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Welcome to Coag-Sense®, the most precise portable PT/INR system availableThe Coag-Sense® Prothrombin Time (PT)/INR Monitoring System is the first system with direct clot detection technology. Thanks to its micro-mechanical detection process it offers superb accuracy and precision, it is also not susceptible to changes in Hemoglobin & Hematocrit levels and it has the ability to run whole blood or plasma sample. This simplistic approach to PT/INR testing has delivered a stellar safety history since its introduction.

Coag-sense-PT/INR-monitoring System


The most precise POC PT/INR system ever.
When clinicians and researchers want the most accurate means of determining prothrombin time, they turn to either the World Health Organization (WHO) mechanical tilt-tube technique or the Fibrometer. Both these methods use a mechanical approach to directly detect clot formation. The Coag-Sense® PT/INR Monitoring System represents a breakthrough in point-of-care prothrombin time monitoring technology by miniaturizing and simplifying a direct mechanical means of detecting clot formation.

Image-coag-sense-pt/inr-mechanical wheelSuper-accurate direct mechanical detection.

By directly detecting the clot, the Coag-Sense® system avoids the challenges that plague other systems that use secondary means of clot detection like monitoring changes in impedance. For example, the concentration of red blood cells or other substances in blood sample can affect results in the measurement process of those products. The Coag-Sense® system simply lifts the fibrin clot from the reaction well which interrupts a simple light beam. The PT time is the actual time from when the blood sample is applied to when the clot is formed. This produces results similar to the gold standard WHO tilt-tube method.

Learn more about The Coag-Sense® system >

Coag-sense-rapid point-of-care testing for patients taking warfarin





There is no substitute for direct clot detection.
The Coag-Sense® meter directly measures clot formation, so the time required to perform a test is the actual prothrombin time in seconds. By not using look-up tables or curve fitting algorithms, the Coag-Sense meter offers accurate results in less than a minute.

A more direct approach to INR Testing.
Measures actual time required for clotting.
The only portable monitoring system that directly detects clotting endpoint – a system that emulates the WHO reference method allows greater confidence in results.
The patented technology of direct clot detection delivers accurate and precise (CV 2.5%) results even in the high INR range (>4.0INR). The reportable range is 0.8 – 8.0 INR.
True functional controls included
The purpose of quality control testing for a prothrombin time test system is to verify the integrity of both device and reagent performance. Coag-Sense® is the only portable system to offer control strips which contain the same thromboplastin used in the patient test strip along with plasma of known INR. Two sets of high and low controls are included free with each box of patient test strips.

Simple, accurate sample collection
Small sample size
Just one drop (10µl) of blood
Sample transfer tubes (included)
Allows steady transfer of sample to test strips
Reduces strip waste by insuring correct volume delivered
Supports proper blood borne pathogen control efforts

More frequent testing benefits patients
Recomendations for improved testing
2008 Joint Commission safetygoals call for reduced
likelihood of patient harm due to anti-coagulation therapy.

Patient Self-testing

Choose peace of mind
If you are taking oral anticoagulants such as Coumadin® (warfarin), PT/INR Self-Testing represents a truly convenient testing option. Testing can easily be performed once a week in the comfort of your own home.

Learn more about testing your PT/INR at home >

Coag-Sense Self Test

Studies have shown that patients performing home PT/INR testing spend more time in therapeutic range because they are able to monitor their trends.
After each test, patients notify their physician of the results and the physician will determine if any treatment adjustments are required.
The goal of self-monitoring PT/INR levels is to improve control and reduce the potential for adverse events.

How to use the Coag-Sense® PT/INR

Step 1Put a test strip in the Coag-Sense® PT/INR meter

Step 2Lance your finger and collect a bead of blood with the transfer tube

Coag-sense- PT/INR-monitoring system-apply sample

Step 3Dispense sample onto test strip