Cardiac pacemaker

Decent Essays
Improved Essays
Superior Essays
Great Essays
Brilliant Essays
    Page 1 of 34 - About 338 Essays
  • Improved Essays

    Natural Cardiac Pacemaker

    • 352 Words
    • 2 Pages

    During one year, the heart initiates approximately 32 million heartbeats to pump blood around the body, beating a total of 60-80 times per minute at a normal pace. It is a highly efficient organ and constantly works to keep our blood circulation going and ourselves alive. The high efficiency of the heart pumping system originates in a conductive system, which is linked to the Sinoatrial (S-A) and Atrioventricular (A-V) node. The Sinoatrial node, also known as the natural cardiac pacemaker, is located in the upper part of the right atrium and initiates the contractions of the cardiac muscle by producing special electrical impulses which act as an activation signal for the heart to contract. This occurs in form of a depolarization, which firstly…

    • 352 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    -Your heart beat works from the electrical impulses that travel down pathways through your heart. The normal sinus rhythm is initiated by the SA node also known as the sinoatrial node. It is also known as the hearts natural pacemaker due to the fact it beat 100 bpm. The electrical activity then spreads through the wall of the atria and as a result causes them to contract before it reaches the AV node. From there the AV node conducts electrical impulses from the atria to the ventricles while…

    • 276 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Implantable cardiac pacemakers By virtue of the light weight and high theoretical capacity of lithium metal, lithium primary batteries have been widespread in health-improving medical devices since the successful implantation of the first lithium-powered pacemaker in 1970s.29, 30 Depending on the power level, implantable medical device primary batteries fall into several categories: low-rate batteries outputting microwatts of power such as batteries for cardiac pacemakers and hearing devices;…

    • 474 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    P Wave Deflection

    • 717 Words
    • 3 Pages

    right bundle branch, the electrical depolarization must go through the left bundle branch and put the RBBB at rest, so it takes a while longer than it should. It’s amazing how the heart is so powerful and have many parts that contribute to how it function and how people live. In regards to the waves, it gives a visual of how a person heart rate goes up and down and to look for any normal or abnormal heart rhythm. Since the P wave is the sinoatrial node, which is the pacemaker of the…

    • 717 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    TB incidence has fallen by an average of 1.5% per year since 2000. This needs to accelerate to a 4–5% annual decline to reach the 2020 milestones of the "End TB Strategy" (“Key”). If these statistics continue, the discoveries made in the 20th century will be the reason these advancements now are successful. The second major advancements in cardio during the 20th century were also through instruments and tools. Pacemakers had been thought of but never executed until 1958. A pacemaker is an…

    • 1418 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    was the day his autonomy was taken away from him, and all the decisions were put on his wife who was his power of attorney. As Jeffrey’s condition got worse, his wife made the life altering decision to place a pacemaker to keep her husband alive, and since that day she and her daughter have fought to end his suffering. The issue is whether to respect the power of attorneys autonomy and comply with the desire to deactivate the pacemaker or if it is beneficent to do so. The article “What Broke…

    • 1197 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    industry has its superiority to override. When comparing the drugs, medical devices are relatively less side effects and controllable such that when dealing with cancer, using chemotherapy is better than taking tones of pills that the effects on patients are easily to control and observe. Moreover, one of the critical point for medical devices is that the time of discovery new devices is shorter than a new drug is found (AusBioTech, 2015, para 5). Compare to healthcare products, the treatment of…

    • 809 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Micra has created the smallest pacemaker yet. It is 93% smaller than any conventional pacemaker, which makes it about the size of a large vitamin capsule which is about 1.75g, compared to a 44 x 52 x 6mm, 23.5g pacemaker. Unlike most pacemakers that are placed in the patient's chest with leads running to the heart, Micra is implanted directly into the patient’s heart. Some of the impact on society are: Its less invasive as the Micra is placed in the heart via a vein in the leg, which therefore…

    • 526 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    In this paper you will find information about pacemakers and defibrillators. Pacemakers and defibrillators are devices that help keep the heart in rhythm. If the heart starts to beat to slow or to fast it will send an electrical shock to get it back on pace. When you get one or both devices implanted in you will need to have regular check-up with the doctors, these should not affect your daily life. Later on in the article you read that you may be allowed to still participate in fast paced…

    • 1028 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    The Corporate Veil In the Law and Order episode “The Corporate Veil” the standard of morality is cheapened by the insatiable need for easy money. Many characters throughout the episode displayed that behavior in varying degrees. In addition, we also see how laws not being in place allow such activities to go on. In the episode we meet a young boy named Roberto Martinez, who two years ago had an operation for the installation of a pacemaker. Tragically Roberto dies and the police are called…

    • 817 Words
    • 4 Pages
    Improved Essays
  • Previous
    Page 1 2 3 4 5 6 7 8 9 34