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Directional DBS (deep brain stimulation) electrode with indication mark and positioning method thereof

An indicator mark, directional technology, applied in the direction of electrodes, internal electrodes, head electrodes, etc., can solve the problem of inability to determine the direction of the electrodes, and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2017-05-24
BEIJING PINS MEDICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the directional DBS electrodes are symmetrical about the central axis, the orientation of the electrodes cannot be determined by X-ray images during the operation

Method used

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  • Directional DBS (deep brain stimulation) electrode with indication mark and positioning method thereof
  • Directional DBS (deep brain stimulation) electrode with indication mark and positioning method thereof
  • Directional DBS (deep brain stimulation) electrode with indication mark and positioning method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the mark is composed of two metal band marks visible in X-ray images. The two band marks are located on the side of the cylinder and are parallel to the central axis. The arc lengths of the two band marks are both between π / 2 and π. And the arc length angles of the central axis corresponding to at least a part of the two strip marks overlap each other, so that the total arc length angle of the corresponding central axis is π.

[0030] Such as figure 2 As shown, a positioning method based on directional DBS electrodes with indicator marks includes:

[0031] Rotate the electrode according to a certain rotation step, take a medical image every time it rotates, and record the length and position of the two strip marks in the image to form a table; take medical images and measure during the operation, according to the previous record Check the data in the table to determine the electrode rotation angle.

Embodiment 2

[0033] Such as image 3 As shown, two strip marks can be integrally formed.

Embodiment 3

[0035] Such as Figure 4 As shown, the mark is composed of two metal dot marks visible in X-ray images, and the positions of the two dot marks are different heights on the side of the cylinder, and the two dot marks are located relative to the central axis. The corresponding radian is any angle that is not equal to 0 and π.

[0036] The preferred range of the arbitrary angle not equal to 0 and π is π / 4 to 3π / 4.

[0037] For the different heights, the height difference between the two dot-shaped marks is greater than or equal to one-half of the overall electrode height as a preferred range.

[0038] A positioning method based on directional DBS electrodes with indicator marks, including:

[0039] Take either one of the two dot marks as the angle mark, and the other as the direction mark. The axis section where the angle mark is located is the initial plane, and the X-ray is perpendicular to the reference plane. In medical images, the angle mark is perpendicular to the central axis. Th...

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Abstract

The invention belongs to the technical field of electrical stimulation medical equipment, and particularly relates to a directional DBS (deep brain stimulation) electrode with an indication mark and a positioning method thereof. A mark visible in a medical image is arranged on a cylinder of the DBS electrode, so that the rotation position of the DBS electrode is obtained through the mark position shown in the medical image; the shown mark is formed by two metal dotted marks visible in the X-ray image; in addition, the positions of the two dotted marks are at different heights on the side surface of the cylinder; in addition, the corresponding radian of a position between the two dotted marks relative to the center axis is any angle which is not equal to 0 and pi; any one dotted mark in the two dotted marks is used as an angle mark; the other dotted mark is used as a directional mark; the rotation angle is calculated through calculating the shortest distance of the angle mark vertical to the center axis; the rotation direction of the electrode can be judged through judging the position of the direction mark in the medical image relative to the angle mark; the medical measure efficiency and precision can be favorably improved.

Description

Technical field [0001] The invention belongs to the technical field of electrical stimulation medical equipment, and particularly relates to a directional DBS electrode with an indicator mark and a positioning method thereof. Background technique [0002] DBS therapy is a deep brain stimulation (DBS) therapy, used to treat a hereditary dystonia, mainly by implanting electrodes into the patient’s brain and using a pulse generator to stimulate certain nerve nuclei in the deep brain. Correct abnormal brain electrical circuits, thereby reducing these neurological symptoms. [0003] At present, the commonly used directional DBS electrodes are formed by a radial arrangement of multi-component segment electrodes, such as patents CN105263567A and US7668601. Because the directional DBS electrode is symmetrical about the central axis, the orientation of the electrode cannot be determined by X-ray images during the operation. Summary of the invention [0004] In view of the above problems, t...

Claims

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Application Information

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IPC IPC(8): A61N1/05A61N1/36
CPCA61N1/0534A61N1/3606
Inventor 马伯志
Owner BEIJING PINS MEDICAL