Surgery – Respiratory method or device – Means for indicating improper condition of apparatus
Patent
1998-05-26
2000-12-26
Weiss, John G.
Surgery
Respiratory method or device
Means for indicating improper condition of apparatus
12820312, 12820314, 12820421, 12820423, 12820523, A61M 1600, A62B 2700, A62B 900, G08B 300
Patent
active
061642762
ABSTRACT:
A respiratory therapy apparatus that delivers a predetermined precise volume of a therapeutic gas to a patient upon each inhalation of the patient. The apparatus has a flow sensing device and a valve that opens and closes to deliver the pulse to the patient. A CPU controls the open time of the valve and also uses the flow to the patient determined by the flow sensing device and the time the valve is in the open position to determine the volume of therapeutic gas to the patient. A user input device communicates a user desired volume to be delivered to the patient and the CPU compares the user input desired volume with the calculated volume and adjusts the time the valve is in the open position to cause the apparatus to deliver to the patient the precise desired volume inputted by the user. In one embodiment the system senses and used the ambient temperature and ambient pressure to determine the correct volume of gas delivered to the patient. The apparatus thus provides a precise volume of therapeutic gas to the patient during each inhalation independent of supply pressure of the therapeutic gas, the ambient pressure, ambient temperature or the size of the inhalation.
REFERENCES:
patent: 4462398 (1984-07-01), Durkan et al.
patent: 4665911 (1987-05-01), Williams et al.
patent: 4823788 (1989-04-01), Smith et al.
patent: 4932402 (1990-06-01), Snook et al.
patent: 5005570 (1991-04-01), Perkins
patent: 5038771 (1991-08-01), Dietz
patent: 5531218 (1996-07-01), Krebs
patent: 5558083 (1996-09-01), Bathe et al.
patent: 5558086 (1996-09-01), Smith et al.
patent: 5603315 (1997-02-01), Sasso, Jr.
patent: 5732693 (1998-03-01), Bathe et al.
patent: 5752504 (1998-05-01), Bathe
patent: 5794615 (1998-08-01), Estes
patent: 5839433 (1998-11-01), Higenbottam
patent: 5839434 (1998-11-01), Enterline
patent: 5845633 (1998-12-01), Psaros
patent: 5865174 (1999-02-01), Kloeppel
patent: 6089229 (2000-07-01), Bathe et al.
"Inhaled Nitric Oxide in Persistent Pulmonary Hypertension of the Newborn" and "Low-dose Inhalational Nitric Oxide in Persistent Pulmonary Hypertension of the Newborn"--The Lancet, vol. 340, Oct. 1992, pp. 818-820.
"Inhaled NO-the past, the present and the future"--Anesthesiology, vol. 78 (1993), pp. 413-416.
"Pulsed delivery of inhaled nitric oxide to patients with primary pulmonary hypertension"--Channick et al. --Chest/109 Jun. 1996, pp. 1545-1549.
Bathe Duncan P. L.
Montgomery Frederick J.
Datex-Ohmeda Inc.
Weiss John G.
Weiss Joseph F.
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