“Nothing better epitomizes Rijuven’s DNA and unique innovative and epic spirit than the CardioSleeve, and conveys our responsible and imaginative vision of the future of health care.”

– Raj Kapoor, MD, FCCP


The CardioSleeve stethoscope accessory comes loaded with features of tremendous diagnostic and therapeutic value. Once attached, a stethoscope is magically transformed to a level beyond auscultation.

Heart Sound

CardioSleeve transcends the limitation of human hearing and overcomes the inadequacies of the modern stethoscope. The audiovisual display overpowers the threshold of audibility and allows to measure the relative intensity of S1 and S2, visually verify split S2, amplify murmurs, and replay heart sounds at half speed for analysis. The integrated murmur detection software (with a 90% or more accuracy) aids in the diagnoses of pathological and physiological heart sounds even at heart rates of up to 180 bpm!

The timely and objective reliable results thus reduce unnecessary referrals and tests; provide legal protection, improve outcomes and patient care experience making CardioSleeve an indispensable cost-effective tool for definitive diagnosis at any point of care.



Heart Rhythm

CardioSleeve attaches to just about any stethoscope and turbocharges with ECG capabilities. It allows simultaneous auscultation along with a high fidelity 3-lead ECG recording. Both the audio and electrical footprints of the heart are recorded and transmitted to compatible computers or smartphones via Bluetooth for real-time or historical analysis. CardioSleeve dry-contact sensors reduce the likelihood of allergic reactions since the use of contact sprays or gels or adhesive electrodes is completely eliminated.

The included digital caliper measurements help assess atrial fibrillation and other cardiac rhythm irregularities, conduction system abnormalities, myocardial ischemia, drug induced alterations, metabolic disturbances, sport screening and risk assessment for sudden cardiac death. Medical professionals, emergency medical services, ambulances, offices, clinics, airlines, cruise lines, or rescue teams will undoubtedly find CardioSleeve utility a life saver in any clinical scenario.


Heart Failure

CardioSleeve represents the most significant advancement in the development of the modern stethoscope to date.  For the first time, the integration of an already proven exciting, new, easy-to-use, modernized cutting edge technology of Systolic Performance Index has been added to the hallmark of the physician!

The technique incorporates simultaneous acquisition and quantitative measurements of combined ECG and cardiac acoustical data. This permits acquisition of detailed information regarding systolic left ventricular function and provides both a computerized interpretation and a visual display of the findings.

The ease of use and low cost of SPI makes it useful for the evaluation and monitoring of patients with known or suspected heart disease in a variety of clinical settings such as: Heart Failure, Cardiotoxic Chemotherapy, Mass Screening for Rheumatic Heart Disease, and Sports Screening for IHSS.



 Check the health of a beating heart!


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CardioSleeve Benefits

Advanced technologies and reliance on specialist referrals have become so much the standard in the practice of cardiac medicine that physicians have abandoned basic cardiac assessment techniques and are unable to acquire the cardiac findings that may be obtained with the stethoscope. CardioSleeve solves this problem while providing more benefits:


- Timely and objective
- Repeatable reliable results
- Increased confidence and efficiency
- Reduced unnecessary referrals
- Enhanced care coordination
- Accessible at any point of care

- Immediately actionable results to the patient
- Safer, streamlined diagnostic acquisition
- Reduced costs of unnecessary referrals
- Increased outcomes
- Better patient care experience and continuum


With CardioSleeve, clinicians can hear, view, record and analyze real time waveforms. CardioSleeve’s simultaneous analysis of the heart’s electrical and acoustical footprints allow for simple, quick and accurate diagnosis support for murmur and other heart pathologies. CardioSleeve also provides heart assessment tools such as zoom, caliper and Cardiac Index.





Atrial Fibrillation is the most common cardiac arrhythmia and is responsible for a 5-fold increased risk of all strokes. More than 33 million people (including 3 million Americans) around the world are affected.

Atrial Fibrillation is more common in people who have: High blood pressure, Coronary heart disease, Rheumatic heart disease, Mitral valve prolapse, Pericarditis, Congenital heart defects, Sick sinus syndrome, Sleep apnea or Metabolic Syndrome.

Patients with Atrial Fibrillation may experience symptoms of palpitations, decreased Blood Pressure, lightheadedness, shortness of breath or chest pain. However, Atrial Fibrillation may be asymptomatic, and thus subclinical, causing no alarm to doctor or patient. Even in patients with documented symptomatic Atrial Fibrillation, asymptomatic recurrences are common. The first evidence of asymptomatic Atrial Fibrillation may be a devastating stroke

The estimated sensitivity of detecting Atrial Fibrillation during routine primary care visit is 64%. This low result probably reflects the pulse not being checked routinely or carefully. An ECG exam with CardioSleeve is invaluable in detecting silent or symptomatic Atrial Fibrillation with 99% sensitivity at any point of care.





After adjusting for other risk factors, the risk of sudden cardiac death is more than 3-fold higher in individuals with abnormal QTc compared with the normal. Prolonged QTc intervals may cause triggering of life-threatening arrhythmias including: Torsades de pointes and Ventricular fibrillation.

CardioSleeve ECG digital caliper instantly calculates QTc and alerts the physician about the risk. Some common conditions with abnormal QT interval include:

- Familial Long QT syndrome

- Medications such as antibiotics, antidepressants, antihistamines, diuretics, heart medications, cholesterol-lowering drugs, diabetes medications, as well as some antifungal and antipsychotic drugs may induce prolonged QTc. FDA has prompted warnings by this need to balance risks and benefits.

- Conditions such as Myocardial Infarction, Coronary artery disease, Myocarditis, Cardiomyopathy, Congenital heart disease, Rheumatic heart disease, Myocarditis, Hypothyroidism, Hypocalcemia, Hypomagnesemia, Hypothermia may induce prolonged QTc.