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Implanted bioelectrode and medical assembly comprising same

A bioelectrode and implantable technology, applied in the direction of electrodes, electrotherapy, internal electrodes, etc., can solve the problems of uncertain electrode implantation methods, achieve the effects of suppressing eddy current effects, improving safety, and overcoming thermal problems

Active Publication Date: 2012-01-25
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The heating effect is related to the position and shape of the electrode in the MRI magnetic field. In some specific positions and shapes, the electrode can avoid resonance with the MRI magnetic field and avoid excessive heating. However, in practical applications, the implantation method of the electrode in the human body is uncertain, so the electrode itself needs to meet the safety requirements under resonance conditions

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  • Implanted bioelectrode and medical assembly comprising same
  • Implanted bioelectrode and medical assembly comprising same
  • Implanted bioelectrode and medical assembly comprising same

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] like figure 1 , Figure 3 ~ Figure 5 As shown, the implantable bioelectrode of the present invention includes a wire 2, and the two ends of the wire 2 are respectively connected with a contact 1 and a joint 3, wherein the contact 1 is composed of a nonmagnetic nanofiber or a film 7, and the nonmagnetic nanofiber Or the film is wound (preferably wound in multiple layers) on the sleeve 5, the sleeve 5 is used to support the contact 1 and provide protection and increase insulation for the wire 2, and the wire 2 passes through the contact 1 in the sleeve 5 and Contact 1 forms an electrical connection. Signals can be transmitted between contact 1 and wire 2. There ar...

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Abstract

The invention relates to the technical field of implanted medical appliances, and discloses an implanted bioelectrode. The bioelectrode comprises a lead wire (2), wherein two ends of the lead wire (2) are respectively connected with a contact (1) and a connector (3); and the contact (1) comprises a conductive non-magnetic nano-fiber with specific resistivity, or comprises a conductive film with specific central resistivity. The invention also discloses a medical assembly comprising the implanted bioelectrode. According to the implanted bioelectrode, the high-resistivity nano-fiber or film material is adopted to wind and manufacture the contact to effectively inhibit the eddy effect, so that the thermal problem in a nuclear magnetic resonance environment is solved, and the safety of the electrode in nuclear magnetic resonance imaging is improved.

Description

technical field [0001] The invention relates to the technical field of implantable medical devices, in particular to an implantable biological electrode and a medical component including the electrode. Background technique [0002] Magnetic resonance imaging (MRI) technology is more and more widely used in modern medical diagnosis due to its advantages of non-radiation, high resolution, soft tissue imaging and brain function development. But until now, patients with implanted medical devices such as neurostimulators or pacemakers have been unable to perform high-field MRIs, mainly because of the risk of radiofrequency (RF) heating. The U.S. FDA reported a case of a Parkinson's patient implanted with a deep brain stimulator undergoing an MRI examination leading to coma and permanent disability. This problem makes many patients subject to many restrictions when MRI examination is required. [0003] Studies have shown that heating occurs mainly at the tip of metal implants, s...

Claims

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Application Information

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IPC IPC(8): A61N1/05
CPCA61L2400/12B82Y5/00B82Y30/00A61N1/18A61N1/05A61N1/08A61N2001/086A61N1/086
Inventor 李路明姜长青郝红伟
Owner TSINGHUA UNIV
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