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Hip implant with the sensing liner and force feedback points, shown against a dark blue background
Technology

Designed to sense what the eye cannot see.

Explore the science and engineering behind ArtioSense's innovative microfluidic force-sensing technology.

THE SURFACE IS NOT FLAT

A complex joint.
A different sensing challenge.

Force sensing within a joint must accommodate curved, weight-bearing surfaces. A sensor needs to respond to applied forces without losing the form that makes it useful at the point of contact.

ArtioSense brings microfluidics and additive manufacturing together to investigate that challenge. The foundational research explores thin structures that conform to the geometry around them.

MICROFLUIDICS, REIMAGINED

From applied force to measurable change.

The published sensing approach combines microfluidic structures with capacitive sensing. Applied force changes the sensor response, which can be calibrated to provide quantitative information.

Aerosol-jet printing enables the fabrication of customised microfluidic geometries. Subsequent work describes sensor design optimisation and calibration within a model hip implant.

Read the underlying research
APPLIED FORCEFLEXIBLE LAYERCHANNELELECTRODESCAPACITANCE CHANGES WITH DEFORMATION
Simplified schematic of the microfluidic and capacitive approach described in the published research. Not to scale.
INTERACTIVE / SIX-POINT FEEDBACK

See how load is distributed.

Choose a loading pattern and adjust the applied load to explore how a six-point display can communicate force distribution around the joint interface.

SIX-POINT FORCE FEEDBACK
Z1Z2Z3Z4Z5Z6BALANCED55% APPLIED LOAD
Loading pattern

Load shared evenly around the ring.

Low Medium High
SIX-POINT FEEDBACK / AT THE JOINT

See how load is distributed.

The sensing liner and six-point display, brought together using imagery from the original ArtioSense film.

SIX-POINT FORCE FEEDBACK
Hip implant and sensing liner from the original ArtioSense film
AT THE JOINT INTERFACE
Loading pattern

Load shared evenly around the ring.

Low Medium High
INTERACTIVE / AT THE INTERFACE

See how load is distributed.

Select a loading pattern and adjust the applied load to see how six-point feedback relates to the sensing interface of a hip implant.

Hip replacement assembly: acetabular cup, liner and femoral head with the force-sensing interface highlightedForce-sensing interface
Explore force distribution

Loading pattern

Relatively even force distribution around the joint interface.

Even relative load Concentrated relative load
DESIGNED AROUND THE CHALLENGE

Small structures. Meaningful information.

Thin

Developed for use where space at the joint interface is limited.

Conformable

Microfluidic structures designed to accommodate curved surfaces.

Robust

Published work investigates sensing under demanding mechanical conditions.

Quantitative

Calibrated sensor responses provide force measurement information.

THE ORIGINAL DEMONSTRATION

See the science in context.

The ArtioSense technology film explores the sensing concept and its intended application.

ArtioSense force-sensing technology demonstration
ARTIOSENSE / THE TECHNOLOGY FILM
FROM IMPLANT TO FEEDBACK

The sensing layer, in context.

Footage from the original ArtioSense film shows where the sensing layer sits within the hip implant.

INTEGRATION & INTERPRETATION

Information at the point of assessment.

01

Measure

Sensitive microfluidic structures respond to applied force.

02

Interpret

Changes within the sensors can be translated into quantitative measurements.

03

Inform

Force measurements are intended to support surgical assessment and decision-making.

Integration with surgical trial components, calibration, interpretation and clinical evaluation remain important considerations on the path from laboratory research to an intended surgical aid.

SCIENCE. ENGINEERING. MEDICINE.

Precision with purpose.

Explore the intended role of force sensing in orthopaedic surgery.