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Methods and apparatus for closed-circuit ventilation therapy

  • US 6,041,777 A
  • Filed: 12/01/1995
  • Issued: 03/28/2000
  • Est. Priority Date: 12/01/1995
  • Status: Expired due to Fees
First Claim
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1. A process for closed-circuit partial liquid ventilation therapy comprising the steps of:

  • introducing at least one non-anesthetic gas or vapor into pulmonary air passages of a respiring patient;

    capturing expiratory gas from said patient in a closed-circuit respirator in fluid-conducting communication with said pulmonary air passages, said expiratory gas comprising carbon dioxide and at least a portion of said introduced gas or vapor;

    circulating said expiratory gas through a gas flow path defined by said closed-circuit respirator wherein at least a portion of said carbon dioxide is removed; and

    thereafter reintroducing at least a portion of the circulated expiratory gas comprising said introduced gas or vapor into the pulmonary air passages of the patient.

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