Manufacturing method of flexible spiral electrode and nerve bundle detection and treatment device
A technology of a spiral electrode and a manufacturing method, applied in the field of medical devices, can solve the problems of stimulating non-target tissue, easy debonding of metal electrodes, side effects, etc., and achieve the effects of long service life, high matching degree and high stability
Active Publication Date: 2020-09-04
TSINGHUA UNIV
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Problems solved by technology
[0003] However, in related technologies, the metal electrodes in the spiral structure electrode are easy to debond, which is easy to cause mechanical damage to nerves and surrounding tissues.
At the same time, the metal electrode after debonding produces leakage current, which stimulates non-target tissues and causes great side effects, such as nausea, vomiting, headache, etc.
Moreover, the matching between the spiral structure electrode and the nerve bundle is poor. During the nerve deformation process, the spiral structure electrode still has a large binding and compression effect on the nerve, causing unnecessary side effects and inconvenient for doctors to operate.
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[0058] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0059] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.
[0060]In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, component...
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The disclosure relates to a method of manufacturing a flexible spiral electrode and a nerve tract detection and treatment device. The method comprises: a substrate is heated to be at a transformationtemperature and the substrate winds around a first forming rod spirally to form a to-be-formed substrate; the temperature of the to-be-formed substrate is kept to be larger than or equal to a first plastic deformation within first time and thus a spiral substrate is formed; the spiral substrate is heated to be at a transformation temperature and the substrate is flattened to obtain a flattened substrate; a metal electrode is transferred to the flattened substrate; a lead is connected to a lead connection end of the metal electrode, so that an electrical stimulation signal is sent to the metalelectrode through the lead and / or an electrical signal of a nerve tract in contact with the metal electrode is obtained; heating is carried out to reach a transformation temperature and thus the shapeof the flattened substrate is transformed into a spiral shape, so that a flexible spiral electrode is obtained. The manufactured flexible spiral electrode has high extensibility and the contact degree and the matching degree with the nerve tract are high; and the operation is carried out conveniently. Moreover, the service life is long; the stability is high; and the side effects are low.
Description
technical field [0001] The disclosure relates to the technical field of medical devices, in particular to a method for manufacturing a flexible spiral electrode and a nerve bundle detection and treatment device. Background technique [0002] Electrical stimulation of peripheral nerve bundles, as an important branch of neuromodulation, plays an important role in the treatment of some drug-refractory diseases such as epilepsy, hypertension, heart failure and other diseases. In addition, the monitoring and stimulation of electrical signals of peripheral nerve bundles is also crucial in the neuroprosthesis developed in recent years for the treatment of paralyzed patients. The nerve electrodes used for electrical stimulation and electrical signal acquisition of peripheral nerve bundles mainly include Cuff electrodes and spiral structure electrodes. Among them, the helical electrode has been proven to reduce nerve compression or friction mechanical damage, so it has gradually bec...
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IPC IPC(8): A61N1/04
CPCA61N1/0456A61N1/0472
Inventor 冯雪张迎超付际曹宇王峰乐
Owner TSINGHUA UNIV