Method and apparatus for conducting total liquid ventilation with control of residual volume and ventilation cycle profile
First Claim
1. A method of applying total liquid ventilation to a patient according to a ventilation cycle including inspiration and expiration profiles, comprising:
- supplying oxygenated liquid to the lungs of the patient during inspiration;
withdrawing liquid from the patient'"'"'s lungs during expiration; and
controlling independently supply of oxygenated liquid to the patient'"'"'s lungs and withdrawal of liquid from the patient'"'"'s lungs, the supply and withdrawal independent control comprising producing a ventilation cycle having independently controlled inspiration and expiration profiles.
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Abstract
A method of applying total liquid ventilation to a patient according to a ventilation cycle including inspiration and expiration profiles, comprises supplying oxygenated liquid to the lungs of the patient, withdrawing liquid from the patient'"'"'s lungs, and controlling independently supply of oxygenated liquid to the patient'"'"'s lungs and withdrawal of liquid from the patient'"'"'s lungs. This supply and withdrawal independent control comprises producing a ventilation cycle having independently controlled inspiration and expiration profiles. To carry out the method, a total liquid ventilator system comprises an inspiration pump for supplying oxygenated liquid to the lungs of the patient, an expiration pump for withdrawing liquid from the patient'"'"'s lungs, and a ventilation cycle control means. The ventilation control means comprises first and second pump controllers connected to the inspiration and expiration pumps, respectively, to control independently these inspiration and expiration pumps in order to produce a ventilation cycle having independently controlled inspiration and expiration profiles.
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Citations
37 Claims
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1. A method of applying total liquid ventilation to a patient according to a ventilation cycle including inspiration and expiration profiles, comprising:
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supplying oxygenated liquid to the lungs of the patient during inspiration;
withdrawing liquid from the patient'"'"'s lungs during expiration; and
controlling independently supply of oxygenated liquid to the patient'"'"'s lungs and withdrawal of liquid from the patient'"'"'s lungs, the supply and withdrawal independent control comprising producing a ventilation cycle having independently controlled inspiration and expiration profiles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for applying total liquid ventilation to a patient according to a ventilation cycle including inspiration and expiration profiles, comprising:
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an inspiration pump for supplying oxygenated liquid to the lungs of the patient;
an expiration pump for withdrawing liquid from the patient'"'"'s lungs; and
a ventilation cycle control means comprising first and second pump controllers connected to the inspiration and expiration pumps, respectively, to control independently said inspiration and expiration pumps in order to produce a ventilation cycle having independently controlled inspiration and expiration profiles. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification