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Synchronizing chest compression and ventilation in cardiac resuscitation

  • US 20070225623A1
  • Filed: 02/16/2006
  • Published: 09/27/2007
  • Est. Priority Date: 02/16/2006
  • Status: Active Grant
First Claim
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1. Apparatus for automatic delivery of chest compressions and ventilation to a patient, the apparatus comprising:

  • a chest compressing device configured to deliver compression phases during which pressure is applied to compress the chest and decompression phases during which approximately zero pressure is applied to the chest;

    a ventilator configured to deliver positive, negative, or approximately zero pressure to the airway;

    control circuitry and processor, wherein the circuitry and processor are configured to cause the chest compressing device to repeatedly deliver a set containing a plurality of systolic flow cycles, each systolic flow cycle comprising a systolic decompression phase and a systolic compression phase, and at least one diastolic flow cycle interspersed between sets of systolic flow cycles, each diastolic flow cycle comprising a diastolic decompression phase and a diastolic compression phase, wherein the diastolic decompression phase is substantially longer than the systolic decompression phase.

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