Cardiac Bypass Machines




Fig. 81.1 Schematic diagram of Cardio pulmonary bypass machine





 

  • 2.


    Components [1]:


    1. (a)


      Venous reservoir

       

    2. (b)


      Membrane oxygenator bundle

       

    3. (c)


      Venous and arterial blood line/cannula

       

    4. (d)


      Arterial filter purge line

       

    5. (e)


      Arterial line filter

       

    6. (f)


      Venous blood pump (also called the arterial pump head; this pump forces venous blood through the membrane oxygenator and arterialized blood to the patient’s aortic root)

       

    7. (g)


      Cardiotomy suction pump

       

    8. (h)


      Ventricular vent (left ventricular vent)

       

    9. (i)


      Cardioplegia pump

       

    10. (j)


      Crystalloid cardioplegia

       

    11. (k)


      Water inlet line

       

    12. (l)


      Water outlet line

       

    13. (m)


      Gas inlet line

       

     






      • Functions:


        1. (a)


          Oxygenation and carbon dioxide elimination

           

        2. (b)


          Circulation of blood

           

        3. (c)


          Systemic cooling and rewarming

           

        4. (d)


          Diversion of blood from the heart to provide a bloodless surgical field

           



      1. 3.


        Extracorporeal circulation or extracorporeal life support is mechanical cardiopulmonary support. When it is used in the operating room to provide total support of heart and lung function to facilitate cardiac surgery, the technique is commonly called cardiopulmonary bypass (CPB). When used with extrathoracic cannulation for respiratory support, the technique is called extracorporeal membrane oxygenation (ECMO), and for renal support it is termed as hemodialysis [2].

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    1. Sep 23, 2017 | Posted by in Uncategorized | Comments Off on Cardiac Bypass Machines
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