Frequently Asked Questions

The Tasso Button sticks to the skin with a light adhesive. When the button is pressed, a vacuum forms and a lancet pricks the surface of the skin. The vacuum draws blood out of the capillaries and into a compatible container attached to the bottom of the Tasso Button.
Some people refer to Tasso Devices as a needle-free system since it does not use a hollow venipuncture needle to enter a vein.
Tasso kits are available for purchase by healthcare providers, laboratories, clinical research organizations, and pharmaceutical companies. To receive a customized quote, please contact us.

Each device is used one time to collect a sample and is then discarded.
Participants in clinical studies have reported lower levels of pain with the Tasso device compared to collecting blood with a finger stick or standard venipuncture procedure.
Tasso’s Instructions for Use and packaging are usable by people without any medical training or knowledge. The product has undergone extensive usability testing with naive participants who received no specific training.
Yes. Please visit our online product use videos.
Tasso devices are currently being studied in pediatric research use cases.
Tasso devices should always be used in accordance with the guidelines established by the customer’s clinical or medical team. The Tasso-M20 should not be used on infant heels.

Dried blood samples are not considered biohazards and can be shipped without special packaging requirements.
Tasso liquid sample packaging has been designed to meet Exempt Human Specimen requirements. Customers can add UN3373 labelling and meet the UN3373 requirements.
Shipping over some international borders may require specific authorization.
In the United States the sampling kits can be shipped via standard first class United States Postal Service (USPS) service, or courier service.
If outbound shipping is desired the pre-addressed kit with a return label can be placed in a standard mail bubble shipper envelope for outbound delivery.

The Tasso+ is a 510(k)-cleared Class II Lancet, is CE Marked, MHRA registered, Licensed with Health Canada, and available in Switzerland.
The Tasso+ collects liquid samples of whole capillary blood.
Blood volume is dependent on the type of tube used but averages 200-600μL. Please refer to the tube specifications.
Refer to the Tasso+ kit brochure for the most up to date kit configurations available. Sample processing instructions will mirror tube manufacturer's labeling.

The Tasso-M20 can be used for non-diagnostic purposes, such as pharmacokinetic (PK) monitoring in pharmaceutical clinical trials.
The Tasso-M20 is CE Marked and available for Research Use Only in the United States.
The Tasso-M20 collects dried samples of whole capillary blood.
The Tasso-M20 collects 4 samples of 17.5μL each with a coefficient of variation (CV) of <5%.
Tasso has preferred laboratories ready to analyze samples immediately, or can help a customer’s preferred laboratory establish processes to analyze the samples.
The Tasso-M20 is designed to collect, store and transport samples for analysis related to pharmacokinetic monitoring (PK) or therapeutic drug level monitoring (TDM). Tasso-M20’s dried blood samples can collect and stabilize samples for drugs that are small molecules, proteins, antibodies or contain nucleic acids.