System and method of administering a pharmaceutical gas to a patient
First Claim
1. A method of administering a therapy gas wherein the therapy gas is at least one gas selected from CO and NO gas to a patient during an inspiratory cycle of the patient comprising the steps of:
- determining the desired total quantity of therapy gas to be administered to the patient over a plurality of breaths;
administering the therapy gas to the patient'"'"'s alveoli during the first half of the inspiratory cycle over the plurality of breaths so that the desired total quantity of therapy gas delivered is independent of the respiratory pattern of the patient.
27 Assignments
0 Petitions
Accused Products
Abstract
A method and system for delivering a pharmaceutical gas to a patient. The method and system provide a known desired quantity of the pharmaceutical gas to the patient independent of the respiratory pattern of the patient. The preferred pharmaceutical gases are CO and NO, both of which are provided as a concentration in a carrier gas. The gas control system determines the delivery of the pharmaceutical gas to the patient to result in the known desired quantity (e.g. in molecules, milligrams or other quantified units) of the pharmaceutical gas being delivered. Upon completion of that known desired quantity of pharmaceutical gas over a plurality of breaths, the system can either terminate any further delivery of the pharmaceutical gas or can activate an alarm to alert the user that the known quantity has been delivered. The system also has alarm functions to alert the user of possible malfunctions of the system.
121 Citations
30 Claims
-
1. A method of administering a therapy gas wherein the therapy gas is at least one gas selected from CO and NO gas to a patient during an inspiratory cycle of the patient comprising the steps of:
-
determining the desired total quantity of therapy gas to be administered to the patient over a plurality of breaths; administering the therapy gas to the patient'"'"'s alveoli during the first half of the inspiratory cycle over the plurality of breaths so that the desired total quantity of therapy gas delivered is independent of the respiratory pattern of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A system for administering a therapy gas wherein the therapy gas is at least one gas selected from CO and NO gas to a patient during the patient'"'"'s inspiratory cycle, the system comprising:
-
an inlet means for connecting to a source of therapy gas, an outlet means for connecting to a device for introducing a gas into the lungs of a the patient, means for determining the desired quantity of therapy gas to be delivered to the patient over a plurality of breaths, and a gas control system for delivering the desired quantity of the therapy gas to the patient'"'"'s alveoli during the first half of the inspiratory cycle over the plurality of breaths independent of the patient'"'"'s respiratory pattern. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
19. The system of claim i8 wherein the gas control system comprises a plurality of gas flow control valves in parallel having different ranges of flow allowed therethrough.
-
30. A system for administering a therapy gas wherein the therapy gas is at least one gas selected from CO and NO gas to a patient during an inspiratory cycle of the patient, the system comprising:
-
an inlet means for connecting to a source of therapy gas, an outlet means for connecting to a device for introducing gas into the lungs of the patient, means for determining the desired quantity of therapy gas to be delivered to the patient over a plurality of breaths, a gas control system for delivering the therapy gas into the patient during the first half of the inspiratory cycle over a plurality of breaths, and an alarm device, said gas control system activating said alarm when said desired quantity of the therapy gas has been delivered to the patient.
-
Specification