Multi-channel infusion microneedle

A fluid delivery device for delivering at least two fluids, the device comprising:

• a first fluid pathway having a first upstream large volume and a first downstream small volume connected in fluid communication with the first upstream large volume, wherein a diameter of the pathway decreases from the first upstream large volume to the first downstream small volume,
• the first fluid pathway further comprising a first exit having an exit diameter smaller than a storage diameter of the first upstream large volume;
• a second fluid pathway having a second upstream large volume and a downstream second small volume connected in fluid communication with the second upstream large volume, wherein a diameter of the pathway decreases from the second upstream large volume to the downstream small volume,
• the second fluid pathway further comprising a second exit having an exit diameter smaller than a storage diameter of the first upstream large volume;
• and
• an insertion member containing the first and second exits in a closely proximate relationship and configured to insert the first and second exits through tissue to a distribution location without prior mixing of the fluids.