Encephalic electrode

A technology of internal electrodes and electrodes, which is applied in medical science, heating surgical instruments, sensors, etc., can solve the problems of inability to accurately locate intracranial electrodes and implement large-scale electrocoagulation damage or radiofrequency ablation, so as to prevent plastic deformation , increase the range, extend the length of the effect

Active Publication Date: 2016-11-16
CHANGZHOU RUISHENAN MEDICAL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the present invention will solve the problem that the intracranial electrodes in the prior art cannot be precisely positioned and implemented a large-scale electrocoagulation ablation or radiofrequency ablation, thereby providing a method that can precisely locate and implement a large-scale electrocoagulation ablation or ablation Intracranial electrodes for radiofrequency ablation

Method used

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  • Encephalic electrode
  • Encephalic electrode
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Examples

Experimental program
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Effect test

Embodiment 1

[0034] This embodiment provides a kind of intracranial electrode, such as figure 1 shown, including:

[0035] Rigid outer tube 2, one end of the outer tube 2 is open, the other end is a blind end, and the side wall near the end of the blind end is provided with an opening;

[0036] A flexible electrode 1 , the electrode 1 has an arc-shaped end, and after the electrode is inserted into the outer tube 2 , the arc-shaped end can protrude from the opening of the outer tube 2 .

[0037] For the intracranial electrode in the above embodiment, the electrode 1 is set in the rigid outer tube 2. When in use, the electrode 1 is taken out first, and the outer tube 2 is inserted into the intracranial directly to the affected area. Since the outer tube 2 is rigid, it is convenient to bear force. Insert into the cranium, and then insert the electrode 1 into the outer tube 2 for precise positioning through the outer tube 2. Since the electrode 1 is flexible, during the process of inserting t...

Embodiment 2

[0053] This embodiment provides a kind of intracranial electrode, such as figure 2 with 3 As shown, it is an improvement on the basis of Embodiment 1. The difference from Embodiment 1 is that an elastic inner core is provided in the center of the sleeve 11, and the elastic inner core provides a central support force for the sleeve 11. Function, can improve the elasticity of intracranial electrodes.

[0054] The wire 121 can be adhered to the surface of the sleeve 11 or integrated with the sleeve 11 .

[0055] In the above embodiments, all the ring metal contacts 12 can receive the electrical signals of the brain, and can be stimulated by stimulating current respectively.

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Abstract

The invention provides an encephalic electrode. A rigid outer tube is sleeved with an electrode body. In the use process, the electrode body is firstly taken out, the outer tube is inserted into the cranium, and due to the fact that the outer tube is rigid, the outer tube can be conveniently inserted into the cranium under stress. After the outer tube is used for precise locating, the electrode body is inserted into the outer tube, and due to the fact that the electrode body is flexible, in the process of inserting the electrode body into the outer tube from one end, the electrode body stretches into the outer tube under the condition of elastic deformation and stretches out from an opening; after the arc-shaped stretches out, after the electrode body is restored to the original shape and reaches the position, the outer tube can be drawn out, the electrode body is in contact with surrounding brain tissue, and the condition of the brain is detected. According to the encephalic electrode, the arc-shaped end is arranged at the front end of the electrode body, after the arc-shaped end is arranged, the electrode body can be rotated to adjust the position of the arc-shaped end at the front end in the cranium, and therefore the range of implementing the electrocoagulation damage operation or radiofrequency ablation is greatly widened; through testing, in the same state of other conditions, compared with a vertical electrode, the range is widened by about 8 times.

Description

technical field [0001] The invention relates to an intracranial electrode and belongs to the technical field of medical equipment. Background technique [0002] The intracranial electrode is a multi-contact electrode made of a special material. Its biggest advantage is that it can directly record the electrical activity of the cerebral cortex for short-term implantation into the brain. Intracranial electrodes can generally be divided into deep electrodes, subdural strip electrodes, and grid-shaped cortical electrodes. The application of cortical EEG or deep EEG recorded by intracranial electrodes can eliminate the influence of structures such as scalp, skull, and dura mater on the recording of EEG activity; Influence of onset origin. When the epileptic focus is located near important functional areas such as movement and language, intracranial electrodes can also be used for cortical electrical stimulation mapping to locate the precise location of the functional area. Int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0478A61B18/14
CPCA61B5/6852A61B5/6868A61B18/148A61B18/1487A61B2018/00446A61B2018/1405A61B5/291
Inventor 赵全军杜玉惠蒋军庭
Owner CHANGZHOU RUISHENAN MEDICAL DEVICES
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