This first-of-its-kind noninvasive solution unlocks Acumen Hypotension Prediction Index (HPI) software. It also provides continuous blood pressure measurements and advanced hemodynamic parameters, giving you insight to your patients' hemodynamic status.
Unlocks Acumen HPI software
Acumen IQ cuff unlocks the first-of-its-kind technology designed to help predict future hypotensive events*.
Accurately measures continuous blood pressure and hemodynamic parameters for patients who don't need, or can't have, an arterial line.1
An advanced hemodynamic monitoring solution that helps guide individualised treatment decisions.
Features of Acumen IQ cuff
Acumen IQ cuff is available on the HemoSphere advanced monitoring platform. This noninvasive finger cuff unlocks Acumen HPI software and enables you to proactively optimise perfusion using continuous blood pressure and advanced hemodynamic parameters. The finger cuff provides automatically calculated, beat-to-beat hemodynamic information and offers you access to advanced hemodynamic parameters for patients who don’t need, or can’t have, an arterial line.
Advanced hemodynamic parameters
- Hypotension Prediction Index (HPI)
- Maximum slope of the arterial pressure upstroke (dP/dt)
- Dynamic arterial elastance (Eadyn)
- Stroke volume (SV)
- Stroke volume variation (SVV)
- Mean arterial pressure (MAP)
- Cardiac index (CI)
- Systemic vascular resistance (SVR)
|Model numbers||Description||Unit of Measure|
|AIQCS||Acumen IQ cuff - small||EA|
|AIQCM||Acumen IQ cuff - medium||EA|
|AIQCL||Acumen IQ cuff - large||EA|
The easy application and snug fit of the Acumen IQ finger cuff self-coiling design eliminates placement errors on a patient to improve consistency.
Manage perfusion, noninvasively
Maintaining necessary peripheral perfusion requires adequate peripheral blood pressure and adequate cardiac output. Acumen IQ cuff offers advanced hemodynamic parameters and continuous blood pressure to help you monitor perfusion, and access to the Acumen HPI software provides you insight to determine the root cause of instability.
Dynamic and flow-based parameters are more informative than conventional parameters in determining fluid responsiveness and may help guide individualised volume administration in patients and avoid excessive or insufficient administration.2
Continuous access to pressure and flow parameters allows you to evaluate hemodynamic instability and guide appropriate treatment. When managing perfusion, stroke volume can be optimised using the patient’s own Frank-Starling curve.
Avoidance of hypotension and strategies to optimise fluid management in surgical patients are two modifiable factors that may contribute to improved patient outcomes.
Easy-to-use finger cuff
The Acumen IQ finger cuff design reduces variability in application. The easy-to-use self-coiling mechanism within the interior of the cuff wraps around the patient’s finger and offers consistent snugness and usability.
Volume clamp method
The essence of the volume clamp method involves clamping the artery to a constant volume by dynamically providing equal pressure on either side of the arterial wall. The volume is measured by a photo-plethysmograph built into the cuff.
The counter pressure is applied by an inflatable bladder inside the cuff and is adjusted 1,000 times per second to keep the arterial volume constant.
Continuous recording of the cuff pressure results in real-time finger pressure waveform.1
The Physiocal method—Physiological Calibration
Physiocal is the real-time method for determining the proper arterial ‘unloaded’ volume, i.e., the volume without a pressure gradient across the arterial wall. Physiocal analyses the curvature and sharpness of the plethysmogram during short episodes of constant pressure levels. It then automatically and periodically recalibrates the system allowing accurate tracking of physiologic changes, e.g., in vasomotor tone.
Calibration interval starts at 10 beats, but it increases to every 70 beats as stability increases. Physiocal interval >30 beats is considered reliable.3
Brachial pressure reconstruction
Clinical standard for noninvasive BP is brachial level. Acumen IQ cuff reconstructs the brachial arterial pressure waveform from the finger arterial pressure waveform. The reconstruction algorithm is based on a vast clinical database.4
Cardiac output calculation
Stroke volume is calculated by an algorithm based on an improved pulse contour method. Cardiac output results from stroke volume times heart rate, and is updated every beat.5
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- *A hypotensive event is defined as MAP <65 mmHg for a duration of at least one minute.
- Peñáz J. Photoelectric measurement of blood pressure, volume and flow in the finger. Digest of the 10th Conference on Medical and Biological Engineering. Dresden, Germany; 1973:104.
- Cannesson, M. (2010) Arterial pressure variation and goal-directed fluid therapy. Journal of Cardiothoracic and Vascular Anesthesia, 24(3), 487-97.
- Wesseling KH, et al. Physiocal, calibrating finger vascular physiology for Finapres. Homeost Health Dis. 1995;36(2-3):67-82.
- Gizdulich P, et al. Models of brachial to finger pulse wave distortion and pressure decrement. Cardiovasc Res. 1997;33(3):698-705. doi: 10.1016/S0008-6363(97)00003-5.
- Truijen J, van Lieshout JJ, Wesselink WA, Westerhof BE. Noninvasive continuous hemodynamic monitoring. J Clin Monit Comput. 2012;26(4):267-78. doi: 10.1007/s10877-012-9375-8
For professional use
For a listing of indications, contraindications, precautions, warnings, and potential adverse events, please refer to the Instructions for Use (consult eifu.edwards.com where applicable).
Edwards Lifesciences devices placed on the European market meeting the essential requirements referred to in Article 3 of the Medical Device Directive 93/42/EEC bear the CE marking of conformity.
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