Biosensor
AssigneePanasonic Corporation
InventorsEriko Yamanishi, Hiroyuki Tokunaga, Akihisa Higashihara
Life of this patent
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Abstract
A biosensor can supply a sample solution accurately and easily, and includes a capillary for collecting a sample solution and analyzes a specific substance in the sample solution, an air hole, and at least two supply ports, i.e., a sample supply port and an auxiliary sample supply port, so that supply of the sample solution can be performed from either of the supply ports. Even when the sample supply port is closed up with a fingertip or the like and supply of the sample solution is stopped, the sample solution can be quickly supplied from the other auxiliary sample supply port.
Claims18
A biosensor comprising:
- a first insulating substrate and a second insulating substrate bonded together;
- a sample supply port which opens at one end of the bonded insulating substrates, and to which a sample solution is applied;
- a capillary communicated with the sample supply port, and into which the applied sample solution is introduced;
- and
- an air hole which is positioned at an end of the capillary opposite the sample supply port and communicated with air inside the capillary,
- wherein said sample supply port and said capillary are formed by bonding the insulating substrates together,
- wherein an auxiliary sample supply port communicated with said capillary, through which the applied sample solution is introduced into the capillary, is formed in one of the first insulating substrate and the second insulating substrate and provided in the vicinity of said sample supply port,
- wherein said auxiliary sample supply port is a through-hole penetrating said one of the insulating substrates and is in fluid communication with outer air between the auxiliary sample supply port and the sample supply port, and
- wherein an entirety of the capillary between the auxiliary sample supply port and the air hole is covered by said one of the first insulating substrate and the second insulating substrate.
Dependencies are inferred from the claim text.