Publicação
Design and fabrication of printed human skin model equivalent circuit: a tool for testing biomedical electrodes without human trials
| Resumo: | Within the efforts of developing a new generation of biomedical electrodes with embedded switching logics, the present work focuses on developing safe and simple procedures for testing these novel systems. An all-printed testbed for automated validation of multi-pad systems is presented based on a Human model equivalent circuit (HMEC), a device that, when connected to the electrical stimulation system, mirrors the electrical behavior of electrodes and their specific interface material as if they are placed on a human subject. In the case of transcutaneous electrical stimulation, after a simulation of the different components of the system to optimize printed component characteristics, the fabricated testbed is composed of five flexible screen-printed layers of different materials (conductors and dielectrics) on flexible PET substrate. Electronic components have been developed and integrated, including capacitors and resistances with the defined HMEC characteristic values, matching the average experimental data acquired from human subjects. Thus, an all printed flexible HMEC is provided allowing the suitable evaluation and optimization of skin stimulation devices, reducing the need for tests on human subjects during developing technological stages. |
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| Autores principais: | Peřinka, Nikola |
| Outros Autores: | Štrbac, Matija; Kostić, Milos; Malešević, Jovana; Castro, Nélson; Correia, V.; Lanceros-Méndez, S. |
| Assunto: | SKIN model Testbed Electrode Printing Equivalent circuit |
| Ano: | 2022 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | Within the efforts of developing a new generation of biomedical electrodes with embedded switching logics, the present work focuses on developing safe and simple procedures for testing these novel systems. An all-printed testbed for automated validation of multi-pad systems is presented based on a Human model equivalent circuit (HMEC), a device that, when connected to the electrical stimulation system, mirrors the electrical behavior of electrodes and their specific interface material as if they are placed on a human subject. In the case of transcutaneous electrical stimulation, after a simulation of the different components of the system to optimize printed component characteristics, the fabricated testbed is composed of five flexible screen-printed layers of different materials (conductors and dielectrics) on flexible PET substrate. Electronic components have been developed and integrated, including capacitors and resistances with the defined HMEC characteristic values, matching the average experimental data acquired from human subjects. Thus, an all printed flexible HMEC is provided allowing the suitable evaluation and optimization of skin stimulation devices, reducing the need for tests on human subjects during developing technological stages. |
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