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T-stat 2.0 for Reconstructive Free Flap Monitoring 

T-Stat is the first device to be labeled as “sensitive to Ischemia” and has been proven in multiple trials as an easy-to-use and reliable tool for assessing the adequacy of oxygen delivery to tissue. 

The T-Stat VLS Tissue Oximeter provides a continuous, non-invasive and localized measurement, sensitive to regional and global ischemia. T-Stat reports a capillary-weighted oxygen saturation which is closely related to a local venous saturation measure.

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The T-Stat Tissue Oximeter is a unique patient monitor that measures tissue perfusion with Visible Light Spectroscopy. VLS technology provides a reproducible value via broad band analysis. When you need reliability, you can trust T-Stat.
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Headquartered in Texas 

Designed in Silicon Valley

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The technology driven sensitivity of T-stat can detect the slightest of changes, giving you the earliest indicator of tissue saturation compromises - hours before other monitoring tools.


The T-stat continuously monitors tissue saturation (St02%) at a micro-vascular level within the capillary bed, providing a better understanding of tissue health based on real-time oxygen delivery and consumption. 

Real time tissue saturation and hemoglobin readings provide valuable data differentiating between venous and arterial compromise. 

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T-stat is the most advanced oximeter on the market. No other device uses broad band white light technology, coupled with fiber optic spectroscopy, producing data to +/-2 standard deviations. This near absolute value provides an accurate representation of flap perfusion at the microvascular level. T-stat readings represent immediate oxygen consumption in the skin island, directly correlating to arterial and venous flow. 

Don't guess what the values mean, know what they mean so you can accurately manage your patients. 


Skin surface sensors avalible in two sizes non-invasively monitor even the smallest of skin islands.


T-stat readings are always accessible/using our web-based OnCall system. The data is safe, HIPAA compliant and is readily available to you within your own private account.

View immediate St02% and Hemoglobin readings in one easy location- quicker and easier than calling bedside staff. 

"T-stat's ability to also monitor concentration has helped me identify venous outflow issues way before any visible clinical changes, greatly speeding up return to the OR and maximizing the opportunity for flap salvage. Our flap success rate is almost 100%"

Minas Chrysopoulo, MD, FACS

— Name, Title

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"T-stat really is the gold standard"

Richard A. Santucci, MD

FACS; Senior Surgeon

Crane Surgical Services

The complete monitoring system consists of the T-Stat VLS Tissue Oximeter and a sensor that is specifically designed for three unique applications. Each sensor contains a white LED light to illuminate the tissue in the capillary bed. The signal is then returned through a fiberoptic bundle for real-time spectrographic analysis.

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The T-Stat Monitoring System

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Large Surface Sensor


The surface sensor is used most commonly to monitor free tissue flaps. It is easy to place and quick to monitor the surface of tissue. Using VLS the T-Stat sensors measure in the capillary bed for a near absolute Sto2%.


Small Surface Sensor


The 1cm surface sensor is for a similar surface application and is ideal when a smaller skin paddle is available. The 1cm sensor size is also a good option when used during more complex head and neck flaps.


Oral Sensor

The oral sensor is designed to fit in the mouth of adults to neonates to monitor the saturation of the buccal mucosa, as a surrogate for GI perfusion. This information prevents excessive blood draws and provides valuable information to manage cardiac output and the arteriovenous oxygen difference.


Endoscopic Sensor

The endoscopic sensor (1.5mm, 2M in length) is designed to be used in the channel of an endoscope for assessing local perfusion. With the additional information provided by T-Stat during endoscopy, real-time treatments and therapies may be incorporated at a time when access is limited. 

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Training and Education 

In-Service Videos

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T-stat Quick Start Guide

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