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Implantable biological electrode and manufacturing method thereof

A bio-electrode and electrode technology, applied in electrotherapy, medical science, surgery, etc., can solve problems such as low reliability performance and failure of electrical stimulation therapy, and achieve the effects of improving reliability, reducing mechanical damage, and reducing electrode resistance.

Active Publication Date: 2011-05-25
BEIJING PINS MEDICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The structural limitations of the existing electrodes lie in their high requirements on the mechanical properties of the connecting wires and their connection strength with the stimulation contacts and connecting contacts, and low reliability. Once there is a problem with the wires or connection points, the pathway cannot continue to work. , replacing the electrodes means that the patient needs to undergo surgery again, and if the electrodes have been implanted for a long time, the patient will face great risks
Clinically, there have been cases where electrical stimulation therapy failed due to broken electrodes

Method used

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  • Implantable biological electrode and manufacturing method thereof
  • Implantable biological electrode and manufacturing method thereof
  • Implantable biological electrode and manufacturing method thereof

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Embodiment Construction

[0031] figure 1 b. figure 2 , image 3 , Figure 4 , Figure 5 An embodiment of the present invention is shown, wherein there are four stimulation contacts 3, the metal wire is an 8-wire helical wire, the sleeve has a groove, and there is a head electrode.

[0032] Such as figure 1 As shown in b, the main body of the electrode adopts a slender flexible insulating sleeve, and at least one metal ring is placed on one end of the sleeve as a stimulating contact. Stranded metal wires are connected to the same stimulating contact and to the same connection point at the other end of the cannula.

[0033] The flexible insulating casing of the electrode body is made of biocompatible organic polymer materials, such as silicone rubber and polyurethane materials. The outer wall of one end of the flexible insulating sleeve has an annular groove for receiving the stimulation contact, and the groove can be made by machining or thermoplastic forming.

[0034] The metal of the stimulat...

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PUM

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Abstract

The invention discloses an implantable biological electrode and a manufacturing method thereof. By arranging a backup conducting wire, the reliability of an electrode is improved and the conducting resistance of the electrode is reduced. Each electric path of the electrode is provided with at least one backup channel to ensure that the electrical communication of the path still can be maintained under the condition of the failure of one channel, so that the reliability of the connection of the electrode is improved; moreover, the parallel connection relationship is formed by two or more channels, so that the resistance of the electrode can be reduced.

Description

technical field [0001] The invention relates to an implanted medical device, in particular to the design and manufacture of an implanted biological electrode. Background technique [0002] Nerve electrical stimulation technology is more and more widely used. By electrically stimulating brain tissue, spinal cord or peripheral nerves, it can treat Parkinson's disease, dystonia, depression, epilepsy and other neuropsychiatric diseases, as well as pain and other diseases. Usually, the surgeon implants the bioelectrode into the patient's body, the electrode contacts are in a specific position in the body, and then the pulse generator conducts a specific current into the body through the electrode to achieve the therapeutic effect. [0003] Nerve electrical stimulation electrodes currently used in clinical applications usually have such figure 1 The structure shown in a, the main body is a slender tube with an outer diameter of about 1.3mm and an inner diameter of about 0.9mm, us...

Claims

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Application Information

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IPC IPC(8): A61N1/372A61L31/06A61L31/02
Inventor 李路明姜长青郝红伟耿亚群
Owner BEIJING PINS MEDICAL
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