LD TECHNOLOGY
Ankle Brachial Index/ Tbl-abi Model C001
- The TBL-ABI system is indicated for use on adult subjects at risk of having or developing peripheral arterial disease (PAD).
- TBL-ABI system is intended for the rapid measurement of ankle-brachial pressure index (ABPI), or ankle-brachial index (ABI), and pulse volume recording (PVR)/ volume plethysmography in adults.
- It is suitable for use in wound care assessment, for assessing symptomatic PAD, and as a screening device for PAD. It may also be used on patients with venous or arterial ulcers prior to the application of compression therapy.
- The ankle-brachial index (ABI) is the ratio of the systolic blood pressure measured at the ankle to that measured at the brachial artery.
MAIN MARKERS
VASCULAR FUNCTION ASSESSMENT
Originally described by Winsor in 1950, the ABI was initially proposed for the noninvasive diagnosis of lower-extremity peripheral artery disease (PAD). Later, it was shown that the ABI is an indicator of atherosclerosis at other vascular sites and can serve as a prognostic marker for cardiovascular events and functional impairment, even in the absence of symptoms of PAD
AVANTAGES OF TBL-ABI
- Improvement of the patient comfort: No tube or wire on the body
- Reduction of the technician errors when preparing the patient for taking a measurement:
- In addition of the color code of the cuffs, the devices are labelled "ARM", "RIGHT ARM",LEFT ANKLE" and " RIGHT ANKLE".
- All the cuffs are labelled with a blue arrow "DOWN" , and therefore, the technician don't have to take care about the direction of the tubes.
- 60 to 100 measurements when the battery is charged.
- Placement of the cuffs into the box using a USB charger that stop automatically when the battery is fully charged.
ANKLE BRACHIAL INDEX ALGORITHM
The ABI measurement is based on the ratio of the lowest ankle blood pressures divided by the highest arm blood pressure. Recent studies suggest the use of low ankle pressure ABI as the method for calculating the ABI due to its better sensitivity. It is simply a mathematical division based on the accuracy of the blood pressure measurements. TBL-ABI complies with the procedure for measuring the ABI with 2 blood pressure measurements at each ankle (dorsalis pedis and tibial artery) and measurements at the right and left arm.
TBL-ABI FEATURES
- Measurements based on the Pulse Volume Plethysmography: During the inflation and deflation of pressure in the cuffs, the plethysmography related to the change in blood volume in large artery is displayed. The most modern sensors and analogue-to-digital converters allow TBL-ABI sensing to 4.6 micrometers of mercury and thus enable accurate results.
- Measurements in the ankles ( DP and PT) and left and Right arm.
- Objective measurement: TBL-ABI’s specially designed algorithm is based on the plethysmographic techniques, which are independent of the operator and therefore ensures objective measuring of blood pressures and ABI . The subjectivity of the operator is thus excluded.
- Repeatable measurement: Regardless of who performs the measurement, whether it is a physician or a nurse, regardless of all the disturbances that come from the office, and whether you can feel the pulse on patient´s ankle or not. The measurement result with TBL-ABI will always be the same. The TBL-ABI’s software algorithm uses a special protocol where variables are measured and calculated equally for each examination. The measurement of the Ankle-Brachial Index is reliable as well as repeatable and thus very valuable for physicians and patients.
TBL-ABI
PATIENT SETUP
Right and Left Dorsalis Pedis (DP) Artery Pressure
Left and Right Posterior Tibial (PT) Artery Pressure
Right Bracial Artery Pressure
