adjustable positioning cap.

6. The method of claim 5, further comprising providing a plurality of alignment guides on the adjustable positioning cap, the alignment guides adapted to identify and guide alignment of a target location on the positioning cap.

7. The method of claim 6, further comprising providing a plurality of corresponding alignment receptacles for receiving the plurality of alignment guides.

8. The method of claim 7, further comprising providing the alignment receptacles in a TMS coil adapted to be mated to the adjustable positioning cap.

9. The method of claim 8, further comprising providing an array of electroencephalogram (EEG) electrodes on the adjustable positioning cap.

10. The method of claim 2, further comprising monitoring the EEG electrodes to assess the proximity of the TMS coil.

11. A system for positioning a treatment device relative to a cranial anatomical location of a subject, the system comprising:

a fixed-position locator device for placement on the cranium of the subject;

an adjustable positioning cap for placement on the cranium of the subject;

processing means for loading a subject-specific calibration for treatment of a specified cranial anatomical location;

processing means for determining a three-dimensional position of the fixed-position locator device relative to the adjustable positioning cap; and

processing means for guiding the calibration of the location of the positioning cap until it is aligned with the specified cranial anatomical location.

12. The system of claim 11, wherein the locator device includes three or more passive optical targets or three or more active emitters adapted to identify the three-dimensional position of the locator device relative to a location sensor.

13. The system of claim 12, wherein the three or more targets are passive optical targets identifiable by the location sensor.

14. The system of claim 12, wherein the three or more emitters are active emitters identifiable by the location sensor.

15. The system of claim 12, wherein the locator device comprises one of glasses or a headband adapted to be worn by the subject so as to repeatedly determine the three-dimensional position of the cranium of the subject relative to the adjustable positioning cap.

16. The system of claim 15, further comprising a plurality of alignment guides on the adjustable positioning cap, the alignment guides adapted to identify and guide alignment of a target location on the positioning cap.

17. The system of claim 16, further comprising a plurality of corresponding alignment receptacles for receiving the plurality of alignment guides.

18. The system of claim 17, further comprising a TMS coil having alignment receptacles adapted to be mated to the adjustable positioning cap.

19. The system of claim 18, further comprising an array of electroencephalogram (EEG) electrodes on the adjustable positioning cap.

20. The system of claim 19, wherein the EEG electrodes are monitored to assess the proximity of the TMS coil.