LUCAS, the first aid device that can fight death!

When someone suffers from respiratory arrest or cardiac arrest due to drowning, heart disease, high blood pressure, car accident, drug poisoning, gas poisoning, foreign matter blocking the respiratory tract, etc. we should provide emergency rescue in time to prevent the patient from not getting enough Timely rescue and resuscitation can cause irreversible damage to the brain and other important organs and tissues of the human body. The first aid method we use is called cardiopulmonary resuscitation (CPR), which is a life-saving technique for cardiac arrest and respiratory arrest. It uses chest compressions to restore the patient's spontaneous breathing and circulation.

In the cardiopulmonary resuscitation guidelines jointly developed by the International Resuscitation Federation and the American Heart Association, the content of cardiopulmonary resuscitation is formulated as: first performing chest compressions (Compressions), then opening the airway (Airway), and then artificial respiration (Breathing). ), get an automated external defibrillation (Defibrillation), or "C-A-B-D" as soon as possible.

Among them, chest compressions are divided into manual chest compressions and mechanical chest compressions. Manual chest compressions can provide initial and very important help when patients have cardiac arrest, but as time goes by, researchers found that 92.9% of compressions performed within the first minute were effective, and 92.9% of the compressions performed within the second minute were effective. It begins to gradually decrease at the 5th minute, and at this time the rescuers will hardly be aware of this decrease; in addition, the rescuer's compression rate is less than 90 times per minute for 1/3 of the duration of cardiac arrest, and 40% The time of pressing is too shallow. In addition to the above problems, there are also problems such as the inability to provide sufficient cardiac output and the inability to receive defibrillation treatment at the same time.

Because high-quality manual chest compressions can be challenging or dangerous for rescuers, mechanical chest compressions are generally considered in specific situations, as long as interruptions in CPR are strictly limited during deployment and removal of the device. Press the device.

Currently, commonly used mechanical chest compression devices include LUCAS and AutoPulse. Among them, LUCAS helps rescuers by providing effective, consistent and continuous chest compression methods recommended in the American Heart Association guidelines. This is a portable tool designed to eliminate the problems associated with manual chest compressions. LUCAS is the abbreviation of "Lund University Cardiac Assist System", and the official trademark is LUCAS. LUCAS is commonly used to perform chest compressions on adult patients who experience acute cardiac arrest (i.e., loss of spontaneous breathing, pulse beat, and unconsciousness).

LUCAS not only improves the quality of chest compressions, but also reduces the interruption time when transitioning from manual to LUCAS mechanical chest compressions; it also provides high quality during patient movement, transportation, prolonged CPR, and in the cath lab. , stable chest compressions. Paramedic safety is also protected, whether that's the risk to paramedic safety in an ambulance crash or the risk of exposure to X-rays during PCI in the cath lab.

Clinical trials have proven that LUCAS is not only safe and effective, causing damage comparable to manual chest compressions, but also has very good neurological results. It can also significantly increase the ROSC rate from 26% to 41%, providing the human body with more than 15mmHg threshold. Coronary perfusion pressure and coronary blood flow (TIM III), increase the average ETCO2 value. Compared with manual chest compressions, the chest compression score recorded by LUCAS is as high as 93%, the ventilation time is longer, and stable depth and rate can be maintained. In addition, the LUCAS device can defibrillate outside the suction cup during continued compressions without stopping. Therefore, the highest quality chest compressions provided by LUCAS avoid the hazards of low-quality chest compressions and become an alternative to manual chest compressions. However, LUCAS is not limited to cardiopulmonary resuscitation, it also plays an important role in the field of cryopreservation.

In the human cryopreservation project conducted by Yinfeng Cryo-Cryogenics and Shandong Yinfeng Life Sciences Research Institute, LUCAS 2 was used to maintain the physiological functions of volunteers. LUCAS 2 is the second generation product of LUCAS. Unlike the compressed air drive of the first generation device, LUCAS 2 is powered by batteries. During the implementation of the human cryopreservation project, LUCAS 2 performed chest compressions to restore the heart pumping blood of volunteers immediately after clinical death, transport nutrients and oxygen to the whole body, and slow down the degeneration of cells, tissues and organs throughout the body. exhaustion and apoptosis to maintain the body functions of volunteers; because LUCAS 2 is powered by batteries, it can be continuously used during transfer and surgery without interfering with other operations; during the transfer process, LUCAS 2 provides power to the blood It helps the rapid diffusion of low-temperature saline, helps the body quickly cool down, and reduces the respiration of body cells; in addition, it provides signals for arterial and venous intubation in the early stages of surgery, speeding up initial preparations for surgery.

The series of professional medical devices such as LUCAS 2 used by Shandong Yinfeng Life Sciences Research Institute are not only an expansion of the application direction of professional medical devices, but also a reflection of a serious and responsible attitude towards the great cause of human body cryopreservation. Using professional medical The equipment serves volunteers and creates an environment conducive to the development of human cryopreservation, making human preservation closer to clinical practice and allowing more advanced medical technologies to enter human preservation.

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A brief history of LUCAS

In the 1990s, Norwegian paramedic Willy Vistung saw a resuscitation attempt on a patient being transported on a stretcher and wondered how cardiopulmonary resuscitation (CPR) could be improved. He found Professor Stig Steen from Lund University Hospital in Sweden, hoping to overcome the limitations of manual CPR by manufacturing an automatic chest compressor. In the late 1990s, development of the LUCAS device began. Professor Stig Steen and his team conducted a series of experimental studies to better understand the pathophysiology of cardiac arrest and the efficacy of chest compressions. The study attracted global attention and showed that effective chest compressions are critical to outcomes. In experimental pig studies, LUCAS was shown to significantly improve coronary perfusion pressure and cerebral blood flow compared with manual compressions.

In 2003, the first pneumatic LUCAS1 device was clinically used in an ambulance in Sweden. LUCAS was immediately appreciated because it frees up hands, reduces clutter around the patient, and increases safety when providing CPR in a moving ambulance. In 2009, the second-generation battery-powered LUCAS2 was launched globally.

A growing number of emergency medical systems and hospitals in the United States, Europe and Asia are using the device. In June 2016, the third generation of LUCAS was launched as LUCAS3.