Impedance measuring device and method on basis of deep brain stimulator electrodes

A technology of impedance measurement and deep brain, which is applied in electrotherapy, artificial respiration, physical therapy, etc., and can solve the problems of not publicly detecting contact impedance values ​​and affecting disease treatment, etc.

Pending Publication Date: 2018-10-12
SHAANXI QINMING MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The position of the electrode and the quality of the contact effect will directly affect the stimulation effect of the discharge pulse on the nuclei, thereby affecting the treatment of the disease. In actual operation, it can be judged by detecting the contact impedance value between the electrode of the deep brain stimulator and the brain tissue The contact effect between the electrode of the dee

Method used

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  • Impedance measuring device and method on basis of deep brain stimulator electrodes
  • Impedance measuring device and method on basis of deep brain stimulator electrodes
  • Impedance measuring device and method on basis of deep brain stimulator electrodes

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Embodiment 1

[0033] refer to image 3 , the number of deep brain stimulator electrodes 3 is 2, and the present embodiment is used to measure the contact impedance value between two electrodes and brain tissue. Specifically, the impedance measurement method based on the deep brain stimulator electrodes of the present invention includes the following step:

[0034] The processing controller 1 controls the pulse issuing circuit 4 to issue the current pulse signal I through the two deep brain stimulator electrodes 3 1 , the processing controller 1 collects the voltage signal V between the two deep brain stimulator electrodes 3 through the analog-to-digital conversion circuit 5 and the signal amplification circuit 6 1 , then the contact impedance value Z between the two electrodes and the brain tissue 1 =V 1 / I 1 .

[0035] Or, the impedance measurement method based on the deep brain stimulator electrode of the present invention comprises the following steps:

[0036] The processing contr...

Embodiment 2

[0038] refer to Figure 4, the number of deep brain stimulator electrodes 3 is 3, and the present embodiment is used to measure the contact impedance value between the second deep brain stimulator electrode 3 and brain tissue, specifically, the present invention is based on deep brain stimulator electrodes The impedance measurement method includes the following steps:

[0039] The processing controller 1 controls the pulse sending circuit 4 to send out the current pulse signal I through the first deep brain stimulator electrode 3 and the second deep brain stimulator electrode 3 3 , that is, the first deep brain stimulator electrode 3 and the second deep brain stimulator electrode 3 are used as stimulating electrodes, and the processing controller 1 collects the second deep brain stimulator electrode 3 through the analog-to-digital conversion circuit 5 and the signal amplification circuit 6 Voltage signal V between the third deep brain stimulator electrode 3 3 , that is, the ...

Embodiment 3

[0043] refer to Figure 5 , the present embodiment is used for measuring the impedance value between brain tissue, and the number of deep brain stimulator electrodes 3 is 4, and the impedance measuring method based on deep brain stimulator electrodes of the present invention comprises the following steps:

[0044] The processing controller 1 controls the pulse issuing circuit 4 to issue a voltage pulse signal V through the first deep brain stimulator electrode 3 and the fourth deep brain stimulator electrode 3 5 , the processing controller 1 collects the current signal I between the second deep brain stimulator electrode 3 and the third deep brain stimulator electrode 3 through the analog-to-digital conversion circuit 5 and the signal amplification circuit 6 5 , then the impedance value Z between brain tissues 3 =V 5 / I 5 ;

[0045] Alternatively, the impedance measurement method based on the deep brain stimulator electrodes of the present invention includes the following ...

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Abstract

The invention discloses an impedance measuring device and method on the basis of deep brain stimulator electrodes. The device comprises a pulse emitting circuit, a signal amplifying circuit, an analog-to-digital conversion circuit, a processing controller, an electrode terminal selection module and the deep brain stimulator electrodes, wherein an output end of the processing controller is connected to a control end of the pulse emitting circuit and a control end of the electrode terminal selection module, an output end of the pulse emitting circuit is connected to the deep brain stimulator electrodes through the electrode terminal selection module, an input end of the signal amplifying circuit is connected to the deep brain stimulator electrodes through the electrode terminal selection module, and an output end of the signal amplifying circuit is connected to the processing controller through the analog-to-digital conversion circuit. The device and method can measure a contact impedance value between the deep brain stimulator electrodes and brain tissue and an impedance value among different pieces of the brain tissue.

Description

technical field [0001] The invention belongs to the field of implantable medical devices, and relates to an impedance measurement device and method based on electrodes of a deep brain stimulator. Background technique [0002] Deep brain stimulator (Deep Brain Stimulation, DBS) is to stimulate the brain nucleus by sending out electrical pulse signals to regulate abnormal neural circuits. Due to its minimally invasive nature, DBS has become a routine surgical method for the treatment of movement disorders such as essential tremor, Parkinson's disease, and dystonia. [0003] During DBS surgery, the placement position and contact effect of stimulating electrodes will have a significant impact on the therapeutic effect of DBS. The position of the electrode and the quality of the contact effect will directly affect the stimulation effect of the discharge pulse on the nuclei, thereby affecting the treatment of the disease. In actual operation, it can be judged by detecting the con...

Claims

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Application Information

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IPC IPC(8): A61N1/36A61N1/08
CPCA61N1/08A61N1/3614A61N2001/083
Inventor 李衡翟建波张喜娜闫旭霞
Owner SHAANXI QINMING MEDICAL CO LTD
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