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That's a very good point actually. A divisor or control PT is needed to determine INR becuase the patient PT time by itself is not enough to calculate the INR value. Refractive index is an intrinsic property, so the volume shouldn't be an issue.

So the reservoir that holds the blood would be the consumable because it would be contaminated, which can be considered the test strips if you'd like. Regarding how to calculate INR and what divisor to use, we're still in the early design process, so we're not there yet. It would calculate INR...

We want to minimize any points of failure and reduce costs by not requiring chemical test strips that can expire. We're still working on the design and seeing if this can actually work.

No at all, the device would work similar to how coag-sense, where you put the blood sample in a reservoir strip. It's just the ours won't require a moving part like the wheel they have if that makes sense.

Thank you for the graph pellicle. Our goal is to design a device that is more efficient than the ones on the market by using refractive index to measure prothrombin time and INR. Theoretically with this prinicple, you don't need test strips that expire like coaguchek or any moving parts like the...

Thank you so much Protimenow for the feedback, I'll definitely take these concerns into consideration. We're just trying to see if we are capable of addressing the issues that people are facing with current devices on the market.

Thank you Chuck, that is much appreciated

Thank you nobog, I'll keep that scandal in mind

Yes, I know that a phlebotomist takes several vials of blood. My question was regarding the issue with the "Error 5" message you kept getting due to an insufficient blood sample with the CoaguChek. The device requires a particular blood sample (8 ul) for the testing, and a finger prick alone...

Yes that is what I meant, I apologize I'll definitely consider that for sure, thank you We're currently working on the project trying to see what improvements we can make to the ones on the market. If sample collection is a wide issue, I would love to talk to my team and see if we can find a...

Hi pellicle, Thank you for the prompt reply. I read in your blog that you had issues getting a large enough blood sample for the device to read and that you had to place a rubber tourniquet on your finger in order to do so. Is this still an issue you are still experiencing? I was maybe hoping...

Hello everyone, My name is Sammy Elashy, I’m a senior Biomedical Engineering student at the University of Texas at San Antonio. I along with 4 other colleagues are currently doing our senior design project where we design and engineer a medical device. We’re currently in the early stages of...