| 摘要 |
A fluid dispensing device includes a container made from a flexible material defining an interior fluid storage region, a flexible metering housing having a metering chamber in fluid communication with the fluid storage region, the flexible metering housing having a button heat sealed to a base plate, a unidirectional intake valve disposed between the container and the flexible metering housing and a unidirectional output valve in fluid communication with the flexible metering housing. The base plate has an extension with a recessed notch, a first tapered portion, and a second tapered portion opposite the first tapered portion with respect to the recessed notch, and the button has an extension and a notch corresponding to the extension and the recessed notch of the base plate.
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