Our Technology


More than 200 Million patients undergo needle-based procedures every year. 1 in 10 sustain nerve damage while 2 in 10 are re-called to hospitals for a repeat procedure as a direct result of needle misplacement due to poor visibility and deflection of needle tip.

Additional clinical time costs healthcare providers over $1,200 per hour which is not normally reimbursed if it results from errors or re-admissions. Further, damages due to needle placement errors costs healthcare providers over $1 Billion annually.

Pre-clinical prototype.

The Technology

Active Needle’s technology (Patent No. WO2014140556 A1, 2013) is a hand-held piezoelectric that interfaces with single-use medical needles to induce minute longitudinal ultrasonic vibration.

The design of the device has been carried out considering the typical requirements of clinicians, in this case the clinical collaborators, who actively participated in the design, fabrication and testing stages of the device.

Driven by a re-usable dedicated driving unit, the device vibrates compatible needles at ultrasonic frequencies with a longitudinal / length-wise vibration leading to enhanced visibility and reduced deflection of standard needles under laboratory conditions.

Enhanced Needle Visibility

Active Needle Technology delineates the whole length of the needle, including the tip, in colour under the standard 2D colour Doppler mode of ultrasound imaging. It even works at challenging angles and deep tissue locations.

The Doppler technique, routinely used for the blood flow measurements, generates a colour-coded map of needle velocity superimposed on the grey-scale images of tissue anatomy.

ActiveNeedle makes standard needle visible in colour under Doppler ultrasound.

Active Needle Technology reduces penetration force and thus tip deflection (a) inactive and (b) Active Needle

Reduced Needle Deflection

With its operation similar to micro-pneumatic drill, Active Needle’s Technology, demonstrated under laboratory conditions, reduces needle penetration forces, especially at the first puncture phase, consequently reducing the tip deflection.

The longitudinal / length-wise vibration allows better penetration through tissue interfaces, which may mean reduced pain and tissue trauma.


Increased confidence of needle tip detection leading to increased uptake of ultrasound guidance.

Reduced complications and discomfort leading to better patient outcome.

Reduced re-admission rates and procedure time leading to an estimated cost savings of over $100,000/year per operation room (Marhofer, P. 2010).

ANT’s technology does not emit any ionizing radiations or any type of radiation that is linked with cancer.

Get in touch to learn more about Active Needle ...

Contact Us