Seventh Sense

Developers pointed to some success, but they also noted that more at-home tests need to demonstrate higher levels of performance and affordability.

The firm said that after its device is placed on the upper arm, blood collection usually takes between two and three minutes following the press of a button.

Seventh Sense Biosystems markets a one-step, push-button device called Tap that uses a microneedle array to collect capillary blood from the arm.