| 摘要 |
The present invention relates to an electrically openable microfluidic valve, which comprises: at least one plane support ( 12 ); at least one afferent microchannel ( 14 ); at least one efferent microchannel ( 16 ); said microchannels being provided in the support, so that at least one of their ends ( 141 ) and ( 161 ) opens onto the internal face ( 121 ) of said support ( 12 ), near one another; at least one deposit ( 18 ) of a heat-sensitive material laid out on the internal face ( 121 ) of the support ( 12 ); and at least one heating means ( 20 ); so that the deposit ( 18 ) of heat-sensitive material at least partly closes off the space separating the ends ( 141 ) and ( 161 ) of the microchannels ( 14 ) and ( 16 ), thus preventing the latter from communicating with one another; the increase in temperature by the heating means ( 20 ) resulting in a modification of the structure of the heat-sensitive material, thus at least partially clearing the ends of the microchannels and the space between the latter, so as to allow communication between said microchannels and to restore flow of the fluid.
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