HALO™ Technology

The Patented Bladeless Microneedle Array

Traditional blood drawing technology using standard needles and lancets brings pain and inconvenience to many patients and poses a significant deterrent to testing in some patient populations.

The bladeless microneedle array of our HALO™ technology overcomes these barriers. With microneedles thinner than an eyelash, HALO™ technology enables our TAP® devices to deliver a virtually painless blood collection experience compared to fingerstick, venipuncture, and competitive products.

See how our TAP® devices leverage the HALO™ Technology Learn More

How HALO™ Takes The Pain Out of Blood Collection

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Touch Activated, Spring Released

After cleaning the skin with an alcohol wipe, the device is placed against the upper arm. Pressing the plunger activates the spring, which releases the microneedles and expels air from the sealed device body simultaneously.

Virtually Painless, Shallow Pierce

The needles only pierce approximately 1mm deep, remaining above the dermis where nerve endings are located. This eliminates the major source of pain during blood draws.

Rapid Microneedle Retraction

Unlike traditional blood draws, the microneedles retract after about 3 milliseconds, drawn back by the spring.

Leveraging Physics for a Gentle Blood Draw

When the plunger is released, a gentle vacuum forms to facilitate the blood draw from out of the capillaries and through the skin.

Our Results Speak for Themselves

Up to 900µL of Whole Capillary Blood

Our HALO™ Technology enables patients to collect up to 900µL of blood, accommodating a broad range of standard blood tests¹

Up to 99% Collection Success Rate

Our devices are end-user preferred, virtually painless, and yield up to a 99% collection success rate²

200% Increase in Patient Retention/Completion Rates

Significantly higher completion rates in clinical trials when compared to fingerstick³

98% Would Repeat Self-Collection

When asked if they would repeat their self-collection experience with TAP® Micro, 98% of patient respondents responded “yes”⁴

High Venous Concordance

For broad-based tests, such as cholesterol, capillary blood samples collected in both assisted and self-collection settings have high concordance with venous blood⁵

Latest Research and Highlights

Discover the latest studies and reports published on our devices and solutions

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November 2, 2023
Maximizing Microsampling: Measurement of Comprehensive Metabolic and Lipid Panels Using a Novel Capillary Blood Collection Device
THE JOURNAL OF APPLIED LABORATORY MEDICINE

Correlation of capillary serum was demonstrated for professionally collected TAP II samples, self-collected TAP II samples, and professionally collected fingerstick samples.
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January 23, 2023
Quantification of Severe Acute Respiratory Syndrome Coronavirus 2 Binding Antibody Levels To Assess Infection and Vaccine-Induced Immunity Using WHO Standards
ASM Journals, Microbiology Spectrum

TAP sample collection in decentralized drive-through settings enabled a comprehensive evaluation of Sars-CoV-2 antibody level and decay using WHO standards in a representative population of LA county during the pandemic.
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October 11, 2022
Relationship between Anti-Spike Antibodies and Risk of SARS-CoV-2 Infection in Infants Born to COVID-19 Vaccinated Mothers
MDPI, Vaccines

TAP devices used to collect blood samples from 2-month-old and 6-month-old infants in Sars-CoV-2 infection risk study.
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