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Interface material capable of being used for virtual-reality interaction and preparation method thereof

An interface material, a realistic technology, applied in the field of human-computer interaction, can solve the problems of invasive electrode biological damage, commercial electrodes cannot be reused, etc.

Pending Publication Date: 2022-04-08
上海未乐科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an interface material that can be used for virtual-reality interaction and its preparation method, so as to overcome the defects that existing commercial electrodes cannot be reused and invasive electrodes can cause harm to organisms

Method used

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  • Interface material capable of being used for virtual-reality interaction and preparation method thereof
  • Interface material capable of being used for virtual-reality interaction and preparation method thereof
  • Interface material capable of being used for virtual-reality interaction and preparation method thereof

Examples

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Embodiment 1

[0033] (1) At room temperature, weigh 2g of acrylamide powder and place it in a 100mL beaker, add 10mL of deionized water, then add 0.8g of sodium chloride, 0.1g of tannic acid, 0.005g of methylenebisacrylamide, 0.05g of Photoinitiator I2959, magnetically stirred for 1h to obtain a transparent and clear pre-polymerization solution;

[0034] (2) Place the prepolymerized solution obtained in step (1) under an ultraviolet lamp with a wavelength of 365nm and a power of 45W for 20 minutes to obtain a pregel;

[0035] (3) Soak the pregel obtained in step (2) in ethylene glycol for 1 hour to obtain an interface material that can be used for virtual-reality interaction.

[0036] As shown in the content of the invention in the patent, the application fields of interface materials that can be used for virtual-reality interaction (detection of EEG signals, ECG signals, and EMG signals) are as follows: figure 1 As shown, its preparation process is as follows figure 2 shown. Such as ...

Embodiment 2

[0038] (1) At room temperature, weigh 2g of acrylamide powder and place it in a 100mL beaker, add 10mL of deionized water, then add 0.8g of sodium chloride, 0.05g of tannic acid, 0.005g of methylenebisacrylamide, 0.05g of Photoinitiator I2959, magnetically stirred for 1h to obtain a transparent and clear pre-polymerization solution;

[0039] (2) Place the prepolymerized solution obtained in step (1) under an ultraviolet lamp with a wavelength of 365nm and a power of 40W for 30min to obtain a pregel;

[0040] (3) Soak the pregel obtained in step (2) in ethylene glycol for 1 hour to obtain a sterilizable and highly sensitive interface material that can be used for virtual-reality interaction.

[0041] The appearance and material properties of the interface material that can be used for virtual-reality interaction obtained in Example 2 are similar to those in Example 1. But compared with Example 1, due to the decrease in the amount of tannin used, the viscosity of the interface ...

Embodiment 3

[0043] (1) At room temperature, weigh 2g of acrylic acid liquid into a 100mL beaker, add 10mL of deionized water, then add 0.8g of sodium chloride, 0.1g of tannic acid, 0.005g of methylene bisacrylamide, 0.05g of light Initiator I2959, magnetically stirred for 1h to obtain a transparent and clear pre-polymerization solution;

[0044] (2) Place the prepolymerized solution obtained in step (1) under an ultraviolet lamp with a wavelength of 365nm and a power of 45W for 20 minutes to obtain a pregel;

[0045] (3) Soak the pregel obtained in step (2) in ethylene glycol for 1 hour to obtain a sterilizable and highly sensitive interface material that can be used for virtual-reality interaction.

[0046] The appearance and material properties of the interface material used in virtual-reality interaction obtained in Example 3 are similar to those in Example 1. But compared with Example 1, due to the use of monomers changed from acrylamide to acrylic acid, the mechanical properties of ...

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Abstract

The invention relates to an interface material capable of being used for virtual-reality interaction and a preparation method of the interface material. The interface material is composed of ion-conductive self-adhesive hydrogel and an organic solvent. The preparation method comprises the following steps: (1) preparing a pre-polymerization solution; (2) preparing bioelectric sensing pregel by adopting an ultraviolet curing method; and (3) preparing an interface material capable of being used for virtual-reality interaction by a solvent replacement method. The preparation method is simple, the cost is low, large-scale production can be achieved, and the obtained gel interface material has the excellent performance of being high in stability, high in sensitivity, non-invasive, capable of being repeatedly used and the like, can be used for detecting bioelectricity signals such as myoelectricity signals and electroencephalogram signals and has important application value in the field of virtual-reality interaction.

Description

technical field [0001] The invention belongs to the field of human-computer interaction, in particular to a bioelectric signal sensing interface material that can be used for virtual-reality interaction. Background technique [0002] Metaverse can create a virtual world parallel to the real world for human beings, and the realization of virtual-reality interaction requires the development of corresponding interface materials. As the basis of biological activities, medical diagnosis and treatment, and neuroscience, bioelectrical signals are the basis for in-depth understanding of the laws and pathological mechanisms of biological activities. In the process of in-depth study of bioelectrical signals, the detection method is very important. [0003] However, current bioelectrical signal detection methods face many challenges. As a common high-precision detection method, invasive electrodes are widely used. For example, Chinese patent CN202011078894.8 prepares an invasive elec...

Claims

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Application Information

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IPC IPC(8): A61B5/263A61B5/266A61B5/268
CPCC08J3/075C08J2333/26C08K5/1545G06F3/015G06F3/011G06F3/017A61K49/00
Inventor 郭洋刘志福
Owner 上海未乐科技有限公司
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