Deep brain stimulation cannula electrode and preparation method of random bionic microstructure with textured surface of deep brain stimulation cannula electrode

An electrode surface, micro-texture technology, applied in the direction of internal electrodes, head electrodes, electrodes, etc., can solve the problems of brain tissue damage and high friction, and achieve the purpose of reducing puncture damage, reducing friction area, and reducing puncture friction. force effect

Active Publication Date: 2021-08-13
YANTAI UNIV
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Problems solved by technology

[0006] Aiming at the problem that the friction force between the cannula electrode and the brain tissue is large in the prior art, and the brain tissue will be damaged during the puncture process, a random biomimetic micro-tissue that stimulates the cannula electrode and its surface roughness for deep brain stimulation is provided. Preparation method

Method used

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  • Deep brain stimulation cannula electrode and preparation method of random bionic microstructure with textured surface of deep brain stimulation cannula electrode
  • Deep brain stimulation cannula electrode and preparation method of random bionic microstructure with textured surface of deep brain stimulation cannula electrode
  • Deep brain stimulation cannula electrode and preparation method of random bionic microstructure with textured surface of deep brain stimulation cannula electrode

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Embodiment Construction

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0032] see Figure 1-Figure 4 , This embodiment provides a method for preparing a random biomimetic micro-texture by furring the electrode surface of a deep brain stimulation cannula.

[0033] Such as figure 1 , 2 As shown, the material, length, outer circle and inner hole diameter of the cannula electrode for this method are the ...

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Abstract

The invention discloses a deep brain stimulation cannula electrode and a preparation method of a random bionic microstructure with a textured surface of the deep brain stimulation cannula electrode. The preparation method is carried out on a micro electric discharge machine tool; the micro electric discharge machine tool comprises a power supply, a tool electrode, a rotating spindle head, a workbench and a lifting device; and the tool electrode is a cuboid metal block. The preparation method aims at a cylindrical hollow cannula electrode made of stainless steel with a smooth surface. The preparation method has the advantages that the cannula electrode treated through the method has the random bionic microtexture with the textured surface, the original guiding function of the cannula electrode is not affected, cerebrospinal fluid can be stored, the effective friction area between the cannula electrode and a brain tissue is reduced, puncture friction force is reduced, and the deformation degree of the brain tissue in the puncture process can be reduced; and pit microstructures formed by surface texturing are randomly and mutually overlapped and communicated to form a capillary tube, a lubricant is more easily captured by utilizing the capillary tube effect, and puncture injury of the cannula electrode to the brain tissue is reduced.

Description

technical field [0001] The invention belongs to the technical field of deep brain stimulation puncture intervention, and in particular relates to a preparation method of a deep brain stimulation cannula electrode and a random bionic micro-texture of surface roughening. Background technique [0002] With the aggravation of the population aging problem and the increase of human life and work pressure, more and more patients have deep brain diseases, which lead to dysfunction of certain nerve nuclei in the deep brain, manifested as a series of behaviors, will, cognition, etc. Intellectual, emotional and other mental activity disorders seriously threaten human physical and mental health. [0003] Deep brain stimulation is an effective way to treat these conditions. During the implementation of the operation, the cannula electrode will puncture the brain tissue with a long path to realize the positioning of the needle tip of the stimulating electrode to the target point, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H9/00A61N1/05
CPCB23H9/008A61N1/0534
Inventor 李岩周耀张风雨张远方王志贤葛晓晖张文超李文卓
Owner YANTAI UNIV
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