Preparation method of dry ECG (electrocardiogram) electrode

An electrocardiogram electrode and dry technology, which is applied in the field of preparation of dry electrocardiogram electrodes, can solve the problems of inconvenient use of electrocardiogram electrodes, unstable electrical signals, and uncomfortable wearing, so as to maintain biocompatibility and be convenient to use , the effect of good conductivity

Inactive Publication Date: 2016-02-03
SHENZHEN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of a dry electrocardiographic electrode, which solves the problems of inconvenient use, uncomfortable wearing, unstable electrical signal and complicated preparation of the electrocardiographic electrode in the prior art.

Method used

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Effect test

preparation example Construction

[0024] The invention provides a method for preparing a dry ECG electrode. The ECG electrode prepared by the method has good electrical conductivity, flexibility and biocompatibility, and can be directly connected to the existing ECG signal detection system through the device metal snap lead interface , easy to use.

[0025] The preparation method specifically includes the following steps.

[0026] S1. Weigh a certain amount of graphene and add it to a polydimethylsiloxane solution with a purity of 90%-99%. After stirring and mixing, use a three-roll mill to fully grind for 4 hours-8 hours to make the graphene uniform Dispersed in polydimethylsiloxane to obtain a graphene / polydimethylsiloxane mixture. The purity of the polydimethylsiloxane is preferably 99%, and may also be 90% or 95% in other embodiments. The consumption of the graphene that weighs accounts for the 1wt%-10wt% (i.e. mass ratio) of the total amount of the mixture of graphene / polydimethylsiloxane; Preferably, t...

Embodiment 1

[0034] Quantitative graphene was weighed, added to a polydimethylsiloxane (PDMS) solution with a purity of 99%, stirred and mixed, and fully Grind for 5 hours so that graphene is evenly dispersed in PDMS to make a graphene / PDMS mixture containing 4.5wt% graphene; place a propylene disk with a diameter of 25 mm and a thickness of 2 cm in a petri dish, and place in a concentric circle Place the metal snap button of the common lead wire of the ECG measurement system on the center of the circle; pour PDMS with a purity of 99% into a petri dish, put the petri dish on a heating table, bake at 100°C for 1 hour, and then bake at 120°C 1h, ensure that the PDMS is completely cured, and make the electrode sheet main mold; separate the electrode sheet main mold from the culture dish, pull out the acrylic disc in the electrode main mold, and leave a place for the acrylic disc in the electrode main mold. Reserve a space, then fix the main mold of the electrode sheet on the disc of the spin ...

Embodiment 2

[0036] Weigh a certain amount of graphene, add it to a polydimethylsiloxane (PDMS) solution with a purity of 90%, stir and mix it, and use a ball mill to fully grind it for 4 hours, so that the graphene is evenly dispersed in PDMS, and the prepared Graphene / PDMS mixture containing Graphene 1wt%; Place a diameter of 50mm in a beaker and a 5cm thick acrylic disc, and place a metal snap of the lead wire of the ECG measurement system at the center of the concentric circle; Pour PDMS with a purity of 90% into a beaker, put the beaker on a heating platform, bake at 110°C for 1.5h, and then bake at 130°C for 1.5h to ensure that the PDMS is completely cured, and make the main mold of the electrode sheet; Separate the main mold from the beaker, pull out the acrylic disc in the main mold of the electrode, leave a reserved space at the position of the acrylic disc of the main mold of the electrode, and then fix the main mold of the electrode on the disc of the spin coater (rotation speed...

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Abstract

The invention relates to a preparation method of a dry ECG (electrocardiogram) electrode. The preparation method has the beneficial effects that the dry ECG electrode prepared by the method has good electrical conductivity, flexibility and biocompatibility, can be directly connected with existing ECG signal detection systems by arranging a metal snap fastener lead port, is convenient to use and can avoid the problems of long-time skin irritation and signal decrease caused by traditional wet ECG electrodes with conductive adhesives; with increasing health concerns and continuous observation requirements of people in recent years, the dry ECG electrode which has good electrical conductivity, can maintain the biocompatibility of human body surfaces for a long time and has certain flexibility has a strong market potential.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, relates to a preparation method of a dry electrocardiogram electrode. Background technique [0002] According to the "China Cardiovascular Disease Report 2013", there are currently about 290 million patients with cardiovascular disease in the country, and about 3.5 million patients die of cardiovascular disease every year, accounting for 41% of the total cause of death. Cardiovascular disease has become a threat to human health. number one killer. In modern medicine, the electrocardiogram is an important basis for diagnosing cardiovascular diseases. At present, medicine often obtains weak ECG signals on the human body surface through ECG electrodes, and obtains ECG after processing such as amplification and filtering. As a key device for body surface ECG signal sensing, ECG electrodes usually have good electrical conductivity and biocompatibility. At present, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0408
Inventor 廖江海纪震储颖曾启明周家锐
Owner SHENZHEN UNIV
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