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A kind of directional dbs electrode with indicator mark and its positioning method

An indicator mark and directional technology, applied in the direction of electrodes, internal electrodes, head electrodes, etc., can solve the problem of not being able to determine the direction of the electrodes, and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2019-10-29
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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  • A kind of directional dbs electrode with indicator mark and its positioning method
  • A kind of directional dbs electrode with indicator mark and its positioning method
  • A kind of directional dbs electrode with indicator mark and its positioning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

[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 and form a table; take medical images and measure them during the operation, according to the previously recorded Look up the data in the table to determine the electrode rotation angle.

Embodiment 2

[0033] like image 3 As shown, the two tape markers can be integrally formed.

Embodiment 3

[0035] like Figure 4 As shown, the mark is composed of two metal point-shaped marks visible on X-ray images, and the positions of the two point-shaped marks are at different heights on the side of the cylinder, and the distance between the two point-shaped marks relative to the central axis is The corresponding radian is any angle not equal to 0 and π.

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

[0037] The preferred range of the different heights is that the height difference between the two dot marks is greater than or equal to 1 / 2 of the overall height of the electrode.

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

[0039] Take any one of the two point marks as an angle mark, and the other as a direction mark, take the axis section where the angle mark is located as the initial plane, and the X-ray is perpendicular to the reference plane, then in the medical image, the angle m...

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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 in particular 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 for the treatment of a genetic dystonia. It mainly implants electrodes into the patient's brain and uses pulse generators to stimulate certain nerve nuclei in the deep part of the brain. Corrects abnormal electrical circuits in the brain, thereby reducing these neurological symptoms. [0003] The directional DBS electrodes commonly used at present are composed of multiple groups of segmented electrodes arranged radially, such as patents CN105263567A and US7668601. 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. Contents of the invention [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N1/05A61N1/36
CPCA61N1/0534A61N1/3606
Inventor 马伯志
Owner BEIJING PINS MEDICAL